Parts for your 1986 Mitsubishi Pajero-Exhaust gasket

1986 Mitsubishi Pajero exhaust gasket — what it does and when to replace it

According to the Mitsubishi Pajero/Montero Factory Service Manual (1982–1991, Engine and Exhaust sections), the Mitsubishi ASA electronic parts catalogue, and common aftermarket workshop guides such as the Haynes 1983–1997 manual, the 1986 Pajero does use exhaust gaskets. These include the cylinder head–to–exhaust manifold gasket, a manifold/downpipe “donut” or flange gasket on petrol models, and turbo outlet gaskets on turbo‑diesel variants. So yes—exhaust gaskets are relevant to this model.

On a 1986 Mitsubishi Pajero, the exhaust gasket’s job is to seal hot gases as they leave the engine, preventing leaks, fumes in the cabin, and false oxygen readings (where fitted). A good seal keeps the engine quiet, helps maintain torque at low revs, and protects nearby components from heat and soot. Over time, heat cycling, vibration and corrosion can flatten or crack these gaskets, especially around the manifold and front pipe.

As part of routine servicing or any exhaust work on a 1986 Pajero, it’s smart to inspect and, if needed, replace the gaskets. Tell‑tale signs include a sharp ticking on cold start that softens when warm, a whiff of exhaust under the bonnet, or black carbon marks around flanges. On turbo‑diesel models, a leak before the turbo can hurt spool and driveability