How to service the differential cover on a 9.75-inch ring gear on Lincoln Navigator?

You should begin differential service of a Ford 9.75-inch ring gear by turning off the air suspension switch in the right-hand kick panel to prevent air spring pressure changes while performing the tasks. Lift the vehicle and move the rear stabilizer bar together with the rear axle tracking bar to a safe location. The lubricant can be collected in a reusable container after removing 12 differential housing cover bolts and disconnecting the differential housing cover. Both the rear axle housing and differential housing cover require cleaning with oil removal before application to eliminate contaminants inside the rear axle. A continuous bead of Sealant D6AZ-19562-AA Clear Silicone Rubber or its equivalent which satisfies Ford specification ESB-M4G92-A must be applied to the differential housing cover. Apply the cover to the differential housing within a 15-minute timeframe after silicone placement because late installation requires fresh application of sealant. Sealant should completely cure through a waiting period of one hour before performing lubricant addition to the unit. The customer should tighten the bolt before filling the rear axle with specified lubricant and then add the filler plug. The procedure for Traction-Lok axles requires a prior addition of 118 ml (4 ounces) Ford Additive Friction Modifier C8AZ-19B546-A or equivalent to Ford specification EST-M2C1 18-A before filling the rear axle with lubricant. Finally, lower the vehicle.

How to Service and Repair the Differential Cover on Lincoln Town Car?

You should start by turning off air suspension power from the switch located at the LH side of the luggage compartment to protect against air spring inflation or deflation. Set the neutral gear and position the vehicle on a hoist. You should remove the differential housing cover by taking out its bolts and drain out the lubricant from the differential housing. Both differential housing and cover must receive clean machining before installation while their interior surfaces should get properly covered against contamination. Use a continuous run of silicone gasket and sealant along the differential housing cover before installing it within 15 minutes to prevent needing new sealant. The silicone needs a minimum of one hour cure time to ready the axle for lubricant insertion. Caulk the differential housing cover using silicone gasket and sealant before you bolt it into place and tighten all nuts beginning from the center of the pattern to reach 45 Nm (33 ft. lbs). Proceed to install the axle tag bolts and tighten them to 31 Nm (23 ft. lbs). The procedure for adding 118 ml (4 oz) of additive friction modifier requires a clean tool recess on the Traction-Lok(R) axles before affixing the axle fill plug. The rear axle needs 2.37 liters (5.0 pints) of lubricant which must be installed with the plug getting tightness of 30 Nm (22 ft. lbs). You need to reactivate the system and lower the vehicle when it has air suspension.

OEM Lincoln Differential Cover

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

15 Differential Covers found

View related parts
Lincoln Differential Cover, Rear Part Number: BL3Z-4033-C
$53.82 MSRP: $77.00
You Save: $23.18 (31%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Cover; Differential Cover, Rear; Axle Cover; Rear Cover
- Position: Rear
- Replaces: BL3Z-4033-A, F75Z-4033-AA
Fits the following Lincoln Models:
- Blackwood | 2002 | Base | 8 Cyl 5.4 L GAS
- Mark LT | 2006-2008 | Base | 8 Cyl 5.4 L GAS
- Navigator | 1998-2001 | Base | 8 Cyl 5.4 L GAS
View More
View related parts
Lincoln Axle Cover, Rear Part Number: F4TZ-4033-A
$37.79 MSRP: $55.00
You Save: $17.21 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Cover; Differential Cover, Rear; Rear Cover
- Position: Rear
Fits the following Lincoln Models:
- Mark LT | 2006-2008 | Base | 8 Cyl 5.4 L GAS
- Navigator | 1998-2001 | Base | 8 Cyl 5.4 L GAS
View related parts
Lincoln Differential Cover, Front Part Number: 8L1Z-4033-A
$27.37 MSRP: $39.83
You Save: $12.46 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cover; Differential Cover, Front; Axle Cover; Rear Cover
- Position: Front
- Replaces: 7L1Z-4033-B
Fits the following Lincoln Models:
- Mark LT | 2007-2008 | Base | 8 Cyl 5.4 L GAS
- Navigator | 2007-2024 | Base, Black Label, L, L Base, L Black Label, L Livery, L Luxury, L Reserve, L Select, L Ultimate, Luxury, Premiere, Reserve, Select, Ultimate | 6 Cyl 3.5 L GAS, 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS
View related parts
Lincoln Differential Cover, Rear Part Number: 7E5Z-4033-A
$83.27 MSRP: $128.15
You Save: $44.88 (36%)
ADD TO CART
Product Specifications
- Other Name: Cover - Rear Axle Housing; Differential Cover, Rear; Axle Cover; Rear Cover; Differential Assy Cover; Cover
- Position: Rear
Fits the following Lincoln Models:
- MKS | 2009-2016 | Base, EcoBoost | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
- MKT | 2010-2012 | Base, EcoBoost | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
- MKX | 2007-2015 | Base | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
- MKZ | 2007-2012 | Base | 6 Cyl 3.5 L GAS
View More
View related parts
Lincoln Differential Cover, Rear Part Number: 5L1Z-4033-A
$220.98 MSRP: $324.50
You Save: $103.52 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Cover - Rear Axle Housing; Differential Cover, Rear; Axle Cover; Rear Cover
- Position: Rear
- Replaces: 2L1Z-4033-AA
Fits the following Lincoln Models:
- Navigator | 2002-2017 | Base, L, L Luxury, L Reserve, L Select, L Ultimate, Luxury, Reserve, Select, Ultimate | 6 Cyl 3.5 L GAS, 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS
View related parts
Lincoln Differential Cover, Front Part Number: 2L1Z-4033-CA
$235.97 MSRP: $346.50
You Save: $110.53 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Cover; Differential Cover, Front, Rear; Axle Cover; Cover Assembly; Rear Cover
- Position: Front
- Replaces: F8AZ-4033-AA
Fits the following Lincoln Models:
- Mark LT | 2006 | Base | 8 Cyl 5.4 L GAS
- Navigator | 2003-2006 | Base, Luxury, Ultimate | 8 Cyl 5.4 L GAS
- Town Car | 1990-2004 | Anniversary, Base, Cartier, Cartier L, Cypress, Executive, Executive L, Executive Protection Series, Jack Nicklaus, Protection Series, Signature, Touring Edition, Tournament Edition, Ultimate, Ultimate L | 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS
View More
View related parts
Lincoln Axle Cover, Rear Part Number: 4W1Z-4033-BA
$114.39 MSRP: $166.50
You Save: $52.11 (32%)
ADD TO CART
Product Specifications
- Other Name: Cover; Differential Cover, Rear; Cover Assembly; Rear Cover
- Position: Rear
Fits the following Lincoln Models:
- Town Car | 2005-2011 | Designer Series, Executive, Executive L, Protection Series, Signature, Signature L, Signature Limited | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
View related parts
Lincoln Differential Cover, Front Part Number: F75Z-4033-BB
$128.50 MSRP: $174.87
You Save: $46.37 (27%)
ADD TO CART
Product Specifications
- Other Name: Cover; Differential Cover, Front; Axle Cover; Rear Cover
- Manufacturer Note: Cover, TE/TN
- Position: Front
- Replaces: F65Z-4033-AA
Fits the following Lincoln Models:
- Navigator | 1998-2002 | Base | 8 Cyl 5.4 L GAS
View related parts
Lincoln Differential Cover, Rear Part Number: 2L1Z-4033-BA
$121.65 MSRP: $165.55
You Save: $43.90 (27%)
ADD TO CART
Product Specifications
- Other Name: Cover - Rear Axle Housing; Differential Cover, Rear; Axle Cover; Rear Cover
- Manufacturer Note: Cover asy. (housing) - aluminum - includes 390943-S100 plug
- Position: Rear
Fits the following Lincoln Models:
- Navigator | 2002 | Base | 8 Cyl 5.4 L GAS
View related parts
Lincoln Axle Cover, Rear Part Number: LC3Z-4033-A
$69.20 MSRP: $106.50
You Save: $37.30 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Cover; Differential Cover, Rear; Rear Cover
- Position: Rear
Fits the following Lincoln Models:
- Mark LT | 2006-2008 | Base | 8 Cyl 5.4 L GAS
View related parts
Lincoln Axle Cover, Rear Part Number: HL1Z-4033-A
$272.17 MSRP: $399.67
You Save: $127.50 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Cover - Rear Axle Housing; Differential Cover, Rear; Rear Cover
- Position: Rear
Fits the following Lincoln Models:
- Navigator | 2018-2024 | Base, Black Label, L Base, L Black Label, L Livery, L Reserve, L Select, Premiere, Reserve, Select | 6 Cyl 3.5 L GAS
View related parts
Lincoln Axle Cover, Rear Part Number: L1MZ-4033-C
$111.55 MSRP: $171.67
You Save: $60.12 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Cover - Rear Axle Housing; Differential Cover, Rear; Rear Cover; Cover
- Position: Rear
- Replaces: L1MZ-4033-A
Fits the following Lincoln Models:
- Aviator | 2020-2023 | Base, Black Label, Black Label Grand Touring, Grand Touring, Livery, Reserve | 6 Cyl 3.0 L GAS, 6 Cyl 3.0 L PLUG-IN HYBRID EV-GAS (PHEV)
View related parts
Lincoln Axle Cover, Rear Part Number: XR3Z-4033-AA
Product Specifications
- Other Name: Cover - Rear Axle Housing
- Manufacturer Note: Cobra (IRS)
- Position: Rear
Fits the following Lincoln Models:
- Mark VIII | 1994-1998 | Anniversary, Base, LSC | 8 Cyl 4.6 L GAS
View related parts
Lincoln Axle Cover, Rear Part Number: 3W4Z-4033-CA
Product Specifications
- Other Name: Cover - Rear Axle Housing; Differential Cover, Rear; Cover Assembly
- Position: Rear
Fits the following Lincoln Models:
- LS | 2003-2006 | Appearance, Base, LSE, Luxury, Premium, Sport, Ultimate | 6 Cyl 3.0 L GAS, 8 Cyl 3.9 L GAS
View related parts
Lincoln Axle Cover, Rear Part Number: XW4Z-4033-BA
Product Specifications
- Other Name: Cover - Rear Axle Housing; Differential Cover, Rear; Cover Assembly
- Position: Rear
Fits the following Lincoln Models:
- LS | 2000-2002 | Base, LSE | 6 Cyl 3.0 L GAS, 8 Cyl 3.9 L GAS

Lincoln Differential Cover

If you own Lincoln and want to keep it in top shape, choosing OEM Differential Cover is a smart move. They are precisely engineered and follow strict factory standards. They are made in advanced facilities that use cutting edge technology. Each part goes through thorough testing to confirm strength and safety, so you can trust it. FordPartsDeal.com gives you genuine Lincoln Differential Cover at some of the affordable online prices without cutting quality. Every OEM Lincoln part includes the manufacturer's warranty, easy returns, and super-fast delivery. So why wait? Shop now and get your vehicle back to peak condition.

Lincoln Differential Cover is one that keeps the lubricant closed and allows the rear gears to freely turn. Lincoln adopts the Quiet Flight concept, where cabins are loaded with hush materials and technology that takes wind and road noise miles away and the pilots comfortably sit in seats that fit them like gloves. Lincoln equips all of its existing rides with Co-Pilot360 features such as lane keeping, blind spot alerts, automatic high beams, and parking assist to ensure an inexperienced user feels at ease and experienced users remain alert. Lincoln also unveils ActiveGlide, which enables the car to navigate the highway lanes to such a degree that long trips are reduced to short ones and the stress levels turn into nothing but it is the clear digital displays that communicate clear information in one look. Differential Cover protects the housing with heavy steel or aluminum that shakes off the rocks and gravel impacts on the rough pavements or dirt. Differential Cover is clamped on, keeps the dirt out of the ring and pinion and prevents the swirling of the differential by sealing the leaks. Lincoln matches every Differential Cover with intelligent venting that equalizes the amount of heat, maintains the constant pressure of the fluid, and extends the life of the gears as the driver transports heavy provisions or travels at high velocity. Differential Cover also has chrome or powder black finishes that resist rust, look the part, and resist years of rain, salt, and grime on the road without pleading to change.

Lincoln Differential Cover Parts and Q&A

Differential Cover, Rear
BL3Z-4033-C
Q: How to service the differential cover on a 9.75-inch ring gear on Lincoln Navigator?
A:
You should begin differential service of a Ford 9.75-inch ring gear by turning off the air suspension switch in the right-hand kick panel to prevent air spring pressure changes while performing the tasks. Lift the vehicle and move the rear stabilizer bar together with the rear axle tracking bar to a safe location. The lubricant can be collected in a reusable container after removing 12 differential housing cover bolts and disconnecting the differential housing cover. Both the rear axle housing and differential housing cover require cleaning with oil removal before application to eliminate contaminants inside the rear axle. A continuous bead of Sealant D6AZ-19562-AA Clear Silicone Rubber or its equivalent which satisfies Ford specification ESB-M4G92-A must be applied to the differential housing cover. Apply the cover to the differential housing within a 15-minute timeframe after silicone placement because late installation requires fresh application of sealant. Sealant should completely cure through a waiting period of one hour before performing lubricant addition to the unit. The customer should tighten the bolt before filling the rear axle with specified lubricant and then add the filler plug. The procedure for Traction-Lok axles requires a prior addition of 118 ml (4 ounces) Ford Additive Friction Modifier C8AZ-19B546-A or equivalent to Ford specification EST-M2C1 18-A before filling the rear axle with lubricant. Finally, lower the vehicle.
Axle Cover, Rear
4W1Z-4033-BA
Q: How to Service and Repair the Differential Cover on Lincoln Town Car?
A:
You should start by turning off air suspension power from the switch located at the LH side of the luggage compartment to protect against air spring inflation or deflation. Set the neutral gear and position the vehicle on a hoist. You should remove the differential housing cover by taking out its bolts and drain out the lubricant from the differential housing. Both differential housing and cover must receive clean machining before installation while their interior surfaces should get properly covered against contamination. Use a continuous run of silicone gasket and sealant along the differential housing cover before installing it within 15 minutes to prevent needing new sealant. The silicone needs a minimum of one hour cure time to ready the axle for lubricant insertion. Caulk the differential housing cover using silicone gasket and sealant before you bolt it into place and tighten all nuts beginning from the center of the pattern to reach 45 Nm (33 ft. lbs). Proceed to install the axle tag bolts and tighten them to 31 Nm (23 ft. lbs). The procedure for adding 118 ml (4 oz) of additive friction modifier requires a clean tool recess on the Traction-Lok(R) axles before affixing the axle fill plug. The rear axle needs 2.37 liters (5.0 pints) of lubricant which must be installed with the plug getting tightness of 30 Nm (22 ft. lbs). You need to reactivate the system and lower the vehicle when it has air suspension.