Kb Pistons Forged Alloy Piston - Pistons Tc88 TO 95ci 10.5:1 STD — Harley-Davidson Road King, Road King Classic, Electra Glide (1999-2007)

KB Pistons forged alloy piston for Twin Cam 88 to 95ci engines at 10.5:1 compression ratio, standard size. Made from 4032 forged alloy with 11% silicon content for superior crack resistance under detonation, suitable for street or race applications with power adders like NOS or boost.

Features

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

Specifications

• Brand: KB Pistons
• Manufacturer Part #: KB906C.STD
• UPC: 800745152763
• Compression Ratio: 10.5:1
• Engine Size: Twin Cam 88 to 95ci
• Size: Standard
• Length: 5.9 in
• Width: 5.8 in
• Height: 5.7 in
• Weight: 2.6 lbs
• Country of Origin: Mexico

Fitment

Fits Harley-Davidson Twin Cam 88 to 95ci engines at 10.5:1 compression ratio in street or race applications with power adders.

Frequently Asked Questions

Are rings and wrist pins included?

Yes — all rings, wrist pins, and wrist pin locks are included with the piston pair.

How many wrist pin locks do I need per piston?

You need two locks per piston. Since these are sold as a pair, order four locks total (sold individually).

Can I use these with forced induction like a turbo or supercharger?

Yes — KB forged pistons are designed to handle power adders including NOS, boost, and turbo applications without cracking.

Are these street-legal or race-only?

These pistons work for both street and race builds. The coated skirts reduce wear in daily-driven applications.