Parts for your 2005 Subaru Impreza-Engine mount

2005 Subaru Impreza Engine Mounts: What They Do and When to Replace

Engine mounts are absolutely fitted to the 2005 Subaru Impreza. Technical sources including the 2005 Subaru Impreza Service Manual (Engine section: Engine Mounting), the Subaru FAST electronic parts catalogue (engine mounting insulators and brackets, LH/RH), and common workshop guides such as the Haynes Repair Manual for Subaru Impreza 2001–2011 all document the use of two primary rubber engine mounts on the front crossmember, along with a transmission mount and the upper pitch-stop to control engine roll.

On this model’s boxer engine, the engine mounts do the heavy lifting by supporting the engine, isolating vibration from the cabin and keeping the driveline aligned under throttle and braking. Good mounts mean a smoother idle, cleaner gear changes and less stress on exhaust joints, hoses and CVs. When they’re tired, the Impreza can feel a bit grumbly at the lights and thump on take-off.

For servicing, it pays to inspect the engine-mounts whenever the bonnet’s up for a major service or if there’s a complaint about vibration or clunks. Look for cracked or collapsed rubber, separated bonding, or rubber soaked in oil from rocker cover or power steering leaks. Any sag or excessive engine movement when blipping the throttle is a giveaway.

• Common symptoms: harsh vibration at idle in Drive, clunk on acceleration or shifting, knocking over bumps, misaligned exhaust or shifter feel, and visible perishing of the rubber.
• Best practice: replace mounts in pairs, choose quality OEM or reputable aftermarket, and check the transmission mount and the pitch-stop at the same time.

Replacement on the 2005 Impreza is straightforward for a workshop: safely support the engine (use a brace or a jack with a timber block under the sump), remove the through-bolts and mount nuts, lift slightly to relieve tension, swap mounts, then lower and torque with the engine at rest. After fitting, confirm exhaust clearance, intercooler or intake pipe alignment, and that there’s no contact at idle or under a quick throttle snap. If there’s been long-term movement, it’s smart to recheck fasteners after a few hundred kilometres.

With fresh mounts, the Impreza feels tighter, quieter and more refined—exactly how a well-sorted Subaru should.

Popular questions about 2005 Subaru Impreza engine-mounts

How many engine mounts does a 2005 Subaru Impreza have?
It runs two primary rubber engine mounts on the front crossmember. There’s also a transmission mount at the rear of the gearbox and a pitch-stop (torque rod) up top that limits engine rock. Shops often assess all of them together because wear in one can mask or accelerate wear in the others.

How long do the mounts usually last?
Many last 150,000–250,000 km, but heat, age and oil contamination can shorten that. If the car idles rough in gear or clunks on take-off, it’s time for a closer look regardless of kilometres. Regularly fixing oil leaks helps the mounts live longer.

Can worn mounts damage other parts?
Yes. Excess movement can stress exhaust flex joints, turbo plumbing (WRX), CVs and even tweak shifter alignment. Replacing tired mounts restores proper driveline geometry and helps protect those components.