Parts for your 2012 Nissan Pathfinder-Engine mount

2012 Nissan Pathfinder Engine Mounts: Purpose, Care, and When to Replace

Engine mounts are absolutely fitted to the 2012 Nissan Pathfinder (R51, AU/NZ market). The Nissan Electronic Service Manual (ESM) for the R51 platform details left and right engine mounting insulators and related brackets for both the VQ40DE petrol and YD25DDTi diesel variants, and the Nissan parts catalogues (including dealer EPC/FAST) list these mounts as serviceable components. Aftermarket catalogues for 2012 Pathfinder also supply direct-fit hydraulic and rubber insulator mounts, confirming their use on this model.

On this Pathfinder, the engine mounts secure the engine to the chassis while isolating vibration and absorbing torque movement. That keeps the cabin quiet, protects hoses, wiring and exhaust joints from excessive movement, and helps the driveline feel smooth under load. Most R51 mounts are rubber or hydraulic insulators, tuned to cut down harshness at idle and during take-off.

As part of regular servicing, it’s smart to give the mounts a look-over every 40,000–60,000 km or whenever there’s increased vibration. Tell-tale signs include:

• Noticeable shake through the steering wheel or seats at idle
• Clunk or thud on gear changes, take-off, or when lifting off
• Visible sagging, cracked rubber, or fluid weeping from hydraulic mounts
• Excessive engine rock when blipping the throttle under the bonnet

Replacement is straightforward for an experienced tech: safely support the engine with a jack and timber block, loosen the mount-to-bracket and subframe fasteners, swap the insulator, then torque to spec from the Nissan ESM. On some variants, removing the undertray or slightly shifting ancillary components helps with access. It’s wise to replace mounts in pairs (left and right) to maintain balance, and to check the transmission mount at the same time.

Good practice after installation includes rechecking torque after a short shakedown, confirming idle quality with the A/C on, and ensuring there’s proper clearance around exhaust and steering components. If the vehicle tows regularly, sees corrugations, or does low-range work, inspect more frequently—heat, oil contamination, and constant load changes accelerate wear.

Keeping fresh, healthy mounts pays off with a smoother, quieter Pathfinder, nicer shifts, and reduced stress on the rest of the driveline.

Popular questions about 2012 Nissan Pathfinder engine mounts

How long do engine mounts last on a 2012 Pathfinder?
In typical Aussie and Kiwi conditions, many last 120,000–180,000 km, but heavy towing, rough roads, fluid leaks over the mount, or high under-bonnet temps can shorten that. Regular inspections during major services catch early wear before vibrations get annoying.

Can I keep driving with a worn engine mount?
Short-term, the car will usually still drive, but expect extra vibration and the risk of clunks. Prolonged driving can stress exhaust flex joints, hoses, and even CVs/uni joints. It’s best to plan a replacement once symptoms show.

Do I need to replace both engine mounts or just the bad one?
It’s possible to replace a single failed mount, but many techs recommend doing left and right together to keep NVH balanced and avoid a quick return visit if the other side is close to failing.