The Triumph TR3B, produced from 1959 to 1962, is a classic British sports car renowned for its robust chassis, torquey 2138cc engine, and engaging open-top driving experience. Building upon the foundation of its predecessors, the TR3B offered a blend of performance and attractive styling that made it a competitive entry against marques like Austin-Healey and MG during its era. Today, it remains a highly sought-after collector's item, appreciated for its historical significance in the lineage of British sports cars and its success in motorsport.

This workshop service repair manual provides comprehensive guidance for the Triumph TR3B, covering all essential aspects of maintenance, repair, and overhaul. It details procedures for the engine, fuel, ignition, cooling, exhaust, transmission, drivetrain, suspension, steering, brakes, and electrical systems. The manual includes step-by-step repair instructions, diagnostic guides for common issues, adjustment procedures, and critical technical specifications such as torque values and fluid capacities, empowering owners and technicians to maintain this iconic vehicle.