FREE SHIPPING NATIONWIDE

Crankcase & Bottom End

57 products

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

Categories
Apparel
Brakes
Cables & Hydraulic Lines
Chassis & Sheet Metal
Chrome Mounting Hardware
Clutch & Primary Drive
Electrical
Engine
Exhaust - Spare Parts Only
Exhaust - Systems & Mufflers
Foot Controls
Fuel & Air Systems
Gasket Kits & Gaskets & Seals
Handlebars & Controls
Instruments & Gauges
Lighting
Oil Filters
Seats & Sissy Bars
Suspension
Tires & Wheels
Tools & Supplies
Transmission & Final Drive
Windshields & Luggage
Price
  • -
Show all Price
Category Show all Category
Brand Show all Brand
Sold Out
Product image
$3,881.99
$3,881.99
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...
Product image
$3,887.99
$3,887.99
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:- *...
Product image
$3,822.99
$3,822.99
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...
Product image
$3,819.99
$3,819.99
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...
Product image
$1,655.99
$1,655.99
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...
Product image
$810.99
$810.99
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...
Product image
$344.99
$344.99
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...
Product image
$613.99
$613.99
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...
Product image
$607.99
$607.99
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...
Product image
$604.99
$604.99
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...
Sold Out
Product image
$606.99
$606.99
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...
Sold Out
Product image
$598.99
$598.99
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...
Product image
$454.99
$454.99
Kit Includes: * 1 – 24006-80/83, Pinion shaft * 1 – 2196, Metered oil jet screw * 1 – 24016-80, Flywheel side nut * 1 – 2187, (HD # 11218), Flywheel side key * 1 – 2480, (HD # 23985-54), Pinion ge...
Sold Out
Product image
$456.99
$456.99
* Made from 52100 aerospace-quality Timken bearing stock * Sold as a set * Made in the U.S.A Kit includes: * 1 – 24006-73, Pinion shaft * 1 – 24023-36, Flywheel side nut * 1 – 24023-54, Pinion si...
Product image
$428.99
$428.99
Features & Benefits:- * Machined from solid bronze bar stock. * Hold concentricity to less than .0002″. * Includes Sprocket Shaft # JM-23909-80. * Includes Sprocket Side Nut # JM-24003-55. * F...