Parts for your 2011 Subaru Impreza-Engine mount

2011 Subaru Impreza engine mount — what it does and when to replace it

Yes, the 2011 Subaru Impreza is fitted with engine mounts. This is confirmed in Subaru’s Factory Service Manual for MY11 Impreza (Engine section: “Engine Mounting”) and the Subaru FAST electronic parts catalogue, which list left and right engine mounts, a transmission mount, and the pitching stopper (a.k.a. pitch stop rod). Typical OE mount part numbers vary by engine and market (for many EJ‑series cars you’ll see RH/LH engine mounts in the 41022AGxxx range and a pitch stopper in the 41040AGxxx range). Those technical sources make it clear the mounts are essential hardware on every 2011 Impreza variant, from everyday commuters to WRX and STI models.

On this Subaru, the engine mounts secure the flat‑four under the bonnet while isolating vibration from the cabin. They control fore‑aft “rock” under throttle and braking, keep driveline angles happy, and reduce noise, vibration and harshness (NVH). Most are rubber‑insulated mounts matched to the car’s balance of comfort and response, while performance variants may run firmer specs.

Signs the mounts are due for attention:

• More vibration felt at idle through the steering wheel or seats
• Clunks on take‑off, gear changes, or over sharp bumps
• Visible sagging, cracking or separated rubber, torn pitch stop bush
• Excessive engine movement when blipping the throttle with the bonnet open

As part of regular servicing, they should be visually inspected every 20,000–30,000 km and more often if the car tows, sees rough roads, or is driven spiritedly. Many owners find replacement becomes sensible around 150,000–200,000 km, but hard use can shorten that. When replacing, support the engine safely with a support bar or hoist (avoid jacking directly under an alloy sump), swap mounts side‑for‑side as a pair, and check the transmission mount and pitch stopper at the same time. Always follow the Subaru service manual for torque specs and fastener sequences, and snug the hardware with the drivetrain at normal ride height to prevent preload. After installation, a quick re‑check of fasteners after a few hundred kilometres is good practice.

Choosing firmer aftermarket mounts will sharpen response but add NVH. Most daily drivers stick with genuine or OE‑quality rubber mounts for a quieter, smoother run across Kiwi and Aussie roads.

FAQs

How long do engine mounts last on a 2011 Impreza?
For typical city and highway use, many last 150,000–200,000 km. Cars that see lots of stop‑start, track days, or rough roads can need them sooner. Regular inspections during scheduled services help catch wear before it becomes annoying vibration or knocks.

Can worn engine mounts damage other parts?
Yes. Excess engine movement can stress exhaust joints, split intake hoses, and upset driveline alignment, which may accelerate wear on the transmission mount and CV joints. Replacing tired mounts restores alignment and saves chasing rattles and leaks.

Should the pitch stop be replaced with the engine mounts?
It’s smart to inspect and often replace the pitch stop at the same time. A cracked or soft pitch stop bush lets the engine rock under load, undermining the benefit of fresh side mounts, especially on turbo models.