GM LS return style fuel system plumbing kit including a coil, connectors, and hoses on a white background
LS swap -6 AN fuel line kit with labeled fittings and technical specifications on a white background
Walbro 255 LPH LS fuel pump kit including hose, fittings, and filter labeled on a white background
GM LS Return Style Fuel System Plumbing Kit
GM LS return style fuel system plumbing kit including a coil, connectors, and hoses on a white background
LS swap -6 AN fuel line kit with labeled fittings and technical specifications on a white background
Walbro 255 LPH LS fuel pump kit including hose, fittings, and filter labeled on a white background
GM LS Return Style Fuel System Plumbing Kit

GM LS Return Style Fuel System Plumbing Kit

WA01021

$749.99
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Shipping calculated at checkout.

This GM LS Return Style Fuel System Plumbing Kit provides everything needed to properly plumb a return-style fuel system for your LS swap, rock crawler, buggy, or off-road race rig. This kit features a Walbro 255 LPH fuel pump, an industry standard known for consistently delivering high pressure flow to support up to 500+ HP, and high quality Fragola fittings and premium nylon race hose. The lightweight, flexible hose is significantly easier to route than traditional stainless braid and is fully compatible with modern pump gas and ethanol blends.

Included Components:

  • (6) -6 AN Straight Fittings
  • (3) -6 AN 90° Fittings
  • (1) 3/8" Quick Disconnect to -6 AN Straight Fitting
  • (1) 5/16" Quick Disconnect to -6 AN Straight Fitting
  • (1) Walbro 255 LPH Fuel Pump with Sleeve & Clamps
  • (2) Pump Fitting to -6 AN
  • (1) Fragola 10 Micron Premium Post Filter with -6 AN Fittings
  • (30 ft) -6 AN Premium Nylon Race Hose
Specifications
  • Fuel System Type: Return Style
  • Application: GM LS Engines
  • Hose Size: -6 AN
  • Hose Length: 30 Feet
  • Fuel Pump Flow Rating: 255 Liters Per Hour
  • Post Filter Rating: 10 Micron
  • Fitting Brand: Fragola Performance Systems
  • Hose Type: Premium Nylon Race Hose
Fitment
  • Designed for GM LS return-style fuel systems
  • Ideal for:
    • LS swaps
    • Tube chassis buggies
    • Rock crawlers
    • Ultra4 builds
    • Custom off-road applications

Note: Not intended for returnless factory fuel systems without proper conversion.

Tech Insight

A return-style fuel system provides superior pressure stability and heat management, making it ideal for the extreme fuel slosh and high RPMs of off-road racing. The setup utilizes a Walbro 255 LPH pump for reliable flow, 10-micron Fragola filtering, and -6 AN Fragola hoses for flexible, high capacity routing in tight spaces.