Isuzu engines carry a two-character prefix which designate the number of cylinders and engine family. Engines available currently include the following:
There is also a three-cylinder version called the 3AA1. The Bosch PES-K fuel pump is shared with the 2AB1, and is similar to the PES-A used on the 3AA1, 3AB1, C220, and C240 engines.[9]
A marinised version is produced by Klassen Engines - the Suzie 14
653 cc (39.8 cu in)
1983
2KC1
74 mm (2.9 in)
76 mm (3.0 in)
653 cc (39.8 cu in)
1988-1994
UM-2KC1
A marinised version of the 2KC1. Also marinised briefly by Beta Marine Limited.
74 mm (2.9 in)
76 mm (3.0 in)
Three-cylinder
Diesel
A Engines
Designation
Description
Bore
Stroke
Displacement
Power Rating
Production Run
Dry Weight
3AA1
This engine shares the bore and stroke of the C190 four-cylinder diesel and 2AA1 two-cylinder. The Bosch PES-A fuel pump is the same as the one used on the 3AA1, 3AB1, C220, and C240 engines.[9]
Isuzu's first petrol engines were license built Hillman units for the locally assembled Minx, from 1953. Called the GH10 it has a bore of 65 mm (2.56 in) and a stroke of 95 mm (3.74 in) for a displacement of 1,260 cc (76.9 cu in). Power is 37.5 PS (28 kW). In 1955 this was updated to the GH12, a square design with a 76.2 mm bore and stroke for a displacement of 1,390 cc (84.8 cu in). This was upgraded in 1956 for more power, 46 PS (34 kW) rather than the original's 43 PS (32 kW), and was renamed GH100. In 1958, power increased yet again, to 50 PS (37 kW).[15]
GL engine
For 1959 Isuzu developed their own square design (78 mm or 3.07 in) called the GL150, Isuzu's first own petrol engine.[16] Still showing unmistakable Hillman origins it displaces 1,491 cc (91.0 cu in) and has 60 PS (44 kW).[15] The GL150 was fitted to the 1959 Isuzu Elf and the 1961 Bellel.
The 1.4 L G140 engine was used in the Chevrolet Chevette in North America. The engine block and associated components for the USA market Isuzu G-series engines were locally produced under license by a GM engine casting and assembly plant in Flint, Michigan. In South America an overhead-cam version was adapted, and later developed into a 1599 cc version with a 75.7 mm stroke.[18]
The eight-valve 1.6 L G160/G161 engine was used in the Isuzu Florian and the Isuzu Bellett GT, as well as a number of commercial vehicles including the Elf 150 (KA41/51). The G160 has a three main bearingcrankshaft, whereas the G161 has five bearings. There is also an SOHC version of this called the G161S, which was used in the Florian and the Bellett. A new version of this engine, with the same dimensions, was called the G161Z and was installed in the Florian, Isuzu Gemini, Holden Gemini and Holden Rodeo, and Chevrolet Chevette. Part of the "Z" engine family, this was later renamed the 4ZA1. A further (albeit earlier) development was the twin-camG161W engine (still with eight valves) first presented in the Isuzu Bellett GT-R in March 1968.[19]
The 1.8 L G180SS engine was used in the Isuzu Bellett GT. The 1.8 L G180Z SOHC engine was used in the 1972–1976 Opel Kadett, Isuzu Gemini, Chevrolet LUV, and Isuzu 117 Coupé. There is also the G180WDOHC eight valve engine which was used in the Gemini ZZ (Japan only) and the Isuzu 117 Coupé.
The 2.0 L G200Z engine was used in the 1981–1985 Chevrolet LUV and also Isuzu Trooper (Holden Jackaroo in Australia). With carburettor it has 86 hp, with EFI in the Isuzu Piazza 90 hp in the US and 110 hp in Japan. The G200W DOHC eight valve engine was found in the 19??-1985 JDM, Isuzu 117 Coupé and early Isuzu Piazza with 135 hp (101 kW) and 123 lb·ft (167 N·m) of torque. It was also installed in 1982–1985 GMC S-15 pickup trucks,[20] where it received the LR1 engine code. Unlike the 1.4 which was locally produced, the G200 was imported. It was also used with the second generation LUV and Isuzu P'UP until GM discontinued it as the entry level powerplant when the Iron Duke was made the base motor after 1985; some early S10/S15s came with the optional GM 122 engine shared with its J-platform compacts since it was locally produced.
This 2-liter inline-four is a gasoline-powered version of the diesel C190. It has an 8.0 : 1 compression ratio. It was fitted to certain models of the Isuzu Elf 250 (TLG42).
86 mm (3.4 in)
84 mm (3.3 in)
1,951 cc (119.1 cu in)
93 PS (68 kW) at 4800 rpm 16.0 kg⋅m (157 N⋅m; 116 lb⋅ft) at 3000 rpm[21]
SOHC
Isuzu X engine
4XE1 DOHC engine in a 1991 Isuzu Stylus (US-market Gemini)
The 1.5 L 4XC1 SOHC engine was the base engine for the Isuzu Gemini FF, the JT22 series Isuzu Piazza, and its Chevrolet Spectrum derivatives. Power ranged from 70 hp (52 kW) in US-spec versions via 76 PS (56 kW) in the non-catalyzed European models, to a turbocharged version with 120 PS (88 kW) (down to 110 hp SAE in the US).[23] Later versions received a twelve-valve head, as installed in the JT150 Gemini it offered 100 PS (74 kW) at 6,000 rpm.[24]
77 mm (3.0 in)
1,471 cc (89.8 cu in)
SOHC
4XE1-V
The 1.6L 4XE1-V engine was used in the base model Geo Storm and the base model Isuzu Stylus S.
80 mm (3.15 in)
1,588 cc (96.9 cu in)
96 hp (72 kW; 97 PS)
SOHC
4XE1-UW
The 1.6L 4XE1-UW engine was used in the 1990-1991 Isuzu Impulse XS, in the 1990-1991 Isuzu Stylus XS, in the 1990-1991 Geo Storm GSi, and the M100 Lotus Elan.
130 hp (97 kW; 132 PS) 140 PS (103 kW) in Japanese spec.
The 1.6L 4XE1WTturbocharged engine was used in the M100 Lotus Elan, the Isuzu Impulse RS, and the 1991 Isuzu Stylus RS as well as the JDM Gemini sedan.
160 hp (119 kW; 162 PS) 180 PS (132 kW) in Japanese spec.[26]
16 Valve DOHC
4XF1
The larger 1.8L 4XF1 replaced the 4XE1 in North America. This engine was used in the 1992-1993 Geo Storm GSi, in the 1992 Isuzu Stylus RS, and in the Asüna Sunfire. In Japan it was installed in the Isuzu Piazza, where it had 150 PS (110 kW).[26]
90 mm (3.54 in)
1,809 cc (110.4 cu in)
140 hp (142 PS; 104 kW) 125 lb⋅ft (169 N⋅m)
16 Valve DOHC
Isuzu Z engine
Designation
Description
Bore
Stroke
Displacement
Power Rating
Valvetrain
4ZA1
The 1.6L 4ZA1 engine is based on the earlier G161 engine.
82 mm (3.2 in)
75 mm (3.0 in)
1,584 cc (96.7 cu in)
SOHC
4ZB1
The 1.8L 4ZB1 engine was used in the 1981 to 1985 Isuzu Fargo. It was a development of the earlier G180 engine. It has also been built by Hindustan Motors in India since the 1990s, replacing the G180Z there.
84 mm (3.3 in)
82 mm (3.2 in)
1,817 cc (110.9 cu in)
88 PS (65 kW)
8 Valve SOHC
4ZC1
The 2.0L 4ZC1 engine was used in the Isuzu Fargo van from 1986 onward, where it produced 94 PS (69 kW). This was also used in the Isuzu Aska, where it produced 110 PS (81 kW) (JIS). The export version claimed 100 PS (74 kW). A 150 PS (110 kW) turbo version (4ZC1-T) could be found in the Isuzu Piazza & Isuzu Aska.
88 mm (3.5 in)
82 mm (3.2 in)
1,994 cc (121.7 cu in)
8 Valve SOHC
4ZD1
The 2.3L 4ZD1 could be found in the Pickup, the MU/Wizard/Rodeo/Amigo, and the Trooper. Max power in the Amigo/MU was 96 hp (72 kW), while export market Troopers (carburetted) produced 110 PS (81 kW) and the MY 1988/89 US market Isuzu Piazza received an MPFi version with 110 hp (82 kW) at 5000 rpm.[27]
89.3 mm (3.52 in)
90 mm (3.54 in)
2,255 cc (137.6 cu in)
8 Valve SOHC
4ZE1
The 2.6L 4ZE1 engine was available as an option to replace the 4ZD1 on four-wheel-drive models. It was fitted to the MU/Wizard/Rodeo/Amigo, the Trooper, and the Pickup. Later models received a slightly bigger bore and displacement.
92.6 mm (3.65 in) 93.0 mm (3.66 in)
95.0 mm (3.74 in)
2,559 cc (156.2 cu in) 2,581 cc (157.5 cu in)
115–122 PS (85–90 kW)
8 Valve SOHC
Diesel
Isuzu B engine
Isuzu considered the B engine their "small" truck engine. Initially designed in 1969 as a 3.6-liter four cylinder or a 5.4-liter six-cylinder direct injection unit, other displacements were added later on.[28] In 1980 a 3.3-liter version appeared.
Designation
Description
Bore
Stroke
Displacement
Power Rating
Valvetrain
4BA1
The 4BA1 is a 2.8L diesel sold in Isuzu Elf light trucks of several generations.
98 mm (3.9 in)
92 mm (3.6 in)
2,775 cc (169.3 cu in)
75 PS (55 kW) 165 N⋅m (122 lb⋅ft) at 2200 rpm
4BB1
The 4BB1 is a direct injection diesel sold in Isuzu ELF and KT light trucks from 1973 to 1979. It is a four-cylinder version of the 6BB1.
102 mm (4.0 in)
110 mm (4.3 in)
3,595 cc (219.4 cu in)
80 to 100 PS (59 to 74 kW) at 3300-3400 rpm 265 N⋅m (195 lb⋅ft) at 2000 rpm
4BC1
The 4BC1 is a 3.3L diesel sold in Isuzu ELF light trucks from 1980 to 1982.
100 mm (3.9 in)
3,268 cc (199.4 cu in)
85 PS (63 kW) 175 N⋅m (129 lb⋅ft) at 2500 rpm
4BC2
The 4BC2 is a 3.3 L direct injection version of the 4BC1. It was sold in the Isuzu ELF and NPR trucks from 1982 to 1987.
90 PS (66 kW) at 3500 rpm 200 newton-metres (148 lb⋅ft) at 2000 rpm
4BD1
The 4BD1 is a 3.9L direct injection diesel sold in Isuzu ELF trucks as well as marine and industrial applications from 1979. Power output varied. 1979 models had 64 kW (87 PS; 86 hp) at 3200rpm, 1988 models had 83 kW (113 PS; 111 hp) at 3200 rpm 270 N⋅m (200 lb⋅ft) at 1900 rpm. OEM diesel in Australian specification Land Rover SIII Stage 1 and coil sprung 110, 120, and Land Rover Perentie models from 1981 to 1992.
118 mm (4.6 in)
3,856 cc (235.3 cu in)
4BD1T
The 4BD1T is a turbocharged version of the 3.9-litre 4BD1. It was produced from 1985 and was fitted to Isuzu NPR trucks from 1986 and sold in the US. OEM diesel in Australian specifications Land Rover Perentie 6X6 models from 1989 to 1992. Different versions feature power ratings ranging from 90 to 100 kW (122 to 136 PS; 121 to 134 hp). Peak torque ranges from 314 to 330 N⋅m (232 to 243 lb⋅ft) at 1800 rpm. Also used in jeepneys built in Batangas.
4BD2T
The 4BD2T is an indirect injection version of the 4BD1T that was also intercooled, it replaced the 4BD1T in the US market until 1998.
100 kW (136 PS) at 3000 rpm 345 N⋅m (254 lb⋅ft) at 2000 rpm
4BE1
The 4BE1 is a 3.6L direct injection engine. It is a high revving high output diesel on its VE-Rotary Zexel injection pump. It replaced the 4BC2 in Isuzu NPR's from 1987- non turbo, while the other version uses Diesel Kiki A-type injection pump but not the same as high revving like the Rotary version. Power ratings in VE-Rotary versions (NKR300) are 74 kW (100 PS) at 3800 rpm and 242 N⋅m (178 lb⋅ft) at 2000 rpm
105 mm (4.1 in)
105 mm (4.1 in)
3,636 cc (221.9 cu in)
4BG1
The 4BG1 is a 4.3L, non turbo, direct injection industrial and marine engine. The 4BG1T is a turbocharged version of the 4BG1 and is available in marine ratings to 147 kW (200 PS).
125 mm (4.9 in)
4,329 cc (264.2 cu in)
Isuzu C engine
Isuzu's C-series engine was a mainstay for their light truck production, as well as for industrial and marine uses. The engine was introduced in 1959; by 1985 over 2 million units had been produced.[28] It was replaced in 1985 by the larger J-series engine.
Designation
Description
Bore
Stroke
Displacement
Power Rating
Valvetrain
C180
The C180 engine was used in the Isuzu Bellett, Bellett B, Express, and Wasp.[17]
The C190 is a 2.0 L engine used in the Isuzu Faster/Holden Rodeo and Isuzu Florian and also Isuzu KB. It was also fitted to the Delta Mini Cruiser for the European market. It has also been fitted to light-duty versions of the Isuzu Elf and the Isuzu Journey-S minibus. For later industrial and marine applications, this engine has been called 4AA1. There is also a gasoline-powered iteration of this engine, called the G 201 FA.
86 mm (3.4 in)
84 mm (3.3 in)
1,951 cc (119.1 cu in)
62 PS (46 kW) at 4400 rpm
8 Valve OHV
C220 C221 C223
The C220, C221, C223 is a 2.2L engine with 58 hp and 93 ft·lb of torque used in the 1981–1982 Chevrolet LUV and the 1981 through 1987 Isuzu P'up; GM also used the C220 series as an option (RPO LQ7) with the Chevrolet S10/GMC S15; low demand led to its discontinuation after the 1985 model year where subsequent S-series were gasoline powered. It was also used in the 1979–1981 Isuzu 117 Coupé XD/XDL, one of the first cars with sporting pretensions to be fitted with a diesel engine. In the 117, claimed max power (JIS) increased to 73 PS (54 kW) at 4,300 rpm.[30] It is a bored out version of the 2-litre DL201 and was first seen in the 1964 Isuzu Elf, as the C220 with 62 PS. For the 1968 new model Elf it was upgraded (now with 65 PS) and called the C221.
88 mm (3.5 in)
92 mm (3.6 in)
2,238 cc (136.6 cu in)
8 Valve OHV
C240
The C240 was often used in stationary and forklift applications. It has been used in the second and third generation Isuzu Elf 250 since late 1969 (TLD23) and also in the rare, front-wheel drive "Elf Mypack" (KUD20). For later industrial and marine applications, this engine has been called 4AB1. This family of Isuzu engines were fitted in early diesel jeepneys and CJ2A, CJ3A jeeps made by Francisco Motors and Sarao Motors in the Philippines.
86 mm (3.4 in)
102 mm (4.0 in)
2,369 cc (144.6 cu in)
38 to 68 hp (39 to 69 PS; 28 to 51 kW) 145 N⋅m (107 lb⋅ft)
8 Valve OHV
Isuzu DL engine
Designation
Description
Bore
Stroke
Displacement
Power Rating
Valvetrain
DL200
The DL200 is a long-stroke 2.0L engine with cast iron block and head. It was fitted to the Isuzu Elf. In 1961 it was replaced by the more modern DL201 engine.
79 mm (3.1 in)
107 mm (4.2 in)
1,999 cc (122.0 cu in)
52 PS (38 kW) 12 kg⋅m (120 N⋅m; 87 lb⋅ft)
8 Valve OHV
There is also a 1.6L engine with cast iron block and head. It was fitted to the Isuzu Bellel. The fuel injection was a licensed Bosch unit.[31]
79 mm (3.1 in)
82 mm (3.2 in)
1,608 cc (98.1 cu in)
52 PS (38 kW) 87 lb⋅ft (118 N⋅m)
8 Valve OHV
DL201
The DL201 is a 2.0L engine with cast iron block and head. It was fitted to the Bellel and Bellel Express as well as the Elf and Elfin trucks. Like its smaller sister, the DL201 used a license-built Bosch fuel injection unit.[31]
83 mm (3.3 in)
92 mm (3.6 in)
1,991 cc (121.5 cu in)
55 PS (40 kW) 8.9 kg⋅m (87 N⋅m; 64 lb⋅ft)
8 Valve OHV
Isuzu E engine
This family of engines started as the swirl chamber design, later modified into direct injection (4EE1), with a final improvement into a 16-valve direct common rail injection (4EE2).
Designation
Description
Bore
Stroke
Displacement
Power Rating
Valvetrain
4EC1 T4EC1
Power in the atmospheric version is 50 PS (37 kW) at 4,800 rpm and 90 Nm at 3,000 rpm. The turbocharged version (IHI) develops 67 PS (49 kW) at 4,600 rpm and 132 Nm at 2,600 rpm as fitted to the Opel Corsa A (with 0.68 bar or 9.9 psi of boost),[32] and 72 PS (53 kW) at 4,600 rpm and 143 Nm at 2,600 rpm when fitted to the larger Opel Kadett E.[33] This engine was first seen in the Isuzu Gemini FF.
76 mm (3.0 in)
82 mm (3.2 in)
1,488 cc (90.8 cu in)
8 Valve SOHC
4EE1
The turbocharged and intercooled version first seen in the 1990 Isuzu Gemini. This engine formed the basis for the common rail, direct injection4EE2 engine now produced by Opel
This engine is now produced by Opel, who calls it the Ecotec DTi/CDTi. Better known as the "Circle L engine", it is made in Poland by Isuzu Motors Polska and is available in certain Opel and Honda vehicles. It was available in versions of 100, 110 and latest 130 PS. The only visible difference between the versions is the relocation of the oil filler cap from upper right (Honda 2003-2005, engine type 4EE 2, 100PS version, 5-hole injector nozzles), to lower right, then to lower left corner of the engine (Opel engine types A17DT A17DTC A17DTE[35]).[36] The early version used 5-hole injector nozzles, the latest has 7-hole injector nozzles for better emissions and fuel economy.
79 mm (3.1 in)
86 mm (3.4 in)
1,686 cc (102.9 cu in)
74 kW (101 PS)
16 Valve DOHC
A17DTL A17DTN
After the ISUZU Polska factory went under full GM ownership, the engine marking changed to A17. All modifications of the original 4EE2 are physically only minor and can be considered tuning instead of an all-new development.[36]
All the A17 engines are almost identical to the 4EE2 base engine, the main changes are in the ECU, control software, camshaft position sensing wheel, added sensors (exhaust temperature), injector upgrades and modifications of the engine cover, resulting in shifting oil cap position.
The latest engine tuning and highest power specification, still within EURO5 emission standard. The engine block remained unchanged from 1992 until 2014.[36]
The 4FB1 is a 1.8L engine used in the 1981–1986 Chevrolet Chevette and the 1979–1987 Isuzu Gemini/I-Mark as well as the Australian Holden Gemini iteration of that car. It was also available with electronic fuel injection (Bosch) and with a turbocharger.
61 PS (45 kW) at 5,000rpm, 11.2 kg⋅m (110 N⋅m; 81 lb⋅ft) at 2,000rpm (JIS)[38]
66 PS (49 kW) at 5,000rpm, 11.2 kg⋅m (110 N⋅m; 81 lb⋅ft) at 2,000rpm (JIS) - Electronic injection[38]
73 PS (54 kW) at 5,000rpm, 16.0 kg⋅m (157 N⋅m; 116 lb⋅ft) at 2,500rpm (JIS) - Turbocharged[38]
The J-series direct injection diesel engine was introduced in 1985, in 2.5 or 2.8 liter displacements.[28] Initially installed only in lighter duty versions of the Isuzu Elf, it soon found its way into other Isuzu products. It replaced the somewhat smaller C engine; later on 3.1- and 3.0-liter versions were also introduced - still with four cylinders in line.
Designation
Description
Bore
Stroke
Displacement
Compression Ratio
Power Rating
Valvetrain
4JA1
The 4JA1 is a direct injection 8V. It was used in a variety of Isuzu TF Pickups under a variety of names including Opel Campo, and also in the Thai market Isuzu Cameo (as well as the 1991-1997 Mazda B2500 "Thunder"; 1992-1996 Ford Marathon) and in the Isuzu Panther, an Isuzu MUV car produced in Indonesia. In Thai specs, the naturally aspirated eight-valve version claimed 90 hp in 1992.
93 mm (3.7 in)
92 mm (3.6 in)
2,499 cc (152.5 cu in)
18.4:1
76 PS (56 kW) at 4200 rpm 17.5 kg⋅m (172 N⋅m) at 2000 rpm[40]
4JA1-L
The current 4JA1-L engine is turbocharged but not intercooled with an 18.5:1 compression ratio. The GM South Africa-built Isuzu KB250 (D-Max) pickup has 79 PS (58 kW) at 3800 rpm and 170 N⋅m (130 lb⋅ft) at 1800 rpm. For the Indonesian market it is rated at 80 PS (59 kW) at 3500 rpm and 191 N⋅m (141 lb⋅ft) at 1800 rpm and is installed in the Isuzu Bison, a relabelled Mitsubishi Delica (L300), the old Isuzu Pickup, the Isuzu Panther, and Isuzu Traga. For the Philippines it is rated at 85 PS (63 kW) at 3900 rpm and 185 N⋅m (136 lb⋅ft) at 2000 rpm and is used in the Euro2-rated Isuzu Crosswind, the local version of the Panther; and in India at 73.4 PS (54.0 kW) at 3900 rpm and 171 N⋅m (126 lb⋅ft) at 1800 rpm for the BS-3 (Euro3 equivalent) Chevrolet Tavera (another version of the Panther).
93 mm (3.7 in)
92 mm (3.6 in)
2,499 cc (152.5 cu in)
4JA1 CR / 4JA1 Blue Power
The 4JA1-CR / 4JA1 Blue Power is a Euro 4 variant of 4JA1-L. Unlike its predecessor which used conventional Direct Injection, it uses a High Pressure Common rail Direct Injection system and Diesel particulate filter,[41] thus achieving Euro 4 emission. Power rated at 78 PS (57 kW) at 3900 rpm and 176.5 N⋅m (18.00 kg⋅m) at 1800 rpm. It is first used in Isuzu Traviz[42] (Filipino variant of Isuzu Traga), and later on Indonesian variant of Euro 4 Isuzu Traga [43]
2,499 cc (152.5 cu in)
78 PS (57 kW) at 3900 rpm and 176.5 N⋅m (18.00 kg⋅m) at 1800 rpm
4JA1-T
The 4JA1-T is a turbocharged version of 4JA1 engine.
93 mm (3.7 in)
92 mm (3.6 in)
2,499 cc (152.5 cu in)
OHV
4JB1
The 4JB1 is a 4-cylinder naturally aspirated watercooled in-line direct injection and also a high revving high output diesel engine with its VE rotary injection pump. Horse power is 90ps industrial version. torque is 135 lb.-ft. at 2000 rpm . while the light version 4JB1 uses gear type oil pump and Bosch "A" Type mechanical injection. It has a dry weight of 230 kg (510 lb). It was used in the Isuzu Bighorn (Trooper), Mu (Rodeo), Wizard (LWB Rodeo), Rodeo Pickup and Holden Jackaroo sold in most world markets aside from North America until the early 1990s. This motor was also installed in Isuzu Elf 150 and other light trucks.
The 4JB1-T is a turbocharged version of the 4JB1. It was intercooled in some applications. Numerous versions of the Isuzu 4JB1 remain in production in China, both by Isuzu's Chinese joint ventures and innumerable other manufacturers like YANGZI. Upgrades to common-rail direct injection to bring emissions up to National 4 standards and even 16V DOHC valve-trains are also in production.
The 4JK1-TC is a common-rail direct injection intercooled turbo-diesel engine. It was used in the Isuzu D-Max Low variant or base model in Philippine market. and first generation Chevrolet Colorado produced in Thailand.
The 4JK1-TCX is an in line direct injection electronic common rail diesel engine with a variable geometry system (VGS) turbocharger and a compression ratio originally at 18.1:1. It was used in the Isuzu D-Max LT 4X4 model, produced in Thailand and Australia, as well as in the related Holden Rodeo and first-generation Chevrolet Colorado. The original version is still used in the South African version of the new D-Max, the Isuzu KB, and with the compression ratio reduced to 16.0:1 in the Thai-market D-Max X-series.
The 4JK-1E5-TC is a twin turbo version of the 4JK1 and was produced for DMAX pickups exported to Europe starting in 2012. Certified to the Euro5b emission standard with a 17.0:1 compression ratio.
The 4JG1 engine has a trochoid type oil pump, gear driven from the camshaft. The fuel system operates by plunger and nozzle and is of the high pressure solid injection type (Zexel in-line Bosch A-type). The starter motor is a 12 V unit. The firing order 1-3-4-2.
The 4JG2 is an indirect injection engine. It replaced the 4JB1-T in the Isuzu Bighorn (Trooper II) and Mu/Wizard (Rodeo) in most markets.[46] This engine was upgraded from mechanical injection to electronically controlled mechanical injection.
95.4 mm (3.76 in)
107 mm (4.2 in)
3,059 cc (186.7 cu in)
70 to 84 kW (95 to 114 PS)
4JH1-T
The 4JH1-T is a 3.0L direct injection, turbocharged and intercooled engine which replaced the 4JB1-T in the Faster/Rodeo pickups. This vehicle was sold as the Holden Rodeo in New Zealand and Australia. On some models it features an electronically controlled injection pump.
88 kW (120 PS) 245 N⋅m (181 lb⋅ft; 25.0 kg⋅m)
OHV
4JH1-TC
The 4JH1-TC is a 3.0L common rail direct injection, turbocharged and intercooled blue power engine which replaced the 4JB1-T found in Isuzu NHR and NKR in some markets. It applies to the Philippine-spec Isuzu QKR.since 2004 has undergone an upgrade to the ECU and yielded 163 hp this has emerged in some countries
95.4 mm (3.76 in)
104.9 mm (4.13 in)
2,999 cc (183.0 cu in)
77 kW (105 PS) 230 N⋅m (170 lb⋅ft; 23 kg⋅m)
4JJ1-TC
The 4JJ1-TC is a 3.0L common rail direct injection engine with turbo and intercooler which replaced the 4JH1 in the Holden Rodeo and later Chevrolet & Holden Colorado produced in Thailand. It has a 17.5:1 compression ratio. It was commonly used in the Philippines for Alterra model in 2005 to 2014. The 4JJ1-TC-iTEQ 3.0-liter diesel engine is environment-friendly, complying with Euro 3 emission standards. Equipped with a turbocharger and intercooler, plus a common rail direct injection system, the engine produces 144 hp and 294 Nm of torque.
95.4 mm (3.76 in)
104.9 mm (4.13 in)
2,999 cc (183.0 cu in)
16 Valve DOHC
4JJ1-TCX
The 4JJ1-TCX is a 3.0L common rail direct injection engine with VGS-turbo and intercooler, originally with a 17.5:1 compression ratio. Stock power in 2006 was 163 PS (120 kW) and 360 N⋅m (270 lb⋅ft) for Manual transmission/ 333 N⋅m (246 lb⋅ft) for Automatic transmission, increased to 177 PS (130 kW) and 380 N⋅m (280 lb⋅ft) in 2011 with a reduction in compression ratio to 17.3:1. With the introduction of Isuzu's "BluePower" system for improved economy in 2015, the compression ratio was further reduced to 16.5:1 both for the facelifted "Blue Power" D-Max and the Mu-X.
95.4 mm (3.76 in)
104.9 mm (4.13 in)
2,999 cc (183.0 cu in)
16 Valve DOHC
4JJ3-TCX
The 4JJ3-TCX is a newest Engine 3.0L common rail direct injection engine with VGS-turbo and intercooler, which replaced the 4JJ1-TCX in the Isuzu D-Max It uses unit injectors With the introduction of Isuzu's "BluePower" system and 4 valves per cylinder. Power 190 PS (140 kW) and 450 N⋅m (330 lb⋅ft) of Torque in 2019, the compression ratio was further reduced to 16.3:1
95.4 mm (3.76 in)
104.9 mm (4.13 in)
2,999 cc (183.0 cu in)
16 Valve DOHC
4JJ1-T
The 4JJ1-T REDTECH is a 3.0L direct injection, turbocharged watercooled engine being marketed in the North and South America as an Industrial engine. Certified to the US EPA Tier 4 and Euro 3b/4.
Dry Weight: 322 kg (709.9 lbs)
Coolant Capacity (Block): 6.0L (6.3 qt.)
Oil Capacity: 15.0L (15.9 qt.)
Dimensions - L x W x H 911mm x 754mm x 847mm (35.9in x 29.7in x 33.3in)
3.0L
(183.1 cu in)
52 KW (70 HP) @ 2000 RPM Variable
OHV
4JJ1-X
The 4JH1-X REDTECH is a 3.0L direct injection, turbocharged watercooled engine being marketed in the North and South America as a constant speed or variable speed Industrial engine. Certified to the US EPA Tier 4 and Euro 3b/4.
SAE 3 flywheel housing
Dry Weight: 322 kg (709.9 lbs)
Coolant Capacity (Block): 6.0L (6.3 qt.)
Oil Capacity: 15.0L (15.9 qt.)
Dimensions: 911mm x 754mm x 847mm (35.9in x 29.7in x 33.3in)
3.0L
(183.1 cu in)
70.8 KW (95HP) @ 1800 RPM Constant
85.7 KW (115 HP) @ 2200 RPM Variable
OHV
4JX1
The 4JX1 is a 3.0L HEUI direct-injection diesel engine, turbo, some intercooler, which replaced the 4JG2 in the Isuzu Bighorn/Trooper/Holden Jackaroo. It uses unit injectors and 4 valves per cylinder.
Dry Weight: 254 kg
Coolant Capacity: 9.3L
Oil Capacity: 9.0L
95.4
104.9
2999 cc
117 kW (157 hp) at 3900rpm
DOHC
4JZ1
4JZ1-TCH/TCS is a 3.0l direct-injection advanced diesel engine, featuring both compliance to the latest emissions standards and top-class fuel efficiency.
The RZ4E-TC is a 1.9L direct injection diesel powered, turbo intercooled engine which replaced the 4JK1-TCX found in Isuzu D-Max and Isuzu MU-X. The new engine's displacement is 1898cc, 601cc less than the 4JK1-TCX. In addition, the RZ4E-TC generates 150 hp at 3600rpm and 258 lb.-ft. (340Nm) of torque between 1800rpm to 2600rpm, giving it 16 hp and 22 lb.-ft. more than 4JK1-TCX. Isuzu has claimed that RZ4E-TC will have 19% better fuel efficiency compared to its predecessor. Bore is 80.0 mm and stroke is 94.4 mm.
The RZ4F-TC is a 2.2L direct injection diesel powered, turbo intercooled engine which replaced the RZ4E-TC found in Isuzu D-Max and Isuzu MU-X (only in Thailand by model year 2025). The new engine's displacement is 2164cc, 175cc more than the RZ4E-TC. In addition, the RZ4F-TC generates 163 hp at 3600rpm and 295 lb.-ft. (400 Nm) of torque between 1800rpm to 2600rpm, giving it 13 hp and 37 lb.-ft. more than RZ4E-TC. Isuzu has claimed that RZ4F-TC will have 10% better fuel efficiency compared to its predecessor. Bore is 83 mm and stroke is 100 mm.
CNG
CNG Engines
Isuzu developed the first Compressed Natural Gas (CNG) engine series with low-emissions truck mounted with a clean CNG engine emitting zero black smoke.
The 4HF1-CNG is a CNG engine of 4.334 L capacity (as based on direct injection diesel engine) with non-contact ignition system. Peak torque is 323 Nm, peak power is 120 PS (88 kW) at 1,500 rpm. Bore is 115 mm, stroke is 108 mm.
The 4HV1 is a CNG engine of 4.570 L capacity with non-contact ignition system. Peak torque is 353 Nm, peak power is 170 PS (125 kW) at 3200 rpm. Bore is 115 mm, stroke is 110 mm. Application used for NPR300 CNG series.
Five-cylinder
Gasoline
The Isuzu i-Series uses General Motors-built inline five-cylinder engines.
2004–2006 used the General Motors-built Vortec 3500 Engine with 220 hp (164 kW) and 225 ft·lb (305 N·m) of torque.
2007–2008 used the General Motors-built Vortec 3700 Engine with 242 hp (180 kW) and 242 ft·lb (327 N·m) of torque.
Six-cylinder
Gasoline
General Motors
From 1989 to 1990 the 2.8 L (2,838 cc) LL2 V6 with single point fuel injection, producing 122 hp (91 kW) and 204 N⋅m (150 lb⋅ft) of torque was used in the first generation Trooper.
From 1990 to 1992 the 3.1 L (3,128 cc) LG6 V6 engine with 122 hp (91 kW) and 224 N⋅m (165 lb⋅ft) was used in the Isuzu Rodeo until replaced with the Isuzu-built 3.2L 6VD1 engine.
The 2003–2008 Isuzu Ascender used the General Motors-built Atlas 4200 Engine with 275 hp (205 kW) and 275 ft·lbf (373 N·m) of torque. For the 2007 model year, the engine received an increase to 291 hp (217 kW) and 277 ft·lb (376 N·m) of torque.
The 1996–2000 Isuzu Hombre used the General Motors-built Vortec 4300 Engine with 180 hp (134 kW) and 245 ft·lb (332 N·m) of torque.
^ abOzeki, Kazuo (2007). 日本のトラック・バス 1918~1972 [Japanese Trucks and Buses 1918-1972] (in Japanese). Tokyo: Miki Press. p. 54. ISBN978-4-89522-494-9.
^ものづくりの歴史 いすゞ自動車株式会社 [Manufacturing history of Isuzu Motors]. Isuzu Recruiting Information (in Japanese). Isuzu Motors. Archived from the original on 2014-01-08. Retrieved 2014-01-08.
^ abIshikawa, Kenji (2012-05-01), "トラックメーカーアーカイブ: いすゞ自動車のすべて [Truck Manufacturer Archive: Everything Isuzu]", Camion (in Japanese), Tokyo, Japan: Geibun Mooks, p. 86, ISBN978-4-86396-183-8
^Mastrostefano, Raffaele, ed. (1985). Quattroruote: Tutte le Auto del Mondo 1985 (in Italian). Milano: Editoriale Domus S.p.A. p. 175. ISBN978-88-7212-012-5.
^Isuzu: Piazza, 117 Coupé, Bellett GT (in Japanese), Tokyo: Neko Publishing, 1991, p. 63, ISBN978-4-87366-026-4
^Büschi, Hans-Ulrich, ed. (5 March 1992). Automobil Revue 1992 (in German and French). Vol. 87. Berne, Switzerland: Hallwag AG. p. 318. ISBN978-3-444-00539-8.
^Rodeo 4WD: ยอดรถสำหรับยอดดน [Top Car for Top People] (catalog) (in Thai), บริษัท ตรีเพชรอีซูซุเซลส์ จำกัด [Tri Petch Isuzu Sales Ltd.], April 1992, pp. 3–4
^Büschi, Hans-Ulrich, ed. (10 March 1994). Automobil Revue 1994 (in German and French). Vol. 89. Berne, Switzerland: Hallwag AG. p. 316. ISBN978-3-444-00584-8.
