Parts for your 1989 Mitsubishi Pajero-Exhaust mount

1989 Mitsubishi Pajero exhaust mount

Based on Mitsubishi’s factory literature and parts catalogues for the first‑generation Pajero (L040 series, circa 1982–1991), exhaust mounts—also called exhaust hangers or insulators—are absolutely used on the 1989 Mitsubishi Pajero. The Mitsubishi ASA electronic parts catalogue for Gen 1 Pajero lists multiple “insulator, exhaust mounting” positions along the muffler and tailpipe, and workshop manuals such as Gregory’s and Haynes note that the Pajero’s exhaust is supported by rubber mountings to isolate vibration. So yes, an exhaust mount is relevant and fitted to this vehicle.

On a 1989 Mitsubishi Pajero, the exhaust mounts do a simple but vital job: they suspend the exhaust system under the vehicle and soak up vibration so the cabin stays quiet and the pipework sits at the right height. By decoupling the exhaust from the chassis, these rubber insulators reduce drumming, prevent metal‑on‑metal knocks over corrugations, and help keep the system aligned so flanges and gaskets don’t get stressed.

For servicing, it’s worth giving the mounts a once‑over at every oil change, especially if the Pajero sees beach work or outback tracks. Look for perished rubber, splits around the holes, stretched loops, or shiny witness marks where the exhaust has been touching the crossmember, towbar, or body. Common tell‑tales include a low‑hanging tailpipe, a dull thud on take‑off, or a rattle over bumps. If there’s any doubt, replace—rubber is cheap insurance.

Replacement is straightforward with basic hand tools. Support the exhaust with a jack and wood block, then ease the old mounts off the pegs—silicone spray helps. Fit quality OEM‑equivalent rubber or heavy‑duty items if the wagon tows or carries gear. Polyurethane hangers can firm things up, but they can also transmit a bit more noise, many owners stick with rubber for comfort. While you’re there, check the steel brackets and pegs for rust, confirm clamps are snug, and make sure there’s proper clearance over the rear axle and around the tail of the transfer case. On lifted trucks or those with aftermarket mufflers, re‑checking alignment after a short drive is a good shout.

As a rule of thumb, inspect every 20,000–30,000 km and expect to renew aged mounts every few years—sooner if the Pajero lives in heat, salt, or rough conditions. Keeping the mounts fresh helps the old girl stay quiet, protects welds and joints, and saves chasing annoying knocks down the track.

• Typical symptoms of worn mounts: exhaust sagging, cabin drone, clunks on bumps, or visible cracks in the rubber.
• Good practice: replace mounts in pairs or across an axle line to keep the system sitting square.

Popular questions about 1989 Mitsubishi Pajero exhaust mounts

How many exhaust mounts does a 1989 Pajero have?
Most 1989 Pajeros use several rubber insulators spaced from the front pipe to the tail section—typically three to five depending on SWB/LWB body, engine, and market spec. A quick look under the wagon will show each mount at a bracket or hanger peg on the muffler and tailpipe sections.

Can polyurethane mounts be used instead of rubber?
Yes, polyurethane hangers can be fitted and may last longer and hold the system more firmly, which some owners like for off‑road use. The trade‑off is a touch more vibration and potential cabin drone. For a comfy daily, quality rubber often gives the best balance of isolation and durability.

What causes new mounts to fail early?
Heat from a misaligned exhaust, missing heat shields, and excessive movement from broken brackets or loose clamps can cook or tear new mounts. Make sure the exhaust is centred with good clearance, hardware is tight, and the hangers aren’t pre‑loaded during installation.