SU HD4 Carburettor Major Repair Kit | MRK2247 | Fits MG | SU Specialists
Needle Specification
Please add your needle code into the notes field below. Unsure which needle you need? Contact us and we'll advise.
Not sure which needle you need? View our needle guide →
A full repair kit for a pair of SU HD4 Carburettors. Including Jets, Spindles & Discs, Needle Valves, Gaskets, Seals & Needles of your choice. Made in the UK to original SU specification. Please add your needle code into the notes field when ordering.
Part Number: MRK2247
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. |
|---|---|---|---|---|
| MG Magnette MK III | 1489cc | 1959, 1960–61 | Twin HD4 | AUC 901, AUC 961 |
| MG Magnette MK IV | 1622cc | 1961–63 | Twin HD4 | AUD 41 |
One kit covers the full set of two carburettors.
Matching kits for these applications
Service kit: RPK221
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.