Parts for your 1996 Mitsubishi Pajero-Drive belt tensioner

1996 Mitsubishi Pajero drive-belt tensioner — is it actually used?

For the 1996 Mitsubishi Pajero (NJ/NK/NL series), the accessory drive does not use a modern, spring‑loaded serpentine drive‑belt tensioner assembly. Instead, these models run separate V‑belts with tension set manually via the alternator or power‑steering bracket and a fixed A/C idler pulley with an adjusting bolt. This setup is described in period factory manuals and parts catalogues for the common 1996 engines (4M40 2.8 TD and 6G72 3.0 V6), which show belt adjustment by moving the accessory or turning an adjuster, then tightening a lock nut—no self‑tensioning unit is shown.

Relevant technical sources that outline this arrangement include: Mitsubishi Pajero/Montero Workshop Manual (early–late 1990s editions, drive belt sections for 4M40 and 6G72), the Mitsubishi ASA electronic parts catalogue for 1996 Pajero (drive belt and idler groupings), and the Haynes Mitsubishi Pajero/Montero Repair Manual covering up to the late 1990s, which specifies tensioning by alternator/power‑steering movement and the A/C idler adjuster. These documents consistently depict manually adjusted belts rather than an automatic tensioner unit.

Why no drive‑belt tensioner? The Pajero’s accessory layout of the era uses multiple belts, which makes manual tensioning straightforward and cost‑effective. Each belt is tightened independently: alternator and power‑steering belts via their mounting/adjuster hardware, and the A/C belt via a separate idler with a long adjuster screw. That means a replacement “drive‑belt tensioner” as a single spring‑loaded assembly isn’t relevant to this model year. Note this is completely separate from the timing belt system—some engines have a hydraulic/automatic tensioner for the timing belt, but that’s inside the timing covers and unrelated to the accessory belts under the bonnet.

Servicing advice for owners and workshops is simple: inspect belt condition and tension at regular services. Look for cracking, glazing, fraying, and listen for squeal on cold starts or when accessories kick in. If noisy, check alignment and spin the idler pulley by hand—roughness or wobble means the bearing’s had it. To adjust, loosen the relevant lock nut, turn the adjuster to set correct belt deflection as per the manual’s spec, then re‑tighten. After fitting new belts, re‑check tension after the first few hundred kilometres as fresh belts bed in. Keeping belts correctly set helps alternator charging, steering assist, and A/C performance, and avoids premature bearing wear.

Technical sources referenced: Mitsubishi Pajero/Montero Workshop Manual (1990s editions, drive belt/engine sections for 4M40 and 6G72), Mitsubishi ASA electronic parts catalogue (1996 Pajero, drive belts and idlers), Haynes Mitsubishi Pajero/Montero Repair Manual (coverage to late 1990s, belt adjustment procedures).

Does a 1996 Mitsubishi Pajero have a drive‑belt tensioner?

No spring‑loaded serpentine tensioner is fitted on 1996 models. They use separate belts with tension set manually via the alternator, power‑steering bracket, and an A/C idler adjuster.

What’s the pulley with the long adjuster bolt near the A/C?

That’s a manually adjusted A/C idler pulley. Some parts sites label it a “tensioner”, but it isn’t self‑tensioning—you set it with a spanner and lock it off.

How often should the Pajero’s accessory belts be checked?

Have a look every service. Adjust if there’s squeal or excessive deflection, and replace belts showing cracks, glazing, or fraying. After new belts are fitted, re‑check tension after a few hundred kilometres.