Kb Pistons Forged Alloy Piston - Pistons Tc96 TO 103ci 9.5:1 STD — Harley-Davidson (2007-2017)

KB Pistons forged alloy pistons for Twin Cam 96 to 103ci engines at 9.5:1 compression, built from 4032 forged alloy with 11% silicon content for superior crack resistance under detonation. Designed for street or race applications with power adders like NOS or supercharger boost.

Features

• 4032 forged alloy with 11% silicon content
• Superior crack resistance under detonation and pre-ignition
• Coated skirts on Twin Cam and Sportster applications
• All rings, wrist pins, and wrist pin locks included
• Sold as a pair

Specifications

• Brand: KB Pistons
• Manufacturer Part #: KB907C.STD
• UPC: 800745153128
• Compression Ratio: 9.5:1
• Displacement Range: Twin Cam 96 to 103ci
• Weight per Pair: 2.5 lbs
• Country of Origin: Mexico

Fitment

Fits Twin Cam engines from 96 to 103 cubic inches at 9.5:1 compression ratio. Designed for street or race applications with power adders such as NOS or supercharger boost.

Frequently Asked Questions

What's included with these pistons?

Rings, wrist pins, and wrist pin locks are all included. Pistons are sold as a pair.

Do I need additional wrist pin locks?

Yes — you will need to order 2 wrist pin locks per piston (4 total for a pair).

Can I use these in a stock Twin Cam engine?

Yes, but they are engineered for street or race applications with power adders like NOS or boost. For stock applications, consult KB Pistons for the best spec.

Are replacement rings available separately?

Yes, but replacement rings are special order. Contact your dealer for availability and lead times.