Overview
The Alloy USA Boulder aluminum differential cover (part 11212) is a red powder coated cover for Dana 44 front and rear axles. It is cast from A356-T6 aluminum, which Alloy USA describes as strong for impact resistance, and it is designed to protect internal components from rocks and other off-road terrain while helping dissipate heat from the differential.
The cover is made for both the front and rear Dana 44 positions, so one part number covers either location. The sealing surface is precision machined, so gaskets or RTV sealant can be used for a leak-free seal. A magnetic drain plug collects metal particles that can build up in gear oil, and a dipstick bolt helps owners avoid under or overfilling the differential.
Key features
- A356-T6 cast aluminum body
- Precision machined sealing surface for gaskets or RTV
- Magnetic drain plug
- Dipstick bolt designed to help prevent under or overfilling
- Red powder coat finish
Front and rear cover use
A Dana 44 cover used on both front and rear positions protects the carrier, pinion and bearings from debris kicked up by the tires. Because the same cover fits either location, check the fill point and drain plug before the first drive in a new position so the oil level is right from the start.
Aluminum covers move heat away from the gears more readily than thin steel covers, but a dent on the flange can cause a leak. Before fitting, inspect the sealing face for burrs and clean it fully. Check for drips after the first few drives and recheck the bolts once the gasket or sealant has set.
- Check fill level before the first drive
- Inspect the flange for burrs
- Clean the sealing face thoroughly
- Look for drips after a few drives
Specifications
| Brand | Alloy USA |
|---|---|
| Part number | 11212 |
| UPC | 804314293284 |
| Position | Front and rear |
| Axle type | Dana 44 |
| Material | A356-T6 cast aluminum |
| Finish | Red powder coat |
| Oil capacity | Extra capacity |
| Fitment | Universal fit (as listed) |
Vehicle fitment
It is made for Dana 44 front and rear axles. Check it against your axle housing before installing.
Confirm your vehicle’s year, model and trim before ordering.
What’s included
The red aluminum differential cover with magnetic drain plug and dipstick bolt.






















