12 Bolt Differential Cover

Features:

• Fits Ford 10.25 and 10.5 inch axles
• Increases fluid capacity by 2.5 quarts
• Improves differential cooling and performance
• Cast aluminum construction for added strength
• Black powdercoat finish for corrosion resistance
• Built-in heat sink reduces operating temperatures
• Allows fluid changes without removing the cover
• Designed for optimal gear lubrication
• Includes all necessary hardware for install
• Compatible with 12-bolt Sterling axles
• Fits single rear wheel F250/F350 2x4 and 4x4

Protect Your Rear End And Drive With Confidence

If you want better protection, cooler temps, and easy maintenance for your Ford’s rear differential, the ATS 12 Bolt Differential Cover is one of the smartest upgrades you can make. Designed for 1986–2010 Ford F250 and F350 trucks with 10.25 or 10.5 inch differentials, this cover delivers a serious performance and reliability boost over your stock stamped steel unit. Made from durable cast aluminum and finished in a sleek black powdercoat, it doesn’t just look good, it holds an extra 2.5 quarts of fluid for better lubrication and cooling under load. Whether you're hauling heavy or just running hard, this cover helps your gear oil stay cooler, which leads to longer life and better protection. Plus, you’ll love the ease of servicing it, no more fighting with the old gasket mess just to change fluid. It’s a simple bolt-on mod with real-world benefits you’ll feel for years to come. If you're already under the truck, this is a no-brainer.

Engineered To Enhance Cooling Strength And Serviceability

The ATS 402-900-3068 Differential Cover is a precision-built upgrade for Ford Sterling 12-bolt axles, specifically those using 10.25 or 10.5 inch ring gears found in 1986 and newer F250, F350, E250, and E350 models. Its cast aluminum construction not only adds structural rigidity but also includes an integrated heat sink design that helps dissipate heat more efficiently than stock covers. This contributes to more stable gear oil temperatures and extended component life, especially during towing or heavy-duty applications. The cover increases fluid capacity by 2.5 quarts, allowing for improved oil flow and coverage across the differential’s moving parts. It also features an easy-access fill and drain port, which simplifies fluid changes without removing the cover. The black powdercoated finish helps resist corrosion while providing a clean, professional look. Sold as a complete kit, it includes all hardware necessary for installation and fits single rear wheel 2x4 and 4x4 applications. This is a functional and dependable solution built for performance and long-term reliability.

Fits: 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Ford F250/F350

Notes:

• Designed for Ford Sterling 12-bolt differentials with 10.25 or 10.5 inch ring gears
• Fits 1986–present Ford F250, F350, E250, and E350 models with single rear wheels
• Compatible with both 2x4 and 4x4 drivetrains
• Increases fluid capacity by 2.5 quarts over stock cover
• Cast aluminum construction offers added strength and heat dissipation
• Built-in heat sink design helps reduce oil temperatures under load
• Includes fill and drain ports for easy service without removing the cover
• Black powdercoat finish provides corrosion resistance and a clean appearance
• Sold as a complete kit with installation hardware included