Champion L77JC4 Spark Plug Copper Plus
Champion L77JC4 Spark Plug Copper Plus
Champion L77JC4 / L77JC4/T10 COPPER PLUS Spark Plug Replaces M40FFX
When its time to replace the OE spark plugs in your vehicle, mower or weed whacker, Copper Plus® rises to the occasion.
If you are unsure as to whether this is the correct part for your vehicle, please don't hesitate to contact us. Alternatively please use the cross reference table above.
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Model Compatibility
Model Compatibility
- Austin-Healey 3000 1965-1967
- Austin-Healey 3000 MkIII 1967-1972
- Austin-Healey Sprite MkIV 1967-1971
- Austin-Healey Sprite MkV 1971-1974
- Bentley Continental 1952-1965
- Bentley Continental R-Type 1952-1955
- Bentley Continental S1 1955-1959
- Bentley Continental S2 1959-1962
- Bentley Continental S3 1962-1965
- Bentley R-Type 1952-1955
- Bentley S1 1955-1959
- Bentley S2 1959-1962
- Bentley S3 1962-1965
- Daimler DB18 1939-1953
- Daimler Double Six 1931-1932
- Daimler Double Six 1933-1936
- Daimler Double Six 1937-1939
- Daimler Double Six 1946-1950
- Daimler Double Six 1951-1956
- Daimler Double Six 1956-1960
- Daimler Double Six 1961-1969
- Daimler Double Six 1970-1992
- Jaguar Mark II 1959-1967
- Jaguar XK120 1948-1954
- Jaguar XK140 1954-1957
- Jaguar XK150 1957-1961
- Jaguar XKE 1961-1975
- Land Rover 88 1958-1961
- Land Rover 109 1958-1961
- Land Rover 90 1984-1990
- Land Rover 110 1983-1990
- MG MGA 1955-1962
- MG MGB 1962-1980
- MG MGC 1967-1969
- MG Midget MkI 1961-1964
- MG Midget MkII 1964-1966
- MG Midget MkIII 1966-1974
- MG Midget 1500 1974-1980
- Rolls-Royce 20/25 1929-1936
- Rolls-Royce 25/30 1936-1938
- Rolls-Royce Corniche 1971-1986
- Rolls-Royce Silver Cloud 1955-1966
- Rolls-Royce Silver Dawn 1949-1955
- Rolls-Royce Silver Shadow 1965-1980
- Rolls-Royce Silver Wraith 1946-1959
- Triumph Dolomite 1934-1936
- Triumph Herald 1959-1971
- Triumph Spitfire 1962-1980
- Triumph Stag 1970-1977
- Triumph TR2 1953-1955
- Triumph TR3 1955-1957
- Triumph TR4 1961-1965
- Triumph TR6 1969-1976
- Triumph TR7 1975-1981
- Triumph TR8 1978-1981
- Vauxhall Cresta 1954-1972
- Vauxhall Velox 1954-1972
- Vauxhall Victor F-Type 1957-1961
- Vauxhall Victor FB 1961-1964
- Vauxhall Victor FC 1964-1967
- Vauxhall Victor FD 1967-1972
Part Number
Part Number
1. Part Name: Champion L77JC4 Spark Plug Copper Plus
2. Part Number: L77JC4 / L77JC4/T10
3. OEM Part Number(s): M40FFX
4. Product Description: Copper Plus Spark Plug for vehicles, mowers, and weed whackers
5. Features: Copper-core center electrode, Patented Ultraseal coated shell for maximum corrosion resistance, Patented SAC-9 semiconductor resistor
6. Compatibility: Fits various vehicles, mowers, and weed whackers (please use cross reference table or contact us for specific compatibility information)
Shipping Information
Shipping Information
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.
Returns Policy
Returns Policy
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.