Genuine Ford Expedition Screw and Lockwasher Assembly 391558-S102 - Ford (391558-S102)
- 391558s102
Genuine Ford Expedition Screw and Lockwasher Assembly 391558-S102 - Ford (391558-S102)
- 391558s102
- MSRP: $2.64
- Discount: $0.98 (37.1% off)
- Sale Price: $1.66
Packages shipped within the U.S. and Puerto Rico will automatically be protected from any loss, damage, and theft. Learn More
Details
- Brand:
- SKU:
391558-S102
- Positions: Left, Right
- Other Names:
Automatic Transmission Mount Bolt, Trans Mount Screw, Manual Transmission Mount Bolt, Screw
- Description:
This is the genuine Ford screw and lockwasher assembly, a fastener with an integral captive lockwasher used to secure transmission mount crossmembers, engine support insulators and related brackets and hangers across Expedition, Excursion and E-350, F-250, F-350 and F-450 Super Duty applications spanning the 4.6, 5.4, 6.2, 6.8, 7.3, 6.4 and 6.7 liter engines. The captive lockwasher acts together with the screw so the joint resists loosening under the vibration and load that drivetrain and exhaust mounts experience, maintaining clamp load without a separate loose washer. This assembly is commonly needed when an original is lost during a transmission, mount, crossmember or exhaust repair, or has corroded or had its threads damaged. It supersedes the earlier 391558-S100 and 391558-S103 parts. Fitting the correct screw and lockwasher restores a secure, vibration-resistant joint. For a proper repair, match the thread to the application, make sure the mating surfaces are clean so the integral washer seats flat, and tighten to the specification for the joint being assembled. Avoid reusing a fastener with damaged threads or a flattened, worn lockwasher, since it will not hold clamp load. Because the same fastener appears in several locations, confirm the application against the VIN before ordering. Genuine Ford construction ensures the assembly matches the original thread, integral washer design and strength class for a correct, durable joint.
- Replaces:
391558s100, 391558s103
Also Purchased
Vehicle Fitment
| Year | Make | Model | Body & Trim | Engine & Transmission |
|---|
Product Reviews
Ask Our Team
Ford
Maintain the performance and integrity of your vehicle with authentic OEM Ford parts. Our store offers a wide selection of factory-original parts designed to fit and function just like the components your vehicle came with from the factory. Whether you're working on a Ford truck, car, or SUV we have you covered with the quality parts you can trust.
Every part we offer meets strict manufacturer standards for quality, durability, and performance. From engine components to body parts, electrical systems, and accessories, using OEM parts ensures your vehicle stays running its best while protecting its value and warranty coverage.
Shop confidently knowing you’re getting the right part the first time. Explore our inventory of genuine Ford parts and enjoy hassle-free ordering, fast shipping, and expert support.
Select your make and model below to to shop from your vehicle's specific OEM catalog:
