Kb Pistons Cast Sportster Piston - Pistons XL 54ci 9.0:1 .030 — Harley-Davidson Sportster 883, Sportster 883 Hugger, Super Low (1986-2019)

KB Pistons cast Sportster piston for 54 cubic inch (XL) engines with 9.0:1 compression ratio and .030 oversized bore. Direct-fit replacement piston for Harley-Davidson Sportster rebuilds and performance upgrades.

Features

• Cast piston construction
• 9.0:1 compression ratio
• 0.030 inch oversized bore
• V-twin engine compatible

Specifications

• Brand: KB Pistons
• Manufacturer Part #: KB408C.030
• UPC: 800745151209
• Engine Displacement: 54 cubic inch (XL)
• Compression Ratio: 9.0:1
• Bore Size: .030 oversized
• Weight: 2.5 lbs
• Country of Origin: Mexico

Fitment

Fits Harley-Davidson Sportster models with 54 cubic inch (XL) engines requiring a .030 oversized piston.

Frequently Asked Questions

What engine size is this piston for?

This is a 54 cubic inch (XL) Sportster piston with a .030 oversized bore diameter.

What compression ratio does this piston provide?

9.0:1 compression ratio, suitable for street riding with pump gasoline.

Is this a direct replacement or does it require boring?

The .030 oversized size requires your cylinders to be bored .030 over by a machine shop before installation.

Will this fit my Sportster engine?

Yes, if your bike has a 54 cubic inch (XL) engine and you have your cylinders bored to .030 oversized specifications.