How much does it cost to replace the engine mount on a Lexus RX 350?

The typical total cost to replace a single engine mount on a Lexus RX 350 is about $500 to $1,800, depending on which mount is replaced, the quality of parts, and local labor rates.

Engine mounts play a crucial role in dampening vibrations and keeping the engine aligned with the drivetrain. When they wear out, drivers can experience clunks during acceleration, increased vibration at idle, or engine movement that can affect shifting and accessory alignment. The RX 350, powered by the 3.5L V6, uses multiple mounts that may need replacement over the vehicle’s life, with costs influenced by mount type and service method.

Cost factors that influence the price

Several elements determine the final bill for engine-mount replacement. Understanding these can help you budget and compare quotes accurately.

• Number of mounts being replaced (one vs. multiple).


• Type of mount (front/rear engine mounts, torque-strut mounts, or transmission/upper mounts).


• Parts quality (OEM vs. aftermarket or refurbished parts).


• Labor rate and time required (varies by shop and region, and by how easily the mount is accessible).


• Additional items that may be needed (bolts, brackets, or related components, and whether alignment is required).

Typical price considerations often break down into parts, labor, and location. Understanding these helps you weigh quotes from independent shops versus dealership service centers.

Typical price ranges by scenario

Use these ballpark figures to plan your budget. They assume a standard RX 350 with a straightforward replacement and may vary with your model year and local market.

• Single engine mount (front or rear): parts roughly $60–$350; labor about $150–$500; total estimate typically $210–$850.


• Two engine mounts (front and rear): parts roughly $120–$700; labor about $300–$900; total estimate typically $420–$1,700.


• Torque-strut or transmission-mount components (if included in the job): parts roughly $80–$250; labor about $100–$350; total estimate typically $180–$600.

Note that dealerships often charge higher hourly rates and may use OEM parts, driving the bill toward the upper end of these ranges. Independent shops commonly offer lower labor rates and a mix of OEM vs. aftermarket parts.

How costs vary by model year and mount type

The RX 350’s engine arrangement can differ slightly across model years, affecting access, labor time, and which mounts are involved. In early generations, you might replace front and rear engine mounts plus one or two stabilizer mounts; newer iterations sometimes consolidate mounting points or require fewer components. The more mounts that must be replaced, the higher the total cost, particularly if labor time increases due to engine/transmission clearance issues.

Front vs. rear engine mounts

Front mounts are typically easier to access than rear mounts in many RX 350 layouts, which can influence labor costs. Replacing a rear mount may require more components to be moved or removed, increasing both parts and labor time.

Torque-strut and other related mounts

Some RX 350 models use additional torque-strut mounts or transmission mounts that can be serviced in the same job. If these mounts are worn, including them can raise both parts and labor charges, but may reduce the need for later service calls if done proactively.

Tips to save money and get a fair price

Shop smarter by comparing multiple quotes, asking for itemized estimates, and planning for the most economical approach without compromising safety. Here are practical steps you can take.

• Obtain written estimates from at least two reputable shops, with a clear parts-and-labor breakdown.


• Ask whether the quote includes belts, fluids, or miscellaneous hardware that might be needed during the replacement.


• Consider aftermarket or OEM-equivalent parts to balance cost and longevity; confirm warranty terms.


• Inquire about a warranty on the labor and parts; some shops offer 12–24 months on mounts and installation.


• If you’re comfortable with a heuristic check, have the shop inspect for related issues (engine misalignment, transmission mounts, or worn bushings) that could be contributing to vibrations, so you address the root cause rather than just the symptom.

Planning ahead and getting multiple quotes can help you avoid surprises when the job begins. If you’re considering a DIY approach, be mindful of safety and the tools required, and ensure you have a solid plan for safely supporting the engine during replacement.

Summary

Replacing an engine mount on a Lexus RX 350 generally costs between $500 and $1,800 for a single mount, with higher totals if multiple mounts are replaced or if OEM parts and dealership labor are used. Labor rates, the specific mount type, and whether aftermarket parts are chosen all shape the final price. Always get an itemized quote, compare several shops, and consider warranties on parts and labor. This approach helps ensure you get reliable repair at a fair price.

Bottom line: plan for a broad range and confirm what is included in any quote to avoid surprises, and consider scheduling any related vibration or misalignment issues together to optimize value and downtime.

Is it okay to drive with bad engine mounts?

You can likely drive with bad motor mounts for short distances, but it's risky and not recommended, as continued driving can cause more damage and lead to dangerous situations. The longer you wait to fix them, the greater the chance of causing additional, costly damage to the engine, transmission, and other connected components. It is best to get the mounts inspected and replaced as soon as possible.
 
This video explains the symptoms of bad engine mounts and how to locate them: 46sMake It Easy MechanicYouTube · Dec 8, 2023
Risks of driving with bad motor mounts

• Increased vibration and noise: You will likely feel more vibrations, especially when accelerating, and hear loud clunks or grinding noises. 
• Damage to other components: The excessive engine movement can cause other parts to shift, potentially damaging or breaking hoses, vacuum lines, brake lines, and electrical harnesses. In severe cases, this could lead to a fire or loss of power brakes. 
• Accelerated wear: Driving with bad mounts puts extra stress on the remaining good mounts, potentially causing them to fail sooner. 
• Engine failure: In the worst-case scenario, the engine could shift dramatically and fall out or cause other catastrophic damage. 

What to do

• Drive minimally: If you must drive, do so as little as possible until you can get it fixed. 
• Get a professional diagnosis: A mechanic can properly assess the damage and advise on the best course of action. 
• Replace all mounts: When one mount is bad, it is often recommended to replace all of them at the same time to avoid future problems. 

This video explains how to diagnose bad motor mounts: 57sAuto Repair GuysYouTube · May 18, 2021

Is it worth replacing a motor mount?

Because it can lead to further damage and safety risks, you should fix a bad motor mount before continuing to drive. What's the typical cost of motor mount replacement? The typical cost can range from $150 to $500, depending on the make and model of your vehicle and labor costs.

What is the most common problem with Lexus RX 350?

The most common problem with the Lexus RX 350 is a massive oil leak, specifically from the VVT-i oil line, which can lead to rapid oil loss and potential engine failure, especially in older models like the 2010. Other frequent issues include faulty rain sensors, especially in newer models, resulting in wipers that malfunction randomly. Older model years (2007 and 2010) also show a tendency for airbag warning lights and transmission problems, while some 2016 models experienced rough shifting and transmission issues.
 
This video discusses the 2013 Lexus RX 350's common problems, including oil leaks and other issues: 55scar PROblemsYouTube · Jun 26, 2022
Engine and oil leaks 

• VVT-i oil line leak: This is a recurring issue, particularly in older models like the 2010, where the oil line can burst, causing significant oil loss and potential engine damage if not addressed immediately. 
• Check Engine light: This can be triggered by various engine issues, including problems with the variable valve timing system. 

Electrical and sensor problems 

• Rain sensor malfunction: Both older and newer models have reported issues with the rain-sensing wipers not functioning correctly or stopping randomly. 
• Airbag warning light: This has been reported across several model years, often linked to codes B0111 and B0116 due to issues like faulty sensors or a depleted airbag backup battery. 
• Infotainment system issues: Problems like malfunctioning touchscreens, unresponsive climate controls, and other glitches have been reported, particularly in recent years. 

Transmission and drivetrain issues

• Rough shifting: Some models, such as the 2016, have been reported to have delayed gear shifts and a lack of smoothness.
• Transmission failure: In the 2016 model year, transmission problems were significant enough to cause concerns about long-term reliability. 

Other potential problems

• Spontaneously shattering sunroofs: Though rare, this has been reported in some model years and is a significant safety concern. 
• Body integrity issues: Some older models, such as the 2010, have experienced body-related issues like rattling doors. 
• Steering mechanism leaks: These can be costly to repair. 

How much does it cost to replace the engine mount on a Lexus RX350?

The average cost for a Lexus RX350 Engine Mount Replacement is between $1,025 and $1,210. Labor costs are estimated between $396 and $581 while parts are typically priced around $629.