Parts for your 2017 Mitsubishi Outlander-Exhaust mount

2017 Mitsubishi Outlander exhaust mount — purpose, care, and when to swap it out

Yes, the 2017 Mitsubishi Outlander uses exhaust mounts (also called exhaust hangers or insulators). Technical sources that document this include the Mitsubishi Motors Outlander ZK/ZL (2015–2018) Service Manual, Group 15: Exhaust, the Mitsubishi ASA electronic parts catalogue for Outlander MY2017 (muffler and mounting insulators), and general procedures covered in the Haynes Mitsubishi Outlander 2013–2019 Repair Manual. These show rubber insulator mounts supporting the front pipe, centre section, and rear muffler to keep the system aligned and quiet.

On the Outlander, exhaust mounts are heat-resistant rubber insulators that suspend the exhaust so it can move slightly without banging on the body or transferring harsh vibration into the cabin. They hold the pipework at the right height and angle, protect welds and flex joints from stress, and keep clearance around the rear bumper, suspension and underbody. When they harden, crack, or tear, the exhaust can sag or shift, leading to knocks, rattles, and sometimes premature leaks at joints.

Good workshop practice in AU/NZ is to check the exhaust mounts at every service or WOF/roadworthy. They’re small, inexpensive items that do a big job in ride comfort and longevity. Telltale signs your Outlander’s mounts are on the way out include:

• Rattling or thudding from the rear over bumps or at idle
• Exhaust tip sitting off-centre or lower than usual
• Visible perishing, splits, or stretched rubber insulators
• Occasional exhaust contact with the subframe or heat shields

Replacement is straightforward: safely support the exhaust, unhook the old insulators from their pegs, inspect brackets for rust or bent hangers, and slip on new mounts (a dab of silicone spray helps). While you’re there, check heat shields and muffler brackets, and verify the tailpipe clears the bumper cut-out evenly. Sticking with quality OEM-equivalent rubber mounts preserves the Outlander’s refinement, heavy-duty polyurethane can last longer but may add a touch more vibration.

Drivers who tow, travel on corrugated roads, or live near the coast may need mounts sooner thanks to heat cycling and corrosion. If any mount is torn or the system is sagging, don’t put it off—replacing all mounts on the affected section at once keeps the exhaust supported and prevents strain on the flex joint and flanges.

Popular questions

How many exhaust mounts does a 2017 Outlander have?
Most 2017 Outlanders use multiple rubber insulators spread across the front pipe, centre resonator, and rear muffler. The exact count can vary slightly by engine and exhaust layout, but there are typically three to five. A quick look under the vehicle will confirm what yours has.

Can you drive with a broken exhaust mount?
It’ll usually still drive, but it’s not a great idea. A failed mount lets the exhaust swing, which can bang on the body, stress joints, and crack welds. If you hear knocks or see the muffler sagging, get the mounts replaced promptly to avoid bigger repair bills.

What’s the best replacement: OEM rubber or aftermarket?
Quality OEM-style rubber mounts are ideal for comfort and noise control on the Outlander. Heavy-duty aftermarket options can be tougher, but may transmit a bit more vibration. For family and daily use, go with OEM-equivalent rubber from a trusted brand.