7623-8 Cyl base nut kit, high-torque

When you are rebuilding a classic Ironhead or a vintage Flathead, the hardware you choose makes all the difference in long-term reliability. This high-torque cylinder base nut kit from Colony is a perfect example of that quality. Finished in a clean, durable chrome, these nuts are designed to handle the specific torque requirements needed to keep your cylinders secured firmly to the cases. This kit is specifically engineered to fit 1952 to 1985 K models and XL Sportsters, along with 45-inch Flathead engines. It serves as a high-quality replacement for OEM part number 16835-55R. Sold as a complete kit, it provides the peace of mind that comes from using premium fasteners on your motor. Whether you are performing a top-end refresh or a full restoration, these Colony nuts ensure your build stays tight and looks great.