PD 4.25 Litre AFFF Fire Extinguisher System (Mechanical or Electrical)

The 4.25 Litre AFFF Fire Extinguisher System is an FIA homologated motorsport fire suppression system, designed for race, rally and competition vehicles requiring certified safety, reliability and long-term performance.

FIA homologated to EX056-19 and compliant with Motorsport UK regulations, this system uses AFFF foam (Aqueous Film Forming Foam) to deliver fast and effective suppression of fuel and electrical fires in motorsport environments.

This system is available in both mechanical and electrical activation options, allowing installation flexibility depending on vehicle setup and competition requirements.

Mechanical vs Electrical Options

Mechanical Activation System

• Manual pull cable activation
• Simple, proven motorsport standard
• Ideal for traditional race and rally installations
• Lightweight and robust operation
• Cylinder weight: 6.21 kg

Electrical Activation System

• Electronic trigger activation
• Suitable for modern race car electrical systems
• Clean installation with dashboard or switch panel control
• Cylinder weight: 6.04 kg

Both systems share the same FIA-approved suppression performance and 16-year service life cycle.

Long-Term Cost of Ownership (Key Benefit)

One of the major advantages of this system is its extended service life, which significantly reduces long-term cost compared to traditional steel extinguishers.

• Typical entry-level system (~£225) with a 10-year life cycle = approx. £22.50 per year
• This system with a 16-year life cycle = approx. £18.00 per year

This results in a lower annual cost of ownership, despite higher initial specification and build quality. In addition, this system offers a lightweight advantage, with reduced mass compared to many steel alternatives — improving overall vehicle performance and handling balance.

Why Choose This System?

This extinguisher system is engineered for performance, compliance and long-term cost efficiency:

• 16-year service life cycle reduces replacement frequency
• FIA homologated for competition use
• Motorsport UK compliant
• Lightweight construction for improved vehicle performance
• Suitable for both mechanical and electrical installations

Compared to traditional steel systems, the extended service life significantly reduces long-term cost of ownership while maintaining full FIA compliance.

FIA Motorsport Safety Compliance

• FIA Homologated: EX056-19
• Motorsport UK Compliant
• Approved for race, rally and circuit competition use
• Suitable for professional motorsport safety requirements

Performance & Construction Benefits

• 4.25 litre AFFF foam capacity
• Rapid suppression of fuel and electrical fires
• Choice of mechanical or electrical activation
• Lightweight motorsport-specific design
• Corrosion-resistant construction
• Built for vibration and competition environments

Motorsport Applications

Suitable for:

• Stage rally cars
• Circuit racing vehicles
• Track day builds
• Endurance motorsport
• FIA-compliant competition cars

Frequently Asked Questions (AEO Optimised)

What is a 4.25L AFFF fire extinguisher system?

It is an FIA approved motorsport fire suppression system used to protect race and rally vehicles from fuel and electrical fires.

What is the difference between mechanical and electrical systems?

Mechanical systems use a manual pull cable, while electrical systems use an electronic activation switch or button.

Can I buy spares for these systems?

Yes. We have a full range of spares HERE.

Do you have extra nozzles available?

 Yes we do, you can find a full range of nozzles HERE.

Is this FIA approved?

Yes. It is FIA homologated to EX056-19 and Motorsport UK compliant.

What is the advantage of the 16-year life cycle?

It reduces long-term replacement frequency and lowers overall cost of ownership.

Can this be used in rally cars?

Yes. It is widely used in rally, race and circuit competition vehicles.