Aston Martin DB4 1958-1963
Aston Martin DB5 1963-1965
Aston Martin DB6 1965-1970
Bentley Continental S3 1963-1966
Bentley Continental S3 Flying Spur 1963-1966
Bentley S3 1962-1965
Bristol 409 1965-1967
Daimler Sovereign 1966-1972
Daimler V8 1966-1969
Ferrari 250 1953-1964
Ferrari 275 1964-1968
Ferrari 330 1963-1968
Ferrari 365 1966-1972
Jaguar E-Type 1961-1971
Jaguar MK II 1960-1969
Jaguar S-Type 1963-1968
Jaguar XJ6 1968-1972
Lamborghini 350GT 1964-1966
Lamborghini 400GT 1966-1968
Lancia Flaminia 1960-1968
Maserati 3500 1957-1964
Maserati Sebring 1962-1969
Maserati Mexico 1966-1972
Mercedes-Benz 220SE 1961-1965
Mercedes-Benz 230SL 1963-1967
Mercedes-Benz 250SE 1965-1967
Mercedes-Benz 280SL 1968-1971
MG MGB 1962-1980
Rolls-Royce Silver Cloud III 1963-1966
Rolls-Royce Silver Shadow 1965-1970
Triumph Spitfire 1962-1980
Triumph TR4 1961-1965
Triumph TR6 1969-1976
Vauxhall Cresta 1962-1965
Vauxhall Victor 1961-1964
Volkswagen Beetle 1961-1979
Volkswagen Karmann Ghia 1961-1974

- OEM part number(s): HT21, 1x Spark Plug Brass Thumb Nut UNC Thread

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.