S&S steel rotary breather gears have better dimensional stability than plastic gears, especially at high temperatures. Abrasive particles are less likely to get embedded in a steel gear body, embedded particles can damage the crankcase breather gear cavity. A screen provides better protection than a slotted gear, small particles are stopped from getting to the gear cavity where they may damage the gears and oil pump. S&S steel rotary breather gear features a welded-in screen and larger diameter holes, providing improved air flow/oil scavenging from the flywheel cavity. Crankcase flywheel cavity vacuum and oil scavenging are further improved by optimized breather window timing. Breather oil trap scavenging is significantly improved by increased scavenge port duration.
Features:
All steel construction, superior dimensional stability, abrasion
Welded-in screen
Higher flow than stock
Elongated breather pocket scavenge hole for increased suction
Standard diameter for replacement or new builds
Product Note:
Specification
Details
Country of Origin
USA
Material
Steel
OEM Reference
Varies (make selection above)
Size Over Standard
Varies (make selection above)
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
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