Cylinders & Pistons

158 products

Shop the range of aftermarket motorcycle engine products at Pro Class Custom Parts.

$644.99

Features & Benefits:- * Bore = 3.528″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

KB PISTONS

$644.99

Features & Benefits:- * Bore = 3.508″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material * Perfect for air cooled engines * Low thermal expansion rate = tighter pi...

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KB PISTONS

$628.99

Features & Benefits:- * Bore = 3.437″ * Stroke = 3.969″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter ...

KB PISTONS

$628.99

Features & Benefits:- * Bore = 3.497″ * Stroke = 3.969″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

KB PISTONS

$628.99

Features & Benefits:- * Bore=3.467″ * Stroke = 3.969″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter pis...

KB PISTONS

$628.99

Features & Benefits:- * Bore = 3.507″ * Stroke = 3.969″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

KB PISTONS

$628.99

Features & Benefits:- * Bore = 3.457″ * Stroke = 3.969″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

Sold Out

KB PISTONS

$644.99

Features & Benefits:- * Bore = 3.528″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter ...

Sold Out

KB PISTONS

$644.99

Features & Benefits:- * Bore = 3.498″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

KB PISTONS

$612.99

Features & Benefits:- * Bore = 3.518″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter ...

KB PISTONS

$612.99

Features & Benefits:- * Bore = 3.498″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

KB PISTONS

$612.99

Features & Benefits:- * Bore = 3.508″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

$706.99

* Top quality cast iron alloy Replacement Cylinders painted black and finished to 3-1/8″ 1340cc (80ci) standard size * Painted black to prevent rust. Recommended Additional Purchase * Part # KB297...

$710.99

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KB PISTONS

$596.99

Features & Benefits:- * Bore = 3.518″ * Stroke = 3.812″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...