Our Quick Action Bayonet (QAB) range was created in the 1970’s as a modern alternative to other caps on the market at the time.

Further Information

Quick Action Bayonet (QAB) fuel caps are a type of fast-connecting fuel cap system designed for efficient and secure fuel tank access.

Design and Functionality

Quick Action Bayonet (QAB) fuel caps consist of two main components:

  1. A cap with bayonet-style lugs or pins
  2. A receiver on the fuel tank with corresponding slots or grooves


The connection is made by inserting the cap into the receiver and then rotating it a quarter-turn (90 degrees) to lock it in place. The twist-and-lock mechanism provides a quick, secure connection without the need for additional tools.

QAB Fuel Cap Key Information

  • Rapid Connection/Disconnection: The bayonet-style locking mechanism allows for swift coupling and uncoupling, improving refuelling efficiency.
  • Secure Locking: The quarter-turn twist ensures a tight seal and prevents accidental opening.
  • Audible Clicks: Some QAB fuel caps make a clicking noise when securely locked to prevent any issues.
  • Improved Fuel Tank Access: QAB caps normally have a larger opening through which refuelling takes place, as opposed to a screw-on cap; this make chances of fuel spills minimal.

QAB Fuel Cap Key Applications

  • Motorcycles and performance vehicles
  • Racing and high-performance cars
  • Industrial and agricultural equipment
  • Marine vessels

QAB Fuel Cap Advantages

  • Improved refuelling efficiency due to quick connect/disconnect capabilities.
  • Enhanced safety features, including better sealing to prevent fuel leakage.
  • Reduced risk of cross-threading or damaging threads compared to screw-on caps.
  • Usually made from durable materials (mild/stainless steel and zinc coated/powder coated with aluminium) for longevity and reduced weight.
QAB fuel caps represent an evolution in fuel cap technology, offering a balance of speed, security, and convenience for applications requiring frequent refuelling or where quick access to the fuel tank is needed.

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