Parts for Caterham 21
This section contains parts for the Caterham 21, a compact roadster produced from 1994 in the 1.6 i, 1.6 i Supersport and 2.0 (C2) versions. There are 4 items in total: three spark plugs and one valve seal. Suitable for Caterham 21 owners who select consumables by specific generation and engine. The catalog features Bosch, Denso, NGK and Elring brands.
When selecting, consider the generation and engine: the 1.6 i and 1.6 i Supersport require one type of spark plug, while the 2.0 (C2) version requires another, so verify the part number against your modification. The Elring 586693 valve seal is 7 mm in size — check that it matches your engine. Refer to equivalents from Bosch, Denso and NGK with suitable specifications.
Spark plugs for Caterham 21
Bosch 0242235666
Denso K20PRU
NGK 6962Oil seals and O-rings for Caterham 21
Fitment comes from manufacturer catalogs; check the part by VIN before buying, as it depends on the engine and model year.
Frequently asked questions
Which spark plugs are suitable for the Caterham 21 1.6 i?
The catalog includes Bosch FR7DС+ (0242235666), Denso K20PR-U and NGK BKR6E (6962) spark plugs. Verify the part number against your 1.6 i or 1.6 i Supersport modification.
Will the Elring 586693 valve seal fit the 2.0 (C2) engine?
The Elring 586693 valve seal is 7 mm in size. Check fitment by the catalog number for your 2.0 (C2) engine.
What is the difference between the Bosch, Denso and NGK spark plugs in this section?
These are equivalents from different manufacturers with different part numbers. Choose based on the recommended heat rating and electrode type for your engine.