Triumph 650 Unit Twins 5/16″-22 x 1 7/8″ BSF Crankcase Bolt 1967-68 PN# 70-4098
$14.49
$22.89
Restore your classic Triumph motorcycle with this authentic Triumph 5/16″-22 x 1 7/8″ BSF Crankcase Bolt (PN# 70-4098). Manufactured to original specifications, this bolt is essential for anyone seeking reliability and period-correct detail in their engine assembly. Key Features Exact Fit: Designed for Triumph 650 unit twins from approximately 1967 to 1968, including models like the T120 Bonneville, TR6, and Tiger. Quality Construction: Produced in the UK from durable materials to ensure lasting performance and resistance to corrosion. Precision Threads: Features a 5/16″ diameter with 22 threads per inch, using the British Standard Fine (BSF) thread pattern unique to vintage British motorcycles. Critical Application: Specifically intended for securing the crankcase halves, helping maintain engine integrity and proper assembly. Authentic Restoration: Ideal for classic motorcycle restorations, preserving the original look, feel, and mechanical reliability of your Triumph. Specifications Part Number 70-4098 Diameter 5/16 inch Thread 22 TPI, British Standard Fine (BSF) Length 1 7/8 inches (48 mm) Application Crankcase bolt Compatibility Triumph 650 unit twins (circa 1967–1968) Why Choose This Bolt? Ensures a secure and precise fit for your engine assembly. Maintains authenticity and safety for your classic Triumph. Trusted by restorers and mechanics for accurate, reliable restoration projects. Note: Always verify compatibility with your specific model using the official parts manual before installation. This bolt is sold individually and is also available as part of comprehensive engine hardware kits. The product images shown are for illustrative purposes only and may not be an exact representation of the product received. Manufacturers occasionally make minor cosmetic changes to items, such as color, finish, label, or design. These changes do not impact the item’s function or compatibility. Please contact us if you have specific concerns regarding appearance.
