Exhaust star nut

€39.95

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

part no.: 1821721

This is a high quality replacement star nut for the exhaust headers. Price per piece. TIP... more

Exhaust star nut

This is a high quality replacement star nut for the exhaust headers.
Price per piece.

TIP
Please order the suitable clamping and pressure rings at the same time.

Clamping ring 38mm art.no. 1821586
Thrust ring 38mm art.no. 1821585

Clamping ring 40mm art.no. 1821449
Pressure ring 40mm art.no. 1821448.

Spare part for the classic BMW airhaed models
R 60/7 , R 75/7, R 80/7, R 80RT, R 80, R 100/7, R 100S, R 100RS, R 100RT, 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 80, R 80RT, R 100RS, R 100RT

Compare 18211234721 / 18-21-1-234-721

Information on product safety

Fits for BMW R2V:

R 60/7 1976-80, R 75/7 1976-77, R 80 up to 84, R 100 up to 84, R 80 G/S 1980-87, R 80ST 1982-84, R 80 Mono from 85 on, R 100 RS/RT Mono from 87 on, R 80GS 1987-94, R 100GS 1987-94, R 80R 1991-95, R 100R 1991-96

Read, write and discuss reviews... more

Close menu

Customer evaluation for "Exhaust star nut"

Write an evaluation

Evaluations will be activated after verification.

Pressure ring
Exhaust 38mm

BMW 2-vakve Boxer models

€9.90

Prices incl. VAT, plus shipping costs

Part no. 1821585

Clamping ring
38mm

BMW 2-valve Boxer models

€11.95

Prices incl. VAT, plus shipping costs

Part no. 1821586

Valve cover gasket

BMW 2-valve Boxer models

€3.95

Prices incl. VAT, plus shipping costs

Part no. 1112426

Valve cover Classic

BMW 2-valve Boxer models

€49.80

Prices incl. VAT, plus shipping costs

Part no. 1112240

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

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

Fuel tap
Left side

BMW 2-valve Boxer models

€49.50

Prices incl. VAT, plus shipping costs

Part no. 1612113

Oil pan gasket

BMW 2-valve Boxer models

€6.95

Prices incl. VAT, plus shipping costs

Part no. 1113427

Cap nut stainless steel

BMW 2-valve Boxer models
For valve cover

€6.90

Prices incl. VAT, plus shipping costs

Part no. 1112330

Pushrod tube seal
18mm

BMW 2v Boxer models from 9/75 on

€3.95

Prices incl. VAT, plus shipping costs

Part no. 1132995

Steering head bearing

BMW 2V Boxer, K 2V, K 4V, F models

€21.90

Prices incl. VAT, plus shipping costs

Part no. 0711070

Fuel tap
Right side

BMW 2-valve Boxer models

€49.50

Prices incl. VAT, plus shipping costs

Part no. 1612114

Oilfilter Set
Mahle

BMW 2v Boxer models without oilcooler
OX37D two-piece

€14.30

Prices incl. VAT, plus shipping costs

Part no. 1142145

Valve guide

BMW 2V Boxer models
Not for R 45 and R 65

€14.30

Prices incl. VAT, plus shipping costs

Part no. 1112708

Bearing shell conrod

BMW 2v Boxer models
Standard sized

€13.20

Prices incl. VAT, plus shipping costs

Part no. 1124460

Exhaust Thread Cutting Tool

BMW 2-valve Boxer models
M52x2

€99.80

Prices incl. VAT, plus shipping costs

Part no. 1899270

Piston ring Set

BMW R 80 models
800cc Nikasil plated

€37.95

Prices incl. VAT, plus shipping costs

Part no. 1125398

Valve Cover Retro

BMW 2v Boxer models
Black Semi-matt

€89.90

Prices incl. VAT, plus shipping costs

Part no. 1112246

Airfilter
Mahle

BMW 2-valve Boxer models from 9/80 on
LX56

€25.25

Prices incl. VAT, plus shipping costs

Part no. 1372080

Exhaust nut

BMW R 45 and R 65 models

€28.65

Prices incl. VAT, plus shipping costs

Part no. 1821595

Diode board

BMW 2v Boxer models

€79.90

Prices incl. VAT, plus shipping costs

Part no. 1231062

Clutch disc

BMW 2v Boxer models from 9/80 on

€89.50

Prices incl. VAT, plus shipping costs

Part no. 2121512L

Star Nut Wrench

BMW 2-valve Boxer models
In shop quality

€49.35

Prices incl. VAT, plus shipping costs

Part no. 1821699

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

Strainer Fuel tap
Karcoma

BMW 2-valve Boxer models

€9.50

Prices incl. VAT, plus shipping costs

Part no. 1612112

Chain tensioner Set
Simplex

BMW 2V Boxer models

€97.00

Prices incl. VAT, plus shipping costs

Part no. 1131183

Exhaust nut

BMW /5, /6 models
With long fins

€38.95

Prices incl. VAT, plus shipping costs

Part no. 1811270

Clamping ring
Exhaust 40mm

BMW R 100S, R 100RS, R 100RT

€13.95

Prices incl. VAT, plus shipping costs

Part no. 1821449

Shaft seal
Transmission Input 5 speed

BMW 2-valve Boxer models

€9.95

Prices incl. VAT, plus shipping costs

Part no. 2312726

Sealing rings for inspection

BMW 2V Boxer models

€5.75

Prices incl. VAT, plus shipping costs

Part no. 0711333

Rubber mounts
Diode plate

BMW 2-valve Boxer models

€3.95

Prices incl. VAT, plus shipping costs

Part no. 1231131

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

Crankshaft seal

BMW 2-valve models
Rear

€21.95

Prices incl. VAT, plus shipping costs

Part no. 1111739

Crankshaft seal

BMW 2v Boxer models
Front

€6.80

Prices incl. VAT, plus shipping costs

Part no. 1114011

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

Clutch boot
Clutch pressure bearing

For BMW 2V, 4V, K models

€19.50

Prices incl. VAT, plus shipping costs

Part no. 2313731

Airfilter
Mahle

BMW 2-valve Boxer models up to 9/80
LX194

€13.25

Prices incl. VAT, plus shipping costs

Part no. 1372382

Pushrod tube
18mm

BMW 2v Boxer models from 9/75 on
Stainless steel

€24.90

Prices incl. VAT, plus shipping costs

Part no. 1111904

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

Oilfilter Set
Mahle

BMW 2v Boxer models with oilcooler
OX36D two-piece

€14.95

Prices incl. VAT, plus shipping costs

Part no. 1142146

Exhaust nut

BMW /5, /6 models
With long fins

€38.95

Prices incl. VAT, plus shipping costs

Part no. 1811270

Exhaust nut

BMW R 45 and R 65 models

€28.65

Prices incl. VAT, plus shipping costs

Part no. 1821595

Clutch boot
Clutch pressure bearing

For BMW 2V, 4V, K models

€19.50

Prices incl. VAT, plus shipping costs

Part no. 2313731

Pressure ring
Exhaust 38mm

BMW 2-vakve Boxer models

€9.90

Prices incl. VAT, plus shipping costs

Part no. 1821585

Clamping ring
38mm

BMW 2-valve Boxer models

€11.95

Prices incl. VAT, plus shipping costs

Part no. 1821586

NEW

Manifold
40mm Chrome

BMW R 100RS, R 100RT, R 100S
Left side

€176.90

Prices incl. VAT, plus shipping costs

Part no. 1811441

NEW

Alternator

BMW /6, /7 models
350W Lithium style battery compatible

€795.00

Prices incl. VAT, plus shipping costs

Part no. 1231107L

NEW

Gasket Hoske exhaust
40mm -->38mm

For manifold 38mm
BMW /5, /6, /7 models

€19.95

Prices incl. VAT, plus shipping costs

Part no. 1821656

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

Star Nut Wrench

BMW 2-valve Boxer models
In shop quality

€49.35

Prices incl. VAT, plus shipping costs

Part no. 1821699

Carb gasket Set
BING carburator 64/26, 64/28, 64/32, 94/40

for 2 carburator
BMW 2-valve Boxer models

€99.50

Prices incl. VAT, plus shipping costs

Part no. 1311051

Complete exhaust system
Black chrome

BMW R 80G/S

€1,690.00

Prices incl. VAT, plus shipping costs

Part no. 1812010

NEW

Manifold
40mm Chrome

BMW R 100RS, R 100RT, R 100S
Right side

€176.90

Prices incl. VAT, plus shipping costs

Part no. 1811442

Diaphragm spring

BMW 2-valve Boxer models from 9/80 on

€79.00

Prices incl. VAT, plus shipping costs

Part no. 2121353

Transmission bearing Set
5-speed gearbox

BMW 2-valve Boxer models

€139.00

Prices incl. VAT, plus shipping costs

Part no. 2312996

Battery cover
Left side

BMW R 80G/S, R 80G/S PD, R 65GS

€78.00

Prices incl. VAT, plus shipping costs

Part no. 4663639

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

Oil pressure switch

BMW 2v Boxer models from /6 on

€12.95

Prices incl. VAT, plus shipping costs

Part no. 6131414

Handlebar GS

BMW G/S and GS models

€85.90

Prices incl. VAT, plus shipping costs

Part no. 3271272

Rubber grommet for clutch cable

BMW 2-valve Boxer models

€4.90

Prices incl. VAT, plus shipping costs

Part no. 3272038

Removing tool
Alternator

BMW 2-valve Boxer models

€6.90

Prices incl. VAT, plus shipping costs

Part no. 1231699

Dust seal

BMW R 80GS, R 100GS models
For fork

€24.90

Prices incl. VAT, plus shipping costs

Part no. 3142065

Gasket kit carburetor
BING carburetor 94/40

BMW 2V Boxer Models
With diaphragm

€99.50

Prices incl. VAT, plus shipping costs

Part no. 1311902

NEW

Mounting ring for fork gater

BMW R 65GS, R 80G/S, R80G/S PD

€8.95

Prices incl. VAT, plus shipping costs

Part no. 3142669

Gasket Hoske exhaust
40mm

BMW R 45, R 65
35x39,5x32

€13.95

Prices incl. VAT, plus shipping costs

Part no. 1812456

NEW

Intake rubber carburetor
D=42mm/52mm

BMW 2-valve Boxer models

€12.90

Prices incl. VAT, plus shipping costs

Part no. 1372654

T-piece
For fuel hose 6mm

BMW 2-valve Boxer models

€9.95

Prices incl. VAT, plus shipping costs

Part no. 1311083

Gearbox gasket Set

BMW 50/5, R 60/5, R 75/5
4-speed gearbox

€65.90

Prices incl. VAT, plus shipping costs

Part no. 2300911

NEW

Sealing cuff
Ball head gear lever

BMW 2-valve Boxer models

€1.95

Prices incl. VAT, plus shipping costs

Part no. 2341149

Ring winding / strator
20A For Bosch alternator

BMW 2v Boxer models

€149.00

Prices incl. VAT, plus shipping costs

Part no. 1231041

Headlight

BMW R 65GS, R 80G/S, R 80GS, R 100GS, R 80GS Basic
LED technology

€349.00

Prices incl. VAT, plus shipping costs

Part no. 6312022L

Aternator housing
107mm

BW 2v Boxer models from 9/77 on

€139.50

Prices incl. VAT, plus shipping costs

Part no. 1231002

Speedometer GS2 km version

BMW R 65GS, R 80 G/S, R 80GS,
R 100GS, R 80GS Basic
Plug and Play

€319.00

Prices incl. VAT, plus shipping costs

Part no. 6212646

Ignition coil 6V

BMW 2v Boxer models up to 9/80

€69.90

Prices incl. VAT, plus shipping costs

Part no. 1213452

Valve adjust screw "Sport"
Set

BMW 2-valve Boxer models

€98.00

Prices incl. VAT, plus shipping costs

Part no. 1133330

Power Kit 860cc
Plug & Play

BMW R 65 9/80 on, R 65LS, R 65 Monolever 48hp

€1,179.00

Prices incl. VAT, plus shipping costs

Part no. 1100870

Brush holder plate
For alternator

BMW 2v Boxer models

€74.25

Prices incl. VAT, plus shipping costs

Part no. 1231003

Exhaust Thread Cutting Tool

BMW 2-valve Boxer models
M52x2

€99.80

Prices incl. VAT, plus shipping costs

Part no. 1899270

Oilfilter Set
Mahle

BMW 2v Boxer models with oilcooler
OX36D two-piece

€14.95

Prices incl. VAT, plus shipping costs

Part no. 1142146

Manifold
Chrome

BMW R 80ST
Right side

€219.00

Prices incl. VAT, plus shipping costs

Part no. 1811844

Engine Parts

Drive train

Electric

Chassis

Exhaust

Luggage

Krauser 4V MKM

Miscellaneous

Used parts

search queries

Exhaust star nut

BMW /7, Monoelver, Paralever models
With short fins