Oil & Fuel Dry Break Quick Release Couplings

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Oil & Fuel Dry Break Quick Release Couplings

Our Oil & Fuel Dry Break Quick Release Couplings provide a fast, clean and secure way to disconnect fluid lines in motorsport applications. Designed for fuel and oil systems, the double shut-off design automatically closes both sides of the coupling when disconnected, helping to minimise fluid loss and contamination while making servicing and component changes quicker and cleaner.

Why Choose Our Oil & Fuel Dry Break Couplings?

Double Shut-Off Dry Break Design

Both halves of the coupling feature an internal shut-off system which automatically closes when disconnected, helping to minimise fluid loss and contamination while the fluid line is separated.
Quick-Release Bayonet Connection

A bayonet locking mechanism provides fast, secure and tool-free connection and disconnection, making the coupling ideal for motorsport systems where fluid lines or components may need to be removed or changed regularly.
Lightweight Aluminium Construction

Manufactured from 6061-T6 aluminium for a lightweight, high-strength construction, with a black and gunmetal grey anodised finish to provide additional protection against wear and corrosion.
AN Male Connections

Male AN connections on both coupling halves use JIC 37° flare sealing with compatible female AN fittings.
High-Pressure Design

Designed for demanding motorsport fluid systems, with the exact operating pressure and flow dimensions shown in the technical specifications.
FPM (Viton) Seals

FPM (Viton) O-ring seals provide compatibility with a range of oil and fuel-based fluids, including petrol, diesel, race fuel, engine oil and gear oil. Compatibility should be confirmed when using specialised or unusual fluid formulations.

What Is an Oil & Fuel Dry Break Coupling?

A dry break coupling is a quick-release fluid connector designed to automatically seal both sides of a fluid line when disconnected. When the coupling is connected, the internal valves open to allow fluid to pass through. When separated, the double shut-off system closes both sides, helping to retain fluid within the system.

This makes dry break couplings particularly useful in motorsport applications where fuel tanks, oil coolers, engines, pumps, reservoirs or other fluid system components may need to be removed or changed without unnecessarily draining the complete system.

Designed for Motorsport Fluid Systems

Suitable for quick-release connections in fuel systems, engine oil circuits, oil cooler systems and differential oil cooler systems where components or fluid lines may need to be disconnected for servicing or replacement.

For motorsport use only. Not approved for road use.

Type: Dry Break Quick Release Designed for rapid connection and disconnection of fluid lines
Valve System: Double Shut-Off Automatically closes both sides when disconnected
Locking Mechanism: Bayonet Push-and-twist connection for fast, tool-free operation
Material: 6061-T6 Aluminium Lightweight, high-strength alloy
Finish: Black & Gunmetal Grey Anodised Protects against wear and corrosion
O-Ring Material: FPM (Viton) Selected for compatibility with oil and fuel-based fluids
Supplied As: Complete Coupling Set Includes both mating halves

Connection 1: AN Male JIC 37° · Male cone flare
Connection 2: AN Male JIC 37° · Male cone flare

Available oil and fuel dry break quick release coupling configurations
Product Code	Connection 1	Connection 2	Maximum Operating Pressure	Flow Diameter
CPL-DRY-OF-AN8	AN8 Male 3/4"-16 UNF	AN8 Male 3/4"-16 UNF	1,250 PSI 86.2 bar	9.95mm 0.39"

Overall Length: 87mm 3.42" · Including threads
Maximum Width: 27.5mm 1.08"
Weight: 71g 0.15lb

Petrol
Diesel
Race Fuel
Engine Oil
Gear Oil

FPM (Viton) seals provide compatibility with a range of oil and fuel-based fluids. Compatibility should be confirmed when using specialised or unusual fluid formulations.

Fuel Systems
Engine Oil Systems
Oil Cooler Systems
Differential Oil Coolers
Motorsport Fluid Systems

This coupling is intended for motorsport use only and is not approved for road use.

Free repair or replacement for two years from the date of purchase. Learn more

Frequently Asked Questions

What is an oil and fuel dry break coupling?
An oil and fuel dry break coupling is a quick-release fluid connector that allows a fluid line to be separated quickly and cleanly. Internal shut-off valves automatically close both sides when disconnected, helping to minimise fluid loss and contamination.
How does a dry break coupling work?
When the two halves are connected using the bayonet locking mechanism, the internal valves open to allow fluid to flow through the coupling. When disconnected, the double shut-off system automatically closes both sides, helping to retain fluid within the separated sections of the system.
Do I need tools to disconnect the dry break coupling?
No. The coupling uses a bayonet locking mechanism designed for fast, tool-free connection and disconnection.
What can these dry break couplings be used for?
They are designed for motorsport oil and fuel systems, including fuel lines, engine oil systems, oil cooler circuits and differential oil coolers where a quick-release fluid connection is required.
Which fluids are compatible?
The couplings use FPM (Viton) O-ring seals and are specified for petrol, diesel, race fuel, engine oil and gear oil. Compatibility should be confirmed when using specialised or unusual fluid formulations.
What type of connections do the couplings use?
Both mating halves use male AN connections with JIC 37° male cone flares for connection to compatible female AN fittings. See the available options for exact connection sizes.
What material are the dry break couplings made from?
The couplings are manufactured from 6061-T6 aluminium with a black and gunmetal grey anodised finish.
Are both halves of the dry break coupling included?
Yes. Each coupling is supplied as a complete set with both mating halves.
Are these dry break couplings suitable for road use?
No. These Oil & Fuel Dry Break Quick Release Couplings are intended for motorsport use only and are not approved for road use.
How should I maintain an oil or fuel dry break coupling?
Regularly inspect the coupling, valves and sealing surfaces for damage, wear or contamination and keep both halves clean when disconnected. Any cleaning or lubrication products used should be compatible with the FPM (Viton) seals and the fluid used in the system.