TRX 400EX 400X XR 400R Stock Cylinder Piston Top End Rebuild Kit Performance Cam Wolverine YXE70 A: Wiseco forged pistons offer

A: Wiseco forged pistons offer increased strength

but we cannot guarantee a specific brand — only what is currently in stock

BPRATV is an authorized distributor and all applicable manufacturer warranties apply

The difference is night and day

Years 2009–2024

TRX 400EX 400X XR 400R Stock Cylinder Piston Top End Rebuild Kit Performance Cam Wolverine YXE70 A: Wiseco forged pistons offer4606M08500, C7825, 1051 3, 12100 KCY 670, 71016 4,4667M08900, 1043 2, C7826, 1051 3, 12100 KCY 670, 71016 4, 13111 KCY 670, 4606M08500, C7826, 71016 4, 13111 KCY 670, 12251 HN1 003, 12209 KL4 005, 12191 KCY 673, 13011 KCY 670, 90601 KA5 000, 13103 KCY 670, C7825, 808894, 4040, 4606M08700, C7826, H0402027S, 808829, M2001, 8604D200, 8604D400,OE Part Numbers 1 12100 HN1 A70, 12191 KCY 672 OE Part Numbers 2 13011 KCY 670, 13101 KCY 670 OE Part Numbers 3