Skip to product information
Service Kit for a Single HD4 Carburettor | CSK 21 | SU Specialists
£90.95
Sale price
£90.95
Regular price
Genuine SU service kit for HD4 carburettors. Contains the wearing parts required for a full service of the carburettor. Made in the UK to original SU specification.
Part Number: CSK 21
Fits these vehicles
Taken from the SU application listings. Check the spec number stamped on the tag under one of your carburettor top-cover screws to confirm.
| Vehicle | Engine | Years | Carbs | SU spec no. |
|---|---|---|---|---|
| Riley 4/68 | 1489cc | 1959–60, 1960–61 | Twin HD4 | AUC 901, AUC 961 |
| Riley 4/72 Saloon | 1622cc | 1961–69 | Twin HD4 | AUD 41 |
Matching kits for these applications
Rebuild kit: CRK 247
Gasket pack: AUE 804
Can't see your car, or not sure? Contact us with the spec number from your carburettor tag and we'll confirm the right kit.