SKU #: PPE-338051800 MPN #: 338051800

PPE Heavy-Duty Cast Aluminum Rear Differential Cover for Dana M300 17-26 Ford Super Duty

$296.99

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Ford Super Duty Dana M300 14-bolt differential cover with fins and magnetic drain plug detail

Brushed aluminum finish Ford Super Duty Dana M300 diff cover with cooling fins close-up

Raw aluminum finish Ford Super Duty rear differential cover heavy-duty cast aluminum design

Black finish Ford Super Duty Dana M300 aluminum differential cover installed on truck axle

Ford Super Duty differential cover showing premium cast aluminum construction

Description

The Ford Super Duty Dana M300 14-bolt heavy-duty cast aluminum rear differential cover is designed to help your truck run cooler, stronger, and more reliably under heavy use. Whether you’re towing, hauling, or putting miles on your Super Duty, this upgraded cover helps manage heat by increasing fluid capacity by 0.8 quarts and using deep external cooling fins to pull heat away more efficiently. That means more stable differential temperatures, better fluid protection, and improved long-term durability for your gears and bearings. Inside the cover, built-in windage scrapers help control oil movement to reduce unnecessary churning. This lowers heat buildup and fluid aeration, which can improve efficiency and give the drivetrain a smoother, more consistent feel under load. The external fin design and internal structure also work together to reinforce the housing, adding strength and impact resistance for demanding driving conditions. Built from high-strength A356.0-T6 cast aluminum, the cover is precision-engineered for a solid fit and long-lasting performance. Cast-in reinforcement points add extra rigidity, while stainless steel magnetic plugs help capture metal particles in the oil to protect internal components over time. With factory-level fill positioning and leak-resistant Viton O-ring seals, installation is simple, and maintenance stays hassle-free, making this a strong upgrade for both protection and peace of mind.

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The Ford Super Duty Dana M300 14-bolt heavy-duty cast aluminum rear differential cover is designed to help your truck run cooler, stronger, and more reliably under heavy use. Whether you’re towing, hauling, or putting miles on your Super Duty, this upgraded cover helps manage heat by increasing fluid capacity by 0.8 quarts and using deep external cooling fins to pull heat away more efficiently. That means more stable differential temperatures, better fluid protection, and improved long-term durability for your gears and bearings.

Inside the cover, built-in windage scrapers help control oil movement to reduce unnecessary churning. This lowers heat buildup and fluid aeration, which can improve efficiency and give the drivetrain a smoother, more consistent feel under load. The external fin design and internal structure also work together to reinforce the housing, adding strength and impact resistance for demanding driving conditions.

Built from high-strength A356.0-T6 cast aluminum, the cover is precision-engineered for a solid fit and long-lasting performance. Cast-in reinforcement points add extra rigidity, while stainless steel magnetic plugs help capture metal particles in the oil to protect internal components over time. With factory-level fill positioning and leak-resistant Viton O-ring seals, installation is simple, and maintenance stays hassle-free, making this a strong upgrade for both protection and peace of mind.

Vehicle Fitment

2017-2026 Ford F-350/F-450/F-550 Super Duty DRW for Dana M300

WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov

AVAILABLE FINISH OPTIONS:

Black Powdercoat – Durable corrosion-resistant finish with a stealth OEM+ appearance
Raw Cast Aluminum – Natural aluminum finish ideal for custom coating or polished builds
Polished Aluminum – Bright show-quality finish for a high-end appearance

FEATURES & BENEFITS:

Constructed from premium A356.0-T6 heat-treated cast aluminum alloy for superior strength and durability
Precision permanent-mold casting ensures consistent fitment and high dimensional accuracy
Increases differential fluid capacity by 0.8 quart to improve cooling performance and extend gear life
Half-inch external cooling fins help reduce fluid temperatures and increase impact resistance
Internal windage scrapers reduce fluid churning to minimize heat buildup and parasitic power loss
Cross-bracing structure formed by internal scrapers and external fins improves overall housing rigidity
Cast-in gussets reinforce the flange area for additional strength under heavy loads
Magnetic stainless steel fill and drain plugs capture harmful metal particles to protect internal components
Viton O-ring sealed service plugs provide reliable leak protection in high-temperature conditions

FITMENT NOTE:

Fits 2017–2025 Ford Super Duty rear axles equipped with the Dana M300 14-bolt differential
Does NOT fit Dana M275 or Dana M315 axles
Verify axle model or ring gear size before ordering, as these covers appear similar but are not interchangeable

About PPE (Pacific Performance Eng.)

Browse PPE Diesel Parts Online by Make, Model, and Year. Originally founded in 1985, Pacific Performance Engineering (PPE) is leading the way in the progression of diesel performance. Their roots started them in the diesel performance industry installing other manufacturers kits and components, which led to the release of their original product, the Duramaximizer, in 2001 to improve upon the power and efficiency of the LB7 Duramax, and is still in use today. Today, they are known for manufacturing dual CP3 kits, their line of Xcelerator programmers for numerous applications, upgraded oil pans, and nearly anything you can think of to improve the power and extend the life of your Duramax, Cummins or Powerstroke.