Parts for your 2000 Mitsubishi Pajero-Exhaust gasket

2000 Mitsubishi Pajero exhaust gasket: what it does and when to replace it

Based on the Mitsubishi Pajero/Montero Factory Service Manual (1997–2004 coverage) and the Mitsubishi ASA electronic parts catalogue, the 2000 Pajero does use exhaust gaskets. They’re specified at the exhaust manifold-to-cylinder head and at various pipe joints (including donut/ring and flat flange styles) across both petrol V6 and diesel (2.8 and 3.2 Di‑D) variants. Independent workshop manuals for this model range echo the same fitment. So yes—exhaust gaskets are relevant and fitted to the 2000 Mitsubishi Pajero.

On a 2000 Pajero, the exhaust gasket’s job is simple but crucial: it seals high‑temperature gases so they leave through the exhaust, not into the engine bay or cabin. At the head, a multi‑layer steel or composite manifold gasket copes with big heat cycles and vibration. Further back, flat gaskets or a graphite‑lined donut/ring sit between flanges or a ball‑and‑socket joint to keep the system tight while allowing a bit of movement off‑road.

When should it be replaced? There’s no set kilometre interval in the factory schedules. Instead, it’s a “replace on condition” item and a “renew on disturbance” rule—any time a joint is split for other work, fit a new gasket. That’s straight out of normal workshop practice and backed by Mitsubishi’s service procedures for exhaust disassembly/reassembly.

What to watch for day to day:

• A sharp ticking on cold start that softens when warm (manifold leak tell‑tale)
• Black soot marks at a flange or donut joint
• Exhaust smell in the cabin or around the engine bay
• On Di‑D diesels, sluggish turbo spool if there’s a pre‑turbo leak

Replacement tips a good mechanic follows on a Pajero:

• Use the correct gasket type for the joint (MLS manifold, correct-size donut ring, or specified flat gasket)
• Clean and flatten mating faces