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HOLLEY GM LS Filter Regulator AN6, 58 PSI

HOLLEY GM LS Filter Regulator AN6, 58 PSI

Original price was: £116.39.Current price is: £110.57. Inc. VAT

SKU: HOL162-591 Categories: , , Brand:

Description

Part Number: 162-591

Holley EFI GM-Style Fuel Filter & Bypass Pressure Regulator (-6AN)

Engineered to simplify your LS swap or high-performance EFI fuel plumbing, the Holley 162-591 combines a 5-micron nominal fuel filter with a 58 PSI fixed bypass regulator in a premium stainless-steel body.

Key Features

  • ☑ Integrated 2-in-1 Design: Combines a 5-micron fuel filter and a 58 PSI bypass pressure regulator in one compact housing.
  • ☑ -6AN Male Connections: Features -6AN male fittings on the inlet, outlet, and return ports for clean, secure braided fuel hose plumbing.
  • ☑ Stainless Steel Construction: Premium stainless steel body provides superior corrosion resistance for long-term motorsport reliability.
  • ☑ LS Swap Essential: Factory preset to 58 PSI static pressure, ideal for GM LS-series engine swaps and aftermarket EFI systems.
  • ☑ Bypass Return Architecture: Requires a single return line back to the fuel tank to prevent vapor lock and pressure spikes.

Technical Specifications


Brand Holley EFI
Part Number 162-591
Product Type Fuel Pressure Regulator & Filter Assembly
Style GM C5 Style / Bypass Return
Fixed Pressure Rating 58 PSI (Non-Adjustable)
Filter Rating 5 Micron (Nominal)
Inlet / Outlet / Return -6AN Male Fittings
Material Stainless Steel
Max Recommended Pump Flow 450 LPH

What’s Included in the Box

  • 1 x Holley EFI GM-Style Fuel Filter / 58 PSI Regulator Assembly (-6AN Male Ports)
  • 1 x Mounting Bracket Assembly

Holley EFI components set the industry standard for performance fuel delivery. Designed to streamline plumbing while protecting your injectors with 5-micron filtration, the 162-591 filter regulator delivers exact pressure stability for your LS or high-demand engine build. Contact JP Racing today for expert technical assistance and rapid UK delivery on all Holley motorsport parts.

Frequently Asked Questions

The Holley 162-591 features a fixed internal bypass regulator preset to 58 PSI. It is non-adjustable and designed specifically for GM LS-series engine swaps and other electronic fuel injection (EFI) systems requiring 58 PSI static fuel pressure.

This model (162-591) comes equipped with male -6AN connections on all three ports: one inlet from the fuel pump, one outlet to the fuel rail, and one return outlet back to the fuel tank. This allows easy integration with custom AN braided fuel lines.

Yes, Holley recommends using this filter regulator with fuel pumps rated up to 450 LPH (litres per hour). Pumps with higher flow rates may overpower the internal bypass orifice, causing fuel pressure to creep above the target 58 PSI.

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