Buy Locking Diesel Fuel Caps for Trucks, Cars, Vans & Generators - The Fuel Cap Company

Order within 19 hours and 55 minutes for expected delivery Wednesday 24 Jan 2018

Try our Number Plate Lookup

Not sure which year your vehicle was registered? Pop your number plate into the 'Number Plate' field and we will look it up for you. Please note that at this time, we cannot look-up Cherished or Personalised number plates.

Your number plate will not be stored, shared or sold.

iso 9001 quality fuel caps

ISO Quality Products

We only sell ISO 9001 quality fuel caps manufactured in Europe. Not everyone can say that. The humble diesel cap is a vital safety feature, which is why we only supply diesel caps manufacturered by an OEM supplier.

free fast royal mail delivery

Price Includes Delivery

All our UK and International prices include delivery! Orders are posted Royal Mail Signed UK and International Signed or Tracked, within 24 hours of receiving your payment. Custom Build orders may take longer.

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Fast Secure Checkout

Pay through PayPal (NO ACCOUNT REQUIRED), Nochex UK (regulated by the FCA) or Telephone. All major Credit/Debit cards accepted. Online Payments protected with MasterCard 3D Secure or Verified by Visa.

14 day no quibble return policy

No Quibble Returns

Your order is protected by the Consumer Contracts Regulations 2014 (Distance Selling Regulations). We offer a 14 day No Quibble Returns policy under the latest regulations. Read our Returns Policy before Purchase.

Adblue® Locking Filler Caps

Adblue® Locking Filler Caps

Here at The Fuel Cap Company, we don't just sell fuel caps for cars, vans and motor homes. Adblue®, a colourless non-toxic liquid made of urea and deonised water, that has been added to diesel fuel in commercial vehicles for a number of years now, enabling them to meet Euro 6 emissions targets.

We now stock an extensive range of locking Adblue® filler caps for commercials, such as; Mercedes, DAF, Volvo, Scania and Iveco. All our caps are ISO 9001-2008 certified, and designed specifically for use on diesel commercials that use AdBlue® diesel emission fluid (DEF) in their fuel tanks. Many of our products are OEM stock supplied direct from the manufacturer.

For advice and to view our extensive Adblue® catalogue, please visit our dedicated AdBlue cap section...

Celebrating 10 years of Global Sales

The Fuel Cap Company have been supplying quality fuel caps to the public and trade since 2007. Although the UK remains our largest market, we ship fuel caps as far away as Germany, India and New Zealand. Yes, New Zealand and Australia. In fact over the years, we have shipped to over 10 countries.

Buying from us, you can be assured that you are purchasing a quality product (ISO 9001), at a competitive price from a family run business that thousands of buyers all around the world have come to trust.

"Thank you so much for sending out the fuel cap so quickly. It arrived on Wednesday (in NZ) and I got my Warrant on Thursday. I am so extremely greatful and appreciated of your excellent service. Have a wonderful week. Extremely satisfied customer." (FORD Focus MK1 (1998 to 10/2001) Locking Fuel Cap)

Our Most Popular Diesel Fuel Caps

We stock a comprehensive range of fuel caps for diesel cars, trucks, tractors and generators. For your convenience, we have listed a selection of our more popular Diesel Caps below. All our prices Include Delivery and are shipped within 24 hours when shown as in stock.

Diesel and AdBlue Caps for Farm and Commercial Vehicles

The Fuel Cap Company stock a comprehensive range of Diesel filler and AdBlue caps for commercial and farm vehicles. A small sample is listed below.

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