Upgrade or restore your classic Triumph motorcycle with this high-quality engine/crankcase stud, manufactured to original specifications for a precise fit and reliable performance.
Key Features
- Diameter: 5/16 inch
- Thread Pitch: 26 Threads Per Inch (TPI), British Standard Cycle (BSC/CEI)
- Length: 4 3/4 inches (standard reference; some catalogs may list as 4 7/8″)
- Part Number: 70-5963 (also cross-referenced as E5963)
- Material: Durable steel, with stainless steel options available from select suppliers
Applications
- Designed for use in classic Triumph 650cc engines, including Bonneville, Tiger, and Trophy models from the mid-1960s through 1970
- Commonly used to secure crankcase halves and as a mounting point for exhaust pipe stays on models with downswept exhaust headers
- Fits various engine and frame mounting positions—always confirm with your model’s parts manual
Benefits
- Manufactured to original Triumph factory specifications for authenticity and reliability
- Ideal for restoration projects and routine maintenance
- Ensures secure engine assembly and proper alignment
Typical Specifications:
- Diameter 5/16″
- Thread Pitch 26 TPI (BSC/CEI)
- Length 4 3/4″ (sometimes 4 7/8″)
- Part Number 70-5963 / E5963
- Application Crankcase/exhaust mounting (varies)
Also listed as E5963 in some catalogs
Compatible with a range of classic Triumph motorcycles—check your parts guide for details
