Cylinders & Pistons

162 products

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

$1,261.99

MFR PART No: 92-1062 ROLLIES PART No: SS92-1062

Sold Out

132ci Big Bore Kit with Highlighted Fins & Mid Level Compression – Black Granite. Fits CVO Milwaukee-Eight 2017up with 117ci Engine

$3,650.99

Features & Benefits:- * Upgrades Milwaukee-Eight 117ci CVO models to 132ci or all the way to 136ci with S&S stroker flywheel # SS320-0605 * 4.320″ Bore & 4.500″ Stroke * Forged Piston...

Sold Out

132ci Big Bore Kit with Non-Highlighted Fins & High Compression – Black. Fits Milwaukee-Eight 2017up 114ci or 117ci Engine

$3,650.99

Features & Benefits:- * Upgrades Milwaukee-Eight 114ci or non-CVO 117ci to 132ci or all the way to 136ci with S&S stroker flywheel # SS320-0605 * 4.320″ Bore & 4.500″ Stroke * Forged ...

Sold Out

132ci Big Bore Kit with Non-Highlighted Fins & Mid Level Compression – Black. Fits Milwaukee-Eight 2017up 114ci or 117ci Engine

$3,650.99

Features & Benefits:- * Upgrades Milwaukee-Eight 114ci or non-CVO 117ci to 132ci or all the way to 136ci with S&S stroker flywheel # SS320-0605 * 4.320″ Bore & 4.500″ Stroke * Forged ...

Sold Out

132ci Big Bore Kit with Highlighted Fins & High Compression – Black. Fits Milwaukee-Eight 2017up 114ci or 117ci Engine

$3,650.99

Features & Benefits:- * Upgrades Milwaukee-Eight 114ci or non-CVO 117ci to 132ci or all the way to 136ci with S&S stroker flywheel # SS320-0605 * 4.320″ Bore & 4.500″ Stroke * Forged ...

Sold Out

132ci Big Bore Kit with Highlighted Fins & Mid Level Compression – Black. Fits Milwaukee-Eight 2017up 114ci or 117ci Engine

$3,650.99

Features & Benefits:- * Upgrades Milwaukee-Eight 114ci or non-CVO 117ci to 132ci or all the way to 136ci with S&S stroker flywheel # SS320-0605 * 4.320″ Bore & 4.500″ Stroke * Forged ...

Sold Out

KB PISTONS

$685.99

Features & Benefits:- * Bore = 3.498″ * Stroke = 4.250″ * 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

$685.99

Features & Benefits:- * Bore = 3.518″ * Stroke = 4.250″ * 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...

Sold Out

KB PISTONS

$685.99

Features & Benefits:- * Bore = 3.508″ * Stroke = 4.250″ * 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

$685.99

Features & Benefits:- * Bore = 3.508″ * Stroke = 4.250″ * 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...

Sold Out

CYCLE PRO LLC

$200.99

* High quality, direct replacement piston ring kit * One Set Required Per Bike * Made in the USA * Cyl Dia = 3.750in. * Replaces OEM # 21949-07 MFR PART No: 28050M ROLLIES PART No: CPL-28050M

Sold Out

CYCLE PRO LLC

$200.99

* High quality, direct replacement piston ring kit * One Set Required Per Bike * Made in the USA * Cyl Dia = 3.750 +.005in. * Replaces OEM # 21950-07 MFR PART No: 28051M ROLLIES PART No: CPL-280...

Sold Out

CYCLE PRO LLC

$200.99

* High quality, direct replacement piston ring kit * One Set Required Per Bike * Made in the USA * Cyl Dia = 3.750 +.010in. * Replaces OEM # 21955-07 MFR PART No: 28052M ROLLIES PART No: CPL-280...

Sold Out

CP CARRILLO PISTONS

$700.99

Features & Benefits:- * ID # 12873 * Bore = 4.310″ * Stroke = 4.500″ * Fully CNC machined * Balanced to +/- 1 gram * Double forced pin oilers * Forged from high strength 2618 alloy * Designed...

Sold Out

KB PISTONS

$923.99

Features & Benefits:- * Super Duty KB Forged Coated Anodized Piston Kit. * Big bore 120″ piston kit for Milwaukee 8. * Factory 114″ and 117″ cylinders are used to bore to 4.125″. * No head m...