Parts for your 2021 Mitsubishi Eclipse cross-Exhaust mount

2021 Mitsubishi Eclipse Cross exhaust-mount: purpose, checks and replacement

Based on Mitsubishi Motors service information (Group 15 – Exhaust System) and the Mitsubishi ASA electronic parts catalogue for Eclipse Cross models in this generation, the 2021 Mitsubishi Eclipse Cross is fitted with exhaust mounts (rubber hanger insulators and associated brackets). These mounts support the front pipe, centre pipe and rear muffler, isolating vibration and holding the system in the correct position.

The exhaust-mount on an Eclipse Cross does a deceptively big job. Those small rubber insulators keep the exhaust from knocking the body, help control noise and vibration, and allow a bit of controlled movement as the engine and suspension do their thing. Typically, there are several mounts along the system: one near the front pipe, one around the mid‑section, and a pair at the rear muffler. On PHEV and petrol variants alike, the layout still relies on rubber hangers to suspend the pipework safely beneath the vehicle.

As part of routine servicing, it’s smart to give the mounts a once‑over. Heat, road grime, oil contamination and coastal conditions in Australia and New Zealand can harden or crack the rubber over time. Telltale signs include a droopy tailpipe, light thuds over bumps, rattles at idle, or the tip sitting off‑centre in the bumper cut‑out.

• Inspect at each service or every 20,000–30,000 km.
• Look for splits, glazing, stretching, or perished rubber.
• Check brackets for corrosion and loose fasteners.

Replacement is straightforward but should be done with the exhaust safely supported. A dab of silicone spray helps slide old hangers off and new ones on. If a mount has failed, it’s wise to inspect neighbouring mounts and the muffler brackets, as a sagging section can stress the others. Always refit fasteners to Mitsubishi’s workshop manual torque guidance to avoid squeaks, misalignment or future looseness.

Choosing quality OEM or reputable aftermarket hangers pays off with better NVH and longevity. If an owner notices the exhaust contacting the underbody, a sudden rattle after a speed hump, or the tailpipe sitting low, they shouldn’t leave it till the next rego/WOF check—sorting the mount early helps protect the catalytic converter, flex joint and sensors from undue strain.

• How many exhaust mounts are on a 2021 Eclipse Cross?
  Most vehicles have three to five, depending on variant and market spec. Expect one at the front/centre section and two around the rear muffler. PHEV and petrol layouts are similar, though bracket shapes can differ.
• How often should exhaust mounts be replaced?
  There’s no fixed interval. Inspect every service, in hot or coastal climates they commonly last 4–8 years. Replace at the first signs of cracking, sagging or excessive movement.
• Is it safe to drive with a broken exhaust mount?
  Short distances might be possible, but it risks banging the exhaust on the body, damaging the flex joint or catalytic converter, and creating excessive noise. It’s best to fix promptly.

Technical basis: Mitsubishi Motors Eclipse Cross workshop material (Group 15 – Exhaust System) for this generation and Mitsubishi ASA electronic parts catalogue listings for exhaust hanger insulators and brackets applicable to 2021 model year vehicles.