Parts for your 1991 Mitsubishi Pajero-Drive belt

1991 Mitsubishi Pajero Drive-Belt: What It Does and When To Replace It

Based on technical sources such as the Mitsubishi workshop manual for 1991 Pajero models, plus Gates and Dayco belt catalogues for the same year, a drive-belt (accessory belt) is absolutely used on the 1991 Mitsubishi Pajero. It’s not a beltless setup. Whether fitted with the 2.5L turbo-diesel (4D56) or the 3.0L V6 petrol (6G72), these vehicles run multiple accessory belts that drive vital ancillaries under the bonnet.

The drive-belt’s job is straightforward but crucial: it spins the alternator to keep the battery charged, runs the water pump on many variants to keep engine temps in check, powers the power steering pump for lighter steering, and turns the air-con compressor. On most 1991 Pajeros it’s a set of V-belts rather than a single long serpentine belt. Don’t confuse this with the timing belt that controls the camshaft—different belt, different service routine.

For everyday servicing, the belt system deserves a quick once-over at each oil change. Look for cracking, glazing, fraying, missing ribs, or rubber dust. A chirp or squeal on cold start, heavy steering, a glowing battery light, or a tendency to run hot can all point to a loose or worn belt. Alignment matters too—if a pulley is out of line, new belts won’t last. Tension should be set to workshop spec, too tight can hammer bearings, too loose will slip and glaze. After fitting, re-check tension once the belt has bedded in.

A sensible replacement window for older V-belts is around 60,000–80,000 kilometres or about every 4–5 years, sooner if there are any signs of wear or contamination by oil or coolant. Many owners choose to replace all accessory belts together, and it’s smart to do them when the timing belt is being changed on timing-belt engines. Touring the outback or heading remote? Toss a spare set in the back—cheap insurance.

Quick tips for belt care on a 1991 Pajero:

• Inspect at every service, replace at the first sign of cracking or glazing.
• Set correct tension and re-check after initial run-in.
• Keep belts and pulleys clean, fix leaks that contaminate rubber.
• Replace belts as a matched set if more than one runs the same accessory.

These recommendations reflect typical 1991 Pajero setups as documented in Mitsubishi factory service literature and supported by Australian and New Zealand aftermarket belt catalogues.

FAQs

Does a 1991 Mitsubishi Pajero use V-belts or a serpentine belt?
Most 1991 Pajeros came with multiple V-belts for the alternator, power steering and air-con. Depending on engine and market, you might see a multi-rib belt on some accessories, but a single long serpentine belt across all ancillaries wasn’t the common layout for this year. A quick look under the bonnet or a check of the workshop manual will confirm the routing for the specific engine.

How often should the drive-belts be replaced?
Inspect at every service and plan to replace around 60,000–80,000 km or 4–5 years. Replace sooner if there’s noise, slipping, cracks, glazing, or contamination. If the timing belt is being done, it’s a convenient time to fit fresh accessory belts as well.

What are the signs the Pajero’s drive-belt needs attention?
Squealing or chirping on start-up, dim lights or a battery warning lamp, heavier steering effort, rising engine temperature, or visible wear such as fraying and cracking are all red flags. Any belt that leaves black dust around the pulleys is likely slipping and due for replacement or re-tensioning.