Kb Pistons Forged Alloy Piston - Pistons Tc96 TO 103ci 9.5:1 .010 — Harley-Davidson (2007-2017)

KB Pistons forged alloy pistons for Twin Cam 96 to 103 cubic inch engines at 9.5:1 compression, made from 4032 forged alloy with 11% silicon content for superior crack resistance under detonation. Designed for street and race applications with power adders like NOS or turbo boost, sold as a pair with all rings, wrist pins, and locks included.

Features

• 4032 forged alloy with 11% silicon content
• Superior crack resistance under detonation and pre-ignition
• Coated skirts on all Twin Cam and Sportster applications
• Includes all rings, wrist pins, and wrist pin locks
• 9.5:1 compression ratio
• .010 inch oversized

Specifications

• Brand: KB Pistons
• Manufacturer Part #: KB907C.010
• UPC: 800745153166
• Engine Application: Twin Cam 96 to 103 cubic inch
• Compression Ratio: 9.5:1
• Oversizing: .010 inch
• Quantity: Pair (2 pistons)
• Weight: 2.6 lbs
• Country of Origin: Mexico

Fitment

Fits Harley-Davidson Twin Cam 96 and 103 cubic inch engines in street and race applications with power adders such as NOS or turbo boost.

Frequently Asked Questions

What's included in this piston kit?

A pair of forged pistons plus all rings, wrist pins, and wrist pin locks needed for installation. You will need 2 wrist pin locks per piston.

Can I use these pistons without power adders?

Yes — while designed for boosted applications, KB forged pistons are suitable for street or naturally aspirated race use as well.

Are replacement rings available separately?

Yes, but replacement rings are special order. Contact the manufacturer or your dealer for availability and lead time.

Will these pistons fit my Sportster?

This part number is for Twin Cam 96 to 103 cubic inch engines. Sportster pistons use a different part number — verify your engine displacement and model before ordering.

What's the .010 in the part number?

That indicates .010 inch oversizing — these pistons are slightly larger than stock to restore proper ring clearance in a bored engine.