Exhaust Nut 50mm BMW R Airheads

A new high quality replacement aluminum 52mm exhaust nut for your BMW R Airhead 38mm headers. - sold individually. Purchase two for a matching set.

Specs:

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