Cylinders & Pistons

159 products

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

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$211.99

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

$211.99

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

$211.99

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CYCLE PRO LLC

$211.99

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

$1,131.99

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...

CP CARRILLO PISTONS

$1,131.99

Features & Benefits:- * ID # 6436 * Bore = 3.875″ * Stroke = 4.000″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed f...

KB PISTONS

$898.99

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

$898.99

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...

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KB PISTONS

$897.99

Features & Benefits:- * Bore = 4.000″ * Stroke = 4.375″ * Forged 4032 Alloy is an 11% silicon alloy that is formed in a forging press then fully machined * Best resistance to cracking in hi-co...

KB PISTONS

$897.99

Features & Benefits:- * Bore = 4.010″ * Stroke = 4.375″ * Forged 4032 Alloy is an 11% silicon alloy that is formed in a forging press then fully machined * Best resistance to cracking in hi-co...

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KB PISTONS

$897.99

Features & Benefits:- * Bore = 3.875″ * Stroke = 4.375″ * 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...

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KB PISTONS

$826.99

Features & Benefits:- * Bore = 3.875″ * Stroke = 4.000″ * Hypereutectic Alloy is a cast 16% silicon content material. * Perfect for air cooled engines. * Low thermal expansion rate = tighter p...

DAYTONA JAPAN

$557.99

Features & Benefits:- * 3.875″ Bore * Black with CNC Machined Fins * Sold each, fits front & rear * Includes Dowel Pins (Does NOT include Pistons) * Replaces OEM # 16547-99A Suggested Add...

$441.99

Features & Benefits:- * Replacement Piston Rings for S&S Milwaukee-Eight 107ci to 129ci & 114ci to 132ci Big Bore Kits (4.320″ Bore) Tech Tips:- * Always follow Piston Ring Fitment Ins...

$453.99

Features & Benefits:- * Replacement Piston Rings for CVO 110ci engines that are equipped with S&S High Compression Pistons # SS940-0114. * Sold as a Pair. Tech Tips:- * Ring Fitment Instru...