Wiseco piston set is .040 oversize and is for a 3-1/2" bore. Piston set has a compression of 7:1 and includes rings.

VT No: 11-9737
Wiseco piston set is .040 oversize and is for a 3-1/2" bore. Piston set has a compression of 7:1 and includes rings.
**Note:Run engine at moderate speeds for at least 500 miles, avoiding excessive running in lower gears, in order to properly break-in new pistons and rings.
Fits:
FL 1978-1984
FX 1978-1984
FLT 1979-1983
FXR 1982-1983
UOM: 1 - KIT
Country of Origin: USA

Size: .040
Manufacturer: Wiseco
2018 Catalog pages: 531

2017 Catalog Page: 535

V-Twin Manufacturing Part Number: 11-9737
Manufacturer: Wiseco
Manufacturer Part Number: K1617

Harley-Davidson & Indian OEM Cross Reference Part Numbers:            

Replacement Items:
11-9765 - 3-1/2" Evolution Piston Ring .040 Oversize

Detailed Instructions: CLICK HERE!