Aston Martin DB4 1958-1963
Aston Martin DB5 1963-1965
Aston Martin DB6 1965-1970
Aston Martin DBS 1967-1972
Aston Martin V8 1969-1989
Austin-Healey 100 1953-1956
Austin-Healey 100-6 1956-1959
Austin-Healey 3000 1959-1967
Bentley S2 1959-1962
Bentley S3 1962-1965
Bentley T-Series 1965-1980
Bentley Corniche 1971-1984
Bentley Mulsanne 1980-1992
Bentley Turbo R 1985-1997
Bentley Brooklands 1992-1998
Bristol 400 1947-1950
Bristol 401 1949-1953
Bristol 402 1952-1955
Bristol 403 1953-1955
Bristol 404 1953-1958
Bristol 405 1955-1958
Bristol 406 1958-1962
Bristol 407 1961-1963
Bristol 408 1963-1965
Bristol 409 1965-1967
Bristol 410 1967-1969
Bristol 411 1969-1976
Bristol 412 1975-1982
Bristol Beaufighter 1980-1994
Bristol Brigand 1980-1994
Bristol Britannia 1982-1994
Bristol Brougham 1982-1994
Bristol Fighter 1982-1994
Bristol Filton 1982-1994
Bristol Kensington 1982-1994
Bristol Regent 1982-1994
Bristol Sceptre 1982-1994
Bristol Varsity 1982-1994
Bristol Windsor 1982-1994
Bristol 412 1983-1986
Bristol Fighter 1983-1992
Bristol Britannia 1983-1994
Bristol Varsity 1983-1994
Bristol 603 1985-1994
Bristol Beaufort 1985-1994
Bristol Belvedere 1985-1994
Bristol Brigand 1985-1994
Bristol Britannia 1985-1994
Bristol Kensington 1985-1994
Bristol Regent 1985-1994
Bristol Sceptre 1985-1994
Bristol Windsor 1985-1994
Bristol Beaufighter 1986-1994
Bristol Belvedere 1986-1994
Bristol Britannia 1986-1994
Bristol Kensington 1986-1994
Bristol Regent 1986-1994
Bristol Sceptre 1986-1994
Bristol Windsor 1986-1994
Bristol Beaufort 1987-1992
Bristol Belvedere 1987-1992
Bristol Britannia 1987-1992
Bristol Kensington 1987-1992
Bristol Regent 1987-1992
Bristol Sceptre 1987-1992
Bristol Windsor 1987-1992
Bristol Bulldog 1988-1994
Bristol Beaufighter 1989-1994
Bristol Belvedere 1989-1994
Bristol Britannia 1989-1994
Bristol Kensington 1989-1994
Bristol Regent 1989-1994
Bristol Sceptre 1989-1994
Bristol Windsor 1989-1994
Bristol Beaufort 1990-1994
Bristol Belvedere 1990-1994
Bristol Britannia 1990-1994
Bristol Kensington 1990-1994
Bristol Regent 1990-1994
Bristol Sceptre 1990-1994
Bristol Windsor 1990-1994
Caterham Seven 1957-1973
Daimler 4 Litre 1937-1940
Daimler 4.5 Litre 1946-1953
Daimler 2.5 Litre 1951-1957
Daimler 2.5 V8 1962-1969
Daimler 250 1962-

NGK

- Part Number: NGK HB6BIX-11P / 5705
- Product Name: Spark Plug HB6BIX11P Iridium IX
- Replaces OEM Part Number: VKB20
- Designed for: Performance Enthusiasts
- Benefits: Extreme Ignitability, Improved Throttle Response, Superior Anti-fouling
- Tip Material: Fine Iridium
- Durability: High
- Spark Stability: Consistent
- Alloy: Iridium
- Melting Point: Extremely High
- Suitable for: High-tech, High-performance Engines
- Plating: Trivalent Metal
- Properties: Superior Anti-corrosion, Anti-seizing
- Acceleration: Outstanding
- Fuel Efficiency: High
- Durability: High
- Design: Ultimate
- Technology: Advanced
- Cross Reference Table: Available
- OEM Part Numbers: VKB20
- Equivalent: NGK HB6BIX-11P / HB6BIX11P / 5705

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.