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Final Drive Service Kits, Related Parts & Tools


We have put together these Final Drive Service Kits to help you select parts you will need when working on your final drive. The final drive kits, recommended tools and additional recommended parts are specific for your BMW airhead model and year. Once you have your model and year selected it will narrow down the list for your specific bike. We have also included down below recommended special tools you will need to help you when working on your final drive.

Seal & Bearing Replacement Service Kits

Complete Seal Kits for your Final Drive

  • Make sure you have your model and year to narrow down the correct final drive seal kit for your model
  • Includes all the seals you will need to reseal your final drive.

Complete Bearing Replacement Service Kits

  • Make sure you have your model and year to narrow down the correct final drive bearing kit for your model
  • Includes all the bearings you will need to recondition your final drive.

Just a few steps

Select your parts below to add to your basket

  • Make sure you have your model and year to narrow down the parts you will need
  • Add Your Final Drive Service Kit
  • Add any relevant additional tools you may need
  • Add any additional recommended parts you may also want to replace while completing this service

Final Drive Example performed on a 1985 R80 RT

This video applies to 85+ Classic MONOLEVER BMW Airheads

Also, applies to R80 G/S & R80 ST


Final Drive Example performed on a 1975 R90/6

This video applies to 1970 to 1984 Classic BMW Airheads*

*There are a few minor differences on the 1970-1973 & 1981-1984 models

33. Final Drive Service Kits
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Please note: Showing all products in this category. Select your bike to display only products for specific fitment
Final Drive Seal Kit for 1970-1973 View Full Product
No reviews yet.
Final Drive Seal Kit for 1970-1973 Part #FD70-73

Boxer2valve's Final drive Seal Kit contains all the gaskets & seals you will need to re-seal your final drive on your classic BMW 2 valve airhead.  This kit if specifically for 1970-1973 /5 models.

This kit includes the following:

Part Name Part # BMW Part # Quantity
Final Drive Cover Gasket 3311096
33112311096
1
Final Drive Output Seal 3312337 33123004337
1
Final Drive Seal 3312343 33123004343
1
Pinion Shaft Seal 3312542 33121231542
1
Gasket for Swing Arm
3311098 33172311098
1
12x16 Aluminum Seal Rings 7711130 07119963130
2
16x20 Aluminum Seal Ring 7711252
07119963252
1
18x22 Aluminum Seal Ring 7777300
07119963384
1
Not currently in stock. Typical delivery: 4-5 weeks.
$43.38
Final Drive Seal Kit:

Final Drive Seal Kit for 1974-1980 View Full Product
No reviews yet.
Final Drive Seal Kit for 1974-1980 Part #FD74-80

Boxer2valve's Final drive Seal Kit contains all the gaskets & seals you will need to re-seal your final drive on your classic BMW 2 valve airhead.  This kit is specifically for 1974 to 1980 models.

This kit includes the following:

Part Name Part # BMW Part # Quantity
Final Drive Cover Gasket 3311096
33112311096
1
Final Drive Output Seal 3312337 33123004337
1
Final Drive Seal 3312343 33123004343
1
Pinion Shaft Seal 3312542 33121231542
1
Gasket Ring for Pinion
3312302
33121233302
1
Gasket for Swing Arm
3311098 33172311098
1
12x16 Aluminum Seal Rings 7711130 07119963130
2
16x20 Aluminum Seal Ring 7711252
07119963252
1
18x22 Aluminum Seal Ring 7777300
07119963384
1
Not currently in stock. Typical delivery: 4-5 weeks.
$47.33
Final Drive Seal Kit:

Final Drive Seal Kit for 1981-1984 View Full Product
No reviews yet.
Final Drive Seal Kit for 1981-1984 Part #FD81-84

Boxer2valve's Final drive Seal Kit contains all the gaskets & seals you will need to re-seal your final drive on your classic BMW 2 valve airhead.  This kit is specifically for 1981 & 1984 models.

Please note:Does not fit R80 G/S or R80 ST models.

This kit includes the following:


Part Name Part # BMW Part # Quantity
Final Drive Cover Gasket 3311097
33112311097
1
Final Drive Output Seal 3312337 33123004337
1
Final Drive Seal 3312343 33123004343
1
Pinion Shaft Seal 3312542 33121231542
1
Gasket Ring for Pinion
3312302
33121233302
1
Gasket for Swing Arm
3311098 33172311098
1
12x16 Aluminum Seal Rings 7711130 07119963130
2
16x20 Aluminum Seal Ring 7711252
07119963252
1
18x22 Aluminum Seal Ring 7777300
07119963384
1
8x12 Aluminum Seal Ring 7711041
07119963041
1
Not currently in stock. Typical delivery: 4-5 weeks.
$47.49
Final Drive Seal Kit:

Final Drive Seal Kit for R80 G/S & R80 ST View Full Product
No reviews yet.
Final Drive Seal Kit for R80 G/S & R80 ST Part #FDR80GS-R80ST

Boxer2valve's Final drive Seal Kit contains all the gaskets & seals you will need to re-seal your final drive on your classic BMW 2 valve airhead. 

This kit is specifically for the following models:

  • 1980 - 1987 R80 G/S
  • 1982 - 1984 R80 ST


This kit includes the following:


Part Name Part # BMW Part # Quantity
Final Drive Seal 3312938 33121241938
1
Pinion Shaft Seal 3312542 33121231542
1
Gasket Ring for Pinion
3312302
33121233302
1
12x16 Aluminum Seal Rings 7711130 07119963130
2
16x20 Aluminum Seal Ring 7711252
07119963252
1
18x22 Aluminum Seal Ring 7777300
07119963384
1
8x12 Aluminum Seal Ring 7711041
07119963041
1
Not currently in stock. Typical delivery: 4-5 weeks.
$64.80
Final Drive Seal Kit:

Final Drive Seal Kit for Monolevers View Full Product
No reviews yet.
Final Drive Seal Kit for Monolevers Part #FDMONO

Boxer2valve's Final drive Seal Kit contains all the gaskets & seals you will need to re-seal your final drive on your classic BMW 2 valve airhead. 

This kit is specifically for Monolever Models

This kit includes the following:


Part Name Part # BMW Part # Quantity
Final Drive Seal 3312938 33121241938
1
Pinion Shaft Seal 3312542 33121231542
1
Gasket Ring for Pinion
3312302
33121233302
1
12x16 Aluminum Seal Rings 7711130 07119963130
2
16x20 Aluminum Seal Ring 7711252
07119963252
1
18x22 Aluminum Seal Ring 7777300
07119963384
1
8x12 Aluminum Seal Ring 7711041
07119963041
1
Not currently in stock. Typical delivery: 4-5 weeks.
$64.80
Final drive Seal Kit:

Final Drive Bearing Kit for 1970-1980 View Full Product
No reviews yet.
Final Drive Bearing Kit for 1970-1980 Part #FD70-80Bearing

Boxer2valve's Final Drive Bearing Kit contains all the replacement bearings you will need to recondition your final drive on your classic BMW 2 valve airhead. 

This kit is specifically for 1970 & 1980 models.

This kit includes the following:


Part Name Part # BMW Part # Quantity
Pinion Bearing
3312247
33121230247
1
Pinion Bearing
3312244 33121230244
1
Ring Gear Bearing
7711760 07119981760
1
Needle Bearing
3312739 33121242739
1
Not currently in stock. Typical delivery: 4-5 weeks.
$298.12
Final Drive Bearing Kit:

Final Drive Bearing Kit for 1981-1984 View Full Product
No reviews yet.
Final Drive Bearing Kit for 1981-1984 Part #FD81-84Bearing

Boxer2valve's Final Drive Bearing Kit contains all the replacement bearings you will need to recondition your final drive on your classic BMW 2 valve airhead. 

This kit is specifically for 1981 & 1984 models.

This kit includes the following:


Part Name Part # BMW Part # Quantity
Pinion Bearing
3312247
33121230247
1
Pinion Needle Bearing
3312998 33121236998
1
Ring Gear Bearing
7711760 07119981760
1
Needle Bearing
3312739 33121242739
1
Not currently in stock. Typical delivery: 4-5 weeks.
$290.01
Final Drive Bearing Kit:

Final Drive Bearing Kit for Monolevers View Full Product
No reviews yet.
Final Drive Bearing Kit for Monolevers Part #FDMONO-Bearing

Boxer2valve's Final Drive Bearing Kit contains all the replacement bearings you will need to recondition your final drive on your classic BMW 2 valve Monolever airhead. 

This kit is specifically for 1985 + Monolevers & R80 G/S & R80 ST

This kit includes the following:

Part Name Part # BMW Part # Quantity
Pinion Bearing
3312247
33121230247
1
Pinion Needle Bearing
3312998 33121236998
1
Final Drive Bearing
3312211 07119981760
1
Tapered Final Drive Bearing
3312216 33121242739
1
Not currently in stock. Typical delivery: 4-5 weeks.
$293.98
Final Drive Bearing Kit:

Final Drive Pinion Tool View Full Product
(3) 2 Reviews
Final Drive Pinion Tool Part #7224400 If you want to replace the pinion seal of your final drive, or disassemble the final drive for any reason, then you will need this tool.
In Stock
$79.95

Final Drive Pinion Holding Tool View Full Product
No reviews yet.
Final Drive Pinion Holding Tool Part #8833020 This tool immobilizes the final drive pinion and allows you to easily and safely loosen and tighten the nut on all 1970 and later dual shock and Monolever models.
Limited to Stock on Hand. Custom Made
$99.95

Adjustable Seal Extractor View Full Product
No reviews yet.
Adjustable Seal Extractor Part #7220178 With this adjustable seal extractor its easy to find the optimum angle for leverage to extract the seal at the push of a button.
In Stock
$29.95

Final Drive Nut View Full Product
No reviews yet.
Final Drive Nut Part #3317789 OEM quality replacement for the often times rusted nuts connecting the final drive to swing arm.
In Stock
$3.49

Final Drive Nut 12 point, Stainless View Full Product
No reviews yet.
Final Drive Nut 12 point, Stainless Part #3317789S Boxer2Valve has sourced an upgraded Final Drive Nut, to replace the OEM that often times incurs rust problems. This stainless steel nut will give you years of rust-free use, and make final drive maintenance easier in the future.
In Stock
$5.95

Liqui Moly Flange Sealant 50g View Full Product
No reviews yet.
Liqui Moly Flange Sealant 50g Part #2203810 This sealant is designed to be used in sealing applications without a gasket. Ideally suited for BMW Gearboxes, and Final Drive units that are assembled without a paper gasket. That would be all 1985 and later BMW Twins ( 2 and 4V) and K Models for example.
In Stock
$20.95

Pinion Shim View Full Product
No reviews yet.
Pinion Shim Part #3312717-737
High quality OEM equivalent shims for the Pinion on BMW final drives.

Available in thickness from 1.50mm to 2.50mm
Not currently in stock. Typical delivery: 4-5 weeks.
$7.95

Final Drive Shim - 1985+ View Full Product
No reviews yet.
Final Drive Shim - 1985+ Part #3312403-407
Available Sizes: 1.95mm to 2.15mm

Rear crowngear bearing spacer
Not currently in stock. Typical delivery: 4-5 weeks.
$10.95

Final Drive Shim View Full Product
No reviews yet.
Final Drive Shim Part #3312544-545
Available in: 0.10mm or  0.15mm

Spacer for the crown wheel of the final drive, between the bearing and the shaft seal.
Not currently in stock. Typical delivery: 4-5 weeks.
$23.00

Compression Ring View Full Product
No reviews yet.
Compression Ring Part #3312461-440
Differential, crown wheel bushing for the R80 G/S 1980-1984 and R80 ST 1982-1984

  • Sizes from: 2.7mm to 3.5mm
Not currently in stock. Typical delivery: 4-5 weeks.
$8.95

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