- Triumph Dolomite 1976-80

- Austin-Healey Sprite 1965-71
- Austin-Healey 100 1953-59
- Austin-Healey 3000 1965-72
- Ford Capri 1969-74
- Ford Cortina 1962-74
- Ford Escort 1968-75
- Ford Granada 1972-77
- Ford Transit 1965-75
- Hillman Avenger 1970-76
- Hillman Hunter 1966-76
- Jaguar E-Type 1961-75
- Jaguar XJ6 1968-75
- Lotus Elan 1962-74
- MG MGB 1975-81
- MG Midget 1965-79
- Morris Marina 1972-76
- Morris Minor 1956-71
- Morris Oxford 1961-71
- Reliant Scimitar 1964-76
- Rover P6 1963-77
- Sunbeam Alpine 1969-75
- Sunbeam Rapier 1967-76
- Triumph Dolomite 1976-80
- Triumph GT6 1966-73
- Triumph Herald 1959-71
- Triumph Spitfire 1962-80
- Vauxhall Cavalier 1975-81
- Vauxhall Firenza 1971-75
- Vauxhall Victor 1961-71
- Vauxhall Viva 1963-79
- Volkswagen Beetle 1961-79
- Volkswagen Golf 1974-81
- Volkswagen Karmann Ghia 1961-74
- Volkswagen Scirocco 1974-81
- Volkswagen Transporter 1961-79

NGK

- Part Number1: NGK BPR6E
- Part Number2: NGK BPR6ES