Parts for your 2012 Subaru Outback-Exhaust mount

2012 Subaru Outback exhaust mount — purpose, care, and when to replace

Yes, the 2012 Subaru Outback uses exhaust mounts (also called exhaust hangers). This is confirmed in Subaru’s Factory Service Manual for the BR/BM platform (2010–2014), which details removing and refitting the muffler hangers during exhaust service, and in Subaru’s parts catalogues that list the rubber “grommet/hanger” used to suspend the system from the body. Typical Subaru genuine part references for this model range include rubber exhaust grommets/hangers and associated brackets specific to the Outback’s rear and centre sections.

On this Outback, the exhaust mounts are the small but crucial rubber isolators that hold the exhaust up while letting it move a little. Their job is to keep the pipework and mufflers securely positioned, soak up vibration, and allow for engine movement and heat expansion without rattles or knocks. Good mounts help maintain correct exhaust alignment, reduce droning in the cabin, and prevent the system from touching the underbody or rear bumper when the vehicle hits bumps or when the engine torques over.

As part of regular servicing, it’s smart to inspect the rubber mounts every 10,000–20,000 kilometres or at each service interval. Look for perishing, cracks, tearing, elongation of the holes, or sagging that lets the exhaust sit too low. A thump over bumps, a tinny rattle at idle in Drive, or the tailpipe sitting off-centre in the bumper cut-out are common clues the mounts are past their best. If one mount fails, the extra weight transfers to the remaining hangers, so timely replacement avoids a cascade of issues.

Replacement is straightforward with the right approach: safely support the exhaust, spray silicone lubricant on the old rubbers, then lever them off the pegs. Refit using new OEM-quality rubber mounts, polyurethane can be firmer but may introduce extra NVH. After fitting, check clearances around the subframe, heat shields, and bumper, and make sure the system isn’t pre-loaded or twisted. While there, give the brackets a once-over for corrosion and confirm all fasteners are snug. A quick preventative touch—like a dab of silicone spray on the new rubbers—makes future servicing easier and helps keep the 2012 Outback’s exhaust quiet, rattle-free, and sitting exactly where it should.

• Symptoms to watch: sagging tailpipe, clunks over bumps, new vibrations, visible cracks in rubber, metal-to-metal contact.

Popular questions about 2012 Subaru Outback exhaust mounts

How often should the exhaust mounts be replaced?
There’s no fixed kilometre limit, but inspecting them at every service is wise. In Aussie and Kiwi conditions, many last 5–10 years. Replace at the first sign of cracking, elongation, sagging, or if the exhaust alignment can’t be set without tension.

What are the tell-tale signs a mount has failed?
Common signs include a droopy tailpipe, dull thud over bumps, a new rattle at idle with the air-con on, or the muffler touching a heat shield. A visual check usually shows perished rubber or a torn grommet.

Are universal hangers OK, or should genuine parts be used?
Quality universal rubber hangers can work in a pinch, but genuine or OEM-spec parts typically fit better, keep the correct ride height, and preserve factory noise and vibration levels on the 2012 Outback.