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SKU: WCF100114-GW
Wehrli Gloss White Rear Differential Cover 2020-2025 GM Duramax & 2019-2024 Ram HD Trucks
The differential cover for 2020-2025 GM Duramax HD and 2019-2024 Ram 2500/3500 trucks. Engineered by Wehrli Custom Fabrication, a trusted name in high-performance diesel upgrades, this fabricated aluminum differential cover outperforms competitors like Banks, Mag-Hytec, and AAM with superior craftsmanship, enhanced fluid capacity, and unmatched aesthetics. Designed for enthusiasts who demand the best, the WCF100114-GW is the top choice for off-road adventurers, heavy-duty haulers, and diesel performance aficionados.
Why Wehrli
- Durability: Precision laser-cut, CNC-bent, and fully TIG-welded aluminum construction ensures exceptional strength, protecting your rear axle from rocks, debris, and extreme conditions—perfect for off-roading or heavy towing.
- Fluid Capacity: Increases rear differential fluid volume (up to ~10 pints vs. stock), reducing gear wear, extending component life, and maintaining optimal performance under high-stress conditions.
- Cooling: Unlike flat-back covers, the WCF100114-GW’s robust design promotes heat dissipation, keeping your differential cooler during intense workloads compared to OEM or competitors.
- Gloss White Finish: The signature powder-coated gloss white finish not only resists corrosion but also adds a striking, custom look that sets your truck apart. Choose from WCFab’s array of colors for a personalized touch.
- Maintenance: Features a 1" fill port with a 5/8" Allen plug and stainless steel hardware for quick, mess-free fluid changes—no RTV sealant required, unlike stock covers.
- Made in the USA: Backed by Wehrli’s commitment to quality, every cover is crafted with meticulous attention to detail, ensuring perfect fitment and long-lasting performance.
Included
- Fabricated Aluminum Differential Cover: Precision-engineered for AAM 12" (GM) and AAM 11.5"/12" (Ram) rear axles.
- Stainless Steel Hardware: 14 high-strength mounting bolts for secure installation.
- 1" Fill Port with 5/8" Allen Plug: Simplifies fluid checks and changes.
- Gloss White Powder Coat Finish: Durable, corrosion-resistant, and visually stunning.
- No Gasket or Seal Required: Designed for a dry-mount fit, eliminating messy RTV cleanup.
- Box Dimensions & Weight: 16.2" x 15.9" x 10.7", 5.7 lbs, shipped in a dedicated box for safe delivery.
Note: Optional Premium Bolt Kit (WCF100217) with 12-point ARP stainless steel fasteners available for an upgraded finish.
Part Numbers
- Wehrli Part Number: WCF100114-GW (Gloss White)
- Replaces GM Part Number: 84757353
- Replaces MOPAR Part Numbers: 68458937AB, 68458937AA
Fitment
- Chevrolet Silverado 2500 HD (2020-2025)
- Trims: Custom, High Country, LT, LTZ, WT (2020-2025); ZR2 (2024-2025)
- Engines: V8 6.6L Duramax (6571cc or 6599cc)
- Chevrolet Silverado 3500 HD (2020-2025)
- Trims: High Country, LT, LTZ, WT
- Engines: V8 6.6L Duramax (6571cc or 6599cc)
- GMC Sierra 2500 HD (2020-2025)
- Trims: AT4, Denali, SLE, SLT (2020-2025); Base (2020-2021); Pro (2022-2025); AT4X, Denali Ultimate (2024-2025)
- Engines: V8 6.6L Duramax (6571cc or 6599cc)
- GMC Sierra 3500 HD (2020-2025)
- Trims: AT4, Denali, SLE, SLT (2020-2025); Base (2020-2021); Pro (2022-2025); Denali Ultimate (2024-2025)
- Engines: V8 6.6L Duramax (6571cc or 6599cc)
- Ram 2500 (2019-2024)
- Trims: Big Horn, Laramie, Limited, Lone Star, Tradesman (2019-2024); Laramie Longhorn (2019-2021); Limited Longhorn, Power Wagon, Rebel, Special Service (2021-2024)
- Engines: L6 Cummins Diesel, V8 6.4L HEMI (6424cc)
- Ram 3500 (2019-2024)
- Trims: Big Horn, Laramie, Limited, Tradesman (2019-2024); Laramie Longhorn (2019-2020); Limited Longhorn, Lone Star, SLT, Special Service (2019-2024)
- Engines: L6 Cummins Diesel, V8 6.4L HEMI (6424cc)
Why It’s the Best Choice
- Versus Banks Ram-Air: While Banks offers cooling fins, Wehrli’s increased fluid capacity and simpler dry-mount design reduce maintenance hassle and provide better protection for heavy-duty use.
- Versus Mag-Hytec: Mag-Hytec covers increase fluid volume but lack the custom finish options and precision TIG-welded construction of Wehrli, which ensures a perfect fit and premium aesthetic.
- Versus OEM/AAM: Stock covers offer minimal fluid capacity and no drain plug, making maintenance tedious. Wehrli’s cover adds capacity, durability, and style, all while simplifying service.
- Installation: Bolts directly onto AAM 12" (GM) or 11.5"/12" (Ram) rear axles with included stainless hardware. Requires basic tools and a torque wrench (12-16 ft-lbs recommended).
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