BILLET DRIVE COUPLERS SXR1500
R&D has completely revised the SXR 1500 engine coupler/damper system to an updated design proven to work reliably with up to 400 H.P.! R&D started off with the KAWASAKI Ultra 310X damper, and worked from there re-designing the lug profile to offer a precision fit to the damper. The R&D billet aluminum design allows perfect engine to driveshaft coupler alignment, and delivers maximum strength and balance for high horsepower Kawasaki four stroke engines. The couplers are available with or without the Kawasaki damper. NOTE: The Kawasaki Ultra 310 damper handles 310 H.P. for years with zero wear and tear which made it a first choice for dampers. Fits SXR 1500 and STX-15F. Note; Pictured is Pt. # 611-01501 with Ultra 310 Damper installed.