Cylinders & Pistons

160 products

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

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$672.99

Features & Benefits:- * Bore = 3.538″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

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KB PISTONS

$671.99

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...

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KB PISTONS

$672.99

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 ...

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KB PISTONS

$672.99

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 ...

KB PISTONS

$672.99

Features & Benefits:- * Bore = 3.538″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

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KB PISTONS

$638.99

Features & Benefits:- * Bore = 3.503″ * Stroke = 4.250″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

$232.99

* Milled from Billet Aluminum 6061-T6 * Revised spray locations for more effective cooling * Dual jets for uniform piston cooling * Shorter than OEM for greater rod clearance * Includes all needed...

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CYCLE PRO LLC

$214.99

Fitment: T/Cam Models with 3.875″ Bore i.e T/Cam 88ci with 95ci Big Bore Kit T/Cam 96ci with 103ci Big Bore Kit OEM T/Cam 103ci Models * High quality, direct replacement piston ring kit * One Set ...

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CYCLE PRO LLC

$214.99

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CYCLE PRO LLC

$214.99

4.016″ Bore x 4.500″ Stroke * High quality, direct replacement piston ring kit * One Set Required Per Bike * Sold as a Pair. * Made in the USA * Replaces OEM # 22000061

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CYCLE PRO LLC

$214.99

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CYCLE PRO LLC

$214.99

3.937″ Bore x 4.375″ Stroke * High quality, direct replacement piston ring kit * One Set Required Per Bike * Sold as a Pair. * Made in the USA * Replaces OEM # 22000060

CP CARRILLO PISTONS

$1,065.99

Features & Benefits:- * Bore = 3.937″ * Stroke = 4.000″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed for maximum p...

KB PISTONS

$867.99

Features & Benefits:- * Bore = 3.885″ * Stroke = 4.000″ * Forged 4032 Alloy is an 11% silicon alloy that is formed in a forging press then fully machined. * Best resistance to cracking in hi-c...

KB PISTONS

$867.99

Features & Benefits:- * Bore = 3.875″ * Stroke = 4.000″ * Forged 4032 Alloy is an 11% silicon alloy that is formed in a forging press then fully machined. * Best resistance to cracking in hi-c...