Restore your classic Triumph motorcycle with this precision-engineered 5/16″-18 x 2-1/2″ Hex Head Rear Crankcase Bolt. Manufactured to meet original equipment standards, this bolt is designed for secure engine assembly, ensuring the integrity and longevity of your crankcase.
Key Features
- Exact Fit: 5/16-inch diameter with 18 threads per inch (UNC), matching Triumph’s original specifications for a seamless installation.
- Durable Construction: Made from high-quality steel, often zinc plated for enhanced corrosion resistance and lasting performance.
- Hex Head Design: Facilitates easy tightening and removal using standard tools, making maintenance straightforward.
- OEM Replacement: Direct replacement for Triumph part number 21-1869, compatible with a wide range of classic Triumph models.
- Authentic Restoration: Ideal for restoration projects, maintaining the correct appearance and function of your vintage motorcycle.
Typical Applications
- Rear crankcase bolt for Triumph 650cc and 750cc engines, including T120 Bonneville, TR6, T140, and TR7 models.
- Used to clamp crankcase halves together, ensuring proper engine assembly and structural integrity.
Specifications
- Part Number 21-1869
- Diameter 5/16 inch
- Thread Type UNC (Unified National Coarse)
- Threads Per Inch 18 TPI
- Length 1-7/8 inch (47.6 mm)
- Head Type Hex head
- Typical Use Rear crankcase bolt (Triumph 650/750)
Choose this genuine Triumph rear crankcase bolt for reliable performance and a factory-correct finish on your classic motorcycle engine assembly.
