Kb Pistons Hypereutectic Cast Piston - Pistons Tc88 TO 95ci 9.3:1 .010 — Harley-Davidson Road King, Road King Classic, Electra Glide (1999-2007)

KB Pistons Hypereutectic Cast Piston for Twin Cam 88 to 95 cubic inch engines at 9.3:1 compression ratio with .010 oversized bore. Cast from a 16% silicon hypereutectic alloy that resists thermal expansion and delivers tight piston-to-wall clearances, quiet running, and extended ring life in air-cooled Harley engines.

Features

• 16% silicon hypereutectic alloy
• Low thermal expansion rate
• Tight piston-to-cylinder clearances
• Quiet engine operation
• Reduced wear on rings and cylinder walls
• 9.3:1 compression ratio
• 0.010 in overbore

Specifications

• Brand: KB Pistons
• Manufacturer Part #: KB348.010
• UPC: 800745068439
• Compression Ratio: 9.3:1
• Overbore: .010 in
• Engine Application: Twin Cam 88 to 95 cubic inch
• Length: 9.5 in
• Width: 4.8 in
• Height: 4.6 in
• Weight: 2.5 lbs
• Country of Origin: Mexico

Fitment

Fits air-cooled Twin Cam 88 to 95 cubic inch engines. Best suited for stock or mild compression ratios up to 10.5:1 running on pump fuel.

Frequently Asked Questions

What engine does this piston fit?

Twin Cam 88 to 95 cubic inch air-cooled engines at 9.3:1 compression ratio with .010 overbore.

Why use hypereutectic pistons instead of forged?

Hypereutectic pistons offer better ring seal, quieter operation, and lower cost than forged — ideal for stock to mild builds on pump gas.

Is this a single piston or a set?

This is a single piston. Twin Cam engines require two pistons per rebuild kit.

Can I run this piston on race fuel or boost?

These are rated for stock to mild compression (up to 10.5:1) on pump fuel. Higher compression or forced induction requires a forged piston.

Will this fit my 103 cubic inch (1700cc) engine?

No — this part is for 88 to 95 cubic inch Twin Cam engines. A 103 requires a different piston and ring set.