Crankcase & Bottom End

62 products

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

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$200.99

Features & Benefits:- * Red Size Pinion Bearing. * Also upgrades Big Twin 1958-1986 to heavy duty late style bearing. Tech Tips:- * This bearing must use OEM retaining ring # 11177A. * Never ...

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JIMS

$200.99

Features & Benefits:- * White Size Pinion Bearing. Tech Tips:- * Note: Do not reuse the old retaining ring that secures this bearing. * This bearing requires a new retaining ring # HD11177A. ...

$420.99

* Conrod Bearing Set for all of S&S three-piece flywheels * Fits V111 & V124 1984-99 * Fits S&S 3 Piece Flywheel 1999-06 * Fits S&S 3 Piece Flywheel 2007-17 * Will Not Fit HD Flywh...

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EASTERN MOTORCYCLE PARTS

$392.99

Features & Benefits:- * Left Hand Crank Case Bearing. * Replaces OEM # 9029

EASTERN MOTORCYCLE PARTS

$236.99

Features & Benefits:- * Replaces OEM # 24385-40

$501.99

Installation kit for S&S Super Stock crankcase into 2007-2016 Touring models. Required to connect Super Stock crankcase to S&S oil pan. Includes formed oil line adapter, oil lines, fitting...

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$4,668.99

Features & Benefits:- * Wrinkle Black. * Perfect for stock replacement & high performance applications. * These crankcases offer some unique features. * Besides being machined for a crank...

$5,834.99

These cases are designed to accept cylinders up to 4 1-2″, which is massive, & they have a case with a spigot bore of 4.695″ The demand for performance-based bagger parts is growing, and these...

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$4,713.99

The Crankshaft is the heart of any performance engine and S&S Cycle has been perfecting the art for over six decades. Stronger, more durable, and trued to a spec others can only dream of, our ...

$4,455.99

Features & Benefits:- * The S&S Super Stock alternator style crankcases are perfect for stock replacement & for high performance applications. * Pre-clearanced for strokes up to &...

$4,260.99

Features & Benefits:- * 2003-2006 motors can be upgraded to the stronger “Timken” crankcase bearing. * Heat-treated 4140 material is harder & 114% stronger than stock. * Harder material, e...

$4,253.99

Note: This S&S 4-1/2″ stroke flywheel assembly when used with 3-7/8″ cylinders creats 106 cubic inch’s 1. Purchase S&S 3-7/8″ piston kit # SS92-1210 & bore your current cylinders Feat...

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DAYTONA JAPAN

$755.99

Features & Benefits:- * Meets or exceeds OEM specifications * Come completely fitted and ready to install * Complete set includes a two-hole crankpin, aluminum retainers, bearings, nuts and fo...

DAYTONA JAPAN

$745.99

Features & Benefits:- * Meets or exceeds OEM specifications * Come completely fitted and ready to install * Complete set includes a two-hole crankpin, aluminum retainers, bearings, nuts and fo...

$271.99

Features & Benefits:- * Sold Each. * Replaces OEM # 24004-03B & 24605-07 Proudly Made in the USA by S&S Cycle !