A Guide to Engine Mounts for the 2007-2013 Lexus RX350
Experiencing strange vibrations in your Lexus RX350? Your engine mounts might be the cause.
- A key symptom of a bad mount is vibration at idle while in gear, which often vanishes in Park or Neutral.
- For a smooth, vibration-free ride, OEM mounts are strongly recommended by owners over aftermarket alternatives for this vehicle.
- If using aftermarket parts, limit them to simple solid mounts like the top torque strut ('dog bone') to reduce risk of vibration issues.
- Ensure you buy the correct part for your model year, as mounts differ between the 2007-2009 and 2010-2013 models.
Is Your RX350 Showing Signs of a Bad Engine Mount?
A worn engine mount on a 2007-2013 Lexus RX350 makes itself known through vibrations and noises. Because this vehicle was built for a smooth, quiet ride, even a small change is noticeable. Look for these specific signs:
- Vibration at a Stop: The most common symptom is a noticeable vibration felt in the seat and steering wheel when the vehicle is stopped at a light with the transmission in Drive or Reverse. Often, this vibration will lessen or disappear if you shift into Neutral or Park.
- Vibration While Driving: You might feel a shudder or vibration from the engine during acceleration, sometimes specifically between 40-50 mph.
- Clunking Noises: Loud thumps or clunks from the engine bay when you accelerate, put the car in gear, or brake can indicate a failed mount allowing the engine to move too much.
- Visible Engine Movement: With the hood open and the parking brake set, have a helper briefly rev the engine while it's in Drive (with their foot firmly on the brake). If you see the engine rock or lurch excessively, a mount has likely failed.
- Leaking Fluid: The main engine mounts on the RX350 are often hydraulic. If one fails, it can leak a dark, oily fluid onto the subframe below it.
OEM vs. Aftermarket: An Honest Assessment for the RX350
For most cars, aftermarket parts offer a good balance of quality and price. However, for the engine mounts on a Lexus, the story is different. The general consensus among experienced RX350 owners and mechanics is that aftermarket mounts often do not provide the same level of vibration damping as the Original Equipment (OEM) parts. Many owners who have tried budget-friendly aftermarket brands report that vibrations continued or the parts failed in less than a year. The hydraulic mounts, in particular, are difficult for aftermarket brands to replicate with the same performance as the factory originals.
- Economy Brands (Anchor, DEA, Westar): These brands are widely available and very affordable. However, forum discussions for Lexus vehicles show a high rate of dissatisfaction, with complaints of poor fit, increased vibration, and short service life. Consider these only if budget is the absolute primary concern, and be prepared for potential ride quality issues.
- OEM Parts: While significantly more expensive, OEM mounts are designed specifically for the RX350's 2GR-FE engine and chassis. They provide the best fit and vibration absorption, restoring the original smooth and quiet ride. For the main hydraulic mounts (front and side), OEM is strongly recommended.
Pro Tip: If you must use aftermarket parts to save on costs, consider using them only for the less critical, solid rubber mounts like the upper torque strut (often called a 'dog bone'). For the main fluid-filled mounts that do the heavy lifting, investing in OEM parts will likely save you from doing the job twice.
Common Ordering Mistakes & Model Year Differences
The 2007-2013 Lexus RX350 spans two different vehicle generations. The second generation ended in 2009, and the third generation began in 2010. While they share the same engine, some chassis parts, including engine mounts, are different. Always verify the part fits your specific model year (e.g., 2007-2009 vs. 2010-2013) before ordering. Kits are often sold for these specific year ranges.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Mounts | $14 - $190 |
| New OEM Mounts (per mount) | $135 - $250+ |
| Shop Labor for Replacement (per mount) | $150 - $300+ |
| Total Professional Replacement (OEM) | $650 - $1,100+ |
Frequently Asked Questions (FAQ)
Were there any recalls or TSBs for RX350 engine mounts?
No. Searches of the National Highway Traffic Safety Administration (NHTSA) database show no specific safety recalls or Technical Service Bulletins (TSBs) for engine mount failure on the 2007-2013 Lexus RX350.
Which mount fails most often?
The front hydraulic mount, located between the radiator and the engine, and the upper torque strut mount ('dog bone') are common failure points. The front mount is critical for damping vibrations under load.
🎬 Watch: Step-by-step guide to replacing the front motor mount.Can I replace just one engine mount?
Yes, you can replace only the failed mount. However, engine mounts wear at a similar rate. If one has failed, the others are likely worn as well. Replacing them as a set can save on future labor costs and ensure the entire system is fresh.
Is this a good DIY job?
Replacing engine mounts on the RX350 is a job for an experienced DIYer. It requires safely supporting the engine's weight with a floor jack while unbolting the mounts. Access to some bolts can be difficult, and on this specific vehicle, other components may need to be moved or removed to get a mount out.
🎬 See this walkthrough for a complete RX350 mount replacement.Helpful Videos
Technical Specifications
OEM Part Numbers: 12360-0P070 12362-31060
The 2007-2013 Lexus RX350 uses a system of multiple mounts, including a front hydraulic mount, a rear mount, side/transmission mounts, and an upper torque strut mount. The hydraulic design is critical for vibration absorption.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Lexus RX350: