How to replace the differential seal on the pinion of a Ford Fusion?

Loosen the wheel lug nuts, raise the rear of the vehicle, and support it securely on jackstands while blocking the opposite set of wheels to prevent rolling. Remove the wheels and disconnect the driveshaft from the differential companion flange, fastening it out of the way. Mark the relationship of the pinion flange to the shaft and count the number of exposed threads on the shaft. A flange holding tool is needed to keep the companion flange from moving while loosening the self-locking pinion nut, although a chain wrench can also be used. Remove the pinion nut and withdraw the flange, using a two-jaw puller if necessary, avoiding any prying or hammering behind the flange or on the end of the pinion shaft. Pry out and discard the old seal, then lubricate the lips of the new seal and fill the space between the seal lips with wheel bearing grease before tapping it evenly into position with a seal installation tool or a large socket, ensuring it enters the housing squarely and to its full depth. Install the pinion flange, aligning it with the marks, and if necessary, tighten the pinion nut to draw the flange into place without hammering. Finally, install a new pinion nut and tighten it to the specified torque, completing the installation in reverse order of removal.

Genuine Ford Fusion Differential Seal

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).

3 Differential Seals found

View related parts
Ford Fusion Oil Seal Assembly
Part Number: 8G1Z-4N046-A
$21.95 MSRP: $32.08
You Save: $10.13 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal Assy - Oil
- Replaces: 3L8Z-4N046-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2012 Ford Fusion | 4 Cyl 2.3L, 4 Cyl 2.5L Duratec HE PFI, 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI, 6 Cyl 3.0L OHC Duratec, 6 Cyl 3.5L DOHC VCT SMPI | 5-Speed Automatic Transmission Mazda FNR5, 5-Speed Manual Transmission (G5M), 6-Speed Automatic Transaxle - AWF21, 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Manual Transmission Mazda G6M, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Ford Fusion Oil Seal Assembly
Part Number: 3L8Z-4N046-AA
$21.95 MSRP: $32.08
You Save: $10.13 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal Assy - Oil
- Replaced by: 8G1Z-4N046-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007 Ford Fusion | 4 Cyl 2.3L, 6 Cyl 3.0L DOHC EFI, 6 Cyl 3.5L DOHC VCT SMPI | 5-Speed Automatic Transmission Mazda FNR5, 5-Speed Manual Transmission (G5M), 6-Speed Automatic Transaxle - AWF21, 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Manual Transmission Mazda G6M, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Ford Fusion Oil Seal Assembly
Part Number: CV6Z-4676-A
$15.80 MSRP: $22.50
You Save: $6.70 (30%)
ADD TO CART
Product Specifications
- Other Name: Seal Assy - Oil; Front Seal, Oil Seal, Pinion Seal, Rear Seal
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2013-2020 Ford Fusion | 4 Cyl 1.5 L GAS, 4 Cyl 1.5L GTDI, 4 Cyl 1.6L PI TC ETHNL, 4 Cyl 2.0 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV), 4 Cyl 2.0L Duratec Hybrid (130kW), 4 Cyl 2.0L EcoBoost (200PS), 4 Cyl 2.0L EcoBoost (240PS), 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS, 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L Duratec FFV (125kW/170PS), 6 Cyl 2.7L | 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F55, 6-Speed Manual Transmission - B6, ECVT Auto Trans Power Split, Four-Wheel Drive (Full Time) (Left Hand Drive), Left Hand Drive

Ford Fusion Differential Seal

The Ford Fusion Differential Seal blocks dirt and keeps gear oil locked inside the differential while ensuring smooth cornering and longer gear life. The seal is located in the axle outlet of the casing housing where the rotating half-shaft meets the casing. Its tough synthetic rubber lip fits tightly around the shaft. Thus, under heat and pressure, lubricant cannot escape. A Differential Seal reduces noise. On early Ford Fusion models with an open differential, this seal preserves equal power flow so that each wheel receives equal power flow. Later Ford Fusion editions have changed to use limited slip units which rely on the Differential Seal to hold in the clutch-pack friction material and prevent contamination. When it comes to open styles, both wheels receive the same torque, although they can potentially spin uselessly on slick surfaces. The limited-slip style, on the other hand, channels more torque to the wheel with grip for better control. Thus, a sound Differential Seal becomes vital for both designs. As the Ford Fusion deteriorates, oil begins to leak or road grit sneaks in. With these leaks, the gears can start to wear and whine quickly. So it is advisable to check your Differential Seal regularly. Further, with a timely Differential Seal replacement on any Ford Fusion, you can prevent costly damage and confidently take turns with your vehicle.

We provide a wide range of Ford Fusion Differential Seal at the optimal prices. If you need Ford Fusion Differential Seal, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your doorstep with a fast delivery service.

Ford Fusion Differential Seal Parts Questions & Experts Answers

Oil Seal Assembly
8G1Z-4N046-A
Q: How to replace the differential seal on the pinion of a Ford Fusion?
A:
Loosen the wheel lug nuts, raise the rear of the vehicle, and support it securely on jackstands while blocking the opposite set of wheels to prevent rolling. Remove the wheels and disconnect the driveshaft from the differential companion flange, fastening it out of the way. Mark the relationship of the pinion flange to the shaft and count the number of exposed threads on the shaft. A flange holding tool is needed to keep the companion flange from moving while loosening the self-locking pinion nut, although a chain wrench can also be used. Remove the pinion nut and withdraw the flange, using a two-jaw puller if necessary, avoiding any prying or hammering behind the flange or on the end of the pinion shaft. Pry out and discard the old seal, then lubricate the lips of the new seal and fill the space between the seal lips with wheel bearing grease before tapping it evenly into position with a seal installation tool or a large socket, ensuring it enters the housing squarely and to its full depth. Install the pinion flange, aligning it with the marks, and if necessary, tighten the pinion nut to draw the flange into place without hammering. Finally, install a new pinion nut and tighten it to the specified torque, completing the installation in reverse order of removal.