11172-AC | PML Covers GM 9.5 12 Bolt Rear Differential Cover For Chevrolet Silverado 1500 / GMC Sierra 1500 | Natural As-Cast Finish

For 2019 and newer GM 1/2 ton trucks, SUVs and vans such as Silverado and Sierra 1500 with a 12 bolt rear differential cover. Cover includes magnetic drain plug and mounting hardware

Volume: 

0.3 quarts over stock, approximately

Number of Bolts: 

12

PML has designed and manufactured a rear differential covers for 2019 and newer Silverado and Sierra 1500 trucks and GM 1/2 ton SUVs and vans.

Some 2019 trucks and SUVs have this new differential and some have the same differential as the 2014 to 2018 trucks. The 12 bolt rear differential cover on 2014 and newer vehicles looks similar but is slightly smaller and the area around the fill hole is different. The gaskets are different also. See APPLICATIONS and SPECIFICATIONS sections for details.

The ring gear may be 9.5 or 9.75 and this new differential is probably made by GM, not American Axle (AAM).

Benefits

• PML designed this cover with fins, drain, and a shape similar to stock.

This differential is found on some 2019 and newer Silverado and Sierra 1500. Similar Cadillac, Chevrolet, and GMC SUVs, trucks and vans may also have this differential.

Always check your vehicle to verify configuration and clearance.

For the similar GM AAM 9.5, 9.76 12 bolt rear differential cover see PML Part Number 11129. PML Part Number 11129 works with 2014 to 2018 and some newer vehicles.

The OEM gasket part number is 84412728.

See the SPECIFICATIONS section for information on determining if your vehicle needs this cover or PML part number 11129.

Stock Cover and OEM Gasket Part Number

This PML differential cover, part number 11172, is designed to replace this stock cover

Always check your vehicle to verify configuration and clearance for a larger, aftermarket differential cover.

The OEM gasket part number is 84412728.

Comparing 2014 and Newer and 2019 and Newer Stock Covers

Area around and below fill hole is different. The bolt hole pattern and size is slightly different but it is easiest to see the difference around the fill/level check hole.

Drain, Level Check and Optional Temperature Sending Unit Machining

This PML cover has a drain hole on the bottom for easy servicing of differential. Fill/level check hole is on the side. Hardware is included with cover.

If you have an aftermarket temperature sending unit and gage to monitor fluid temperatures, there is a boss that can be machined for a 1/8 NPT hole for the temperature sending unit.

Included with Package with PML Differential Cover

With the differential cover, PML includes new mounting bolts and washers, a plug for the level check hole and a magnetic drain plug with a reuseable copper sealing washer.