B&M/TBS blower snout seal. RBS stocks a large selection of seals for the mini blowers on all of the blower snouts. This seal is made from Buna rubber and will give thousands of miles of service on your blown hot rod.
Seal measures for B&M 420 Mega blower 2.450" O.D. x .310" thick x 1.375" shaft and a B&M 144/174/250 measures 2.068" O.D. x .250" thick x 1.250" shaft.