WALBRO/TI 255LPH UNIVERSAL EXTERNAL INLINE FUEL PUMP – GSL392

When your build starts asking for more fuel than your factory pump can deliver, the Genuine Walbro/TI 255LPH GSL392 is the pump the industry reaches for. It's one of the most proven external fuel pumps in motorsport and street performance, trusted for its consistent flow, compact footprint, and straightforward install — genuine stock, sourced through Racer Industries.

BUILT FOR BOOSTED AND HIGH-DEMAND FUEL SYSTEMS

Flowing 255 litres per hour with a 60 psi maximum pressure rating, the GSL392 delivers comparable flow to a Bosch 044 (220 lph @ 5 bar) and supports builds up to approximately 600HP, depending on fuel pressure and system configuration. As a pusher-style external pump, it's designed to be mounted as close to the tank as possible and below tank level for reliable fuel feed under load.

WHY BUILDERS TRUST WALBRO

Walbro/TI Automotive pumps have a long-standing reputation across circuit racing, drift, drag, and street performance for doing exactly what the spec sheet says, session after session. The GSL392 uses an all-aluminium housing for durability and heat dissipation, with a lightweight, compact design that suits tight engine bays and external mounting locations alike.

WHAT'S IN THE BOX

Every genuine Walbro GSL392 from Racer Industries includes the factory Walbro fitting kit — mounting brackets plus two barb fittings for inlet and outlet, sized for 5/16" (8mm) hose. Running AN line instead? The pump's own ports are 10mm x 1.0 female thread, so you can fit -6AN adapters in place of the supplied barbs.

Caution: Genuine Walbro/TI pumps are subject to a high rate of counterfeiting in the aftermarket. Racer Industries stocks authentic, factory-sourced units only.

Key Features:

  • 255 LPH Free Flow Rate – Comparable output to a Bosch 044 at 5 bar
  • 60 psi Maximum Pressure – Headroom for high-demand EFI, turbo, and supercharged applications
  • Genuine Walbro/TI Automotive Construction – All-aluminium housing, built for durability
  • 10mm x 1.0 Female-Threaded Ports – Compatible with barb or AN fitting setups
  • Includes Genuine Fitting Kit – Mounting brackets + 2x 5/16" (8mm) barb fittings
  • Compact, Lightweight Design – 6.44" length, 1.70" diameter for flexible mounting
  • Pusher-Style External Pump – Mount close to and below the tank for correct fuel feed

Specifications:

Specification Details
Brand Walbro / TI Automotive
Model GSL392
Type Universal External Inline Fuel Pump
Fuel Compatibility Petrol/Gasoline (not for use with E85)
Free Flow Rate 255 LPH (67 GPH)
Maximum Pressure 60 psi
Supported Power (approx.) Up to ~600HP, fuel-pressure dependent
Inlet / Outlet Port Thread 10mm x 1.0 female thread (both ports)
Included Fitting Kit Mounting brackets + 2x 5/16" (8mm) barb fittings
Housing Material Aluminium
Overall Length 6.44"
Outside Diameter 1.70"
Mounting Orientation Pusher-style; mount close to and below tank
Certification QS9000 certified

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