Acorn nut

Jaguar: XK120 from engine no. W6698 plus all XK140 and XK150 (1954-61) • S.S 1.5 litre (1937-40)

Ford: Consul 1500 (1950-56)

Alfa Romeo: Vehicles with Lucas ignition system - 750 series: Giulietta 1300 (1955-59) • 101 series: Giulietta 1300 (1959-64)

Land Rover: Series II and early Series IIA 4 cylinder petrol with 2.286 cc (1958 to December 1963)

Austin Healey: BN1 and BN2 (1953-56)

MG: TA (1936-39) • C-Type and D-Type Midget (1931-32) • J1 and J2 Midget (1932-34) • L1 and L2 Magna (1933-34) • PA and PB Midget (1934-36)

other manufacturers: Ariel Sq.4 1949/58 • B.S.A 1932/38 • Commer 8 cwt Van 1938/39, 15/25cwt Van 1938/40 • Dennis 1939/47 • Jowett 10 1937/39 • Lanchester 11 1939 • Lea Francis 14 1939/46 • Reliance 1947 • Standard 8 1939, 9, 10 1934/40, 12 1934/38

Triumph: All models from 1931 to 1934

Morris: Minor (1932-34) • 8 (1934-39) • 10 (1933-46) • 12 (1935-39) • 6 cwt Van (1940, 1946-48) • 8/10 cwt Van (1934, 1938-39)

Austin: 7 (1930-39) • 8 (1939-48) • 10 (1932-48) • 12 (1933-48)

Citroën: 1934-49

Rover: 10 (1934-39) • 12 (1934-39)

Hillman: Minx (1931-39) • 14 (1938-39 )

Singer: 1932-46

Riley: 1932-46

Wolseley: 9 (1934-36) • 10 (1934-40) • 12 (1936-39)

Reliant: 1951-56

Alvis: 1931/34, 1936/39

HT lead to distributor cap