Crankcase & Bottom End

The demand for performance-based Softail parts is growing, and these M8 engines are creating more power daily. All that power requires a quality ba...

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 pe...

The demand for performance-based bagger parts is growing, and these M8 engines are creating more power daily. All that power requires a quality bas...

Features & Benefits:- * The S&S Super Stock alternator style crankcases are perfect for stock replacement & for high performance applic...

Features & Benefits:- * Includes standard size crankpin, pinion oil pump key and nut * Replaces OEM # 23961-80 * Made in the U.S.A. Tech Tips:-...

* Single Cam Models ONLY Use With: * Nuts x 2 x SS34-2104 * Key x 1 SS50-1009 * Made in the U.S.A.

Features & Benefits:- * Sold Each. * Replaces OEM # 23969-83 Tech Tips:- Two Normally Required. Proudly Made in the USA by S&S Cycle !

Features & Benefits:- * Sets balanced to + or - 1 gram * Made from a forging * Laser engraved * 100% Magnafluxed * Fully CNC Machined * Shotpee...

Features & Benefits:- * Meets or exceeds OEM specifications * Come completely fitted and ready to install * Complete set includes a two-hole cr...

Features & Benefits:- * Meets or exceeds OEM specifications * Come completely fitted and ready to install * Complete set includes a two-hole cr...

Features & Benefits:- * Sets balanced to + or - 1 gram * Made from a forging * Laser engraved * 100% Magnafluxed * Fully CNC Machined * Shotpee...

Features & Benefits:- * Meets or exceeds OEM specifications * Come completely fitted and ready to install * Complete set includes a two-hole cr...

Features & Benefits:- * Meets or exceeds OEM specifications * Come completely fitted and ready to install * Complete set includes a two-hole cr...

Features & Benefits:- * 7.440" Rod Length. * Sold as a Pair. Tech Tips:- * Torque crankpin nuts to H-D specs 180-210 ft/lbs for both OEM & ...

Features & Benefits:- * Meets or exceeds OEM specifications * Come completely fitted and ready to install * Complete set includes a two-hole cr...

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 Bear...

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

Features & Benefits:- * Genuine Timken Bearing. * Left Hand Crank Case Bearing. * Replaces OEM # 9028 Proudly Made in the USA!

These American made Torrington rod bearing sets consisting of three packaged bearings with 16 rollers in steel cages. They will retro fit back to 1...

Use these hardened and ground spacers when converting 2003 and later Twin Cam engine cases to a Timken output bearing. These spacers will provide c...

Features & Benefits:- * Width = 1.095" * OD = 1.750" * ID = 1.255" * Spacer between the Flywheel & Alternator Rotor. Proudly Made in the U...

Features & Benefits:- * Width = 1.565" * OD = 1.748 * ID = 1.254 * Replaces OEM # 24009-06

Use these hardened and ground spacers when converting 2003 and later Twin Cam engine cases to a Timken output bearing. These spacers will provide c...

Features & Benefits:- * Width = 1.431" * OD = 1.753 * ID = 1.246 * Replaces OEM # 24039-03

Features & Benefits:- * Width = 0.983" * OD = 1.751 * ID = 1.245 * Replaces OEM # 24039-01

Features & Benefits:- * Width = 0.890" * OD = 1.749 * ID = 1.247 * Replaces OEM # 24038-99

Features & Benefits:- * Width = * OD = * ID = * Replaces OEM # 24038-03

Features & Benefits:- * Width = 1.096" * OD = 1.749 * ID = 1.239 * Replaces OEM # 24008-99

Features & Benefits:- * Width = 1.540" * OD = 1.749" * ID = 1.249" * Replaces OEM # 24008-03

Features & Benefits:- * Standard Size Right Side Crankcase Race Bearing (OEM # 8881) * Suggested Additional Purchase: Right Hand Pinion Bearing...

Features & Benefits:- * White/Grey Size Pinion Bearing. * Suggested Additional Purchase: Standard Right Hand Crank Case Race # EMP-A-8881 Right...

* Replaces OEM # 74438-99

Features & Benefits:- * Sold as a Pack (5). * Fits Crank Pin on Big Twin late 1981up with Single Cam. * Fits Crank Pin on Sportster late 1981-...

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 #...

Features & Benefits:- * Without Sprocket Shaft Race for use with the Timken Bearing Upgrade. * Replaces the Stock Crankshaft in 96ci,103ci &...

Features & Benefits:- * Includes new Sprocket Shaft Race for OEM type Main Bearing. * Replaces the Stock Crankshaft in 96ci,103ci & 110ci E...

Features & Benefits:- * Also Fits Dyna 1999-2005. * Also Fits Touring 1999-2006. * 2003-2006 motors can be upgraded to the stronger Timken Cran...

Features & Benefits:- * Heat-treated 4140 material is harder and 114% stronger than stock * Harder material, eliminates thrust washer * Larger ...

Features & Benefits:- * Requires the Timken Bearing Sprocket Shaft Crankcase Sleeve & Tool Kit # JM-959. * Requires Timken Bearing Assembly...

Features & Benefits:- * Socket Head Bolts. Proudly Made in the USA by Colony Machine ! Replaces OEM # 24603-00, 48054-00, 48093-00 & 48094-00

Features & Benefits:- * Meets or exceeds OEM specifications * Come completely fitted and ready to install * Complete set includes a two-hole cr...

Features & Benefits:- * Sold as a Pack (10). Tech Tips:- * The updated 1-piece Pinion bearing requires an updated retaining ring, part number o...

Features & Benefits:- * Sold Each. * Replaces OEM # 24623-99B

Features & Benefits:- * Fits Softail, Dyna & Touring 2003-2006 Left Hand Case. * Fits Softail 2000-2006, Dyna & Touring 2003-2006 Right...

Features & Benefits:- * Genuine Timken Bearing. * Left Hand Crank Case Bearing. * Replaces OEM # 24729-74 & 48302-85 Proudly Made in the USA!

* Normally Purchased with Left side bearing # EMP-A-8989 & Spacer Kit # EMP-40-0145 * Replaces OEM # 8991

* Normally Purchased with Right side bearing # EMP-A-8991 & Spacer Kit # EMP-40-0145 * Replaces OEM # 8989

Features & Benefits:- * Ovesize Allen 11/16-16. Proudly Made in the USA by Colony Machine !