AEM 25-4002 6AN ORB 40-70PSI Fuel Pulse Damper (Universal Fit)

Vehicle Fitment

• Universal fit - compatible with aftermarket fuel systems using -6AN ORB ports

Features

• 6AN ORB 40-70 PSI fuel pulse damper for smoothing pressure pulsations
• Billet aluminum construction for durability and corrosion resistance
• Helps reduce fuel pressure spikes from injector opening/closing and pump operation
• Compatible with a wide range of fuel types (gasoline, race fuels, ethanol blends)
• Includes fittings for regulator or direct in-line mounting
• 1/8" NPT port for mechanical pressure gauge or transducer installation
• Improves fuel pressure stability in high-flow or high-injector-demand systems
• Manufacturer 1-year limited warranty

Specifications

• Port size: -6AN ORB inlet/outlet
• Pressure range: 40-70 PSI
• Material: billet aluminum body
• Inclusions: seal/gasket(s) included
• Mounting: regulator or fuel system compatible AN6 ORB locations
• Universal application - for use with many aftermarket fuel rails and regulators

Included Components

• 1x AEM 25-4002 fuel pulse damper
• Assorted ORB/AN fittings as required for installation
• Seal(s)/gasket(s) for proper sealing

Product Description

The AEM 25-4002 6AN ORB 40-70 PSI Fuel Pulse Damper is a universal fuel system accessory designed to stabilize pressure fluctuations in high-performance and aftermarket fuel systems. By smoothing out the pulsations caused by injector activity and fuel pump pulses, this billet aluminum damper helps maintain consistent fuel pressure for improved throttle response, idle quality, and overall fuel delivery stability in engines with large injectors or high flow demands.

Ideal for use with adjustable fuel pressure regulators and aftermarket fuel rails, the 25-4002 installs easily into systems with -6AN ORB ports and includes provision for adding a mechanical gauge or pressure transducer via a 1/8" NPT port. Whether you're building a racing fuel system or upgrading a street performance setup, this damper enhances fuel pressure control and contributes to smoother engine performance across a wide range of applications.