This Prestige Parts Fuel Vacuum Valve Diaphragm (Part Number UE34029-X) fits Rolls-Royce and Bentley models.
This is the diaphragm for the Vacuum Valve located next to the B-Bank (left hand) carburetor. The internal diaphragm has been discontinued by the factory for many years, but reintroduced via the Prestige Parts range from October 2023.It has commonly degraded due to age, preventing the fast idle setting working correctly. The Vacuum Valve is fitted to cars equipped with refridgeration from chassis 01001-05603 and all cars from 06001-12441. It is operated by a solenoid, which in turn operates the fast idle via the B-Bank throttle lever. The Prestige Parts diaphragm has been manufactured from certified Viton B grade material, resistant to ethanol at all levels.
Please contact our parts team if you have any questions regarding this part and suitable fit for your vehicle.
Our website displays live availability and therefore is accurate at the point of ordering. The following represent the various availability options displayed on parts:
Add to cart: Available - This item is in our inventory and will be picked, packed and dispatched within 15 minutes of your order being placed, subject to working hours. Notify me when back in stock: Click the link to send us an enquiry and we will do a worldwide search for you and let you know what alternatives are available for you.
How long will it take for my order to arrive?
Your order will be picked packed and dispatched within 15 minutes of placing the order subject to the time of day, and availability of the items (see above for availability). Our dispatch team is UK based and the final courier collection is at 4.30pm GMT Monday through Friday. Placing an order before 4pm would typically mean your order can be dispatched on the same day if the items are in stock. If you have any concerns about your order leaving on the same day please contact our sales team directly on +44 (0)20 8546 2027.
Delivery timeframes are indicated on our Delivery Info page along with approximate pricing.
Are there different product options available for parts?
IntroCar (UK) is the registered home of the Prestige Parts® brand and also offers Original Equipment (OE) or Crewe Genuine, Recycled (Used) and Reconditioned Exchange parts option for customers.
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Yes, we do. Assuming that the product is like for like in quality and material then we will be happy to match the price. You will see a Price Promise button under the images on product pages. Simply fill in the information requested when selecting that button on the product you would like to see matched and we will respond within 1-2 hours Monday to Friday within working hours (9am to 5.30pm)
