S&S Cycle 910-0025 S&S Cycle 99-06 BT Replacement 4-1/8in Bore Cylinder & Piston Kit w/ Stock Bolt Pattern

This replacement cylinder and piston kit contains S&S 4-1/8" bore cylinders and forged pistons, head and base gaskets. The cylinders are machined with the stock bolt pattern and are intended to replace cylinders of an S&S 111" Hot Set Up Kit for stock crankcases. The finish is a durable wrinkle black powder coat.
**Crankcases must be bored to accept the larger 4-1/8" bore cylinders.

Fitment

Year(s)	Make	Model Code	Model
1999-2006	Harley-Davidson	—	Big Twin