Parts for your 2013 Lexus Is-Engine mount

2013 Lexus IS engine mount – what it does and when to replace it

The 2013 Lexus IS absolutely uses engine mounts. Technical sources including the Lexus TIS (factory Repair Manual) for the 2013 IS250/IS350 (GSE20/21/25/26) specify left and right “engine mounting insulators” and a rear transmission mount as part of the Engine Mounting section. The Toyota/Lexus Electronic Parts Catalog lists these as “Insulator, Engine Mounting, RH/LH” for the 4GR-FSE and 2GR-FSE engines used in this model year, and major OEM/aftermarket catalogues specify hydraulic (fluid-filled) mounts for this platform. So, an engine-mount is not only relevant—it’s essential kit on the 2013 Lexus IS.

On this Lexus, the engine mounts do two main jobs: they hold the engine in the correct position and isolate vibration so the cabin stays quiet and smooth. The hydraulic design helps soak up idle buzz, stop-off-throttle shudder, and harshness when changing gears or rolling on and off the throttle. Healthy mounts also keep driveline angles correct, protecting CV joints, exhaust flex joints, and transmission mounts from extra stress.

Engine mounts aren’t a regular “replace by” service item, but they’re worth inspecting during scheduled servicing—especially as the kilometres rack up. Heat, oil exposure, and age can cause the rubber to crack or the hydraulic fluid to leak out, dulling their ability to control movement.

• Common symptoms: more vibration at idle (felt through the seat or steering wheel), a thunk on take-off or when shifting, visible engine rock under the bonnet when blipping the throttle, or a faint buzz that wasn’t there before.
• Inspection tips: look for collapsed rubber, torn bonding, or wet, oily residue on the mount bodies indicating fluid loss. Check adjacent components for witness marks from contact.
• Replacement advice: quality OEM or reputable aftermarket hydraulic mounts restore refinement. Many techs replace left and right mounts as a pair to keep balance. Follow the factory procedure for safely supporting the engine, loosening subframe brackets as directed, and applying the correct torque. Replace any single‑use hardware noted in the Lexus manual.
• Service interval guidance: there’s no fixed kilometre limit, but it’s common to see wear around 120,000–200,000 km, sooner if the car sees lots of stop‑start or high heat. If you’re chasing a vibration complaint, rule out misfire, tyres, and exhaust contact before condemning the mounts.

Popular questions about 2013 Lexus IS engine mounts

How long do engine mounts last on a 2013 Lexus IS?
Most last well past 120,000 km, and many make it to 200,000 km or more. Heat, oil leaks, and city stop‑start driving shorten their life. Regular inspections during servicing help pick up wear before it gets annoying.

What are the signs the mounts need replacing?
Extra vibration at idle, a clunk when shifting from Reverse to Drive, or obvious engine movement when you crack the throttle are classic tells. Fluid weeping from the mount housings is another sure sign on the hydraulic type used in the IS.

Should they be replaced in pairs?
It’s common practice to replace the left and right engine mounts together to keep support and damping even. If one side has failed or collapsed, the other is usually tired too. Use quality hydraulic mounts and follow the Lexus torque specs.