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Walbro Fuel Pump 255Lph (Part Number: )
Walbro Fuel Pump 255Lph (Part Number: )
Walbro Fuel Pump 255Lph (Part Number: )
Walbro Fuel Pump 255Lph (Part Number: )
Walbro Fuel Pump 255Lph (Part Number: )
Walbro Fuel Pump 255Lph
Read 35 Reviews | 20 Q&As
Part # GSS342
msrp: $165.58

In stock! Ships same day
Universal part

Features & Product Details

The Walbro GSS342 fuel pump is one of the most popular aftermarket fuel pumps on the market today. Flowing 255 Liters Per Hour it can flow enough fuel for most applications under 500 hp. This is for the pump only it does not include an installation kit. Vehicle installation kits are available and recommended with purchase.


Brand: Walbro
Fuel Flow: 255lph
Install Kit Included: No
Mfgr. Warranty: No Warranty
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.



35 Reviews
4.7 out of 5 Stars
5 Stars
4 Stars
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1 Stars
Customer Photos and Videos
No user media. You can upload a photo or video of your install by posting a review.
1 of 1 people found the following review helpful
Doesn't fit exactly 7 months ago
Works great but needs to be adapted, doesn't fit exactly like it should be
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0 of 1 people found the following review helpful
walbro fuel pump 2 years ago
Fast delivery and fuel pump drop in and start it up like a champ. Been 3 weeks since installed, thank you.
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0 of 1 people found the following review helpful
Walbro 255lph fuelpump for Subaru Sti GRF A-Line 2 years ago
price was reasonably cheap, product came in proper packaging, installation was straight forward with the exception of modifying the pump housing as the walbro was bigger than the oem pump. installation took around and hour+ car felt quite responsive as ive tuned the car prior to the pump installation.
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0 of 2 people found the following review helpful
Good while it lasted 4 years ago
I bought it and the fuel pump just died one month later.
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1 of 2 people found the following review helpful
Does the job 4 years ago
This fuel pump was installed on my 2015 Subaru WRX STI. It came highly recommended for the fuel pump to be upgraded for the Stage 2 set up. Installation was smooth. It pumped the fuel my car needed during the multiple pulls from dyno tuning. However, it is loud. I hear loud high pitch buzzing from inside and outside cabin. It does go away from to time to time. It seem to be a normal thing for aftermarket fuel pumps regardless of brands. Otherwise, my STI runs great at Stage 2 with this fuel pump. It does the job well.
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  • Q: 2006 Subaru Legacy GT  Corvo3 years ago

    Does this fuel pump fit my car without modification?
  • Q: When is this needed?  sikknt3 years ago

    I'm running a 20GXTR and 750cc injectors, my tuner swears I don't need it but I see so many other STi's with my similar setup with this pump.
  • Q: Walbro 255LPH rating  AMX3 years ago

    What's the max at the wheel power can this pump support for 07 sti?
    • 0 of 1 people found the following answer helpful

      A:  A fuel pump doesn't get rated for power, its classified by the amount of fuel it can provide. Normally this pump is good for around 365hp. Check with your tuner to see if this will be what you want for your power goals.

      Trevor C. @ RallySport Direct 3 years ago  
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  • Q: accessories to make it a kit  Kevroq4 years ago

    Will this fit 2015 STI and what other stuff will I need for the install (beside injector)
    • 1 of 1 people found the following answer helpful

      A:  This is a universal part, so we are unable to confirm fitment. This pump may require modification to the stock fuel pump housing in order to fit. You would need to purchase the universal install kit in addition to the pump.

      guest56ad69792a8d256e198b66b5 @
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  • Q: Drop in?  Racingthatsubbi4 years ago

    Does this drop in to a 07 sti and replace the stock pump or do I need to get the kit?
    • 0 of 1 people found the following answer helpful

      A:  This should fit your sti with no modification, and we recommend purchasing the install kit as well.

      Kyle A. @ RallySport Direct 4 years ago  
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This Part Fits

Universal Product
This item is non application specific.
Please verify compatibility before purchase. May require some modification for proper installation.