We’re taking a short break!


From October 27th to October 31st, 2025, we’ll be on company holidays.

 

All orders placed by October 24th at 3:00 p.m. will be shipped the same day!


Our online shop remains open around the clock – 24/7!

 

Starting November 3rd, 2025, we’ll be back and will process all orders as quickly as possible.

 

Your Siebenrock Team

 

Jump to main content
Categories

Pressure ring
Exhaust 38mm

BMW 2-vakve Boxer models

Artikelbild
€9.90

Prices incl. VAT, plus shipping costs

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

  • part no.: 1821585
Description Evaluations 0
Description
This is an OEM quality replacement pressure ring for the exhaust connection at the cylinder head.... more
Close menu
Pressure ring
Exhaust 38mm
This is an OEM quality replacement pressure ring for the exhaust connection at the cylinder head. Fits all 2V twins with 38mm headers.

Sold each. One per side needed.

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 80/7, R 80RT, R 100/7, R 100S, R 100RS, R 100RT, R 100S, R 100CS
R 80G/S, R 80ST
Paralever models R 80GS, R 100GS, R 80GS PD, R 100GS PD, R 80R, R 100R, R 100R Mystic, R 80GS Basic
Monolever models R 65, R 80, R 80RT, R 100RS, R 100RT

Compare 18211230585 / 18-21-1-230-585

Information on product safety
Fits for BMW R2V: 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 up to 84, R 100 up to 84, 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
Evaluations 0
Read, write and discuss reviews... more
Close menu
Customer evaluation for "Pressure ring[br]Exhaust 38mm"
Write an evaluation
Evaluations will be activated after verification.

The fields marked with * are required.

Accessories 7 Similar products Customers also bought Customers also viewed
Accessories 7
Artikelbild Manifold
38mm Chrome
BMW /5, /6, /7 models up to 9/80
Right side


€198.00
Prices incl. VAT, plus shipping costs
Part no. 1811433
Artikelbild Manifold
38mm Chrome
BMW /5, /6, /7 models up to 9/80
Left side


€198.00
Prices incl. VAT, plus shipping costs
Part no. 1811434
Artikelbild Exhaust star nut
BMW /7, Monoelver, Paralever models
With short fins
€39.95
Prices incl. VAT, plus shipping costs
Part no. 1821721
Artikelbild Exhaust nut
BMW /5, /6 models
With long fins
€36.90
Prices incl. VAT, plus shipping costs
Part no. 1811270
Artikelbild Manifold
Chrome
BMW R 80ST
Right side


€219.00
Prices incl. VAT, plus shipping costs
Part no. 1811844
Artikelbild Manifold
Chrome
BMW R 80ST
Left side



€219.00
Prices incl. VAT, plus shipping costs
Part no. 1811843
NEW
1814181_1 Manifold
Chrome
BMW R 80, R 100 Monolever models
Left side

€186.00
Prices incl. VAT, plus shipping costs
Part no. 1814181
Similar products
Artikelbild Manifold
38mm Chrome
BMW /5, /6, /7 models up to 9/80
Right side


€198.00
Prices incl. VAT, plus shipping costs
Part no. 1811433
Artikelbild Manifold
38mm Chrome
BMW /5, /6, /7 models up to 9/80
Left side


€198.00
Prices incl. VAT, plus shipping costs
Part no. 1811434
Artikelbild Manifold
Chrome
BMW R 80ST
Left side



€219.00
Prices incl. VAT, plus shipping costs
Part no. 1811843
Customers also bought
Artikelbild Clamping ring
38mm
BMW 2-valve Boxer models

€11.95
Prices incl. VAT, plus shipping costs
Part no. 1821586
Artikelbild Exhaust star nut
BMW /7, Monoelver, Paralever models
With short fins
€39.95
Prices incl. VAT, plus shipping costs
Part no. 1821721
Artikelbild Valve cover gasket
BMW 2-valve Boxer models
€3.95
Prices incl. VAT, plus shipping costs
Part no. 1112426
Artikelbild Exhaust nut
BMW /5, /6 models
With long fins
€36.90
Prices incl. VAT, plus shipping costs
Part no. 1811270
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 Oil pan gasket
BMW 2-valve Boxer models
€6.95
Prices incl. VAT, plus shipping costs
Part no. 1113427
Artikelbild Fuel tap
Left side
BMW 2-valve Boxer models

€49.50
Prices incl. VAT, plus shipping costs
Part no. 1612113
Artikelbild Oilfilter Set
Mahle
BMW 2v Boxer models without oilcooler
OX37D two-piece
€14.30
Prices incl. VAT, plus shipping costs
Part no. 1142145
Artikelbild Sealing rings for inspection
BMW 2V Boxer models
€5.75
Prices incl. VAT, plus shipping costs
Part no. 0711333
Artikelbild Cap nut stainless steel
BMW 2-valve Boxer models
For valve cover
€6.90
Prices incl. VAT, plus shipping costs
Part no. 1112330
Artikelbild Star Nut Wrench
BMW 2-valve Boxer models
In shop quality
€49.35
Prices incl. VAT, plus shipping costs
Part no. 1821699
Artikelbild Float
BING carburator 64/26, 64/28, 64/32, 94/40
BMW 2-valve Boxer models
€25.80
Prices incl. VAT, plus shipping costs
Part no. 1311766
Artikelbild Oilfilter Set
Mahle
BMW 2v Boxer models with oilcooler
OX36D two-piece
€14.95
Prices incl. VAT, plus shipping costs
Part no. 1142146
Artikelbild Oil drain plug engine
BMW 2-valve Boxer models
Magnetic M 18x1,5
€9.80
Prices incl. VAT, plus shipping costs
Part no. 0711143
0758376_1 Silicone sealing compound
0.03 Liter (€521.67 / 1 Liter)
BMW 2V Boxer models
Drei Bond
Content 0.03 Liter (€521.67 * / 1 Liter)
€15.65
Prices incl. VAT, plus shipping costs
Part no. 0758376
Artikelbild Cylinder gasket Set
From 9/1980 on
For Power Kit 1000cc, Replacement Kit
1000cc, BMW R 100 models from 9/80 on
€49.50
Prices incl. VAT, plus shipping costs
Part no. 1100101
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
Right side
BMW 2-valve Boxer models

€49.50
Prices incl. VAT, plus shipping costs
Part no. 1612114
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 Bearing shell conrod
BMW 2v Boxer models
Standard sized
€12.50
Prices incl. VAT, plus shipping costs
Part no. 1124460
Artikelbild Swing Arm Boot
BMW 2-valve Boxer models
€19.95
Prices incl. VAT, plus shipping costs
Part no. 3317304
Artikelbild Brush Set
With connector
BMW 2-valve Boxer models
€9.50
Prices incl. VAT, plus shipping costs
Part no. 1231480S
1821625_1 Clamp
38mm
BMW R 65GS, R 80G/S, R 80ST

€19.95
Prices incl. VAT, plus shipping costs
Part no. 1821625
Artikelbild Oil pan distance ring
BMW 2-valve Boxer models
€139.00
Prices incl. VAT, plus shipping costs
Part no. 1113100
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 Clutch boot
Clutch pressure bearing
For BMW 2V, 4V, K models
€19.50
Prices incl. VAT, plus shipping costs
Part no. 2313731
Artikelbild Cross pipe
Chrome
BMW /5, /6, /7 models
€49.50
Prices incl. VAT, plus shipping costs
Part no. 1811638
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 Oil pressure switch
BMW 2v Boxer models from /6 on
€12.95
Prices incl. VAT, plus shipping costs
Part no. 6131414
Artikelbild Strainer Fuel tap
Karcoma
BMW 2-valve Boxer models
€9.50
Prices incl. VAT, plus shipping costs
Part no. 1612112
Artikelbild Shaft seal
Transmission Input 5 speed
BMW 2-valve Boxer models

€9.95
Prices incl. VAT, plus shipping costs
Part no. 2312726
Artikelbild Pivot cape
For swingarm
BMW 2-valve Boxer models

€7.50
Prices incl. VAT, plus shipping costs
Part no. 3317296
Artikelbild Crankshaft seal
BMW 2-valve models
Rear
€21.95
Prices incl. VAT, plus shipping costs
Part no. 1111739
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 Clutch disc
MCC600 Lucas
BMW 2v Boxer models from 9/80 on

€89.50
Prices incl. VAT, plus shipping costs
Part no. 2121512L
Artikelbild Gasket idle switch
5-speed transmission
BMW 2v Boxer models

€1.45
Prices incl. VAT, plus shipping costs
Part no. 6131262
Artikelbild Fuel hose braided
6mm, fabric-covered
BMW 2-valve Boxer models

€9.95
Prices incl. VAT, plus shipping costs
Part no. 1311827
Artikelbild Spark plug Bosch
WR7DC
BMW 2v Boxer models

€5.70
Prices incl. VAT, plus shipping costs
Part no. 1212485
Artikelbild Carb gasket Set

BING carburator
64/26, 64/28, 64/32, 94/40
BMW 2-valve Boxer models
Without diaphragm
€19.95
Prices incl. VAT, plus shipping costs
Part no. 1311951
Artikelbild Valve cover Classic
BMW 2-valve Boxer models
€49.75
Prices incl. VAT, plus shipping costs
Part no. 1112240
Customers also viewed
Artikelbild Clamping ring
38mm
BMW 2-valve Boxer models

€11.95
Prices incl. VAT, plus shipping costs
Part no. 1821586
Artikelbild Manifold
38mm Chrome
BMW /5, /6, /7 models up to 9/80
Left side


€198.00
Prices incl. VAT, plus shipping costs
Part no. 1811434
Artikelbild Manifold
38mm Chrome
BMW /5, /6, /7 models up to 9/80
Right side


€198.00
Prices incl. VAT, plus shipping costs
Part no. 1811433
NEW
1814181_1 Manifold
Chrome
BMW R 80, R 100 Monolever models
Left side

€186.00
Prices incl. VAT, plus shipping costs
Part no. 1814181
Artikelbild Alternator rotor
New part
BMW 2-valve Boxer models

€129.00
Prices incl. VAT, plus shipping costs
Part no. 1231641
Artikelbild Exhaust Thread Cutting Tool
BMW 2-valve Boxer models
M52x2
€99.80
Prices incl. VAT, plus shipping costs
Part no. 1899270
Artikelbild Indicator light panel GS
BMW 65GS, R 80G/S, R 80GS,
R 100GS, R 80GS Basic
€59.00
Prices incl. VAT, plus shipping costs
Part no. 6214756
Artikelbild Muffler
Chrome
BMW R 80ST and R 65GS

€329.00
Prices incl. VAT, plus shipping costs
Part no. 1812966
Artikelbild Exhaust star nut
BMW /7, Monoelver, Paralever models
With short fins
€39.95
Prices incl. VAT, plus shipping costs
Part no. 1821721
Artikelbild Cross pipe
Chrome
BMW /5, /6, /7 models
€49.50
Prices incl. VAT, plus shipping costs
Part no. 1811638
Artikelbild Star Nut Wrench
BMW 2-valve Boxer models
In shop quality
€49.35
Prices incl. VAT, plus shipping costs
Part no. 1821699
Artikelbild Crankshaft seal
BMW 2-valve models
Rear
€21.95
Prices incl. VAT, plus shipping costs
Part no. 1111739
4663174_1 Battery cover
Right side
BMW R 45, R 65
€37.20
Prices incl. VAT, plus shipping costs
Part no. 4663174
Artikelbild Tail light / Rear light
BMW R 65GS, R 80G/S, R 80GS, R 80ST, R 100GS, R 80GS Basic
€79.00
Prices incl. VAT, plus shipping costs
Part no. 6321025
Artikelbild Pressure ring
BMW R 100S, R 100RS, R 100RT up to 9/80
For exhaust 40mm
€9.90
Prices incl. VAT, plus shipping costs
Part no. 1821448
Artikelbild Cylinder head gasket
BMW 2-valve Boxer 1000cc and
Power Kit 860cc, Power Kit 1000cc
€12.90
Prices incl. VAT, plus shipping costs
Part no. 1112715
Artikelbild Float
BING carburator 64/26, 64/28, 64/32, 94/40
BMW 2-valve Boxer models
€25.80
Prices incl. VAT, plus shipping costs
Part no. 1311766
Artikelbild Indicator light cover
With symbols
BMW R 65GS, R 80G/S, R 80GS, R 100GS, R 80GS Basic
€27.95
Prices incl. VAT, plus shipping costs
Part no. 6221754
Artikelbild Exhaust Thread Cutting Tool
For BMW R 45, R 65 models, R 69S
M48x2
€99.80
Prices incl. VAT, plus shipping costs
Part no. 1899250
Artikelbild Silencer
Chrome
BMW R 65GS
€696.00
Prices incl. VAT, plus shipping costs
Part no. 1812457
Artikelbild Silencer
Chrome
BMW R 80ST, R 80G/S PD

€796.00
Prices incl. VAT, plus shipping costs
Part no. 1812965
Artikelbild Silencer
Black chrome
BMW R 65GS, R 80G/S
€739.00
Prices incl. VAT, plus shipping costs
Part no. 1812018
Artikelbild Muffler
Black chrome
BMW R 65GS, R 80G/S, R 80G/S PD
€349.00
Prices incl. VAT, plus shipping costs
Part no. 1812017
Artikelbild Brake disc 2-2 perforation
Siebenrock product
BMW /6, /7 models, R 65LS
€219.00
Prices incl. VAT, plus shipping costs
Part no. 3411566
Artikelbild Mirror plastic
BMW Paralever Modelle
Short Left and right side
€42.50
Prices incl. VAT, plus shipping costs
Part no. 5116078
Artikelbild Exhaust nut
BMW /5, /6 models
With long fins
€36.90
Prices incl. VAT, plus shipping costs
Part no. 1811270
1812908_1 Silencer Hoske Set
Chrome
BMW /5, /6, /7 models
38mm


€398.00
Prices incl. VAT, plus shipping costs
Part no. 1812908
4663173_1 Battery cover
Left side
BMW R 45, R 65
€37.20
Prices incl. VAT, plus shipping costs
Part no. 4663173
4663021_1 Battery cover
Right side
BMW /6 and /7 models
Right side
€39.90
Prices incl. VAT, plus shipping costs
Part no. 4663021
4663022_1 Battery cover
Left side
BMW /6 and /7 models

€39.90
Prices incl. VAT, plus shipping costs
Part no. 4663022
Artikelbild Fork gaiter
11 ribs
BMW R 80GS, R 100GS models
€39.95
Prices incl. VAT, plus shipping costs
Part no. 3142220
Artikelbild Fork gaiter
15 ribs
BMW R 65GS, R 80G/S, R 80G/S PD
€13.95
Prices incl. VAT, plus shipping costs
Part no. 3142666
Artikelbild Bearing shell conrod
BMW 2v Boxer models
Standard sized
€12.50
Prices incl. VAT, plus shipping costs
Part no. 1124460
Artikelbild Clutch cable
BMW 2-valve Boxer models
High handlebar

€42.95
Prices incl. VAT, plus shipping costs
Part no. 3273956
1311409_1 Tension spring for choke lever
BING carburetor 94/40
BMW 2V Boxer Models
€9.15
Prices incl. VAT, plus shipping costs
Part no. 1311409
1311702_1 Needle nozzle 2.66
BING carburetor
64/26, 64/28, 64/32, 94/40
BMW 2V Boxer models
€11.40
Prices incl. VAT, plus shipping costs
Part no. 1311702
1311321_1 Nozzle needle
BING carburetor 94/40
BMW R 80, R 100 models
€11.40
Prices incl. VAT, plus shipping costs
Part no. 1311321
NEW
1814010_1 Manifold
Black chrome
BMW R 65LS
Right side

€219.00
Prices incl. VAT, plus shipping costs
Part no. 1814010
NEW
1811442_1 Manifold
40mm Chrome
BMW R 100RS, R 100RT, R 100S
Right side

€198.00
Prices incl. VAT, plus shipping costs
Part no. 1811442
NEW
Artikelbild Bearing shell connecting rod
+0,25 1.Oversize
BMW 2V Boxer models
€12.50
Prices incl. VAT, plus shipping costs
Part no. 1124419
Viewed