This AEM fuel pulse damper works in tandem with an AEM fuel pressure regulator to smooth out the pressure pulsations caused by injectors opening and closing as well as fuel pump operation under load.
Installation InstructionsSpecifications:
- Rated for 40-70 psi operating range
- AN6 ORB port sizing
- Engineered to stabilize pressure pulsations, ideal for applications with large fuel injectors and high-volume fuel pumps
- 1/8" NPT port on damper body for easy installation of a mechanical pressure gauge or pressure transducer
- Full anodized billet aluminum construction with stainless steel springs and a fluorosilicone diaphragm, compatible with any fuel
- Fittings included for damper/regulator and direct-mount installation
- Part Number: 25-4002
FAQ
What does a fuel pulse damper do?
It smooths out pressure pulsations caused by injectors opening and closing and by fuel pump operation under load, working in tandem with a fuel pressure regulator.
What pressure range is this damper rated for?
It is rated for a 40-70 psi operating range with AN6 ORB fittings.
Can I mount a gauge to this damper?
Yes, it includes a 1/8" NPT port on the damper body for a mechanical pressure gauge or pressure transducer.

