Isuzu 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 4 H Also available as LP/CNG engine (4HV1). 6 6 U 6 W

Two-cylinder

Diesel Designation Description Bore Stroke Displacement Power Rating Production Run Dry Weight 2AA1 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.2AA1–3AA1, 2AB1–3AB1 Workshop Manual, p. 4-2-1 19.5 PS (14.3 kW) @2800rpm 1972–1989 2AB1 There is also a three-cylinder version called the 3AB1. 25.5 PS (18.8 kW) @2800rpm 1970–1991 2AA1–3AA1, 2AB1–3AB1 Workshop Manual, p. 1-2 UM-2AB1 A marinised version of the 2AB1 1971–1991 2CA1 A marinised version is produced by Klassen Engines - the Suzie 14 1983 2KC1 1988–1994 UM-2KC1 A marinised version of the 2KC1. Also marinised briefly by Beta Marine Limited.

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. @2800rpm 1972–90 .2AA1–3AA1, 2AB1–3AB1 Workshop Manual, p. 1-3 3AB1 This engine shares the bore of the 2AA1/3AA1/C240, but with a much longer stroke. There is also a two-cylinder version called the 2AB1. @2800rpm 1971- .2AA1–3AA1, 2AB1–3AB1 Workshop Manual, p. 1-4 3AD1 1977–90 3AD1-T 1978–79

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 (86 kW) and 140 ft·lb (190 N·m) of torque. 2004–2006 Isuzu i-Series used a General Motors-built Vortec 2800 Engine with 175 hp (130 kW) and 185 ft·lb (251 N·m) of torque. 2007–2008 Isuzu i-Series use a General Motors-built Vortec 2900 Engine with 185 hp (138 kW) and 195 ft·lb (263 N·m) 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 (KA41/51). 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 (albeit earlier) development was the twin-cam G161W engine (still with eight valves) 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 (Japan only) 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 (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, 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 (TLG42). 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 (down to 110 hp SAE in the US).Tutte le Auto del Mondo 1990, pp. 389-390 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 4XE1-WT The 1.6L 4XE1-WT 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.Automobil Revue 1992, p. 319 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 (JIS). The export version claimed . A turbo version (4ZC1-T) 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 (carburetted) 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 (NKR300) 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.