Search for parts for your bike
Enter the registration number or choose make, year and model
or choose your bike
  1. Home
  2. Primary & Clutch
  3. Primary Shift Kits
  4. PRIMARY DISPLACEMENT KIT FOR MODELS WITH 5 & 6 SPEEDS INCLUDING DYNA & SOFTAIL

PRIMARY DISPLACEMENT KIT FOR MODELS WITH 5 & 6 SPEEDS INCLUDING DYNA & SOFTAIL

4 products

Category dedicated to primary case shift kits for Harley-Davidson motorcycles. These kits allow the primary transmission to be adapted to accept 5- or 6-speed gearboxes, improving gear ratios and road performance. Includes essential components such as the primary cover, pressure plate, clutch basket, and necessary gears for the conversion.

About this category

Compatible with Dyna and Softail families, as well as Evolution, Twin Cam, and Milwaukee Eight models using the standard primary configuration. Ideal for those seeking smoother riding and greater efficiency on long routes. Replaces the original 4-speed setup with a more modern and efficient one.

en