Parts for your 1992 Mitsubishi Pajero-Exhaust gasket

1992 Mitsubishi Pajero exhaust gasket — what it does and when to replace it

Yes, an exhaust gasket is used on the 1992 Mitsubishi Pajero. Technical references including the Mitsubishi Pajero/Montero Factory Service Manual for the Gen II models (1991–1996), the Mitsubishi ASA electronic parts catalogue for V2/V4/V6 chassis, and mainstream workshop manuals for the era list exhaust-manifold-to-cylinder-head gaskets and front pipe/downpipe gaskets for both petrol (e.g., 6G72 V6) and diesel variants (e.g., 4D56 2.5T and 4M40 2.8T). Turbo-diesel models also use sealing rings/gaskets at the turbo-to-manifold and turbo-to-downpipe joints.

On a ’92 Pajero, the exhaust gasket’s job is simple but critical: seal hot exhaust gases as they leave the engine, keeping things quiet, tidy, and efficient. Whether it’s the multilayer steel gasket at the manifold or the crush “donut” at the front pipe, each seal prevents leaks that can cause ticking noises on cold start, fumes in the cabin, and false oxygen-sensor readings on petrol models. On turbo-diesels, poor sealing can slow spool and raise under-bonnet temps.

As part of routine servicing, it’s smart to inspect for soot marks around the manifold and joints, listen for a sharp tick on cold start, and note any exhaust odour under load or at idle. There’s no fixed replacement interval, gaskets are replaced when leaking, during manifold or turbo work, or whenever the system is apart.

• Common signs it’s time: ticking that quietens when warm, a whiff of exhaust under the bonnet, visible soot at a flange, or a chuffing note under acceleration.
• Best practice on replacement: clean mating faces to bare metal, check manifold flatness, and use new studs and self-locking nuts where specified. Avoid sealants unless the manual calls for them, most Pajero gaskets are designed to seal dry.
• For turbo-diesels: replace the turbo outlet crush ring and any heat shields you disturb, and verify the support brackets and hangers are tension-free so the new gasket doesn’t get stressed.

A properly sealed exhaust helps fuel economy, keeps the cabin quiet, and protects nearby hoses and wiring from heat. Done right with quality gaskets matched to the exact engine code, it’s a straightforward job that pays off in reliability—whether the Pajero spends its life touring the outback or tackling a wet Kiwi weekend track.

Popular questions

Do all 1992 Pajero engines use the same exhaust gasket?
Not quite. The 6G72 V6 petrol, 4D56 2.5 turbo-diesel, and 4M40 2.8 turbo-diesel use different manifold patterns and gasket materials. Turbo-diesels also add metal sealing rings at the turbo joints. Always match by VIN/engine code and consult the Mitsubishi parts catalogue.

How often should the exhaust gasket be replaced?
There’s no set kilometre interval. Replace it when it leaks, whenever the manifold, turbo or front pipe is removed, or if there’s ticking, soot, or fumes. Many owners inspect the joints at each service and plan gasket replacement proactively during other exhaust or head work.

Can a leaking exhaust gasket cause damage?
Left alone, a leak can overheat nearby components, skew oxygen-sensor readings on petrol engines, and on turbo-diesels reduce boost response. It can also let fumes into the cabin. Sorting it early keeps the engine happy and the vehicle safe.