AdBlue® filler necks & caps

Filler necks for plastic and metal tank applications

Call 01691 596677

Official UK Specialist Distributor | Lifetime Guarantee on all Fuel Caps

AdBlue® filler necks and lockable caps

The Fuel Cap Company is a UK based, family-run business supplying replacement AdBlue® filler necks and lockable caps to businesses in the UK and around the world.

AdBlue® filler necks for both plastic and metal tank applications are available to order. These filler necks can be supplied with or without lockable or non-lockable caps.

Single Key Options for Fleet Operators

For fleet operators, a single key option that opens and locks all tanks in your fleet is available. Please ask before placing your order. Our AdBlue® filler cap range includes; commercial vehicles (MAN, Mercedes, DAF, Iveco, Renault, Scania, and Volvo) and small plant machinery.

For more information, please get in touch on 01691 596677 or see our contact page for more options.

Supplying Specialist Manufacturers Worldwide

We work with manufacturers who need reliable AdBlue® components they can trust — from filler necks to lockable caps and strainers.

To make sourcing easier and more cost-effective, we offer bulk purchasing options on all AdBlue® products. Buying in quantity gives you access to our best wholesale prices, without compromising on quality or lead times.

Every item is manufactured in Europe to OEM standards and shipped to customers around the world. If your business needs a dependable supply partner, we’d be happy to help. You can contact us by email or Whatsapp or call Mark on 07952 384324..

wholesale distributor to classic car clubs

Manufactured in Italy to OEM Standards

Every cap is manufactured to OEM standards by our partner in Italy. Our confidence in the quality of the products we provide means every filler neck cap comes with a Free Lifetime Replacement guarantee for your peace-of-mind.

trusted by customers around the world

Customer Reviews | Delivering fuel caps and filler necks to drivers and manufacturers in 58 countries.

The Fuel Cap Company experience was ...

Paul27 | UK

The Fuel Cap Company experience was excellent. Mark (the owner) was extremely helpful and identified the fuel cap needed for my 1997 campervan right away. He couldn’t have been more helpful and I wish him well in his business. This is a great firm and vital for anyone who needs fuel caps. Very best wishes Paul27

First class service all round

Mark Edward Harrison | UK

First class service all round. Spoke with Mark sent a photo of fuel tank neck. Mark told me which cap I needed. Ordered came two days later. What more can you ask for. Fits a treat. Good old customer focus & advice. Great service.

Mark was quick to reply to my questions

Jacqueline | FR

Mark was quick to reply to my questions. Mark was quick to reply to my questions and the new cap arrived on time and fits perfectly. Great service, thank you.

Fast delivery, super service, professional

Reno | UK

My fuel cap for my Nissan qashqai was delivered a day early, all ordered online and very professional service.

Absolutely amazing service!

Adrian | UK

I used the Snap and Send feature (on a Sunday) to check I was ordering the right fuel cap & Mark replied within minutes! The fuel cap arrived within 2 days of ordering and fits perfectly. I wouldn’t hesitate to recommend the Fuel Cap Company to anybody.

total knowledge on fuel caps

Franics | UK

Ordered, my replacement fuel cap from mark. Very helpful and we had a nice chat. Took my cap and it fitted perfect why buy from a main dealership, it arrived as stated within 48 hours. Thank you for your prompt service.f Armstrong.

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