OSIAS 340LPH High Performance Fuel Pump “Replace Walbro 255LPH GSS342” For Honda Civic Accord Elantra Chevrolet Dodge Brand New


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Quality & Warranty

Lifetime Year Warranty

These fuel pumps are all made up of first-class material in order to strengthen the durability and extend the usage life.The all procedures are executed strictly according ISO/TS1649 and QS900 standard which is highest quality class for OEM in auto industry.Every pump is 100% tested before shipment.


The OSIAS 340 high pressure pump is capable of supporting applications of up to around 700-800bhp. This pump is also an ideal direct OEM replacement for stock OEM pumps that have gone faulty.

This OSIAS 340 pump is very similar to the popular Walbro 255 GSS342 (similar sized dimensions), with more flow. It's a high powered 340LPH fuel pump designed for use in many auto applications, whether it be daily drivers, fast road or if you're simply just looking to upgrade or replace your faulty fuel pump.

Pump Introduction:

The 340 Fuel Pump is a high-output, in-tank, electric fuel pump that fits most popular EFI applications. It is a compact, lightweight pump that bolts into many existing hanger assemblies. What sets the 340 Pump apart is its superior flow throughout a wide pressure range. Compared to other popular aftermarket pumps, at 40 psi the 340 boasts more than 340 lph. That's over 30% more 255lph pump. This pump is ideal for applications requiring more flow while retaining the factory lines and mounting provisions available in the OE configuration. The 340 is also perfect for use as a universal replacement for applications that require more flow to support forced air power adders such as turbo and supercharged applications.
Composite Turbine Impeller design brings quiet operation
Offset Inlet easily to install, In-line with outlet
39mm diameter fits most applications
Designed for high output naturally aspirated and forced induction EFI vehicles
For gasoline vehicles (pump life may be diminished when used with E85 fuel)
Can be used with carbureted or EFI applications
Turbine pump mechanism increases durability and can be used in pulse modulated applications.
Typical & complete kits exactly same as above title picture showed.

Technical Data:

Min Voltage Input:6V
Max Voltage Input:18V
PRV Activation:0-100PSI
Flow Rate:340LPH/40PSI(13.5V)
Horsepower Capabilities: Up to 800hp for naturally aspirated engines & 750hp for supercharged or turbo engines.

Mechanical Spec:

Overall Length (tip to tip): 5"(123MM)
Weight:12.6oz (360g)
Length of Pump Body Metal Case: 3 1/8"(80MM)
Pump Body Diameter: 1 1/2"(39MM)
Inlet Fitting: 7.7mm ID, 11.0mm OD
Outlet Fitting: 5/16" hose clamp

Kit Contents:

1 x Genuine OSIAS 340 Fuel Pump
(For gasoline vehicles, In-tank design, E85 Compatible)
2 x Gradient density Fuel strainers, with Lock ring
(Two strainers included to cover all models)
1 x 8*280mm flex hose
1 x Rubber hose
1 x Wiring connector
2 x Crimp connectors
2 x Hose clamps
1 x Rubber base
2 x Zip-ties

Details as PICTURES below


If you are not sure about the Model, please send the Year/Make/Model/Engine to our staff, and we will try our best to reply to you as soon as possible.

Compatible Vehicles:

1994-2001 Acura Integra
2002-2006 Acura RSX
1995-1998 Eagle Talon Turbo AWD&FWD
1990-1994 Eagle Talon FWD Turbo
1995-1998 Plymouth Laser Turbo AWD&FWD
1990-1994 Plymouth Laser FWD Turbo
1999-2000 Ford Lightning Pick Up (Requires 2)
1997-1998 Ford F150
1999-2004 Ford F150
1996-1997 Ford Mustang Cobra
1993-1997 Ford Probe GT
2003-2004 Ford Crown Vic/Mercury Marauder (Requires unknown modification)
1997-2002 Saturn SC,SL,SW
1994-1997 Honda Accord
1998-2002 Honda Accord
1992-2000 Honda Civic
1999-2005 Honda S2000
1997-2001 Honda Prelude
1997-2001 Hyundai Tiburon
1991-2001 Infiniti Q45
1989-1993 Mazda Miata
1994-2005 Mazda Miata
1993-1997 Mazda MX6
1995-1998 Mazda Protege
1995-1998 Mitsubishi Eclipse AWD&FWD Turbo
1990-1994 Mitsubishi Eclipse
1995-1998 Mitsubishi Eclipse
2003-2007 Mitsubishi EVO 8&9 (Factory basket assemby MUST be replaced before converting to a 340 Pump. Note: If converting to E85, factory basket assembly MIUST be eliminated or modified.)
1985-1990 Mitsubishi Galant
1991-1997 Jeep Wrangler
1997-2004 Jeep Wrangler
1997-2001 Jeep Cherokee
1997-1998 Jeep Grand Cherokee
1986-1995 Nissan D21 Pick Up
1995-1998 Nissan 200SX
1995-1998 Nissan 200SX SE-R
1990-1996 Nissan 300ZX
1998-1999 Nissan Sentra
1998-1999 Nissan Sentra SE
1996-2001 Nissan Altima
1997-2007 Subaru Forester
2002-2006 Subaru Impreza WRX
2004-2007 Subaru Impreza WRX/STi
1990-2007 Subaru Legacy
1994-1998 Toyota Supra
1993-1998 Toyota T100 (Requires unknown modification)
1995-2001 Toyota Tacoma (Requires unknown modification)
1993-2000 Lexus GS300
1992-2000 Lexus GS400
1992-2000 Lexus SC300
1992-2000 Lexus SC400

Additional information

Brand Name




Manufacturer Part Number


Country/Region of Manufacture


Placement on Vehicle

oil tank

Item Height


Item Length


Material Type


Item Weight


Special Features


Other Part Number


Item Width





3 Years



Fuel Pump Type


Fitment Type


Non-Domestic Product


Mounting Hardware Included


Modified Item


Custom Bundle


Interchange Part Number

DW300, GSS342, 11142, 50-1000

Surface Finish



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