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Exhaust Nut 50mm - BMW Airhead; 18 21 1 234 721 / EnDuraLast
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Part #: EXNut721

New Aluminum 52mm Exhaust Nut for 38mm headers - purchase two for a matching set.

Vehicle Manufacturer: BMW
Application: BMW Airhead Models
Make / Model: BMW R60, R75, R80, R100
Model Years: 1976-1995
Manufacturer Part # 18 21 1 234 721

(See APPLICATION TABLE tab BELOW to verify vehicle fitment)


Brand:
BMW List Price $31.92
EME Price $31.13
BUY NOW $27.50
You save $4.42!

Quantity in Stock:70
Part #: EXNUT721
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Description
Application Table
 
Replace your old worn or damaged exhaust nuts with a classy new looking part!

Use an exhaust nut wrench to loosen and tighten these nuts otherwise you may damage the fins - see Part No EXNut-Wrench758

Do NOT install new nut without first applying copper (not silver) anti-seize on the thread - see our Part No:
LOC8008.
NOTE: Exhaust nuts must be spun off every 10,000 miles during a major service for application of antiseize.

When struggling to remove seized nuts, heat them up to 300degF to loosen them.

In extreme cases you may have to cut the nut off being careful not to damaged the thread on the cylinder head.The nut can be cut off with a hack saw or dremel. Cut the nut and only saw down "to the threads" of the head. Now hit a chisel in the cut to try separate the two pieces. If this does not work, then make a second cut on the opposite side of the and use the chisel to separate the nut from the cylinder head.
Installation Tips - Courtesy Brook Reams

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