How to diagnose and replace the Transfer Case Seal on a Mercury Cougar?

Oil leaks are due to worn of extension housing oil seal and bushing or the speedometer drive gear oil seal and O-ring. The general rule of thumb for these seals is that the repair is straightforward; in most cases, the seals can be changed without having to pull the transmission from the car. The extension housing oil seal is located at the rear of the transmission at the driveshaft connection. If leakage is suspected the vehicle must be raised off of the ground on jackstands securely. A leaking seal will cause transmission lubricant to be present on the front on the driveshaft and dripping at the rear of the transmission. In order to remove the oil seal one has to use the screwdriver or pry bar while being as careful as possible to avoid damaging the splines of the transmission output shaft. If removal is challenging, a further set of special oil seal removal tool might be needed. When fitting the new oil seal use a large pipe or deep socket as a drift to ensure that the oil seal is properly aligned and married to the bore. Before fitting the driveshaft back in, a thin grade of grease should be applied on the splines of the transmission output shaft and the outer diameter of the driveshaft sleeve yoke without putting any pressure on the new seal's lip. The speedometer cable with the driven gear housing will be situated on the side of the extension housing; examine for signs of transmission oil around the cable housing for signs of leakage of the seal and O-ring. Remove speedometer cable connector if available, and with a hook pry out the seal. Last, place a new O-ring in the driven gear housing then put back the driven gear housing with the cable assembly to the extension housing.

Genuine Mercury Cougar Transfer Case Seal

Transfer Case Output Shaft 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).

6 Transfer Case Seals found

View related parts
Mercury Cougar Oil Seal Assembly
Part Number: F5RZ-1177-AA
$7.12 MSRP: $11.62
You Save: $4.50 (39%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Seal Assy - Oil
- Replaced by: CV6Z-1S177-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1999-2002 Mercury Cougar | 4 Cyl 2.0L, 6 Cyl 2.5L | 4AT CD4E, 5MT
View related parts
Mercury Cougar Oil Seal Assembly
Part Number: E2DZ-7052-A
$15.39 MSRP: $22.50
You Save: $7.11 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal Assy - Oil; Extension Housing Seal
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1983-1993 Mercury Cougar | 4 Cyl 2.3L, 6 Cyl 3.8L, 8 Cyl 5.0L | 3AT C5, 4AT AOD, 5MT
- 1980-1981 Mercury Cougar | 4 Cyl 2.3L, 6 Cyl 3.3L, 8 Cyl 4.2L, 8 Cyl 5.0L | 3AT C3, 3AT C4, 4AT AOD, 4MT
View related parts
Mercury Cougar Oil Seal Assembly
Part Number: F7AZ-7052-A
$18.72 MSRP: $26.67
You Save: $7.95 (30%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Seal Assy - Oil
- Replaced by: 7W7Z-7052-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997 Mercury Cougar | 6 Cyl 3.8L, 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Cougar Oil Seal Assembly
Part Number: E9TZ-7052-A
$11.70 MSRP: $16.67
You Save: $4.97 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal Assy - Oil
- Replaced by: F6ZZ-7052-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1983-1989 Mercury Cougar | 4 Cyl 2.3L, 6 Cyl 3.8L, 8 Cyl 5.0L | 3AT C5, 4AT AOD, 5MT
View related parts
Mercury Cougar Oil Seal Assembly
Part Number: E8TZ-7052-C
$59.28 MSRP: $86.67
You Save: $27.39 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal Assembly - Oil; Extension Housing Seal
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1989-1990 Mercury Cougar | 6 Cyl 3.8L | 4AT AOD, 5MT
View related parts
Mercury Cougar Oil Seal Assembly
Part Number: E8TZ-7052-B
Product Specifications
- Other Name: Seal Assy - Oil
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1989-1990 Mercury Cougar | 6 Cyl 3.8L | 4AT AOD, 5MT

Mercury Cougar Transfer Case Seal

Mercury Cougar Transfer Case Seal preserves the drivetrain lubricant where it should be, preventing harmful fluid loss from the transfer gears while allowing for a consistent flow of power between the transmission and the driveshafts. This small round barrier is fitted around the output shaft. It has a tight rubber lip and metal casing which prevent leaks that could lower the fluid level, raise the gear temperatures, and cause slippage. The Transfer Case Seal will leak lubricant quickly if it is degraded. Hence, it is important. Regular visual inspections of the Transfer Case Seal area will provide each Mercury Cougar owner with early warning. Over the years, all Mercury Cougar models utilized a single-lip elastomer design, with only minor sizing modifications for different drivelines, maintaining the same operating principles. Whether it is an installation in a Mercury Cougar, the same pattern occurs every year. Lift the vehicle, remove and mark the driveshaft yoke, pull off the old seal without damaging the splines, clean the bore, grease and press in the new Transfer Case Seal, and then align and tighten the shaft. The new Transfer Case Seal, when properly seated, will provide a leak-free, cooler running unit for your Mercury Cougar.

We provide a wide range of Mercury Cougar Transfer Case Seal at the optimal prices. If you need Mercury Cougar Transfer Case 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.

Mercury Cougar Transfer Case Seal Parts Questions & Experts Answers

Oil Seal Assembly
E2DZ-7052-A
Q: How to diagnose and replace the Transfer Case Seal on a Mercury Cougar?
A:
Oil leaks are due to worn of extension housing oil seal and bushing or the speedometer drive gear oil seal and O-ring. The general rule of thumb for these seals is that the repair is straightforward; in most cases, the seals can be changed without having to pull the transmission from the car. The extension housing oil seal is located at the rear of the transmission at the driveshaft connection. If leakage is suspected the vehicle must be raised off of the ground on jackstands securely. A leaking seal will cause transmission lubricant to be present on the front on the driveshaft and dripping at the rear of the transmission. In order to remove the oil seal one has to use the screwdriver or pry bar while being as careful as possible to avoid damaging the splines of the transmission output shaft. If removal is challenging, a further set of special oil seal removal tool might be needed. When fitting the new oil seal use a large pipe or deep socket as a drift to ensure that the oil seal is properly aligned and married to the bore. Before fitting the driveshaft back in, a thin grade of grease should be applied on the splines of the transmission output shaft and the outer diameter of the driveshaft sleeve yoke without putting any pressure on the new seal's lip. The speedometer cable with the driven gear housing will be situated on the side of the extension housing; examine for signs of transmission oil around the cable housing for signs of leakage of the seal and O-ring. Remove speedometer cable connector if available, and with a hook pry out the seal. Last, place a new O-ring in the driven gear housing then put back the driven gear housing with the cable assembly to the extension housing.