List of Isuzu engines

has used both its own engines and General Motors-built engines. It has also developed engines for General Motors, Renault, Saab, Honda, Nissan, Opel and Mazda.

Overview

Isuzu engines carry a two-character prefix which designate the number of cylinders and engine family. Engines available currently include the following:

Cyl.	Family	Displacement	Power Rating	Notes
3	C
4	L
4	J
4	B
6	B
4	H			Also available as LP/CNG engine.
6	H			Also available as LP/CNG engine.
6	U
6	W

Three-cylinder

Diesel

L Engine

Designation	Description	Bore	Stroke	Displacement	Power Rating	Production Run	Dry Weight
3LA1
3LB1							OHV
3LD1							OHV
3LD1							OHV

Four-cylinder

Petrol

GH engine

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 and a stroke of for a displacement of. Power is. In 1955 this was updated to the GH12, a square design with a 76.2 mm bore and stroke for a displacement of. This was upgraded in 1956 for more power, rather than the original's, and was renamed GH100. In 1958, power increased yet again, to.

GL engine

For 1959 Isuzu developed their own square design called the GL150, Isuzu's first own petrol engine. Still showing unmistakable Hillman origins it displaces and has. The GL150 was fitted to the 1959 Isuzu Elf and the 1961 Bellel.

General Motors

The Isuzu Hombre used a General Motors-built Vortec 2200 Engine with 118 hp and 140 ft·lb of torque.
2004–2006 Isuzu i-Series used a General Motors-built Vortec 2800 Engine with 175 hp and 185 ft·lb of torque.
2007–2008 Isuzu i-Series use a General Motors-built Vortec 2900 Engine with 185 hp and 195 ft·lb of torque.

Isuzu G engine

Designation	Description	Bore	Stroke	Displacement	Power Rating	Valvetrain
G130	This engine was used in the Isuzu Bellett, Bellett B, and Bellett Express.					OHV
G140	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.					OHV
G150	The 1.5 L G150 engine was used in the Isuzu Bellett and the Isuzu Elf.					OHV
G160/G161	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. The G160 has a three main bearing crankshaft, 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 development was the twin-cam G161W engine first presented in the Isuzu Bellett GT-R in March 1968.					OHV
G180	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 G180W DOHC eight valve engine which was used in the Gemini ZZ and the Isuzu 117 Coupé.				@4800rpm @3000rpm	SOHC
G200	The 2.0 L G200Z engine was used in the 1981–1985 Chevrolet LUV and also Isuzu Trooper. 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 and 123 lb·ft of torque. It was also installed in 1982-1985 GMC S-15 pickup trucks, 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.				@4600rpm @3000rpm	SOHC
G201	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.				at 4800 rpm at 3000 rpm	SOHC

Isuzu X engine

Designation	Description	Bore	Stroke	Displacement	Power Rating	Valvetrain
4XB1	The 1.3 L 4XB1 engine was available in export market Isuzu Gemini JT140s.				DIN at 5400 rpm	SOHC
4XC1	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 in US-spec versions via in the non-catalyzed European models, to a turbocharged version with . Later versions received a twelve-valve head, as installed in the JT150 Gemini it offered at 6,000 rpm.					SOHC
4XE1-V	The 1.6L 4XE1-V engine was used in the base model Geo Storm and the base model Isuzu Stylus S.					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.				in Japanese spec.	16 Valve DOHC
4XE1WT	The 1.6L 4XE1WT turbocharged 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.				in Japanese spec.	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.					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.					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.					8 Valve SOHC
4ZC1	The 2.0L 4ZC1 engine was used in the Isuzu Fargo van from 1986 onward, where it produced. This was also used in the Isuzu Aska, where it produced . The export version claimed. A turbo version could be found in the Isuzu Piazza & Isuzu Aska.					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, while export market Troopers produced and the MY 1988/89 US market Isuzu Piazza received an MPFi version with at 5000 rpm.					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.					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. 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.				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.				at 3300-3400 rpm at 2000 rpm
4BC1	The 4BC1 is a 3.3L diesel sold in Isuzu ELF light trucks from 1980 to 1982.				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.				at 3500 rpm 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 at 3200rpm, 1988 models had at 3200 rpm 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.
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. Peak torque ranges from 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.				at 3000 rpm 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 are at 3800 rpm and at 2000 rpm
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.

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. 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.				.	8 Valve OHV
C190	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.				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 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 increased to at 4,300 rpm. 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 and called the C221.					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 and also in the rare, front-wheel drive "Elf Mypack". 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.					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.					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.					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.					8 Valve OHV

Isuzu E engine

This family of engines started as the swirl chamber design, later modified into direct injection, with a final improvement into a 16-valve direct common rail injection.

Designation	Description	Bore	Stroke	Displacement	Power Rating	Valvetrain
4EC1 T4EC1	Power in the atmospheric version is at 4,800 rpm and 90 Nm at 3,000 rpm. The turbocharged version develops at 4,600 rpm and 132 Nm at 2,600 rpm as fitted to the Opel Corsa A, and at 4,600 rpm and 143 Nm at 2,600 rpm when fitted to the larger Opel Kadett E. This engine was first seen in the Isuzu Gemini FF.					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 injection 4EE2 engine now produced by Opel				@4,500rpm @2,500rpm	8 Valve SOHC
4EE2	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, to lower right, then to lower left corner of the engine. The early version used 5-hole injector nozzles, the latest has 7-hole injector nozzles for better emissions and fuel economy.					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.					16 Valve DOHC
A17DTJ A17DTC A17DTE	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, injector upgrades and modifications of the engine cover, resulting in shifting oil cap position.					16 Valve DOHC
A17DTR						16 Valve DOHC
A17DTS	The latest engine tuning and highest power specification, still within EURO5 emission standard. The engine block remained unchanged from 1992 until 2014.					16 Valve DOHC

Isuzu F engine

Designation	Description	Bore	Stroke	Displacement	Power Rating	Valvetrain
4FB1	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 and with a turbocharger. 4 cylinder, inline, water cooled, SOHC Compression ratio: 21.5:1				at 4400rpm at 2000rpm	8 Valve SOHC

Isuzu H engine

All engines are SOHC with direct injection and are normally aspirated or turbocharged or turbocharged and intercooled
Three bores:,,
Four strokes:,,,
4HL1 versions have common rail high-pressure fuel injection system with electronic control system

Designation	Bore	Stroke	Displacement	Power Rating	Valves	Notes	Vehicle
4HE1-T	110	125		at 2,900 rpm at 1,800 rpm	8	T	1998 NQR500
4HE1-XN	110	125		at 2,700 rpm at 2,000-2,400 rpm	8	T	2003 NPR400
4HF1	112	110		at 3,200 rpm at 1,800 rpm	8	N/A	1998 NPR200
4HG1-T	115	110	4.57L	at 3,000 rpm at 1,800 rpm	8	T	2000 NPR350A
4HJ1	115	120		at 3,100 rpm at 1,600 rpm	8	N/A	1998-2004 Elf
4HK1-TCN	115	125		at 2,600 rpm at 1,500-2,600 rpm	16	T	2006 NPR400
4HK1-TCC	115	125		@2600rpm @1500-2000rpm	16	T	2008 NQR500
4HK1-TCS	115	125		@2600rpm @1600-2600rpm	16	T	2005 NQR500
4HL1	115	115		@3000rpm @1500rpm	16	CR-ECS; N/A
4HL1-N	115	115		@3000rpm @1500rpm	16	CR-ECS; N/A
4HL1-TC	115	115		@2700rpm @1500rpm	16	CR-ECS; T/I
4HL1-TCS	115	115		@2700rpm @1500rpm	16	CR-ECS; T/I

Isuzu J engine

The J-series direct injection diesel engine was introduced in 1985, in 2.5 or 2.8 liter displacements. 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 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.				18.4:1	at 4200 rpm at 2000 rpm
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 pickup has at 3800 rpm and at 1800 rpm. For the Indonesian market it is rated at at 3500 rpm and at 1800 rpm and is installed in the Isuzu Bison, a relabelled Mitsubishi Delica, the old Isuzu Pickup, the Isuzu Panther, and Isuzu Traga. For the Philippines it is rated at at 3900 rpm and at 2000 rpm and is used in the Euro2-rated Isuzu Crosswind, the local version of the Panther; and in India at at 3900 rpm and at 1800 rpm for the BS-3 Chevrolet Tavera.
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, thus achieving Euro 4 emission. Power rated at at 3900 rpm and at 1800 rpm. It is first used in Isuzu Traviz, and later on Indonesian variant of Euro 4 Isuzu Traga					at 3900 rpm and at 1800 rpm
4JA1-T	The 4JA1-T is a turbocharged version of 4JA1 engine.						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. It was used in the Isuzu Bighorn, Mu, Wizard, 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.						OHV
4JB1-T	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.
4JC1		88 mm	92 mm	2,238 cc			OHV
4JD1		84 mm	92 mm	2,039 cc			OHV
4JE1		84mm	84 mm	1,862 cc			OHV
4JF1		75.3 mm	84 mm	1,496 cc			OHV
4JK1-TC	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.					at 1800-2200 rpm	16 Valve DOHC
4JK1-TCX	The 4JK1-TCX is an in line direct injection electronic common rail diesel engine with a variable geometry system 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.					at 1800-2800 rpm	16 Valve DOHC
4JK-1E5-TC	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.					at 3600 rpm @1400-2000rpm
4JG1	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. The starter motor is a 12 V unit. The firing order 1-3-4-2.				18.6	at 2500 rpm	OHV
4JG1T	The 4JG1T engine is a turbocharged version of the 4JG1. Notable differences include a reduced compression ratio of 18.1:1				18.1	at 2500 rpm	OHV
4JG2	The 4JG2 is an indirect injection engine. It replaced the 4JB1-T in the Isuzu Bighorn and Mu/Wizard in most markets. This engine was upgraded from mechanical injection to electronically controlled mechanical injection.
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.						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
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.						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 and for Manual transmission/ for Automatic transmission, increased to and 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.						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 and of Torque in 2019, the compression ratio was further reduced to 16.3:1						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 Coolant Capacity : 6.0L Oil Capacity: 15.0L Dimensions - L x W x H 911mm x 754mm x 847mm			3.0L		52 KW @ 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 Coolant Capacity : 6.0L Oil Capacity: 15.0L Dimensions: 911mm x 754mm x 847mm			3.0L		70.8 KW @ 1800 RPM Constant 85.7 KW @ 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 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. Diesel, 4-cycle, water-cooled inline DOHC	95.4	104.9	2999 cc	17.3	4JZ1-TCS 110kW @2800rpm 375Nm /1280-2800rpm 4JZ1-TCH 129kW @2960rpm 430Nm /1450-2860rpm	16 valve DOHC

Isuzu RZ Engine

The ' 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. 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 ' 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. 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. 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 with non-contact ignition system. Peak torque is 323 Nm, peak power is 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 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 and 225 ft·lb of torque.
2007–2008 used the General Motors-built Vortec 3700 Engine with 242 hp and 242 ft·lb of torque.

Six-cylinder

Gasoline

General Motors

From 1989 to 1990 the GM 60-Degree [V6 engine#LL2|LL2] V6 with single point fuel injection, producing and of torque was used in the first generation Trooper.
From 1990 to 1992 the LG6 V6 engine with and 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 and 275 ft·lbf of torque. For the 2007 model year, the engine received an increase to 291 hp and 277 ft·lb of torque.
The 1996–2000 Isuzu Hombre used the General Motors-built Vortec 4300 Engine with 180 hp and 245 ft·lb of torque.

Isuzu V engine

The Isuzu V engine is a family of all-aluminum 75° V6 gasoline engines ranging from 3.2 to 3.5 liters.

Eight-cylinder

Gasoline

The 2002–2007 Isuzu Ascender use the General Motors-built Vortec 5300 Engine with 285 hp and 325 ft·lb of torque.
Isuzu Commercial trucks use the General Motors-built Vortec 6000 Engine with 300 hp and 360 ft·lb of torque.
2023–2025 Commercial trucks use the General Motors-built 6.6 L L8T with 350 hp and 425 ft·lb of torque.

Diesel

The 8PA1 is a V8 diesel truck engine. It has at 2800 rpm and at 1600 rpm.
The 8GF1 is a V8 diesel truck engine. It has at 3200 rpm and at 1600 rpm.
Isuzu had the design responsibility of the base engine, while GM Truck Group was responsible for designing the installation and packaging within the vehicle. Engine validation relied on Isuzu's proven validation process, in addition to GM Powertrain's expertise in engine validation. Engine calibration work in the vehicle was undertaken by a joint team of Isuzu, GM Powertrain and GM Truck Group personnel, which reflects how the engine was born as a complete collaboration of the three organizations.