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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
and XR400R Models & Years
Dedicated forgings and additional lightening operations allow for optimized strength-to-weight ratio
Replaces Polaris OEM part numbers: 5138254
BPRATV 421cc Athena Wiseco Pro Design Cometic Complete 68mm Big Bore Stroker Kit
3 angle cut valves and valve seats
Rhino Viking Grizzly 700 Cylinder Piston Rebuilt Stock Bore Top End Rebuild Kit General 1000 and XR400R Models & YearsM1039, 20004, C3142, 2BG 11631 00 00, 3B4 11311 10 00, EC485 069, P400485850156, P400485850078, P400485420602, P400485400216, P400485600078, P400485160199, P400485160198, M1094, M1045, 4902M10200, 4903M10200, C3230, M1120 BP, 80 82450, 80 82450, 1S3 11351 00 00, 3B4 11181 00 00, 3B4 14714 00 00, 5H0 12119 00 00, 1S3 11631 10 00, 5VK 11633 00 00, 1S3 11603 10 00, 93450 24154 00, 4DW 12213 00 00 YAMAHA RAPTOR 102MM STOCK BORE TOP END KIT WITH HIGH