Parts for your 2012 Subaru Tribeca-Engine mount

2012 Subaru Tribeca engine mount — what it does and when to replace it

Technical sources confirm the 2012 Subaru Tribeca uses engine mounts. The Subaru factory service manual for the 2012MY Tribeca (EZ36) includes an Engine Mounting procedure covering removal/installation of the left and right engine mounting insulators and brackets. Subaru’s electronic parts catalogue (FAST) likewise lists LH and RH hydraulic engine mounts for the EZ36D Tribeca, along with a separate transmission mount. So an engine mount is absolutely relevant to this vehicle.

The Tribeca’s engine mounts are hydraulic isolators that bolt the 3.6‑litre flat‑six to the front subframe, keeping the engine securely located while soaking up vibration. By controlling movement under load, they protect exhaust joints, hoses, and the driveline, and keep the cabin calm at idle and out on the open road. They also help the gearbox and shafts stay in proper alignment, which reduces NVH and wear.

With age, heat, and typical Aussie and Kiwi road conditions, the rubber and fluid inside a mount can harden, crack, or leak. Common signs the mounts are on the way out include:

• Noticeable vibration felt through the seats or steering at idle
• A thud or clunk when shifting from Park to Drive/Reverse
• Excessive engine rock on start‑up or during take‑off
• Visible cracking, collapse, or fluid seepage at the mount
• New exhaust or intake knocks that weren’t there before

Good servicing practice is to visually inspect and gently lever-test the mounts at major services (around every 50,000–60,000 km), or sooner if there’s extra vibration or driveline thuds. Look for collapsed rubber, shiny metal-to-metal witness marks, and any oil or hydraulic fluid weeping from the mount body. It’s smart to assess the transmission mount at the same time, because excess engine movement often shows up there too.

Replacement is straightforward for a trained tech but needs a methodical approach. The engine is supported from underneath or with a brace, the through-bolts and brackets are removed, and the correct left and right mounts are fitted—orientation matters on hydraulic mounts. Subaru procedures specify renewing self‑locking fasteners, and final torque should be applied at normal ride height so the rubber isn’t preloaded at a weird angle. Many workshops replace both engine mounts together to keep NVH balanced.

Quality counts. Genuine or reputable aftermarket hydraulic mounts usually deliver the best cabin refinement, while cheaper solid rubber copies can add buzz. Towing, corrugated roads, heat, and stop‑start commuting shorten service life, gentler use can see mounts last well past 150,000 km. Keeping oil leaks in check also helps, as oil can degrade rubber over time.

How many engine mounts does a 2012 Subaru Tribeca have?

The Tribeca uses two primary engine mounts (left and right) plus a separate transmission mount. Some people refer to these collectively as three powertrain mounts. The left and right engine mounts are not interchangeable.

What are the symptoms of worn engine mounts on a Tribeca?

Owners typically notice more vibration at idle, a thunk when selecting Drive or Reverse, or extra engine movement on start‑up and acceleration. Visual checks can reveal cracks, a collapsed stance, or fluid leaks from the mount body.

Do engine mounts need regular maintenance, or just replacement?

They don’t need routine maintenance beyond inspection. During servicing, checking for perishing, leaks, and loose fasteners is enough. If a mount is degraded, replacement is the fix. Keeping oil leaks at bay helps extend mount life.