The 1991 Mitsubishi Pajero is a rugged, body-on-frame midsize SUV built for serious off-road use while still being practical as an everyday family 4x4. Sold in many markets as a versatile long-wheelbase or short-wheelbase utility, it sits between compact soft-roaders and full-size trucks thanks to its strong drivetrain and go-anywhere hardware. For 1991, it’s part of the first-generation Pajero/Montero/Shogun family, known for simple mechanicals, strong low-range capability, and durable axles. It’s ideal for buyers who want an older-school 4WD that can be maintained and upgraded, and who don’t mind classic SUV ride and noise compared to modern crossovers.

- Proven 4WD hardware: Many 1991 Pajeros were equipped with a dual-range transfer case with 2H/4H/4L modes, making them well-suited for trails, sand, towing, and snow driving. - Engine options by market: Common engines include the 3.0L V6 gasoline (6G72) in many regions, plus popular 2.5L turbo diesel variants (often listed as 4D56 in numerous markets). Some trims also offered other regional four-cylinder or diesel configurations depending on country and emissions rules. - Truck-style strength: A body-on-frame chassis, solid rear axle on many configurations, and generous ground clearance contribute to its reputation as a tough, modification-friendly SUV. - Practical interior layout: Tall seating position, wide-opening doors, and a cargo area that’s easy to load make it useful for camping, overlanding, and work duty. - Classic utility features: Many examples include manual locking hubs (market/trim dependent), robust cooling capacity for low-speed off-road driving, and simple electrical systems compared to newer SUVs.

Shoppers searching “1991 Mitsubishi Pajero reliability” will find a generally durable platform, but age and deferred maintenance are the biggest reliability factors today. Here are common 1991 Mitsubishi Pajero problems and issues reported by long-term owners and technicians: - Cooling system wear and overheating: Radiators, fan clutches, thermostat housings, and old hoses can lead to overheating, especially in slow off-road conditions or hot climates. Neglect can show up around 120,000–200,000 miles, or earlier if coolant service was ignored. - Automatic transmission shift flare or harsh shifting (where equipped): Older AT units may develop delayed engagement, slipping, or shift flare, often tied to old fluid, tired solenoids, or internal wear. Issues commonly become noticeable past 150,000 miles, though towing with old fluid can accelerate problems. - Suspension and steering wear: Worn ball joints, tie rods, control arm bushings, and steering idler components can cause wandering, vibrations, or uneven tire wear. Many owners report needing front-end refresh work somewhere around 100,000–180,000 miles depending on use and lift kits. - Oil leaks and aging seals: Valve cover gaskets, cam/crank seals, and power steering seepage are common on higher-mileage trucks. Leaks are usually manageable but can become messy and lead to low-fluid issues if ignored.