Collection:
Cylinders & Pistons - M8
33 productsShop the range of aftermarket motorcycle engine products at Pro Class Custom Parts.
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Exhaust System 2:1
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Speedo 3-3/8" Tank & Bar MT
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Suspension
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FXR
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Front Susp. Related
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Front Suspension: 35 & 39mm
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Front Suspension: 41mm
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Front Suspension: 49mm
- Rear Shocks Related - Universal
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Rear Shocks: Dyna
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Rear Shocks: FLH
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Rear Shocks: HD Street
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Rear Shocks: HD Trike
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Rear Shocks: Indian & Victory
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Rear Shocks: Metric
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Rear Shocks: Softail
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Rear Shocks: V-Rod
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Rear Shocks: Vintage
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Rear Shocks: XL'04up
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Universal Suspension
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XL'79-03
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Transmission & Final Drive
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Final Drive
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Transmission - BT 4 spd era
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Transmission - BT 5 spd era
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Transmission - BT 6 spd era
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Transmission - XL 4 spd era
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Transmission - XL 5 spd era
Windshields & Luggage
Std Pistons with 11.7:1 Compression Ratio. Fits Milwaukee-Eight 2017up with Big Bore 114 or 117ci to 128ci 4.250in. Cylinders.
Regular price
$1,227.99
Sale price
$1,227.99
Regular price
Unit price
/per
Features & Benefits:-
* Super Duty KB Forged Coated Anodized Piston Kit.
* 114 or 117ci to Big bore 128″ piston kit for Milwaukee 8 when using 4.250″ Bore Cylinders
* No head modification req...
Std Pistons with 11.0:1 Compression Ratio. Fits Milwaukee-Eight 2017up with Big Bore 107ci to 120ci Engine.
Regular price
$1,131.99
Sale price
$1,131.99
Regular price
Unit price
/per
Features & Benefits:-
* ID # 12776
* Bore = 4.180″
* Stroke = 4.375″
* Fully CNC machined
* Balanced to +/- 1 gram
* Double forced pin oilers
* Forged from high strength 2618 alloy
* Designed...
Dual Spray Piston Cooling Jet Kit. Fits Milwaukee-Eight 2017up
Regular price
$327.99
Sale price
$327.99
Regular price
Unit price
/per
Features & Benefits:-
* Crafted from strong, billet 6061 T6 aluminum
* Patent Pending Dual Spray Technology for uniform piston cooling
* Revised spray locations for more effective cooling
* An...
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