10.25in/10.5 inch - 12 Sterling Heavy Duty Cast Aluminum Rear Diff Cover

Features:

• Fits 1990-2022 F250 and F350 models
• Fits 10.25 inch and 10.5 inch axles
• Heavy-duty cast aluminum construction
• Increased oil capacity for improved cooling
• Internal heat sinks enhance thermal control
• External cooling fins reduce oil temperatures
• Magnetic fill plug captures metal debris
• Neodymium magnet for superior filtration
• Helps maintain proper oil viscosity
• Extends differential and gear life
• Direct bolt-on installation design
• Backed by lifetime limited warranty

Keep Your Rear End Cool When The Work Gets Tough

If you are asking more from your truck than stock parts were ever designed to handle, upgrading your differential cover is a smart move that pays off quickly. The PPE Heavy Duty Cast Aluminum Rear Diff Cover is built for truck owners who tow heavy, haul often, or spend time off-road where heat becomes a real problem. With increased fluid capacity, your gear oil has more room to absorb and manage heat, which helps keep temperatures under control during long pulls or demanding conditions. Additionally, the built-in cooling fins give you extra airflow while driving, so your differential can shed heat more efficiently without any extra effort on your end. The magnetic fill plug adds another layer of protection by pulling harmful metal particles out of circulation before they can cause wear. It is the kind of upgrade that not only improves performance but also gives you confidence every time you hook up a trailer or hit the trail. Designed for 1990-2022 F250 and F350 trucks with 10.25 inch or 10.5 inch Sterling axles, it fits right in and gets to work immediately.

Engineered To Control Heat And Protect Critical Components

The PPE 338051100 rear differential cover is designed with both strength and thermal efficiency in mind, starting with its heavy-duty cast aluminum construction. This material not only adds durability but also plays a key role in dissipating heat away from the differential housing. Inside the cover, integrated heat sinks help draw heat out of the gear oil, while the external cooling fins increase surface area for improved airflow and temperature reduction. Furthermore, the increased oil capacity allows for better heat absorption, helping maintain consistent oil viscosity under load. This is especially important when towing or running larger tires, where added stress can quickly break down fluid performance. The included Neodymium magnetic fill plug works continuously to capture fine metal particles, reducing contamination and helping extend the life of gears and bearings. Installation is straightforward with a direct bolt-on design, making it an easy upgrade without the need for modifications. Backed by a lifetime limited warranty, this cover is built to deliver long-term reliability in demanding conditions.

Fitment: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 Ford F250/F350 Super Duty

Notes:

• Only fits 10.25 inch and 10.5 inch axles
• Not compatible with other axle types
• Ideal for towing, hauling, and off-road use
• Increased fluid capacity requires additional gear oil
• May require new gasket or sealant during install
• Magnetic plug should be cleaned during service
• Cast aluminum construction adds slight weight increase
• California Prop 65 warning applies to this product

Installation Instructions