Parts for your 2010 Subaru Tribeca-Engine mount

2010 Subaru Tribeca engine-mount: what it does and when to replace it

Per technical sources—the Subaru Factory Service Manual for the 2010 MY Tribeca (Engine > Engine Mounting) and the OEM Subaru parts catalogue for the EZ36 H6—the 2010 Subaru Tribeca is fitted with dedicated engine-mounts. Specifically, it uses left- and right-hand hydro-elastic (liquid-filled) engine-mount insulators that bolt the boxer-six to the front crossmember, with a separate transmission mount supporting the driveline. So yes, an engine-mount is absolutely relevant and used on this model.

On the Tribeca, the engine-mount’s whole job is to hold the heavy H6 securely while soaking up vibration and torque reaction. Those liquid-filled mounts isolate the cabin from the engine’s shake, keep the driveline aligned under load, and stop the engine from thumping the subframe on hard take-off or over rough roads. When they’re tired, drivers often notice more vibration at idle, a brief shudder when selecting Drive or Reverse, or a dull clunk on acceleration and over bumps.

As part of routine servicing, it’s smart to cast an eye over the mounts from underneath: look for collapsed rubber, perished or split housings, or any tell-tale oily weep from the hydraulic insulators. A pry-bar check (gentle leverage on the engine while watching mount movement) can reveal excessive play, but go easy—no need to bruise a good mount. If one side is gone, it’s common practice to replace both left and right mounts together to keep balance and ride quality consistent.

Replacement on the Tribeca is straightforward for a trained tech: support the engine safely, remove the through-bolts and bracket fasteners, swap the mounts, then refit and torque to spec from the Subaru service manual. Recheck alignment and fastener torque after a few hundred kilometres if possible. Because these are fluid-filled, avoid using solvents on the rubber and don’t overtighten—crushing the insulator shortens its life.

Typical signs it’s time to act include:

• Noticeable vibration at idle in Drive, less in Neutral
• Thumps or knocks when taking off or changing gears
• Visible sagging or leakage from the mount body

Keeping the Tribeca’s engine-mounts healthy protects the exhaust, CVs and driveline from shock loads and keeps the cabin quiet—very decent value for comfort and longevity.

Popular questions

How long do engine-mounts last on a 2010 Tribeca?
With normal driving, many last 120,000–200,000 km. Heat, towing, and rough roads can shorten that. Because they’re hydraulic, once the rubber or fluid goes, comfort drops off quickly—inspect if vibration creeps in.

Can worn engine-mounts cause vibration at idle?
Yes. A tired mount can’t isolate engine shake, so you’ll feel it most in Drive at a standstill. If the vibration eases in Neutral, that’s a strong hint to check the mounts before chasing other causes.

Should both engine-mounts be replaced at once?
Often, yes. Age and heat affect them similarly, and replacing as a pair helps keep the engine sitting level and the feel consistent. Many workshops recommend doing both sides if one has failed.