How to renew a faulty Automatic Transmission Seal in the rear of the transmission extension housing without removing the transmission on a BMW 2002?

Provided the transmission fluid level is correct, any leaks from the rear of the transmission extension housing must be due to a faulty oil seal. This can be renewed without removing the transmission. Disconnect the exhaust pipe from the rear of the transmission. Disconnect the front of the propeller shaft from the transmission coupling flange. Disconnect the propeller shaft centre bearing support from the body frame. Tie the propeller shaft to one side. From the coupling flange, pull the flexible buffer and prise out the lockplate. Holding the coupling flange quite still, unscrew and remove the nut and then pull off the flange. The rear oil seal is now exposed and it may be extracted by levering or using a two-legged puller, the pressure from the centre screw being applied to the end of the transmission output shaft. Drive in the new seal using a piece of tubing as a drift. The outer face of the seal must lie 0.118 in (3.0 mm) below the end face of the extension housing. Reassembly is a reversal of dismantling but preload the propeller shaft centre bearing.

Genuine BMW 2002 Automatic Transmission Seal

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10 Automatic Transmission Seals found

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BMW 2002 Shaft Seal
Part Number: 23128677736
$23.13 MSRP: $30.63
You Save: $7.50 (25%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Back-Up Switch, Extension Housing Seal
- Replaces: 23-11-1-204-223, 23-11-1-224-801, 23-12-1-222-677, 23-12-1-228-333, 23-12-1-228-443, 23-12-1-282-394
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1968-1976 BMW 2002
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BMW 2002 Shaft Seal
Part Number: 23121205342
$25.10 MSRP: $30.31
You Save: $5.21 (18%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Extension Housing Seal
- Replaces: 23-12-1-205-340
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1968-1976 BMW 2002
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BMW 2002 Shaft Seal
Part Number: 23121282394
$23.13 MSRP: $30.63
You Save: $7.50 (25%)
Ships in 1-3 Business Days
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Product Specifications
- Replaced by: 23128677736
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1968-1976 BMW 2002
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BMW 2002 Shaft Seal
Part Number: 23121490192
$17.17 MSRP: $20.74
You Save: $3.57 (18%)
Ships in 1-2 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1968-1976 BMW 2002
View related parts
BMW 2002 Shaft Seal
Part Number: 23121205340
$25.10 MSRP: $30.31
You Save: $5.21 (18%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 23121205342
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1968-1976 BMW 2002
View related parts
BMW 2002 Shaft Seal
Part Number: 23121222677
$23.13 MSRP: $30.63
You Save: $7.50 (25%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 23128677736
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1968-1976 BMW 2002
View related parts
BMW 2002 Shaft Seal
Part Number: 23121205552
$17.17 MSRP: $20.74
You Save: $3.57 (18%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaces: 23-12-1-204-211
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1968-1976 BMW 2002
View related parts
BMW 2002 Shaft Seal
Part Number: 23121204211
$17.17 MSRP: $20.74
You Save: $3.57 (18%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 23121205552
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1968-1976 BMW 2002
View related parts
BMW 2002 Shaft Seal
Part Number: 23121204210
$25.10 MSRP: $30.31
You Save: $5.21 (18%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaces: 23-12-1-204-209
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1968-1976 BMW 2002
View related parts
BMW 2002 Shaft Seal
Part Number: 23121204209
$25.10 MSRP: $30.31
You Save: $5.21 (18%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 23121204210
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 1968-1976 BMW 2002

BMW 2002 Automatic Transmission Seal

The BMW 2002 Automatic Transmission Seal is responsible for keeping pressurized fluid locked inside the gearbox so there are no slips or shuddering. The driver has no worries about messy leakage as power is provided with ease, making acceleration a breeze. Mounted where the output shaft leaves the transmission case, the seal has a flexible rubber lip supported by a tension spring that hugs the turning metal to provide a tight seal that traps the hydraulic oil that each automatic shift requires. For stock vehicles, choosing the right Automatic Transmission Seal simply means matching year, make, model and trim, which directs owners to the exact diameter and thickness that BMW specified in 2002 production runs. Enthusiasts who switched out higher-ratio gearboxes must ensure they are first checking the transmission code since a mismatched Automatic Transmission Seal can misalign, weeping fluid and quickly ruining clutches. Across the 2002 lineup, only modest updates appeared, moving from an earlier single-lip to a sturdier double-lip Automatic Transmission Seal. The latter adds a second contact edge that improves heat resistance and extends service life under highway cruising. Regular inspection of the Automatic Transmission Seal ensures the compact BMW goes shifting cleanly for countless everyday drives.

If you are looking for OEM BMW 2002 Automatic Transmission Seal, we highly recommend to shop with us. Not only do we offer budget friendly prices, but we also provide fast delivery. In addition, we have a hassle-free return policy on all genuine BMW 2002 Automatic Transmission Seal that come backed by the manufacturer's warranty.

BMW 2002 Automatic Transmission Seal Parts Questions & Experts Answers

Shaft Seal
23121490192
Q:
How to renew a faulty Automatic Transmission Seal in the rear of the transmission extension housing without removing the transmission on a BMW 2002?
Posted by Kirk A.
A:
Provided the transmission fluid level is correct, any leaks from the rear of the transmission extension housing must be due to a faulty oil seal. This can be renewed without removing the transmission. Disconnect the exhaust pipe from the rear of the transmission. Disconnect the front of the propeller shaft from the transmission coupling flange. Disconnect the propeller shaft centre bearing support from the body frame. Tie the propeller shaft to one side. From the coupling flange, pull the flexible buffer and prise out the lockplate. Holding the coupling flange quite still, unscrew and remove the nut and then pull off the flange. The rear oil seal is now exposed and it may be extracted by levering or using a two-legged puller, the pressure from the centre screw being applied to the end of the transmission output shaft. Drive in the new seal using a piece of tubing as a drift. The outer face of the seal must lie 0.118 in (3.0 mm) below the end face of the extension housing. Reassembly is a reversal of dismantling but preload the propeller shaft centre bearing.
Answered by BMW Parts Specialist Chaz / Jan 01, 2022

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