Dowel pin, transmission & crankcase - Crankcase to crankcase (2): 99-17 Twin Cam; 18-23 Softail; 17-23 Touring. Transmission to crankcase (2): 99-17 Twin Cam; 17-23 Touring; 18-23 Softail. 8081897 Big Sucker™ Stage I Air

Big Sucker™ Stage I Air Filter Kit with Synthetic FilterEach hidden breather is o-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine breathing

which are covered by a silicone jacket

including metal casing ends

Used to mount rocker covers to the cylinder heads

Cover is hand stitched heavy-duty vinyl and is fastened to underside of seat pan with rivets for durability

Dowel pin, transmission & crankcase - Crankcase to crankcase (2): 99-17 Twin Cam; 18-23 Softail; 17-23 Touring. Transmission to crankcase (2): 99-17 Twin Cam; 17-23 Touring; 18-23 Softail. 8081897 Big Sucker™ Stage I AirUsed between transm. to crankcase & crankcase to crankcase.