Radium Engineering 20-0178 Direct-Mount Fuel Pulse Damper FPD-R - 3/8" NPT

Vehicle Fitment

• Universal - for EFI systems with fuel rails using 3/8" NPT ports

Features

• CNC-machined anodized aluminum top and body
• Direct-mount design fits rail with 3/8" NPT port
• Internal diaphragm stabilizes fuel pressure pulses
• Includes vacuum/boost reference port for rising-rate regulators
• Stainless steel hardware and O-rings included
• Fully serviceable - cap slides off for maintenance
• Compact size (1.64" length) ideal for tight engine bays
• Suitable for gasoline, ethanol blends, methanol, and race fuels

Specifications

• Material: Billet aluminum, anodized
• Port type: 3/8" NPT male rail mount
• Length: 1.64" (direct-mount configuration)
• Vacuum port: 4 mm ID hose barb (Y-fitting included)
• Fuel compatibility: Gasoline, E85, methanol, race fuels
• Weight: ~4 oz (per Radium documentation) :contentReference[oaicite:1]{index=1}

Included Components

• 1x Anodized billet fuel pulse damper body with top
• 1x Vacuum/boost hose barb and Y-fitting
• 1x Stainless steel mounting hardware kit
• 1x O-ring kit for reassembly
• 1x Installation instructions (PDF) :contentReference[oaicite:2]{index=2}

Product Description

The Radium Engineering 20-0178 FPD-R is a compact, direct-mount fuel pulse damper designed for EFI systems with 3/8" NPT ports. Its CNC-machined aluminum body and internal diaphragm smooth out fuel pressure oscillations caused by rapid injector switching - helping improve consistent fuel delivery and prevent idle surging or AF ratio spikes.

Featuring a vacuum/boost reference port, the FPD-R automatically compensates for pressure changes in rising-rate regulator setups. At just 1.64" long and weighing roughly 4 oz, it's ideal for tight engine bay installations. Fully serviceable with included stainless hardware and replacement O-ring kit, it supports gasoline, ethanol blends, methanol, and race fuels. Bolt it directly onto fed rails without drilling or modifications.