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6mm Aerospace-Grade Aluminum. 100% Bolt-On. Heavy-Duty Drivetrain Defense.
Bulletproof Your F-150's TransmissionThe ASFIR 4X4 Transmission Skid Plate is engineered to protect one of the most expensive and vulnerable components of your 2019-2023 Ford F-150. While the factory "protection" is often nothing more than a thin fiberboard or plastic splash guard, ASFIR provides 6mm (1/4") of precision-cut aluminum to shield your drivetrain from disaster.
Manufactured and tested in the world's most demanding desert environments, this plate is designed to handle direct impacts from rocks, stumps, and trail debris while maintaining the ground clearance needed for technical off-roading.
Why ASFIR Protection:The Pain: Modern F-150 transmissions are housed in sensitive aluminum casings. A single high-centered rock can crack the case, leading to thousands in repairs and a ruined adventure.
The ASFIR Solution: High-strength, Laser-Cut Aluminum that is 40% lighter than steel, won't rust, and installs without any permanent vehicle modifications.
Key Features: The ASFIR Drivetrain Shield
This transmission skid plate is a 100% bolt-on assembly. It uses existing factory mounting points, ensuring your F-150 maintains its resale value and warranty.
Constructed from 1/4" laser-cut aluminum. It provides the impact resistance of steel without the heavy weight that causes suspension sag.
Integrated air slots prevent heat soak by maintaining airflow to the transmission, while drain holes allow mud and water to escape freely.
Internal stiffening ribs provide massive structural rigidity, preventing the plate from bowing or deforming under the weight of the vehicle.
Mounted directly to the chassis with heavy-duty, zinc-coated steel brackets to ensure maximum durability in wet or salty environments.
At only 17 lbs, this plate offers essential armor without significantly impacting your payload or fuel economy.
Tested in Global Off-Road TerrainASFIR 4x4 has been a global leader in vehicle armor for over 30 years. This transmission skid is engineered specifically for the Ford F-150 Crew Cab layout, ensuring a tight fit that hugs the drivetrain and provides a smooth surface to slide over obstacles.
17 lbs Lightweight Armor 6mm Plate Thickness 100% Bolt-On Fit Israel Origin
"The factory plastic cover on my 2021 F-150 was literally falling off after one winter. I replaced it with the ASFIR transmission skid and the fitment is perfect. It's super light but feels incredibly rigid. I've taken a few moderate hits on the trail and it just scratches the aluminum without bending it. Best peace of mind you can buy."
- Mark S., F-150 Overlander*Repair costs are estimates for late-model Ford F-150 components.*
| Feature | ASFIR Transmission Skid | Stock / Generic Steel |
|---|---|---|
| Weight | ✓ Lightweight (17 lbs) | ✗ Heavy (35+ lbs) |
| Corrosion | ✓ Rust-Proof Aluminum | ✗ Steel Will Rust |
| Installation | ✓ 100% Bolt-On | ✗ Often requires drilling |
| Design | ✓ Stiffening Ribs Pressed | Flat Sheet (Easily Bends) |
| Origin | ✓ Made in Israel | Imported Mass Market |
Precision designed for the 13th and 14th Gen Ford F-150 chassis. Fits the following specifications:
Years: 2019, 2020, 2021, 2022, 2023 Config: Crew Cab (SuperCrew) Engine: 5.0L GAS Automatic 4WDArmor Strategy: This plate is designed to integrate seamlessly with the ASFIR Engine, Transfer Case, and Fuel Tank skid plates for total 360° underbody immunity.
CA Residents: ⚠️ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
No. Aluminum does not rust like steel. It forms its own protective oxide layer, making it the ideal material for salty or snowy environments. Even the mounting brackets are zinc-coated for superior corrosion resistance.
No. The ASFIR Transmission Skid Plate is a 100% bolt-on system. It utilizes existing factory mounting holes in your vehicle's frame, meaning no drilling, cutting, or welding is required.
Loss of ground clearance is negligible (less than 1/4"). ASFIR designs their plates to hug the vehicle structure as closely as possible. Because the surface is smooth and flat, you gain the ability to "slide" over obstacles rather than getting hung up on mechanical components.
No. Strategic air vents are engineered into the plate to ensure proper airflow to the transmission housing, preventing heat build-up even during intense off-road crawling.
Yes. Since it is a bolt-on fit, most owners can complete the installation in 30-45 minutes using standard hand tools. We recommend a floor jack to help hold the plate in place during the initial bolting.
California Residents
Prop 65 Warning- Product may contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov
Proposition 65 is a California law passed in 1986. Its goals are to protect drinking water sources from toxic substances that may cause cancer and birth defects and to reduce or eliminate exposures to those chemicals generally, for example in consumer products, by requiring warnings in advance of those exposures.
The regulation requires the State of California to revise and republish yearly a list of chemicals known to the State of California to cause cancer or birth defects or other reproductive harm. The current list contains over 900 naturally occurring and synthetic chemicals. This regulation also requires manufacturers to place warnings on products that contain any of the chemicals listed by the State of California. No other states require warnings of this nature, and products with Prop 65 warning language are legal to sell in all states. Detailed information regarding requirements for compliance to the California Prop. 65 is can be found at: www.P65Warning.ca.gov
We get it. You've got a lot of choice when it comes to online retailers.
Here's why we think you should shop with us at ExtrailAuto.
The wait time was more than I anticipated even after seeing the notification of long lead times. I have to give them props for giving some compensation for the excessive wait time. Having slightly larger holes would help with fitment. Had a hard time getting the front drivers side away from the pinch weld. Eventually had to use washers to add space away from the truck. Need to update pictures and instalation video for the new sliders they are now making
All packing and shipment were great, everything was there. I had to contract out the install because of arthritis, it took them two hours and looks perfect. Zero wind noise at any speed 0 to 100.
Absolutely love my new rack and roam cases. Appreciate the Sherpa crew as well for their hospitality while the installation was taking place.
Fit and finish is excellent. Looks great on the Bronco. No whistling noise at all, some additional wind noise over 60mph but not much different than it was without the rack. Assembly was not too difficult. Instructions and videos could be a little better.
The quality and dedication of the team at Sherpa is evident from the very first interaction with them, and is further proven in the product itself. This rack is well engineered, easy to assemble, easy to adjust, and holds up incredibly well with no loosening or rattling or shifting (even after over 200 miles of driving on poorly maintained roads). Currently operating with approximately 180 pounds of gear mounted on the bed rack and no issues at all so far. I expected the vibration to work the bolts loose over time, but every time I check they're all still snug. My only regret is that I didn't pull the trigger and get this rack sooner.
First of all, the team at Sherpa is full of passion for adventure and that passion shows in the quality of their products. This roof rack looks incredible and surprised me with it's sturdiness. No loosening of hardware, even after weeks of driving. Currently holding approximately 80 pounds of gear for everyday driving, plus an additional 110 strapped on top during a camping trip (and I even stood on top of the entire loadout). No warping, bending, twisting, or slipping. The fact that this matches the bed rack perfectly in height is the icing on the cake. Easily serves as a tie off for a tarp, rain fly, hammock, or whatever you need. Perfect for modular campsite setup and quick teardown.
I bought the Sherpa Crestone rack for my 2024 4Runner TRD Pro. Incredibly well-made and excellent design. Spend the extra , to get best roof rack in the market. You won’t regret it.
This is our first roof rack that we are going to use to put a RRT (roof top tent) on for back country trips. Well-built product that came with all the nuts, bolts and washers to complete the installation. Took about 1-1/2 to 2 hours install the rack. You will another person to help place the racks on top of the Jeep for final install. Overall, a great, well-built American product
Install was super easy. The quality was great. Customer service was quick to respond to any issues! I’ve already been getting compliments on it and what brand it is. This will be great for camping this year!
This is on my tundra absolutely solid rack looks fantastic extremely modular, which is why I went this route. I can use the whole rack when traveling and over landing then rock the chase rack only when the rest is not in use, I actually use the recovery traction board mounts for my shower room set up, which works amazingly just relocated the board somewhere shown in picture keep innovating TUWAand I’ll keep purchasing.
Good looking cat shields made of stainless steel with cooling holes. Priced well, easy install, no issues. Would buy again.
Great service from their staff. Robert help me through all the process with a request I had, he responded all emails in a timely manner and provided great help.
We received it within 3 days and installed the same day. Great awning and very well made.
the tent is very nice, comfortable and roomy.
Following the instructions was fairly easy. Its better to have second person to set it up. I really like the tent and the support that from ExtrailAuto. Really recommeded! Thanks
