Isuzu Bighorn
| Isuzu Bighorn | |
|---|---|
Second generation Isuzu Trooper (United States)
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| Overview | |
| Manufacturer | Isuzu |
| Production | 1981–2002 |
| Assembly | Fujisawa Plant, Fujisawa, Kanagawa, Japan |
| Body and chassis | |
| Class | Mid-size SUV |
| Layout | Front-engine, rear-wheel-drive / four-wheel-drive |
| Chronology | |
| Successor |
Isuzu Ascender Isuzu Axiom Chevrolet Captiva |
| First generation | |
|---|---|
 |
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| Overview | |
| Also called |
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| Production | 1981–1991 |
| Body and chassis | |
| Body style | 3-door SUV 5-door SUV |
| Powertrain | |
| Engine | 2.0 L G200 I4 (UBS13) 2.3 L 4ZD1 I4 (UBS16) 2.6 L 4ZE1 I4 (UBS17) 2.2 L C223 diesel/turbodiesel I4 (UBS52) 2.8 L 4JB1 diesel I4 2.8 L 4JB1-T turbodiesel I4 2.0 L G200 I4 (UBS13) 2.8 L LH7 V6 2.8 L LL2 V6 |
| Transmission | 4-speed Isuzu MSG manual 5-speed Isuzu MSG manual 5-speed Isuzu MUA5C manual 4-speed Aisin Warner automatic |
| Dimensions | |
| Wheelbase | 3-door: 90.6 in (2,301 mm) 5-door: 104.3 in (2,649 mm) |
| Length | 3-door: 162.3 in (4,122 mm) 5-door: 176.0 in (4,470 mm) |
| Width | 65.0 in (1,651 mm) |
| Height | 3-door: 72.6 in (1,844 mm) 5-door: 71.7 in (1,821 mm) |
| Second generation | |
|---|---|
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| Overview | |
| Also called | Acura SLX Chevrolet Trooper Isuzu Bighorn Holden Jackaroo Holden Monterey Honda Horizon HSV Jackaroo Opel Monterey Subaru Bighorn Vauxhall Monterey |
| Production | 1991–2002 |
| Assembly |
Biñan, Philippines Pekan, Malaysia |
| Body and chassis | |
| Body style | 3-door SUV 5-door SUV |
| Powertrain | |
| Engine | 3.2 L 6VD1 SOHC V6 3.2 L 6VD1 DOHC V6 3.5 L 6VE1 DOHC V6 3.0 L 4JX1 T D I4 (UBS73) 3.1 L 4JG2 TD I4 (UBS69) |
| Transmission | 4-speed automatic 5-speed manual |
| Dimensions | |
| Wheelbase | 3-door: 91.7 in (2,329 mm) 5-door: 108.7 in (2,761 mm) |
| Length | 3-door: 166.7 in (4,234 mm) 5-door: 183.5 in (4,661 mm) |
| Width | 1992–94: 68.7 in (1,745 mm) 1995–97: 72.2 in (1,834 mm) |
| Height | 1992–94: 72.8 in (1,849 mm) 1995–97: 72.2 in (1,834 mm) |
The Isuzu Bighorn is a mid-size SUV that was produced by the Japanese automaker Isuzu between 1981 and 2002 and exported internationally as the Isuzu Trooper, Isuzu Trooper II, Caribe 442, Acura SLX, Chevrolet Trooper, Subaru Bighorn, SsangYong Korando Family, Honda Horizon, Opel/Vauxhall Monterey, Holden Jackaroo/Monterey and HSV Jackaroo.
In total, there were two generations of this vehicle: the first, produced between 1981 and 1991; and the second (UBS) produced between 1991 and 2002, with a substantial refresh in 1998. Production ended in 2002.
The Bighorn began as a rather basic and somewhat underpowered on- and off-road vehicle, offered only with four-cylinder motor, four-speed manual transmission, and part-time four-wheel drive. The first generation evolved to add both amenities and luxuries, including optional air-conditioning, power windows, and a more powerful V6 engine. The second generation was even more refined and available in two-wheel drive as well as four-wheel drive.
The first-generation Bighorn was available as a three- or five-door wagon with independent front suspension. In the Japanese market, the car was originally introduced as the "Isuzu Rodeo Bighorn", but the "Rodeo" part of the name was soon dropped. Early engines included a 2.0-liter gasoline and a 73 PS (54 kW) 2.2-liter diesel, lightly powered even by early 1980s standards for the vehicle's 3,700 lb (1,680 kg) empty weight. The four-wheel-drive system was engaged by operating a three-position shifter adjacent to the transmission shifter. Both Aisin manual-locking and Isuzu's own auto-locking hubs were employed.
In 1986, Isuzu introduced the 4ZD1 four-cylinder 112 PS (82 kW; 110 hp) 2.3-liter petrol engine. Apart from higher power, changes to the previous engine included a Kevlar timing belt replacing the previous chain, and a larger two-barrel carburetor. This engine eventually proved somewhat problematic with a high incidence of burned valves due to poor coolant flow design of the overhead cam/valve head with mechanical lifters. A later head casting improvement by an Italian firm corrected this problem through improved coolant flow. Also available only for 1986 in the US was the 87 PS (64 kW) 2.2-liter C223T turbocharged diesel engine, using a Garrett turbocharger. It was not a popular option because of the low power generated, and furthermore is notorious for a weak bottom end, the connecting rods not originally designed for the increased thermal and mechanical stress of forced induction. Because of those problems, Isuzu changed the 4ZE1 for 1988 and used the standard 2.8-liter GM V6 for 1989 until their own new V6 engines could be manufactured.
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