- Austin-Healey 100 1956-59
- Austin-Healey 100-6 1959-61
- Austin-Healey 3000 1961-67
- Austin-Healey Sprite MKI 1958-61
- Austin-Healey Sprite MKII 1961-64
- Austin-Healey Sprite MKIII 1964-66
- Austin-Healey Sprite MKIV 1966-70
- Bentley S1 1955-59
- Bentley S2 1959-62
- Bentley S3 1962-65
- Bentley T1 1965-77
- Bentley T2 1977-80
- Daimler Sovereign 1966-69
- Daimler Sovereign Series II 1969-73
- Daimler Sovereign Series III 1973-79
- Jaguar 240 1967-69
- Jaguar 340 1967-69
- Jaguar E-Type Series I 1961-68
- Jaguar E-Type Series II 1968-71
- Jaguar E-Type Series III 1971-75
- Jaguar Mark IX 1959-61
- Jaguar Mark X 1961-67
- Jaguar S-Type 1963-68
- Jaguar XJ6 Series I 1968-73
- Jaguar XJ6 Series II 1973-79
- Jaguar XJ12 Series I 1972-73
- Jaguar XJ12 Series II 1973-79
- Jaguar XK120 1948-54
- Jaguar XK140 1954-57
- Jaguar XK150 1957-61
- Jensen Interceptor 1966-76
- Lotus Elan 1962-75
- Lotus Elan Plus 2 1967-74
- Lotus Elite 1958-63
- Lotus Europa 1966-75
- MG MGA 1955-62
- MG MGB 1962-80
- MG Midget MKI 1961-64
- MG Midget MKII 1964-66
- MG Midget MKIII 1966-74
- Morgan Plus 4 1954-68
- Morgan Plus 8 1968-80
- Rolls-Royce Silver Cloud 1955-59
- Rolls-Royce Silver Shadow 1965-76
- Rolls-Royce Silver Wraith 1955-59
- Sunbeam Alpine 1953-55
- Sunbeam Alpine Series II 1955-58
- Sunbeam Alpine Series III 1958-63
- Triumph GT6 1966-73
- Triumph Herald 1959-71
- Triumph Spitfire MKI 1962-64
- Triumph Spitfire MKII 1964-67
- Triumph Spitfire MKIII 1967-70
- Triumph Spitfire MKIV 1970-74
- Triumph Stag 1970-77
- Triumph TR2 1953-55
- Triumph TR3 1955-57
- Triumph TR3A 1957-62
- Triumph TR3B 1962-65
- Triumph TR4 1961-65
- Triumph TR4A 1965-68
- Triumph TR5 1967-68
- Triumph TR6 1968-76
- Triumph TR250 1968-69
- Triumph Vitesse 1962-71
- TVR Grantura 1954-67
- TVR Griffith 1963-67
- TVR Tuscan 1967-71
- TVR Vixen 1967-72
- TVR Vixen S1 1971-73
- TVR Vixen S2 1973-75
- TVR Vixen S3 1975-77
- TVR Vixen S4 1977-81
- TVR Vixen S5 1981-82
- TVR Vixen S6 1982-84

TJ6J Champion Spark Plug:
- OEM part number: 823M
- Equivalent part numbers: 41-101 / 41-805 / 41-806 / 41-932 / 41-993 / 41-993S / 6M / C16YC / C16YCC / C16YCC11 / C16YCC12 / C16YCC13 / C16YCC14 / C16YCC16 / C16YCC18 / C16YCC2 / C16YCC4 / C16YCC5 / C16YCC7 / C16YCC9 / C16YCC92 / C16YCJ / C16YCX / C16YCX11 / C16YCX12 / C16YCX13 / C16YCX14 / C16YCX15 / C16YCX16 / C16YCX18 / C16YCX2 / C16YCX4 / C16YCX5 / C16YCX7 / C16YCX9 / C16YCX92 / C16YCXE / C16YCXF / C16YCXF11 / C16YCXF12 / C16Y

Standard shipping with tracking via Royal Mail or Evri for heavier parts:
- £4.99 per order for standard 2-day delivery
- £5.99 per order for Next Day delivery

Most orders are shipped the same business day if ordered before 2pm. We ship Monday through Friday.

If we unexpectedly run out of stock we may have to order your part which can take up to 1 week. We will be in touch in the rare circumstance that there is a delay to your shipment.

We want you to be completely happy with your purchase but please do not hesitate to contact us immediately if you have a problem with your order. Please ensure that you consider all the points described on our profile page accessible by clicking our name above the product title.

It is especially important that you take due care to ensure that the part you selected is compatible with your car. If in doubt, we'd prefer that you get in touch via our profile page so we can help you.