40037-79 Primary Chain

When you are opening up the primary on an FXR or Touring model, you want a chain you can trust to handle the torque. This Diamond primary chain is the same high-quality component used by Harley-Davidson as original equipment, so you know it meets strict factory standards. It features case-hardened pins, wide side plates, and premium bushings designed specifically for the power demands of a V-Twin. It fits FXR and Touring models and serves as a direct replacement for OEM part number 40037-79. Because these chains are engineered for motorcycle use, they offer the durability needed for long-haul reliability. It is a competitively priced, heavy-duty option that ensures your driveline stays smooth and dependable.