AUC8188
This is a factory original .090in jet tube for a SU H-THERMO carburetor.

Please note that this jet is NOT suitable for a regular SU H-series carburetor!

This product is priced, and sold, as each.
Required quantity per carburetter: 1

It is Number 4 in the DRAWING of the SU H-type THERMO carburetor.

This is an original SU product.

SU part number: AUC 8188 / AUC8188

Please note that this jet is a so-called "tuning part" and consequently has to be chosen with care.
Changing the jet, changes the mixture that is being fed into your engine.

If you have not modified your engine but simply want to replace a worn jet (they do wear and do age...), then replace it with the same reference as your old jet.

If you are unsure about which jet to chose, then please contact us and we will gladly help you.
Our Contact page can be found HERE.

* Made in the UK *

General Notice

SU has been making carburetors (or "Carburetters" as they call them themselves) since 1904 and the number of different models runs in the hundreds.
In order to find the correct part for your specific carburetor, it helps us if you have the so-called "tag number" at hand.
This tag number is usually stamped onto a small aluminum tag found under one of the screws of the float chamber cover like in this photo:

Without this tag number, the search for the correct part is, also for us, rather challenging as most SU carburetors are look-a-likes of each-other and going just by vehicle type still leaves many options open.

So, feel free to contact us by email if the set or parts that you are looking for is not yet listed but please have this tag number at hand.
Our Contact Page can be found HERE.