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    Green Classic & Vintage Spares

    Gunson G4074 Colortune Single Plug Kit

    Gunson G4074 Colortune Single Plug Kit

    £43.99
    £43.99 £43.99
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    • The Tune-up plug for Petrol/LPG 2 & 4 stroke engines with single, twin or multiple carburettors or fuel injection systems. The original and best tool for seeing what's happening inside the combustion chamber of the petrol engine. It allows you to see the combustion and to adjust the mixture by colour. Fits most petrol engines in standard form with additional adaptors available for vehicles with alternative sized spark plugs 18mm- G4055E 14mm - Long Reach G4055D 14mm - Tapered Seat G4055C 12mm - G4055B 10mm - G4055A The complete Colortune kit is also available with the following adaptors G4171 with 12mm Colortune Plug G4170 with 10mm Colortune Plug
    • Kit includes: 14mm Short reach plug | Hexagonal adaptor
    • Colortune will fit most vehicles
    • Kit complete with instructions
    • Extra adaptor sizes available separately
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    Model Compatibility

    Aston Martin DB4 1958-1963
    Aston Martin DB5 1963-1965
    Aston Martin DB6 1965-1971
    Aston Martin DBS 1967-1972
    Aston Martin V8 1969-1989
    Austin-Healey 100/4 1953-1956
    Austin-Healey 100/6 1956-1959
    Austin-Healey 3000 1959-1967
    Bentley S2 1959-1962
    Bentley S3 1962-1965
    Bentley T1 1965-1977
    Bentley T2 1977-1980
    Bristol 407 1961-1963
    Bristol 408 1963-1966
    Bristol 409 1966-1969
    Bristol 410 1969-1976
    Daimler Sovereign 1966-1969
    Daimler Double Six 1972-1975
    Ferrari 250 GT 1958-1964
    Ferrari 275 GTB 1964-1968
    Ferrari 330 GT 1963-1968
    Ferrari 365 GT 1968-1971
    Ferrari Daytona 1968-1973
    Jaguar E-Type 3.8 1961-1964
    Jaguar E-Type 4.2 1964-1968
    Jaguar E-Type Series 1.5 1968-1969
    Jaguar E-Type Series 2 1969-1971
    Jaguar E-Type Series 3 1971-1975
    Jaguar Mark II 1959-1967
    Jaguar XJ6 1968-1973
    Jaguar XJ12 1972-1975
    Jaguar XJ-S 1975-1991
    Jensen Interceptor 1966-1976
    Lagonda Rapide 1961-1964
    Lagonda V8 1969-1990
    Lamborghini Miura 1966-1973
    Lamborghini Espada 1968-1978
    Lamborghini Jarama 1970-1976
    Lamborghini Countach 1974-1990
    Lotus Elan 1962-1973
    Lotus Europa 1966-1975
    Lotus Elan +2 1967-1974
    Maserati 3500 GT 1957-1964
    Maserati Ghibli 1967-1973
    Maserati Indy 1969-1975
    Morgan Plus 4 1950-1969
    Morgan Plus 8 1968-2004
    Rolls-Royce Silver Cloud 1955-1966
    Rolls-Royce Silver Shadow 1965-1976
    Triumph TR3 1955-1957
    Triumph TR4 1961-1965
    Triumph TR5 1967-1968
    Triumph TR6 1969-1976
    TVR Griffith 1963-1967
    TVR Tuscan 1967-1971
    TVR Vixen 1969-1972
    Wolseley 6/110 1961-1968

    Part Number

    - Gunson G4074
    - G4055E
    - G4055D
    - G4055C
    - G4055B
    - G4055A
    - G4171
    - G4170
    - 14mm Short reach plug
    - Hexagonal adaptor
    - Colortune
    - Kit complete with instructions
    - Extra adaptor sizes available separately

    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

    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.

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