OTR Filters Kart Conical Air Filter Wrap - Conical - 3.06 in Base Diameter - 4.25 in in Top Diameter - Black CHE542AB All QA1 springs are lifetime

All QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions

9mm Breather

625 in Guide OD

35 and 40 Spline

Part Number: 241-107

OTR Filters Kart Conical Air Filter Wrap - Conical - 3.06 in Base Diameter - 4.25 in in Top Diameter - Black CHE542AB All QA1 springs are lifetimeProduct Description: Air Filter Wrap Conical 3. 06 in Base Diameter 4. 25 in in Top Diameter OTR Logo Polyester Black Sold Individually US based OTR Filters was founded on developing air filtration solutions that help engines breathe easier, run faster, and perform at their best. With a wide range of filters for everything from street performance to hardcore racing, OTR Filters combines excellent performance with maximum engine protection.