Parts for your 2021 Honda Cr-v-Exhaust mount

2021 Honda CR‑V exhaust mount: purpose, care and when to replace

Per Honda’s workshop manual for the RW/RL generation (2017–2022) and OEM parts catalogues, the 2021 Honda CR‑V’s exhaust is suspended under the vehicle by a series of rubber exhaust mounts (also called hangers or insulators). Major aftermarket catalogues for this model year likewise list replacement exhaust hanger insulators, confirming the part is used on the vehicle.

On the CR‑V, these rubber mounts isolate engine and exhaust vibration from the cabin, hold the pipe and muffler at the correct height, and allow a bit of controlled movement so the system can expand and contract with heat without knocking on the bodywork. When the mounts harden, crack or stretch, the exhaust can droop, rattle over bumps, or thump on start‑up and shutdown. Left alone, that extra movement can stress joints, gaskets and welds.

There isn’t a set replacement interval for exhaust mounts, they’re a “inspect and replace as needed” item. A good rule for Aussie and Kiwi conditions is to check them at every service or at least every 20,000–30,000 kilometres—more often if the CR‑V tows, sees corrugations, or lives by the coast. Look for perishing, splits, shiny witness marks where the exhaust has been touching heat shields, or a tailpipe that no longer sits centred in the bumper cut‑out.

• Common signs a mount is due: cold‑start thud, new rattles over rough roads, visible sagging of the muffler, exhaust contacting the subframe or shields, or a rubber insulator that’s visibly cracked or oil‑soaked.
• Best practice when replacing: support the exhaust with a jack and block, remove the old insulators, and fit quality OEM‑equivalent rubbers. A silicone spray helps slide the hangers on and off—avoid petroleum‑based lubes that can attack rubber.
• Do them in pairs or as a set on that section so height and tension stay even, then check clearances around the driveshaft tunnel, heat shields and rear bumper. If brackets are bent, straighten or replace them so the new mounts aren’t overloaded.

Because the mounts double as vibration isolators, fresh rubbers often sharpen up the CR‑V’s overall refinement. It’s a small, cost‑effective job that can protect the rest of the exhaust and keep the cabin quiet on long Kiwi and Aussie drives.

Popular questions about 2021 Honda CR‑V exhaust mounts

Does the 2021 CR‑V definitely have exhaust mounts?
Yes. Honda’s service information for the RW/RL platform and dealership parts diagrams show multiple rubber hanger insulators supporting the mid‑pipe and rear muffler. Aftermarket catalogues for 2017–2022 CR‑V also list direct‑fit hanger insulators, so they’re absolutely fitted.

How long do exhaust mounts last on a 2021 CR‑V?
It varies with climate and use. In mild conditions they can last many years, but coastal air, heat, towing or rough roads age the rubber faster. Inspections at each service are recommended, with many owners replacing tired mounts somewhere between 80,000 and 150,000 kilometres.

Can worn mounts damage the rest of the exhaust?
They can. Excess movement can stress flex joints, crack welds, or wear holes where the pipe touches shields or the body. Replacing perished mounts early is cheaper than chasing leaks or broken brackets later.