QUALITY AUTOPARTS Q18470301A Engine Motor Mount Transmission MR184355 5PC 3.5L

( Brand: Quality Autoparts ), ( Manufacturer Part Number: Q18470301A ), ( Items Included: Engine Mount ), ( Placement On Vehicle: Front, Rear, Right ), ( Type: Engine Mount Kit ), ( Material: Rubber ), ( Oe/oem Part Number: A42015 A62036hy A4262 A4207 A4259 ), ( Manufacturer Warranty: 1 Year ), ( Performance Part: Yes ), ( Vintage Part: No ), ( Mounting Style: Bolt-on ), ( Ipn: Mr184355 ), ( Fitment Type: Direct Replacement )

Review QUALITY AUTOPARTS 5pc Engine Motor Mount And Transmission Toyota 3.5l fits HIGHLANDER

The **Q18470301A 5-Piece Engine Motor Mount Transmission Assembly for Toyota Highlander (3.5L V6)** is a high-quality, precision-engineered replacement part designed to restore optimal performance, stability, and durability to your vehicle s powertrain system. This meticulously crafted set includes all essential components required to replace the original factory mounts and transmission support hardware, ensuring a seamless fit and reliable operation. The assembly features heavy-duty rubber bushings and reinforced steel brackets, engineered to absorb engine vibrations, reduce road noise, and maintain proper alignment between the engine, transmission, and chassis. Ideal for Toyota Highlander models equipped with the **3.5L V6 engine**, this aftermarket upgrade is built to withstand the demands of daily driving, off-road adventures, or heavy loads, while also helping to prevent premature wear on suspension components and drivetrain parts. Whether you're addressing a worn-out mount, addressing rattling noises, or performing a routine maintenance upgrade, this **5-piece kit** provides a complete solution with easy installation no additional hardware or modifications required. Backed by rigorous quality testing and designed to meet or exceed OEM specifications, this transmission mount assembly is a trusted choice for mechanics and DIY enthusiasts seeking long-lasting performance and peace of mind.

### **Pros and Cons of buying a Q18470301A 5-Piece Engine Mount, Transmission Mount, and Subframe Bracket Set for a 2005-2014 Toyota Highlander (3.5L V6)**

1. **OEM Replacement Quality** This part is designed as a direct replacement for the original Toyota components, ensuring proper fitment, durability, and compatibility with the Highlander s suspension and drivetrain.

2. **Improved Durability** Many aftermarket or generic mounts wear out prematurely due to inferior materials. The Q18470301A set is built to last longer, reducing the risk of sudden failure, which can lead to engine movement or transmission misalignment.

3. **Better Vibration Control** Worn-out mounts can cause excessive engine and transmission vibration, leading to a rough ride and potential damage to surrounding components. These new mounts help isolate vibrations, improving comfort and longevity of related parts.

4. **Prevents Drivetrain Misalignment** Over time, mounts degrade, allowing the engine and transmission to shift slightly. This can cause drivetrain angles to change, leading to poor shifting, transmission wear, or even failure of the transfer case or differential.

5. **Easy Installation** Toyota s OEM parts are designed for straightforward installation, though some experience may be required for proper alignment and torque specifications. The kit includes all necessary hardware for a complete replacement.

6. **Prevents Costly Repairs** Failing mounts can lead to more severe issues, such as a broken subframe, damaged transmission mounts, or even engine mounts snapping, which can result in thousands of dollars in repairs. Replacing them proactively is a cost-effective preventive measure.

7. **Maintains Warranty Coverage** If installed correctly, these OEM parts may help retain some warranty coverage for related components, depending on the vehicle s age and condition.

8. **Available from Authorized Dealers & Trusted Suppliers** Purchasing from Toyota or a reputable parts distributor ensures authenticity, reducing the risk of counterfeit or low-quality fakes.

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1. **Higher Upfront Cost** Compared to aftermarket or generic replacement parts, OEM mounts are more expensive. The price can range from **$200 $400 **, depending on the supplier and whether additional labor is required.

2. **Labor-Intensive Installation** Replacing engine and transmission mounts typically requires lifting the vehicle, removing the engine/transmission supports, and ensuring proper alignment. This is a job best left to a professional mechanic unless you have significant mechanical experience.

3. **Potential for Overkill** If the mounts are only slightly worn but still functional, replacing them may be unnecessary unless you re experiencing noticeable issues (e.g., rattling, poor ride quality, or warning lights for drivetrain angles).

4. **Risk of Incorrect Installation** Improper torque or misalignment during installation can lead to premature wear or even damage to the mounts themselves. Following the manufacturer s specifications is critical.

5. **Limited Lifespan (Like All Parts)** While these mounts are durable, they are not "forever" parts. Under extreme conditions (e.g., off-roading, heavy loads, or aggressive driving), they may still wear out faster than expected.

6. **May Not Solve Underlying Issues** If the problem stems from something other than the mounts (e.g., a failing subframe, transmission issues, or suspension damage), replacing just the mounts won t fix the root cause.

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The **Q18470301A 5-piece engine mount, transmission mount, and subframe bracket set** is a **high-quality OEM replacement** that offers significant benefits in terms of durability, vibration control, and drivetrain stability. It is particularly worthwhile if you re experiencing **visible wear, rattling, poor ride quality, or warning lights** related to engine/transmission movement.

However, if the mounts are still in **good condition** and you re not encountering any issues, the cost may not justify a replacement. That said, given the **potential for catastrophic failure** (e.g., a snapped mount causing engine detachment), many mechanics recommend replacing them **proactively every 100,000 150,000 miles** as a preventive measure.

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- You notice **excessive engine/transmission movement, rattling, or vibration**.

- You re performing a **major service** (e.g., engine swap, transmission replacement) and want to replace them as part of the job.

- You re concerned about **long-term reliability** and want to avoid unexpected failures.

- You have **access to a mechanic** who can install them correctly.

- The mounts appear **visually intact** with no signs of cracking or excessive wear.

- You re on a **tight budget** and can monitor them for further deterioration.

- You lack the **mechanical skill or tools** to install them safely.

- **Get a professional inspection** before purchasing to confirm if replacement is necessary.

- **Compare prices** from Toyota dealerships, authorized Toyota parts suppliers, and trusted online retailers (e.g., RockAuto, Dorman, or eBay from verified sellers).

- **Budget for labor** ( $150 $300 at a shop) if you don t plan to DIY the installation.

**Final Verdict:** **Worth the investment for long-term reliability**, especially for high-mileage Highlanders. If symptoms are present, replacing them is a **smart preventive measure** to avoid more costly repairs down the road.

Details:

1x Rear Motor Mount. 1x Front Motor Mount. Aftermarket Products with Premium Quality. Compatible With.

No Instruction Included. 1x Right Motor Mount. Feature: Stable characteristics, high reliability. 1x Left Transmission Mount Right Torque Strut.

This will maintain your engine and keep driving experience as smooth possible.

part #: q18470301a prices

• $38.98-$93.97

specifications engimou:

• for models: Highlander
• for makes: Toyota
• brand: Quality Autoparts
• mpn: Q18470301a
• items included: Engine Mount
• placement on vehicle: Front, Rear, Right
• type: Engine Mount Kit
• material: Rubber
• oe/oem part number: A42015 A62036hy A4262 A4207 A4259
• manufacturer warranty: 1 Year
• performance part: Yes
• vintage part: No
• mounting style: Bolt-on
• ipn: Mr184355
• fitment type: Direct Replacement

payments engimou:

• wallet: Apple-pay
• other
• credit card: Diners-club

general engimou:

• Car Truck Parts Accessories > Engines Engine Parts > Engine Mounts
• condition: New

seller engimou:

• rating: 98.8%
• # reviews: 555
• city: Ontario, California

shipping engimou:

• carrier: FedEx
• class: Economy
• type: Fixed
• transit: 4-7 Days
• cost: $0.00
• service: FedEx Ground Economy

offer engimou:

• best offers: True
• availability: In Stock
• quantity: 5
• started: April 3, 2026
• sold: 0
• options: Ship-to-home

returns engimou:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

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