40 Years of Siebenrock – A Heartfelt Thank You!

 

Since 1985, the name Siebenrock has stood for quality, technical expertise, and genuine passion for classic BMW motorcycles.
Our success is built on continuous development, solid engineering knowledge,

and the ambition to create products that impress with functionality and durability.

  

A major milestone – and one we’d love to celebrate with you!

 

From July 4 to 16, 2025, enjoy a special anniversary discount on selected Siebenrock items in our online shop – it’s worth a look!

 

Or come see us in person at the BMW Motorrad Days in Garmisch-PartenkirchenJuly 4–6, 2025.

Visit our stand and receive an exclusive anniversary gift – a little surprise from us to you!

 

 Your Siebenrock Team

 

While supplies last.

 

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Shaft seal
Transmission Input 5 speed

BMW 2-valve Boxer models

Artikelbild
€9.95

Prices incl. VAT, plus shipping costs

Ready to ship today, Delivery time appr. 2-4 workdays within Germany

  • 2312726
This is the transmission Input shaft seal for all BMW 2-valve 5-speed gear boxes. OEM quality... more
Shaft seal
Transmission Input 5 speed
This is the transmission Input shaft seal for all BMW 2-valve 5-speed gear boxes.

OEM quality replacement.
Price per piece.

Spare part for the classic BMW airhead models
R 50/5, R 60/5, R 75/5
R 60/6, R 75/6, R 90/6, R 90S
R 60/7, R 75/7, R 80/7, R 80RT, R 100/7, R 100S, R 100RS, R 100RT, R 100CS
R 45, R 65, R 65LS
R 65GS, R 80G/S, R 80ST
Paralever models R 80GS, R 100GS, R 80GS Basic, R 80R, R 80R Mystic, R 100R, R 100R Mystic
Monolever models R 65, R 80, R 80RT, R 100RS, R 100RT.

Compare: 23121338726 / 23-12-1-338-726

Information on product safety
Fits for BMW R2V: R 60/6, R 75/6, R 90/6, R 90S, R 60/7, R 75/7, R 80 up to 84, R 100 up to 84, R 45 up to 84, R 65 up to 84, R 65 Mono from 85 on, R 80 Mono from 85 on, R 100 RS/RT Mono from 87 on, R 65GS 87-92, R 80 G/S,ST 80-87, R 80GS 87-96, R 100GS 87-96, R 80R 91-95, R 100R 91-95
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Artikelbild Shifter shaft seal
BMW 2-valve Boxer models
€4.90
Prices incl. VAT, plus shipping costs
Part no. 2312740
Artikelbild Crankshaft seal
BMW 2-valve models
Rear
€21.95
Prices incl. VAT, plus shipping costs
Part no. 1111739
Artikelbild Cover gasket
Transmission 5-speed
BMW 2-valve Boxer models

€8.95
Prices incl. VAT, plus shipping costs
Part no. 2311596
Artikelbild Shaft seal
Transmission output 5 speed
BMW 2-valve Boxer models

€14.95
Prices incl. VAT, plus shipping costs
Part no. 2312681
Artikelbild Idle switch
For 5-speed gearbox
BMW 2v Boxer models from 9/75 on

€19.95
Prices incl. VAT, plus shipping costs
Part no. 6131097
Artikelbild Shaft seal
Transmission output
BMW Paralever models
€19.80
Prices incl. VAT, plus shipping costs
Part no. 2312514
1122099_1 O-Ring crankshaft end
BMW 2-valve Boxer models
€5.50
Prices incl. VAT, plus shipping costs
Part no. 1122099
Artikelbild Clutch boot
Clutch pressure bearing
For BMW 2V, 4V, K models
€19.50
Prices incl. VAT, plus shipping costs
Part no. 2313731
Artikelbild Valve cover gasket
BMW 2-valve Boxer models
€3.95
Prices incl. VAT, plus shipping costs
Part no. 1112426
Artikelbild O-Ring Oil pump cover
BMW 2-valve Boxer models
€5.50
Prices incl. VAT, plus shipping costs
Part no. 1141895
Artikelbild Gear shifter unit
Repair kit
BMW 2-valve Boxer models from 9/75 on
€27.25
Prices incl. VAT, plus shipping costs
Part no. 2331910
Artikelbild Swing Arm Boot
BMW 2-valve Boxer models
€19.95
Prices incl. VAT, plus shipping costs
Part no. 3317304
Artikelbild Oil pan gasket
BMW 2-valve Boxer models
€6.95
Prices incl. VAT, plus shipping costs
Part no. 1113427
Artikelbild Transmission bearing Set
5-speed gearbox
BMW 2-valve Boxer models

€139.00
Prices incl. VAT, plus shipping costs
Part no. 2312996
Artikelbild Transmission bearing Set
BMW 2-vakve Boxer models
5-speed gearbox
€78.00
Prices incl. VAT, plus shipping costs
Part no. 2312999
Artikelbild Paper gasket
For rear drive shaft housing
BMW2v Boxer models up to 9/84
€2.70
Prices incl. VAT, plus shipping costs
Part no. 3311098
Artikelbild Sealing rings for inspection
BMW 2V Boxer models
€4.75
Prices incl. VAT, plus shipping costs
Part no. 0711333
Artikelbild Crankshaft seal
BMW 2v Boxer models
Front
€6.50
Prices incl. VAT, plus shipping costs
Part no. 1114011
Artikelbild Oilfilter Set
Mahle
BMW 2v Boxer models without oilcooler
OX37D two-piece
€14.25
Prices incl. VAT, plus shipping costs
Part no. 1142145
Artikelbild Clutch disc
MCC600 Lucas
BMW 2v Boxer models from 9/80 on

€89.50
Prices incl. VAT, plus shipping costs
Part no. 2121512L
Artikelbild Pushrod tube seal
18mm
BMW 2v Boxer models from 9/75 on
€3.95
Prices incl. VAT, plus shipping costs
Part no. 1132995
Artikelbild Speedometer cable boot Gearbox input
BMW 2-valve Boxer models
€7.90
Prices incl. VAT, plus shipping costs
Part no. 6113170
Artikelbild Clutch centering tool
BMW 2-valve Boxer models from 9/80 on
€15.80
Prices incl. VAT, plus shipping costs
Part no. 2123512Z
Artikelbild Bearing shell conrod
BMW 2v Boxer models
Standard sized
€9.99 €12.50
Prices incl. VAT, plus shipping costs
Part no. 1124460
1131183_1 Chain tensioner Set
Simplex
BMW 2V Boxer models
€89.50
Prices incl. VAT, plus shipping costs
Part no. 1131183
Artikelbild Float chamber gasket
BING carburator
64/26, 64/28, 64/32, 94/40
BMW 2-valve Boxer models
€6.50
Prices incl. VAT, plus shipping costs
Part no. 1311764
Artikelbild Fork tube seal
BMW 2-valve Boxer models
€6.95
Prices incl. VAT, plus shipping costs
Part no. 3142001
Artikelbild Oilfilter Set
Mahle
BMW 2v Boxer models with oilcooler
OX36D two-piece
€14.90
Prices incl. VAT, plus shipping costs
Part no. 1142146
Artikelbild Airfilter
Mahle
BMW 2-valve Boxer models from 9/80 on
LX56
€25.25
Prices incl. VAT, plus shipping costs
Part no. 1372080
Artikelbild Fuel tap
Left side
BMW 2-valve Boxer models

€49.50
Prices incl. VAT, plus shipping costs
Part no. 1612113
Artikelbild Float
BING carburator 64/26, 64/28, 64/32, 94/40
BMW 2-valve Boxer models
€21.15
Prices incl. VAT, plus shipping costs
Part no. 1311766
NEW
Artikelbild Sealing cuff
Ball head gear lever
BMW 2-valve Boxer models
€1.95
Prices incl. VAT, plus shipping costs
Part no. 2341149
Artikelbild Valve guide
BMW 2V Boxer models
Not for R 45 and R 65
€14.30
Prices incl. VAT, plus shipping costs
Part no. 1112708
Artikelbild Strainer Fuel tap
Karcoma
BMW 2-valve Boxer models
€9.50
Prices incl. VAT, plus shipping costs
Part no. 1612112
Artikelbild Pushrod tube
18mm
BMW 2v Boxer models from 9/75 on
Stainless steel
€24.90
Prices incl. VAT, plus shipping costs
Part no. 1111904
Artikelbild Exhaust star nut
BMW /7, Monoelver, Paralever models
With short fins
€37.20
Prices incl. VAT, plus shipping costs
Part no. 1821721
Artikelbild Steering head bearing
BMW 2V Boxer, K 2V, K 4V, F models
€21.90
Prices incl. VAT, plus shipping costs
Part no. 0711070
Artikelbild Final drive seal
BMW2v Boxer models up to 9/84
€11.95
Prices incl. VAT, plus shipping costs
Part no. 3312343
Artikelbild Final drive output seal
Rear axle
BMW 2v Boxer models up to 9/84

€6.95
Prices incl. VAT, plus shipping costs
Part no. 3312019
Artikelbild Diaphragm spring
BMW 2-valve Boxer models from 9/80 on
€65.00
Prices incl. VAT, plus shipping costs
Part no. 2121353
Artikelbild Cover gasket
Transmission 5-speed
BMW 2-valve Boxer models

€8.95
Prices incl. VAT, plus shipping costs
Part no. 2311596
Artikelbild Shifter shaft seal
BMW 2-valve Boxer models
€4.90
Prices incl. VAT, plus shipping costs
Part no. 2312740
Artikelbild Oilfilter Set
Mahle
BMW 2v Boxer models without oilcooler
OX37D two-piece
€14.25
Prices incl. VAT, plus shipping costs
Part no. 1142145
Artikelbild Shaft seal
Transmission output 5 speed
BMW 2-valve Boxer models

€14.95
Prices incl. VAT, plus shipping costs
Part no. 2312681
Artikelbild Crankshaft seal
BMW 2-valve models
Rear
€21.95
Prices incl. VAT, plus shipping costs
Part no. 1111739
Artikelbild Shaft seal
Transmission output
BMW Paralever models
€19.80
Prices incl. VAT, plus shipping costs
Part no. 2312514
Artikelbild Clutch boot
Clutch pressure bearing
For BMW 2V, 4V, K models
€19.50
Prices incl. VAT, plus shipping costs
Part no. 2313731
Artikelbild Gasket Set
For Karcoma fuel tap
BMW 2-valve Boxer models

€12.95
Prices incl. VAT, plus shipping costs
Part no. 1612869
Artikelbild Transmission bearing Set
BMW 2-vakve Boxer models
5-speed gearbox
€78.00
Prices incl. VAT, plus shipping costs
Part no. 2312999
Artikelbild Swing Arm Boot
BMW 2-valve Boxer models
€19.95
Prices incl. VAT, plus shipping costs
Part no. 3317304
Artikelbild Final drive output seal
Rear axle
BMW 2v Boxer models up to 9/84

€6.95
Prices incl. VAT, plus shipping costs
Part no. 3312019
Artikelbild Oilfilter Set
Mahle
BMW 2v Boxer models with oilcooler
OX36D two-piece
€14.90
Prices incl. VAT, plus shipping costs
Part no. 1142146
Artikelbild Pushrod tube seal
18mm
BMW 2v Boxer models from 9/75 on
€3.95
Prices incl. VAT, plus shipping costs
Part no. 1132995
Artikelbild Power Kit Extra 1000cc 97mm
Plug & Play
BMW R 75/5, R 75/6, R 90/6 , R 90S up to 9/7
€999.00 €1,159.00
Prices incl. VAT, plus shipping costs
Part no. 1100072
Artikelbild Bearing shell conrod
BMW 2v Boxer models
Standard sized
€9.99 €12.50
Prices incl. VAT, plus shipping costs
Part no. 1124460
NEW
3312938_1 Final Drive Large Shaft Seal
BMW 2V Boxer models from 9/80 on
With single-sided swingarm
€31.30
Prices incl. VAT, plus shipping costs
Part no. 3312938
NEW
1101200_1 Big Bore Kit 1070cc "S"
BMW R 100 models from 9/80 on
Conrods 151,0 mm
€2,590.00
Prices incl. VAT, plus shipping costs
Part no. 1101200
NEW
Artikelbild Bearing shell connecting rod
+0,50 2.Oversize
BMW 2V Boxer models
€9.99 €12.50
Prices incl. VAT, plus shipping costs
Part no. 1124420
NEW
3421233_1 Brakemaster cylinder
Repair kit
BMW R 100 models
Rear
€44.95
Prices incl. VAT, plus shipping costs
Part no. 3421233
Artikelbild T-piece
For fuel hose 6mm
BMW 2-valve Boxer models
€9.95
Prices incl. VAT, plus shipping costs
Part no. 1311083
1212000_1 Distance ring
For spark plug
BMW R 100 models
€4.95
Prices incl. VAT, plus shipping costs
Part no. 1212000
Artikelbild Final drive seal
BMW2v Boxer models up to 9/84
€11.95
Prices incl. VAT, plus shipping costs
Part no. 3312343
Artikelbild Cylinder base gasket
Paper EWT207 99mm
BMW /5, /6, /7 models up to 9/1980

€2.80
Prices incl. VAT, plus shipping costs
Part no. 1111002
Artikelbild Sport tappet, Cam follower
BMW 2-valve Boxer models
Wank
€129.90
Prices incl. VAT, plus shipping costs
Part no. 1133638
Artikelbild Conrod
Siebenrock Big Bore Kit
151,0 mm
€272.00
Prices incl. VAT, plus shipping costs
Part no. 1109045
Artikelbild Cylinder
Big Bore Kit "MAHLE"
98mm
€459.00
Prices incl. VAT, plus shipping costs
Part no. 1109010
Artikelbild Gearbox With kickstarter
Overhaul
BMW 2v Boxer Paralever models
€890.00
Prices incl. VAT, plus shipping costs
Part no. 2300468
Artikelbild Brake line stainless steel
BMW 2v Boxer G/S, ST, GS models
€54.00
Prices incl. VAT, plus shipping costs
Part no. 3432106
Artikelbild Brake line stainless steel
320mm brake disc
BMW R 80ST
€57.00
Prices incl. VAT, plus shipping costs
Part no. 3432108
Artikelbild Diaphragm spring
BMW 2-valve Boxer models from 9/80 on
€65.00
Prices incl. VAT, plus shipping costs
Part no. 2121353
LM1035_1x Hypoid gear oil
1 Liter
GL5 SAE85W-90 Liqui Moly
Content 1 Liter
€13.45
Prices incl. VAT, plus shipping costs
Part no. LM1035
Artikelbild Gearbox gasket Set
5-speed without kickstarter
BMW 2V Boxer Modelle ab 9/80
€42.90
Prices incl. VAT, plus shipping costs
Part no. 2300593
Artikelbild Gearbox gasket Set
5-speed with kickstarter
BMW 2-valve Boxer models

€56.95
Prices incl. VAT, plus shipping costs
Part no. 2300596
Artikelbild Replacement Kit 1000cc 99mm
Plug & Play
BMW R 100/7, R 100RS, R 100RT
Up to 9/1980
€1,069.00
Prices incl. VAT, plus shipping costs
Part no. 1100104
Artikelbild Replacement Kit 1000cc
Plug & Play
BMW R 100, R 100CS, R 100RS, R 100RT, R 100GS, R 100R
From 9/1980 on
€1,049.00
Prices incl. VAT, plus shipping costs
Part no. 1100100
Artikelbild Valve cover Touring
BMW 2-valve Boxer models
With Oil filler opening
€109.50
Prices incl. VAT, plus shipping costs
Part no. 1112244
Artikelbild Gear wheel 5th gear
Long 5th gear Wiith "X"
BMW 2v Boxer models from 4/82 on

€159.50
Prices incl. VAT, plus shipping costs
Part no. 2322993
Artikelbild Gearwheel for input shaft
17,5° 33mm
BMW 2-valve models from 3/85 on

€139.00
Prices incl. VAT, plus shipping costs
Part no. 2321326
Artikelbild Cylinder head Gasket
BMW 2V Boxer models with 1043cc
€49.50
Prices incl. VAT, plus shipping costs
Part no. 1125400
Artikelbild Cylindrical roller bearing
For 5-speed gearbox
BMW 2-valve Boxer models

€66.00 €86.00
Prices incl. VAT, plus shipping costs
Part no. 2321446
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