A Guide to the Automatic Transmission Mount for the 2004-2008 Chrysler Crossfire
If you're feeling a vibration or hearing a clunk from your Crossfire, your transmission mount may be the cause.
- The Crossfire uses a Mercedes-Benz transmission mount; all 2004-2008 models use the same part.
- Key failure symptoms are vibrations under acceleration and clunking noises when shifting.
- Replacement is an easy DIY job that takes less than an hour for most home mechanics.
- For best results and longevity, consider a premium aftermarket brand like Febi or an OEM Mercedes part.
Signs of a Failing Transmission Mount
A transmission mount wears out over time from constant use and exposure to the elements. When it fails, the rubber cracks or collapses, and it can no longer support the transmission properly or absorb vibrations. You might notice one or more of these symptoms:
- Vibrations: This is the most common sign. You may feel a new vibration through the floor, your seat, or the steering wheel, especially when accelerating. Crossfire owners sometimes describe this as a "stutter" when the engine is under load, like going uphill.
- Clunking Noises: You might hear a clunking or banging sound when you shift into gear, accelerate hard, or brake suddenly. This is the sound of the transmission moving around too much and hitting the car's frame.
- Excessive Movement: A worn mount allows the engine and transmission to move or twist more than they should. In some cases, you might even see the gear selector lever move during hard acceleration, which can be a sign of a bad transmission or engine mount.
Visual Inspection
You can often see if a mount has failed. A bad mount will look saggy or collapsed. The center bolt that holds the transmission will no longer be in the middle of the mount's housing; it will have dropped toward the bottom.
Choosing the Right Aftermarket Mount
Since your Crossfire is built on a Mercedes-Benz platform, you have a few good options for a replacement mount. The original part is made by Mercedes-Benz, but several aftermarket brands offer direct-fit replacements.
Brand Quality Tiers for Your Crossfire:
- Premium Aftermarket (OEM-Equivalent): Brands like Febi are often considered to be on par with original equipment for German vehicles. They focus on meeting the original specifications for fit and material quality, making them a reliable choice for a smooth, factory-like feel.
- Standard Aftermarket: Brands like Westar, DEA, and Pioneer offer a good balance of quality and value. They are designed to be affordable replacements that get the job done. While they may not have the same longevity as an OEM or premium part, they are a popular choice for budget-conscious repairs.
- Value-Oriented / Mixed Reviews: URO Parts is another option, often priced very competitively. However, owner experiences with their rubber products can be mixed. URO does offer a "URO Premium" line which claims to have improved design and materials, backed by a longer warranty.
A Note on OEM Parts
The genuine part is available from Chrysler (Part No. 68071142AA) or Mercedes-Benz (Part No. A2122400418). They are the same part. Buying the Mercedes-branded part is sometimes cheaper and will fit perfectly, though it may have extra mounting holes for other Mercedes models.
Replacement Cost
Replacing the transmission mount is a straightforward job. The part itself is not expensive, and labor time is low. Many owners choose to do it themselves.
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Mount | $30 - $49 |
| New OEM Mount (Chrysler/Mercedes) | $85 - $145 |
| Shop Labor | $50 - $100 |
Frequently Asked Questions (FAQ)
Can I replace the Crossfire transmission mount myself?
Yes, this is a very DIY-friendly job. The process involves safely raising the front of the car, supporting the transmission pan with a jack and a block of wood, unbolting the old mount from the crossmember and transmission, and installing the new one. It requires basic hand tools and can typically be done in under an hour. The four mounting bolts should be tightened to 30 ft/lbs.
Should I replace my engine mounts at the same time?
It is highly recommended. The engine and transmission mounts work together to support the drivetrain. If the transmission mount has failed, the engine mounts have been under extra stress and are likely worn as well. Replacing all three (two engine, one transmission) at once ensures a smooth ride and prevents the new mount from failing prematurely.
Is there a recall on the Crossfire transmission mount?
No, there are no recalls or technical service bulletins (TSBs) from Chrysler or NHTSA specifically for the automatic transmission mount on the 2004-2008 Crossfire.
Is the SRT-6 transmission mount different from the base model?
No, the automatic transmission mount is the same part for all Crossfire models, including the base, Limited, and the supercharged SRT-6.
Technical Specifications
OEM Part Numbers: 68071142AA A2122400418 5101455AA 5101457AA
The mount is a single assembly made of a metal housing and a rubber insulator that bolts to the transmission and the vehicle's crossmember. It is not fluid-filled like some engine mounts.
We Have This Part in Stock
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.
- Chrysler Crossfire: