The PROX piston for Yamaha RD and YFZ Banshee 350 is designed for optimum reliability and performance on 350 cm³ 2-stroke engines. Made from low-expansion, low-friction cast aluminum alloy, it guarantees excellent compliance with the manufacturer's recommended piston/cylinder clearances (0.02mm). High-precision CNC machining ensures consistent quality and long life, while the molybdenum skirt coating reduces friction, improves lubrication and enhances wear resistance. Featuring two intake ports and two specific cut-outs for reed valves, this standard compression ratio piston is supplied as a complete kit including piston, rings, circlips and pin, ready to be fitted for a reliable, high-performance engine rebuild.

Available in 9 sizes:

B: 64.25
C: 64.50
D: 64.75
E: 65
F: 65.25
I: 65, 50
J: 65.75
K: 66

L: 66,50

Fits on:

YAMAHA RD 350 1975 AMERICA

YAMAHA RD 350 1975 EUROPE

YAMAHA RD 350 1974 AMERICA

YAMAHA RD 350 1974 EUROPE

YAMAHA RD 350 1973 AMERICA

YAMAHA RD 350 1973 EUROPE

YAMAHA RD 350 LC 1991 YPVS EUROPE

YAMAHA RD 350 LC 1990 YPVS EUROPE

YAMAHA RD 350 LC 1989 YPVS EUROPE

YAMAHA RD 350 LC 1989 YPVS EUROPE

YAMAHA RD 350 LC 1988 YPVS EUROPE

YAMAHA RD 350 LC 1988 YPVS EUROPE

YAMAHA RD 350 LC 1987 YPVS EUROPE

YAMAHA RD 350 LC 1987 YPVS EUROPE

YAMAHA RD 350 LC 1987 YPVS AMERICA

YAMAHA RD 350 LC 1986 YPVS EUROPE

YAMAHA RD 350 LC 1986 YPVS EUROPE

YAMAHA RD 350 LC 1986 YPVS AMERICA

YAMAHA RD 350 LC 1985 YPVS EUROPE

YAMAHA RD 350 LC 1985 YPVS AMERICA

YAMAHA RD 350 LC 1985 YPVS EUROPE

YAMAHA RD 350 LC 1984 YPVS EUROPE

YAMAHA RD 350 LC 1984 YPVS AMERICA

YAMAHA RD 350 LC 1983 YPVS EUROPE

YAMAHA RD 350 LC 1983 YPVS AMERICA

YAMAHA RD 350 LC 1982 AMERICA

YAMAHA RD 350 LC 1982 EUROPE

YAMAHA RD 350 LC 1981 AMERICA

YAMAHA RD 350 LC 1981 EUROPE

YAMAHA RD 350 LC 1980 EUROPE

YAMAHA RD 350 LC R 1992 YPVS EUROPE

YAMAHA YFZ 350 2006 Banshee ALL

YAMAHA YFZ 350 2005 Banshee ALL

YAMAHA YFZ 350 2004 Banshee ALL

YAMAHA YFZ 350 2003 Banshee ALL

YAMAHA YFZ 350 2002 Banshee ALL

YAMAHA YFZ 350 2001 Banshee ALL

YAMAHA YFZ 350 2000 Banshee ALL

YAMAHA YFZ 350 1999 Banshee ALL

YAMAHA YFZ 350 1998 Banshee ALL

YAMAHA YFZ 350 1997 Banshee ALL

YAMAHA YFZ 350 1996 Banshee ALL

YAMAHA YFZ 350 1995 Banshee ALL

YAMAHA YFZ 350 1994 Banshee ALL

YAMAHA YFZ 350 1993 Banshee ALL

YAMAHA YFZ 350 1992 Banshee ALL

YAMAHA YFZ 350 1991 Banshee ALL

YAMAHA YFZ 350 1990 Banshee ALL

YAMAHA YFZ 350 1989 Banshee ALL

YAMAHA YFZ 350 1988 Banshee ALL

YAMAHA YFZ 350 1987 Banshee ALL

YAMAHA YFZ 350 LE 2004 Banshee Limited Edition ALL

YAMAHA YFZ 350 LE 2003 Banshee Limited Edition ALL

YAMAHA YFZ 350 MNH 1997 Banshee Maine & New Hampshire AMERICA

YAMAHA YFZ 350 MNH 1996 Banshee Maine & New Hampshire AMERICA

YAMAHA YFZ 350 MNH 1995 Banshee Maine & New Hampshire AMERICA

YAMAHA YFZ 350 MNH 1994 Banshee Maine & New Hampshire AMERICA

YAMAHA YFZ 350 MNH 1993 Banshee Maine & New Hampshire AMERICA

YAMAHA YFZ 350 MNH 1992 Banshee Maine & New Hampshire AMERICA

YAMAHA YFZ 350 MNH 1991 Banshee Maine & New Hampshire AMERICA

YAMAHA YFZ 350 SE 2006 Banshee Limited Edition ALL

YAMAHA YFZ 350 SE 2005 Banshee Limited Edition ALL

YAMAHA YFZ 350 SP 2006 Banshee Limited Edition ALL