The Jaguar 420, produced between 1966 and 1970, is a luxury executive saloon that blended Jaguar's renowned sporting heritage with enhanced comfort and space, sharing its platform and drivetrain with the Series 1 XJ6. This model was engineered to compete with other premium European sedans of the late 1960s, offering a refined driving experience powered by a 4.2-liter DOHC XK inline-six engine. Its design philosophy focused on providing a sophisticated and powerful vehicle for discerning individuals, marking a significant evolution in Jaguar's lineup towards more contemporary executive transportation.

This comprehensive Factory Service Repair Workshop Manual in English provides essential technical data and procedures for the Jaguar 420. It covers all major vehicle systems, including detailed engine and transmission maintenance and overhaul, brake and suspension servicing, electrical system diagnostics, and bodywork. The manual offers step-by-step repair instructions, troubleshooting guides, torque specifications, and information on special tools, making it an indispensable resource for owners, mechanics, and technicians aiming to maintain, repair, and preserve the integrity and performance of this classic Jaguar.