Aston Martin DB4 1958-1963
Austin-Healey 3000 1959-1967
Bentley S1 1955-1959
Bentley S2 1959-1962
Bentley S3 1962-1965
Bentley T1 1965-1977
Bentley T2 1977-1980
Bristol 404 1953-1958
Bristol 405 1955-1958
Bristol 406 1958-1961
Bristol 407 1961-1963
Bristol 408 1963-1966
Bristol 409 1966-1969
Bristol 410 1969-1971
Bristol 411 1971-1976
Bristol 412 1975-1980
Daimler Conquest 1953-1958
Daimler Conquest Century 1954-1958
Daimler Majestic 1958-1962
Daimler Majestic Major 1961-1968
Daimler Majestic V8 1968-1978
Daimler Majestic 4.5 V8 1979-1986
Daimler Majestic 5.3 V12 1979-1986
Jaguar XK120 1948-1954
Jaguar XK140 1954-1957
Jaguar XK150 1957-1961
Jaguar E-Type 1961-1974
Jaguar Mark II 1959-1967
Jaguar 420 1966-1968
Jaguar S-Type 1963-1968
Jaguar 240 1967-1969
Jaguar 340 1967-1969
Jaguar Mark X 1961-1966
Jaguar 420G 1966-1970
Jaguar XJ6 Series I 1968-1973
Jaguar XJ6 Series II 1973-1979
Jaguar XJ12 Series I 1972-1973
Jaguar XJ12 Series II 1973-1979
Jaguar XJ-S 1975-1980
Land Rover Series I 1948-1958
Land Rover Series II 1958-1961
Land Rover Series IIA 1961-1971
Land Rover Series III 1971-1985
Lotus Elite 1957-1962
Lotus Elan 1962-1973
Lotus Europa 1966-1975
Lotus Seven 1957-1972
Mercedes-Benz 300SL 1954-1963
Mercedes-Benz 190SL 1955-1963
Mercedes-Benz 220SE 1959-1965
Mercedes-Benz 230SL 1963-1967
Mercedes-Benz 250SL 1966-1968
Mercedes-Benz 280SL 1967-1971
MG MGA 1955-1962
MG MGB 1962-1980
MG MGC 1967-1969
MG Midget 1961-1979
MG 1100 1962-1974
MG Magnette 1953-1968
Mini Cooper 1959-1980
Morris Minor 1948-1971
Morris Oxford 1948-1971
Rover P4 1949-1964
Rover P5 1958-1973
Rover P6 1963-1977
Rover 2000 1963-1977
Rover 3500 1968-1977
Rolls-Royce Silver Cloud 1955-1966
Rolls-Royce Silver Shadow 1965-1980
Triumph TR2 1953-1955
Triumph TR3 1955-1957
Triumph TR3A 1957-1962
Triumph TR4 1961-1965
Triumph TR4A 1965-1967
Triumph TR5 1967-1968
Triumph TR250 1968-1969
Triumph TR6 1969-1976
Triumph TR7 1975-1980
Triumph Spitfire 1962-1980
Triumph GT6 1966-1973
Vauxhall Cresta 1954-1962
Vauxhall Victor 1957-1961
Vauxhall VX4/90 1961-1967
Vauxhall FD 1967-197

- Product name: Champion RL86C CCH830 Spark Plug Copper Plus
- OEM part number: 12366-6771-6
- Equivalent part numbers: Champion RL86C / CCH830, 12366-6771-6
- Technical features:
- Copper-core center electrode
- Patented Ultraseal™ coated shell for maximum corrosion resistance
- Patented SAC-9 semiconductor resistor
- Recommended use: Replacement for OE spark plugs in vehicles, mowers, and weed whackers
- Cross reference table: Please see above for cross reference information
- Compatibility: Please contact us for assistance if unsure about compatibility with your vehicle

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.