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Differential Covers

Shop Pure Diesel Power today for all of your differential covers for your GM 9.5, 10.5, 11.5, 14 bolt axles and 8.5, 8 5/8 10 bolt axles. We are proud to provide diesel mechanics and enthusiasts with the necessary performance parts and accessories to make them happy.

From AFE AFE

aFe Power's new rear differential cover brings performance engineering to the protection of your axle's differential. This differential cover is constructed...

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From AFE AFE

aFe Power's new rear differential cover brings performance engineering to the protection of your  trucks rear-end.  This differential cover has a 5 quart lube capacity (factory cover holds 4 quarts) at the factory line , a magnetic drain plug, a magnetic tipped fill plug for maximum rear-end protection.  Built-in internal and external fins transfer heat from the fluid to the outside air for maximum cooling.  aFe has also designed a large oil level site glass  with calibration plug set to the factory fluid level to eliminate overfilling.   This differential cover is constructed out of durable die-cast A380-T6 aluminum with reinforced ribs and a wrinkle black powder coating with machined fins for maximum strength and styling.   This cover fits the AA-14-11.5 axles. This cover uses an O-ring mounted in the machined channel for a leak-free seal.

When it comes to engineering for power, performance, protection and value,  aFe Power is the only choice.

AFE:  46-70011

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From Mag Hytec Mag Hytec

  • GM/Chevy Sierra/Silverado Mag Hytec Differential Cover 
  • 2001 & Newer: 2500 & 3500
  • Full Floating Axle
  • Duramax & 8.1 Liter Gas
Fits '03 to 2012 GM and Dodge One Ton Trucks Rear
Holds 2 Extra Quarts Of Oil(5 Total)
Overall Height Is 3 5/8"
Finned aircraft aluminum housing for improved cooling
Offers easy routine maintenance without removing the differential cover
Dipstick with magnetic insert

Mag-Hytec’s heavy duty differential covers and transmission pans provide increased lubricant and cooling capacity for hard working recreational and service vehicles. Mag-Hytec covers and pans set your vehicle apart in both aesthetics and function – cast in A356-T6 aluminum and texture powder coated black with machined cooling fins. Magnetic drain plugs trap worn gear material promoting fluid integrity. Each unit is fitted with ARP 568 O-rings for superior sealing. All hardware is 303 stainless steel, in most applications no gasket or sealant is required, and all Mag-Hytec parts are covered by a lifetime limited warranty. Depend on Mag-Hytec – when you’re pulling a heavy load.

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