Walbro GSS342 255 LPH High Pressure In-Tank Fuel Pump
Walbro GSS342 255 LPH High Pressure In-Tank Fuel Pump, view 2
Walbro GSS342 255 LPH High Pressure In-Tank Fuel Pump, view 3
Walbro GSS342 255 LPH High Pressure In-Tank Fuel Pump, view 4
Walbro GSS342 255 LPH High Pressure In-Tank Fuel Pump, view 5
Walbro GSS342 255 LPH High Pressure In-Tank Fuel Pump
Walbro GSS342 255 LPH High Pressure In-Tank Fuel Pump, view 2
Walbro GSS342 255 LPH High Pressure In-Tank Fuel Pump, view 3
Walbro GSS342 255 LPH High Pressure In-Tank Fuel Pump, view 4
Walbro GSS342 255 LPH High Pressure In-Tank Fuel Pump, view 5

Walbro GSS342 255 LPH In-Tank Fuel Pump - Universal, 11mm Inlet Inline With Outlet

Walbro SKU: WALGSS342G3
Price
On Backorder – Order Now or Contact Us for Availability
Make sure this fits your vehicle Select your vehicle to confirm fitment before you order. Check
Shipping calculated at checkout.

The Walbro GSS342 is the pump most people mean by the Walbro 255: a high pressure in-tank pump rated at 255 LPH at 40 psi with a 112 psi maximum pressure, supporting builds up to about 550 hp. Its 11mm inlet sits in line with the outlet, and the 39mm body carries an internal check valve. It is rated for gasoline, not E85 or methanol, and drops into many factory pump hangers with the correct Walbro install kit, which is sold separately.

Specifications

Type High pressure in-tank electric fuel pump
Inlet 11mm, in line with outlet
Flow Rating 255 LPH at 40 psi
Max Pressure 112 psi
Supports Approx. 300-550 hp
Body Diameter 39mm
Valves Internal check valve
Fuel Gasoline (not for E85 or methanol)
Includes Pump only; install kit sold separately
Part Number GSS342G3

Shipping

  • Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
  • Standard, expedited, and overnight options at checkout.
  • Oversized items ship by freight and take longer.
  • Special order items follow a lead time we confirm with you individually before the order is committed.
  • Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
  • Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
  • International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

  • 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
  • Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
  • Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
  • Product images may be representative. The SKU and specifications in the listing are what ships.
  • Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Returns & Refunds · Warranty
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