Restore your classic Triumph 650 to peak performance with this comprehensive Headbolt & Washer Kit, engineered specifically for 1963–1970 unit-construction models, including the iconic T120 Bonneville and TR6. This 9-bolt cylinder head fastener set includes all the correct bolts and washers needed for an authentic, secure, and reliable cylinder head installation.
Key Features
- Complete 9-Bolt Kit: Contains all inner, outer, and center head bolts plus matching washers for a proper cylinder head assembly.
- Model-Specific Fit: Designed for Triumph 650 unit twins from 1963–1970, ensuring compatibility with T120, TR6, and similar models.
- Authentic Hardware: Manufactured to original Triumph specifications for correct fit, strength, and appearance.
- Durable Materials: Made from high-quality steel for lasting reliability and resistance to corrosion. Applications
- Fits: Triumph 650 unit twins (T120 Bonneville, TR6, and related models) from 1963 to 1970
- Purpose: Secures the cylinder head to the engine block, maintaining proper torque and sealing for optimal engine performance
Consists of the following:
- 4 x 70-1596 E1596 3/8″ inner head bolt for torque stay
- 4 x 70-0327 E327 3/8″ outer head bolts with domed head
- 1 x 70-4771 E4771 5/16″ center head bolt
- 8 x 82-2184 Washer 3/8″
- 1 x S25-3 Washer 5/16″
Benefits:
- Restoration Quality: Ensures period-correct appearance and function for show-quality restorations.
- Convenience: All necessary fasteners in one kit, eliminating the hassle of sourcing individual pieces.
- Reliability: New hardware helps prevent leaks and maintains correct cylinder head torque, supporting long-term engine health.
Why Choose This Kit?
- Perfect for engine rebuilds, top-end work, or routine maintenance on your classic Triumph 650.
- Meets or exceeds original factory standards for peace of mind and authenticity.
Note: Always refer to your service manual for correct installation procedures and torque specifications. This kit is a must-have for any Triumph 650 enthusiast seeking hassle-free, dependable engine assembly.
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.






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