This replacement electric fuel pump is just what you need to get your vehicle in good working order again!

Specifications:

  • Mounts in fuel tank
  • Complete module assembly
  • Replaces dealer part number: 25314321
  • Outlets: 3
  • Assembly includes the following parts:
    • Electric Fuel Pump
    • Plastic module
    • Fuel sending unit
      • Rheostat Range: 40-250 Ohms
    • Float
    • Strainer
  • Direct replacement
  • Correct electrical connections
  • Built to strict quality control standards
  • Fits models with the following harness connector tag ID #'s:
    • GAL
    • GAP
    • GAV
    • GFK

Note: This fuel pump includes the updated "flat" plug & harness. If your original is "square", the harness must be cut for the new harness to be spliced in.

Note: If your vehicle requires a match to an RPO (Regular Production Option) code, you can usually find it on your original window sticker and sometimes either on the inside of your trunk lid, spare tire cover, glove box door, or the front driver's side door shell.

This electric fuel pump module assembly with sending unit is a great replacement and has good cost savings over a dealer unit.

 

Our electrical and electronic parts are subject to strict quality control testing. Please ensure proper diagnosis of this item before purchasing as the item cannot be returned once installed or plugged in.

This fuel pump includes a new electrical connector harness. You will need to remove your existing electrical connector and install the new connector provided in order to install your new fuel pump (instructions are included with the pump).

This fuel pump is not a universal fit item. Because your vehicle’s original connector is prone to failure due to corrosion, cracking, loose pin housings, and wire crimp issues, the OE manufacturer has changed the shape of the connector, requiring the install of a new electrical connector during fuel pump service.

Rigorously Tested

Meets or exceeds all SAE fuel pump performance and durability standards

Highest Quality Material

Consistent high quality plastic molding media.

High-carbon motor commutator and brushes for longer pump life

Direct Fit Replacement

Guaranteed to fit and function correctly for your specific application

Item Condition: New

WARNING:  This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and birth defects or other reproductive harm.  For more information, go to www.P65Warnings.ca.gov.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

  1. step : Depressurize fuel system (1:30)
    • With the car running, open the hood and access the fuse center.
    • Pull out the fuel pump relay which is #18 in this car.
    • After awhile your car will stop running because it runs out of fuel.
  2. step : Disconnect battery (2:20)
    • Use an 8mm wrench to disconnect the negative battery cable
  3. step : Disconnect and remove fuel tank (2:30)
    • Spray the bolts on the straps holding the fuel tank with penetrating oil.
    • Loosen up the clamp at the top of the fuel neck.
    • Grab onto that hose and twist it free and pull it off.
    • Unplug the connectors by pulling out the safety tabs.
    • Unclip the green clip behind the fuel tank by prying the tab and pinching to disconnect the line.
    • Make sure you have a catch pan ready because this will leak fuel.
    • Repeat on the upper line with the blue tab.
    • Use a screwdriver to help if it’s difficult to reach.
    • Disconnect the rest of the hoses.
    • Loosen the heat shield between the exhaust and the tank.
    • Support the tank and remove the straps.
  4. step : Remove assembly (8:03)
    • Use your needle nose pliers to disconnect the locking tab at the top of the connector.
    • Unplug the wiring from the fuel pump assembly.
    • Use a chisel and hammer to remove the locking ring.
    • Pull the fuel pump assembly up and out.
    • Remove the old O ring
  5. step : Install new fuel pump (10:06)
    • Put in the new O ring
    • Place the new assembly in and lock the locking ring in place by turning it clockwise into the brackets.
    • Secure with hammer and chisel.
    • Plug in the new lead and use wire taps to connect the wiring with the old square ended lead.
    • New large black lead connects to the old black lead.
    • New thin black lead connects to old black and white lead.
    • Purple and purple leads connect as do the grey ones.
  6. step : Reinstall the fuel tank (13:49)
    • Jack the tank back up.
    • Bolt the straps back in, tightening the bolts with a hand wrench.
    • Reconnect all the harnesses.
    • Reconnect the big tube.
    • Reconnect all the fuel lines, remembering to remove the little green line protectors.
    • Secure the heat shield.
    • Reconnect the fuel neck.
  7. step : Finish up (15:40)
    • Put the fuel pump relay back in.
    • Reconnect the battery.
    • Cycle the key a couple times to make sure the fuel gauge is working.
    • Start the car and check underneath for any fuel leaks.

Tools needed for replacement:

    General Tools

  • Hammer
  • Floor Jack
  • Chisel
  • Drain Pan

  • Materials, Fluids, and Supplies

  • Rust Penetrant

  • Ratchets & Related

  • Socket Extensions
  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver
  • Phillips Head Screwdriver

  • Sockets - Metric

  • 7mm Socket
  • 13mm Socket
  • 10mm Socket

  • Wrenches - Metric

  • 8mm Wrench

4.8 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
8
2
0
0
0
Great Product; Even greater price!!
I was super satisfied with the product. It was a direct fit and everything lined up and wired up correctly. I am always weary of ordering products online, but www.1aauto.com curbed all of those fears by being super fast, super friendly and super blue collar affordable!!! Parts for the working man who is working on his own ride in the backyard to get back on the road can surely be found here!!! I will be a loyal customer from here on out!!
September 30, 2018
Purchased
1 month ago
Great Great part for the money
Part came in fast, was right part as described for the vehicle. Went in with ease. The only bad part was no instructions of wiring but have a book and online resource that helped me wire it up properly.. I waited on review to see if pup would fail quickly, and so fart 3 weeks and its still good. Very impressed on performance of part so far. I will start utilizing site for more parts i
need.
May 1, 2018
Purchased
6 months ago
Perfect!
Fit as described, quick install and worked correctly.
February 25, 2018
Purchased
over 2 years ago
1997 k1500 chev fuel pump
Got the item after 5 days in northern Canada,
Came well packaged and intact.
Pretty happy with service, just wish shipping was faster!
November 24, 2017
Purchased
11 months ago
Been in for a week and no problems. Hope it last at least 50k
November 21, 2017
Purchased
11 months ago
great product
very easy install. works as intended. Very good people to work with. Very good price. Would recommend your products and customer service to everybody. Thanks Larry
April 24, 2017
Purchased
1 year ago
great
the part fit perfect delivery was fast could not be happier
March 3, 2017
Purchased
1 year ago
Worked great once I found a video in you tube that allowed me to make modifications to the wiring harness. Was dissapointed to receive an item that does not give you options. CS provided some schematics but not of any use. Overall, satisfied. Prices and service is good! Thanks
February 23, 2017
Purchased
1 year ago
Fuel pump
The pump work realiy Thanks. Now I need a driver side eletric motor so I can let my window down.
February 15, 2017
Purchased
over 2 years ago
Fuel sending unit
Got it fast, installed it, started right up and the best part, $100 cheaper than autozone and thats great for me!
February 14, 2017
Purchased
1 year ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 2 questions Browse 2 questions and 5 answers
Is this part new or used?
Tasha on Apr 9, 2018
BEST ANSWER: The fuel pump is new and has worked perfectly since I installed it. Very pleased with the purchase!
Does this pump fit a 98 Chevy k1500 v8 5.7 4x4 extended cab?
Keiyalon S on Jul 11, 2018
BEST ANSWER: Yes, according to the information you supplied, the part you're looking at will be correct for your vehicle. If you have any other questions, please let us know.

Vehicle Fit

Year Make Model Description
1997-1998Chevy C1500 Truck Chevy C1500 Truck Fuel Pump & Sending Unit Module V6 4.3L
1998Chevy C1500 Truck Chevy C1500 Truck Fuel Pump & Sending Unit Module V8 5.7L
1998Chevy C1500 Truck Chevy C1500 Truck Fuel Pump & Sending Unit Module V8 5.0L
1999Chevy C1500 Truck Chevy C1500 Truck Fuel Pump & Sending Unit Module V8 5.0L without RPO Code 8J9 (RFI Filter Pump Assembly)
1999Chevy C1500 Truck Chevy C1500 Truck Fuel Pump & Sending Unit Module V8 5.7L without RPO Code 8J9 (RFI Filter Pump Assembly)
1998-1999Chevy C2500 Truck Chevy C2500 Truck Fuel Pump & Sending Unit Module V8 5.0L
1998-1999Chevy C2500 Truck Chevy C2500 Truck Fuel Pump & Sending Unit Module V8 5.7L
1999Chevy C2500 Truck Chevy C2500 Truck Fuel Pump & Sending Unit Module V8 5.7L without RPO Code 8J9 (RFI Filter Pump Assembly)
1998Chevy C3500 Truck Chevy C3500 Truck Fuel Pump & Sending Unit Module V8 5.7L
1999-2000Chevy C3500 Truck Chevy C3500 Truck Fuel Pump & Sending Unit Module V8 5.7L for Main Tank (excluding Cab & Chassis)
1997-1998Chevy K1500 Truck Chevy K1500 Truck Fuel Pump & Sending Unit Module V6 4.3L
1998Chevy K1500 Truck Chevy K1500 Truck Fuel Pump & Sending Unit Module V8 5.7L
1998Chevy K1500 Truck Chevy K1500 Truck Fuel Pump & Sending Unit Module V8 5.0L
1999Chevy K1500 Truck Chevy K1500 Truck Fuel Pump & Sending Unit Module V8 5.7L without RPO Code 8J9 (RFI Filter Pump Assembly)
1999Chevy K1500 Truck Chevy K1500 Truck Fuel Pump & Sending Unit Module V8 5.0L without RPO Code 8J9 (RFI Filter Pump Assembly)
1998-1999Chevy K2500 Truck Chevy K2500 Truck Fuel Pump & Sending Unit Module V8 5.7L
1999Chevy K2500 Truck Chevy K2500 Truck Fuel Pump & Sending Unit Module V8 5.7L without RPO Code 8J9 (RFI Filter Pump Assembly)
1998Chevy K3500 Truck Chevy K3500 Truck Fuel Pump & Sending Unit Module V8 5.7L
1999-2000Chevy K3500 Truck Chevy K3500 Truck Fuel Pump & Sending Unit Module V8 5.7L for Main Tank
1997-1998GMC C1500 Truck GMC C1500 Truck Fuel Pump & Sending Unit Module V6 4.3L
1998GMC C1500 Truck GMC C1500 Truck Fuel Pump & Sending Unit Module V8 5.0L
1998GMC C1500 Truck GMC C1500 Truck Fuel Pump & Sending Unit Module V8 5.7L
1999GMC C1500 Truck GMC C1500 Truck Fuel Pump & Sending Unit Module V8 5.7L without RPO Code 8J9 (RFI Filter Pump Assembly)
1999GMC C1500 Truck GMC C1500 Truck Fuel Pump & Sending Unit Module V8 5.0L without RPO Code 8J9 (RFI Filter Pump Assembly)
1998-1999GMC C2500 Truck GMC C2500 Truck Fuel Pump & Sending Unit Module V8 5.7L
1998-1999GMC C2500 Truck GMC C2500 Truck Fuel Pump & Sending Unit Module V8 5.0L
1999GMC C2500 Truck GMC C2500 Truck Fuel Pump & Sending Unit Module V8 5.7L without RPO Code 8J9 (RFI Filter Pump Assembly)
1998GMC C3500 Truck GMC C3500 Truck Fuel Pump & Sending Unit Module V8 5.7L
1999-2000GMC C3500 Truck GMC C3500 Truck Fuel Pump & Sending Unit Module V8 5.7L for Main Tank (excluding Cab & Chassis)
1997-1998GMC K1500 Truck GMC K1500 Truck Fuel Pump & Sending Unit Module V6 4.3L
1998GMC K1500 Truck GMC K1500 Truck Fuel Pump & Sending Unit Module V8 5.7L
1998GMC K1500 Truck GMC K1500 Truck Fuel Pump & Sending Unit Module V8 5.0L
1999GMC K1500 Truck GMC K1500 Truck Fuel Pump & Sending Unit Module V8 5.7L without RPO Code 8J9 (RFI Filter Pump Assembly)
1999GMC K1500 Truck GMC K1500 Truck Fuel Pump & Sending Unit Module V8 5.0L without RPO Code 8J9 (RFI Filter Pump Assembly)
1998GMC K2500 Truck GMC K2500 Truck Fuel Pump & Sending Unit Module V8 5.7L
1999GMC K2500 Truck GMC K2500 Truck Fuel Pump & Sending Unit Module V8 5.7L
1998GMC K3500 Truck GMC K3500 Truck Fuel Pump & Sending Unit Module V8 5.7L
1999-2000GMC K3500 Truck GMC K3500 Truck Fuel Pump & Sending Unit Module V8 5.7L for Main Tank

This part replaces:

  • Hollander 323-01159
  • Spectra Premium Industries TNKSP461M
  • OE # 25314321
Part #: 1AFPU00191


Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

How-to Video:

(16:55 min)