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, oil and coolant 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.
High-Flow AN8 Connection

AN8 male connections on both coupling halves provide a 10mm internal flow diameter, making the coupling well suited to oil, fuel and other fluid systems where maintaining good flow is important.
1,250 PSI Maximum Operating Pressure

Rated to a maximum operating pressure of 1,250 PSI (86.2 bar) for demanding motorsport fluid systems.
FPM (Viton) Seals

FPM (Viton) O-ring seals provide compatibility with a wide range of oil and fuel-based fluids, including petrol, diesel, race fuel, engine oil, power steering fluid and gear oil.

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

Whether you're creating a quick-release connection for a fuel system, engine oil circuit, oil cooler, power steering system or differential oil cooler, the Oil & Fuel Dry Break Quick Release Coupling provides a compact, lightweight and reusable connection designed to make maintenance and component changes quicker and cleaner.

For motorsport use only. Not approved for road use.

Coupling 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 to minimise fluid loss and contamination
Locking Mechanism: Bayonet Push-and-twist connection for fast, secure and tool-free operation
Supplied As: Complete Coupling Set Includes both male and female mating halves

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

3/4"-16 UNF AN8 · JIC 37° flare

Maximum Operating Pressure: 1,250 PSI 86.2 bar
Flow Diameter: 10mm 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

Fluid Compatibility: FPM (Viton) seals provide compatibility with a wide range of oil and fuel-based fluids. Compatibility should be confirmed when using specialised or unusual fuel 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 hose or fluid line to be separated quickly and cleanly. Internal shut-off valves automatically close both sides when disconnected, helping to minimise fluid loss and reduce contamination entering the system.
How does a dry break coupling work?
When the two halves of the dry break coupling 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, making it particularly useful for motorsport systems where fluid lines may need to be removed or changed regularly.
What can the AN8 dry break coupling be used for?
The AN8 coupling is designed for motorsport oil, fuel and coolant systems. Compatible applications include fuel lines, engine oil systems, oil cooler circuits, power steering systems and differential oil coolers where a quick-release fluid connection is required.
Which fluids are compatible?
The coupling uses FPM (Viton) O-ring seals and is specified for use with petrol, diesel, race fuel, engine oil, power steering fluid and gear oil. Always confirm compatibility with the specific fluid being used where its formulation is unusual or specialised.
What size connections does the coupling use?
Both mating halves use AN8 male connections with a 3/4"-16 UNF thread and AN/JIC 37° flare, allowing connection to compatible AN8 female hose fittings.
What is the flow diameter?
The AN8 dry break coupling has an internal flow diameter of 9.95mm (0.39"), providing a large fluid passage for compatible oil, fuel and other motorsport fluid systems.
What is the maximum operating pressure?
The AN8 Oil & Fuel Dry Break Quick Release Coupling has a maximum operating pressure of 1,250 PSI (86.2 bar).
What material is the dry break coupling made from?
The coupling is manufactured from 6061-T6 aluminium, providing a lightweight, high-strength construction suitable for demanding motorsport fluid systems. It features a black and silver anodised finish for additional wear and corrosion protection.
Are both halves of the dry break coupling included?
Yes. The coupling is supplied as a complete set with both male and female 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 coupling's FPM (Viton) seals and the fluid used in the system.