Triumph T90/T100 Outer Cylinder Head Bolt 3/8″ x 2-3/4″ 26TPI 1957–1974 PN# 70-4456

Upgrade or restore your classic Triumph motorcycle with this premium Outer Cylinder Head Bolt, designed specifically for the T90 and T100 models from 1957 to 1974. Key Features Precision Fit: Manufactured to exact 3/8″ diameter and 2-3/4″ length specifications, ensuring a perfect fit for Triumph T90 and T100 engines. High Tensile Strength: Crafted from high-grade steel for superior durability and resistance to stretching or breaking under load. Accurate Threading: Features 26 threads per inch (TPI), matching original Triumph engineering standards for secure fastening. Extended Hex Head: Allows for easy installation and removal, even in tight engine spaces. Authentic Restoration: Faithfully reproduces the original part (PN# 70-4456), making it ideal for restorations or repairs that demand authenticity. Made in England: Manufactured to the highest standards, ensuring reliable performance and longevity. Applications Suitable for Triumph T90 and T100 models (1957–1974) Designed for use as an outer cylinder head bolt in classic Triumph twin engines Why Choose This Bolt? OEM Quality: Matches the original Triumph specification for peace of mind and mechanical integrity. Corrosion Resistant: Finished for enhanced protection against rust and corrosion, extending the life of your engine rebuild. Trusted by Enthusiasts: A preferred choice among classic Triumph restorers and mechanics. Restore your Triumph’s performance and reliability with this essential cylinder head bolt—engineered for a precise fit and built to last. 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.