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6mm Heavy-Duty Aluminum. 100% Bolt-On. Professional Trail Defense.
Shield Your Drivetrain's Most Vulnerable PointOn any Subaru hitting the trail, the rear differential is one of the lowest and most exposed components. While your Symmetrical AWD takes you further into the wild, a single high-centered rock or a jagged stump can easily crack the differential housing, leading to catastrophic oil loss and an expensive recovery mission.
The ASFIR 4X4 Rear Differential Protector is precision-engineered in Israel from high-quality 1/4" (6 mm) laser-cut aluminum. It provides a lightweight yet industrial-strength barrier that slides over obstacles rather than snagging them, ensuring your drivetrain remains sealed and safe.
The Problem & The Solution:The Pain: Factory protection for the rear diff is non-existent. A punctured housing or bent mounting flange can result in a $3,000+ repair and leave you stranded.
The ASFIR Solution: We provide a 100% Bolt-On shield reinforced with stiffening ribs and zinc-coated steel brackets to handle direct vertical impacts and horizontal slides.
Key Features: ASFIR Drivetrain Armor
The protector uses a 100% bolt-on assembly. No permanent modifications to your Subaru means your warranty and resale value stay intact.
Twice the thickness of many competitors, our 1/4" (6mm) aluminum provides extreme impact resistance while weighing only 9 lbs.
Internal ribs are pressed into the aluminum to maximize rigidity, ensuring the plate doesn't flex into the differential during heavy hits.
Marine-grade aluminum combined with zinc-coated steel brackets ensures a lifetime of protection, even in salt-heavy winter conditions.
Laser-cut drain holes and ventilation slots allow mud, water, and trail debris to escape easily while maintaining optimal cooling airflow.
Engineered to fit multiple Subaru platforms (Forester, Crosstrek, Outback) with a single, precise chassis-mounting solution.
Tested in the World's Toughest DesertsASFIR 4X4 has been building off-road armor for over 30 years. Developed and tested in the rocky landscapes of Israel, this rear differential protector is more than just a piece of metal—it's a precision instrument. At just 9 lbs, it adds virtually zero strain to your drivetrain while providing a smooth, "skidding" surface to navigate through deep ruts and rock gardens.
9 lbs Lightweight 6mm Alum Thickness 100% Bolt-On Fit Israel Proudly Made
"The peace of mind is instant. I've heard the 'clunk' of rocks hitting my diff before, and it always made me wince. I installed the ASFIR diff protector on my Crosstrek in about 20 minutes. It's solid as a rock and looks great. Essential for any Subaru owner who actually uses their X-Mode."
- Mark S., Subaru XV Explorer*Repair costs are estimates. Does not include towing or lost adventure time.
| Feature | ASFIR Diff Protector | Generic Plates |
|---|---|---|
| Thickness | ✓ 6mm (1/4") Aluminum | ✗ Often 3mm or 4mm |
| Mounting | ✓ Zinc-Coated Steel Brackets | Standard Steel Brackets |
| Weight | ✓ Lightweight (9 lbs) | ✗ Heavy Steel Alternatives |
| Fitment | ✓ Multi-Subaru Platform | Single Vehicle Only |
| Origin | ✓ Made in Israel | Imported |
Designed specifically to bolt onto the rear chassis of the following Subaru models:
Subaru Crosstrek / XV: 2013 - 2017 (2.0L Petrol) Subaru Forester: 2013 - 2018 (2.0L / 2.5L Petrol) Subaru Outback: 2015 - 2018 (2.5L Petrol)Note: Fits both Manual and Automatic CVT transmission models. Ideal as the finishing piece to ASFIR's complete underbody armor set.
CA Residents: ⚠️ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
No. ASFIR designs their armor with integrated ventilation slots. These air vents ensure that fresh air continues to circulate around the differential casing while you drive, maintaining safe operating temperatures even during heavy use.
No. The ASFIR protector is a 100% bolt-on system. It utilizes existing chassis mounting points, meaning you can install it at home with basic hand tools in under 30 minutes.
Yes. The protector is designed with drainage and access ports that allow for serviceability. However, since the plate is lightweight and bolt-on, many owners prefer to drop the plate for a completely mess-free service, which only takes a few minutes.
This specific SKU is verified for the 2.0L and 2.5L gasoline models listed in the fitment table. Hybrid models may have different rear subframes or battery cooling components; please contact us to verify fitment for Hybrid trims.
Minimal. The protector is vehicle-specific and contoured to sit as close to the differential as possible. By providing a flat sliding surface, it actually prevents you from getting "hung up" on obstacles that would otherwise catch the rough surface of the differential.
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
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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
