H4 Thermo Repair Kit with Metering Needle | RPK247 | 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 repair kit for a pair of SU H4 Carburettors — Thermo. Including Jets, 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: RPK247
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.
Tap a make to see the models.
Jaguar (10)
| Vehicle | Engine | Years | Carbs | SU spec no. |
|---|---|---|---|---|
| Jaguar 2.5 Litre | 2663cc | 1946–47, 1948 | Twin H3 | AUC 460, AUC 522 |
| Jaguar 3.5 Litre | 3485cc | 1946–47 | Twin H4 | AUC 449 |
| Jaguar 3.5 Litre L.H.D | 3485cc | 1946–47 | Twin H4 | AUC 449 |
| Jaguar MK V 2.5 Litre | 2663cc | 1948–49 | Twin H3 | AUC 528 |
| Jaguar MK V 3.5 Litre | 3485cc | 1948, 1948–50 | Twin H4 | AUC 503, AUC 529 |
| S.S 2.5 Litre | 2663cc | 1937–39, 1940 | Twin H3 | AUC 357, AUC 448 |
| S.S 2.5 Litre Export (brass piston) | 2663cc | 1940 | Twin H3 | AUC 448 |
| S.S 3.5 Litre | 3485cc | 1937–39, 1940 | Twin H4 | AUC 358, AUC 449 |
| S.S 3.5 Litre (no damper) | 3485cc | 1937–39 | Twin H4 | AUC 358 |
| S.S 3.5 Litre Export (brass piston) | 3485cc | 1937–39 | Twin H4 | AUC 358 |
Mini (6)
| Vehicle | Engine | Years | Carbs | SU spec no. |
|---|---|---|---|---|
| Mini conversion: Cooper 'S' GP2 | 1070cc | 1964 | Twin H4 | AUD 108 |
| Mini conversion: Cooper 'S' GP2 | 1275cc | 1964 | Twin H4 | AUD 165 |
| Mini conversion: Cooper 'S' GP2 | 970cc | 1964 | Twin H4 | AUD 164 |
| Mini conversion: Cooper carb & manifold set (no choke) | – | – | Twin H4 | FZX 3057 |
| Mini conversion: Cooper set (with thermo jets) | – | 1961–63 | Twin H4 | AUD 59 |
| Mini conversion: F.J Cooper B.M.C | 998cc | 1960 | Twin H4 | AUC 951 |
Alvis (2)
| Vehicle | Engine | Years | Carbs | SU spec no. |
|---|---|---|---|---|
| Alvis TA & TC 21 | 2993cc | 1950– | Twin H4 | AUC 592 |
| Alvis TC 21 1100 | 2993cc | 1954 | Twin H4 | AUC 592 |
Aston Martin (2)
| Vehicle | Engine | Years | Carbs | SU spec no. |
|---|---|---|---|---|
| Aston Martin DB1 2 Litre | 1970cc | 1949–50 | Twin H4 | AUC 485 |
| Aston Martin DB2 2.6 Litre | 2580cc | 1950–53 | Twin H4 | AUC 556 |
Austin (2)
| Vehicle | Engine | Years | Carbs | SU spec no. |
|---|---|---|---|---|
| Austin Princess 4 Litre (single exhaust) | 3993cc | 1948 | Triple H4 | AUC 510 |
| Austin Princess 4 Litre (twin exhaust) | 3993cc | 1948, 1949, 1950 | Triple H4 | AUC 510 |
Lagonda (1)
| Vehicle | Engine | Years | Carbs | SU spec no. |
|---|---|---|---|---|
| Lagonda 2.6 Litre MKI | 2580cc | 1950–52 | Twin H4 | AUC 556 |
Matching kits for these applications
Rebuild kits: MRK2206, MRK2239
Gasket pack: AUE 954
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.