Vertex Complete Gasket Kit With SealsFits Models450 EXC-F (20-23); 450 EXC-F Six Days (20-22); 450 XCF-W (23); 500 EXC-F (20-23); 500 EXC-F Six Days (20-23); FE 450 (20-21,23); FE 450 Heritage Edition (23); FE 501 (20-24); FE 501 Heritage Edition [500cc] (23); FE 501 S (20-23)