Crankcase & Bottom End

57 products

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

$343.99

Features & Benefits:- * Fits Softail, Dyna & Touring 2003-2006 Left Hand Case. * Fits Softail 2000-2006, Dyna & Touring 2003-2006 Right Hand Case. * Sold Each. * Replaces OEM # 24604-0...

EASTERN MOTORCYCLE PARTS

$279.99

Features & Benefits:- * Kit includes 2 x Thrust Washer (OEM#8972), 1 x Bearing (OEM#34605-07), 1 x Retaining Ring (OEM#35114-02) & 1 x Bearing Race (Not sold Separately) * Replaces OEM # 2...

$4,359.99

Features & Benefits:- * Includes new Sprocket Shaft Race for OEM type Main Bearing. * Replaces the Stock Crankshaft in 96ci,103ci & 110ci Engines. * OEM style Tapered Wristpin Ends allow u...

$4,127.99

Features & Benefits:- * Includes new Sprocket Shaft Race for OEM type Main Bearing. * Replaces the Stock Crankshaft in 96ci,103ci & 110ci Engines. * OEM style Tapered Wristpin Ends allow u...

$4,361.99

Features & Benefits:- * Heat-treated 4140 material is harder & 114% stronger than stock. * Harder material, eliminates thrust washer. * Larger 1.671″ diameter crankpin. * Designed with inc...

$4,359.99

Features & Benefits:- * Without Sprocket Shaft Race for use with the Timken Bearing Upgrade. * Replaces the Stock Crankshaft in 96ci,103ci & 110ci Engines. * OEM style Tapered Wristpin End...

$4,127.99

Features & Benefits:- * Without Sprocket Shaft Race for use with the Timken Bearing Upgrade. * Replaces the Stock Crankshaft in 96ci,103ci & 110ci Engines. * OEM style Tapered Wristpin End...

Sold Out

$4,356.99

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 Fea...

$4,121.99

Features & Benefits:- * Heat-treated 4140 material is harder and 114% stronger than stock * Harder material, eliminates thrust washer * Larger 1.671″ diameter crankpin * Designed with increas...

$4,127.99

Features & Benefits:- * Requires the Timken Bearing Sprocket Shaft Crankcase Sleeve & Tool Kit # JM-959. * Requires Timken Bearing Assembly # SS31-4013. * 3 Piece Assemblies. Tech Tips:- *...

$4,127.99

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 Fea...

Sold Out

$4,124.99

Features & Benefits:- * Also Fits Dyna 1999-2005. * Also Fits Touring 1999-2006. * 2003-2006 motors can be upgraded to the stronger Timken Crankcase Bearing. * Heat-treated 4140 material is ha...

$1,809.99

Features & Benefits:- * Includes Oil Pan. * Allows the installation of S&S engine or crankcase into Dyna 2006-2017. * Oil pickup tube routed to the rear of the oil pan for extended high ac...

Sold Out

DAYTONA JAPAN

$1,026.99

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

DAYTONA JAPAN

$768.99

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...