New
V Force 3
Reed Valve Assembly
Qty: 1 Kit
Fits:

KDX175-A1 (1980)
KDX175-A2 (1981)
KDX175-A3 (1982)
KDX250-A1 (1980)
KDX250-B1 (1981)
KDX400-A1 (1979)
KDX400-A2 (1980)
KDX420-B1 (1981)
KDX450-A1 (1982)

May Fit Others

Please Note- 
Some models may require a reed spacer and/or porting for clearance