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Vehicle Fit

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


  • Mounts in fuel tank
  • Replaces dealer part numbers: 25344956, 19180114
  • Outlets: 3
  • Plug Connections: 2
  • 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
  • Only fits models with the following GM engines as listed in descriptions:
    • V6 3.1L
    • V6 3.4L
    • V6 3.5L
    • V6 3.8L (Non Super Charged)

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

Attention California Customers:

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

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 : Disconnecting the Fuel Pump Relay (0:45)
    • Turn the vehicle on and run the engine
    • Open the fuse box door
    • Locate and remove the fuel pump relay with pliers
    • Insert the fuel pump relay into the fuse box
    • Close the fuse box door
  2. step : Removing the Fuel Pump Panel (1:05)
    • Pull the back seats down
    • Pull the trim and carpet apart
    • Remove the 10mm bolts from the fuel pump panel
    • Pry up on the panel with a flat blade screwdriver
  3. step : Removing the Fuel Pump (2:07)
    • Pull up on the pin from the sending unit
    • Disconnect the sending unit wiring harnesses
    • Push the outside fuel lines in, push down on the tab, and pull them free
    • Push the tab on the center fuel line and pull it free
    • Hammer the locking ring with a flat blade screwdriver to turn the locking ring
    • Lift the locking ring up and off
    • Pull the fuel pump up
    • Let the pump drain
    • Lift the fuel pump up and out
  4. step : Preparing the Fuel Pump (3:55)
    • Apply the level sensor to the new fuel pump
    • Remove the fuel line clips from the old sensing unit
    • Remove the packing cap from the new fuel pump
    • Insert the fuel line clips onto the new fuel pump
    • Cut off the old sending unit wiring harness with the blue strip with wire cutters
    • Strip a quarter of an inch off the old wires with wire cutters
    • Apply the blue connectors on the grey and black wire
    • Apply the red connectors to the purple and black and white wire
    • Connect the new sending unit harness to the connectors
  5. step : Installing the Fuel Pump (7:39)
    • Place the fuel pump and sending unit into the fuel tank
    • Fit the locking ring into place and line up the slots with the tabs without pinching the harnesses
    • Twist the ring clockwise with a flat blade screwdriver and hammer
    • Remove one of the posts from the locking ring with a pair of pliers
    • Connect the pin to the sending unit
    • Connect the wiring harnesses to the fuel pump
    • Connect the fuel lines
  6. step : Reinstalling the Fuel Pump Panel (10:20)
    • Replace the panel
    • Insert and tighten the 10mm bolts
    • Cover the panel with the trim and carpet
    • Pull the back seats up

Tools needed for replacement:

    General Tools

  • Hammer

  • Pliers, Cutters & misc Wrenches

  • Wire Cutters
  • Wire End Cutters
  • Needle nose pliers

  • Ratchets & Related

  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 10mm Socket

4.61/ 5.0
33 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Fuel pump elec.
Received in 3 days. Exact replacement and works GREAT! Very satisfied. Definitely would recommend to you. Gary from Gun Barrel City, TX.
January 28, 2017
Vary Slow
Still waiting for a replacement pump, the first one you sent didnt have a the top rubber fuel pump gasket in the box.
February 6, 2017
Fuel Pump
I was pleased with the price, I liked the video link to help with the installation. It was delivered before the stated date. Whats not to like ? Will use 1A Auto again for my next purchase. Thanks
March 7, 2017
Perfect replacement.
Easy to install. Pleased with performance so far. Arrived on time.
March 15, 2017
Works great. Now to see how long it will last.....
March 21, 2017
2003 Chevy impala fuel pump
I was told I had to drop the gas tank. A1 video was correct and it was into the back seat and reach into the truck with zero effort. Previous owner sold the car to me based on false info. My gain with no pain
March 25, 2017
Worked great
Unit was as advertised and simple instructions for installing.The old one was a bit cantankerous to get out as was to be expected.
June 17, 2017
Solved my problem for cheaper than anywhere else. Thank you again 1aauto!!
July 11, 2017
2005 Chevy Impala Fuel pump
Excellent service and shipping was very fast. The part works great. I will be ordering from this company in the future. THANK YOU..
July 19, 2017
Fit, form, and finish.
Installation went without a hitch, part was of the same weight, and nearly identical to the oem. I was surprised by the quality of the unit compared to the oem also, it seemed to be made of beefier components, at a quarter of the price. Thanks 1aauto!
July 29, 2017
Didnt work.
I installed fuel pump in my 2003 impala correctly and still didnt work , my gas gauge still jumps up and down , and also for the connectors , on the old connector for the impala it came with 4 wire colors which are black , gray , purple and black with white stripe, the 1A auto one came with 2 black wires, gray and purple so it made it confusing. My gauge doesnt work now at all
August 11, 2017
The fuel pump I bought worked great and the instructions were well explained, I am a believer I 1aauto!
August 14, 2017
Wiring a Problem
It all went in pretty easy and fixed the problem. There was one concern the wires that come with this pump are not correctly color coded. Original wiring has one black wire with stripe and one solid black wire. The wires that came with the pump has two black wires both solid. Make sure you keep the wiring diagram that come with the new pump and the old original connector as it has letters on that will match the diagram on the instruction sheet. Between the two I was able to figure it out.
August 21, 2017
Dont go cheap
Bought this pump because of the price. My old pumps sending unit would work intermittently and since the car has over 200K miles on it, I didnt want to spend a lot of money to replace it. Now I am learning that you should spend the extra $$ because this one is still on full and I have driven over 200 miles on it. So I would recommend paying the extra money and get a better unit
August 28, 2017
Perfect Fit
The fuel gauge was reading erratically on my 2003 Buick Regal, so I decided to replace the fuel pump to correct the problem. Part arrived ahead of estimated delivery timing, and the installation was exactly as shown on the instructional video. The wire colors on the cars harness matched exactly with the provided connector and I had the job completed within two hours - including clean up. Not bad for the first time. I would recommend watching an instructional youtube video on the fuel line connections which can be a little tricky, and take care when removing the two hose clips that must be re-used on the new pump assembly. Fuel gauge works again and I saved several hundred dollars by avoiding the dealership service department. Thanks 1A Auto!
November 21, 2017
Works great much cheaper than part elsewhere
Replacement fuel pump works great, was easy to install other than having break off one of the metal posts on the metal ring that holds the fuel pump in place. I did get it done but was a struggle. The video perfectly shows every step for how to do the job.
November 21, 2017
Replacing sending unit on a 2004 Monte Carlo
Everything went great ,same as in the video. Saved $540.00 on labor that the garage wanted to do it. Thanks. J. Warburton.
November 27, 2017
I have 0 complaints
This is the new site where I purchase any/ everything I need for my car... Parts are 100% garenteed, and they had it at my doorstep in 2 Days
December 11, 2017
Quality products
Good quality at great price. I have done many order with a1 auto and never got wrong or bad parts. Keep up the good work
February 10, 2018
Fuel Pump & Sending Unit
A perfect fit and 1As how to video made it super easy. They have some of the best prices around. Their customer service is great as well.
February 23, 2018
Fuel pump & Sending Unit Module
Received part early and with no hassels. Watched video on how to install and had no problem installing. Product seems tp be perforninh as it should and is way cheaper yhan a dealer.I would recommend this product. The only thing I did different than what was shown is I vacuumed around pump before taking it out.
March 16, 2018
Buick Regal Owner....
I was very impressed with 1A-Auto for great service and true replacement parts. I have purchased many parts and will continue to use 1A-Auto for years to come. Thomas Browning
April 27, 2018
May 3, 2018
Fuel pump
Great replacement part. Everything fit great and is still working great.
June 11, 2018
As expected
Would recommend it to anyone was simple to install
June 15, 2018
Very happy with fule pump was fast getting here and works perfect and great price.
July 9, 2018
Excellent product
Very satisfied with the product excellent product as pictured and as described couldnt ask for a better fit and ease of installation thank you all so much
July 18, 2018
The fuel pump assembly for my impala works great. I have been using it now for over a month with no problems. I recommend buying it versus locally. The money saved is outstanding.
August 11, 2018
very satisfied
I was a little unsure about ordering parts for my car online, but since I did it I found that there was nothing to worry about. We took the part when it came and dispite the fact that book time to replace the part we did it in only one hour with no problems , we found that it was a direct fit and it worked first time out of the gate. With the experience I had I will be ordering more parts for my car in the near future.
August 17, 2018
Great Pump
Great Pump. It is the sane as the original except one plug that has been upgradet, but on the video that 1AAuto supplied clearly shows how to make the transition from the old to the new plug. I have been driving the car for a couple of weeks and no issues. I am pretty happy with the product
August 26, 2018
Quality product I don’t order parts on line very much being a technician This was fror my own personal use and the product was well built vehicle is running better than ever shipping was fast and the price was right highly recommend 1aauto for all your on line automotive needs
September 14, 2018
Bolts right up.
Bought this for my sons 2000 Buick Regal. The installation is very straightforward, unit bolts right up but you do have to change the wiring. All in all a very easy job and it got his gas gauge working again.
October 2, 2018
Best part
Didnt know how easy it was to order. When it got here, everything was there and easy to do. Step by step without having part the miss or extra part, it was perfect. It toke tow day to get here. Looking on the web site was easy too. Plus watching them in youtube explain it was nice of them to do that.
October 30, 2018
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
how to disconect the fuel ines??
Todd G November 4, 2016
Need a disconnect tool, you should be able to rent one at the local parts store.
Douglas G November 4, 2016
Year Make Model Description
2000-2005Buick Century Buick Century Fuel Pump & Sending Unit Module V6 3.1L
2000-2004Buick Regal Buick Regal Fuel Pump & Sending Unit Module V6 3.8L (excluding Supercharged Models)
2000-2005Chevy Impala Chevy Impala Fuel Pump & Sending Unit Module V6 3.4L
2000-2003Chevy Impala Chevy Impala Fuel Pump & Sending Unit Module V6 3.8L
2004-2005Chevy Impala Chevy Impala Fuel Pump & Sending Unit Module V6 3.8L (excluding Supercharged Models)
2000-2003Chevy Monte Carlo Chevy Monte Carlo Fuel Pump & Sending Unit Module V6 3.8L
2000-2005Chevy Monte Carlo Chevy Monte Carlo Fuel Pump & Sending Unit Module V6 3.4L
2004-2005Chevy Monte Carlo Chevy Monte Carlo Fuel Pump & Sending Unit Module V6 3.8L (excluding Supercharged Models)
2001-2002Oldsmobile Intrigue Olds Intrigue Fuel Pump & Sending Unit Module V6 3.5L
2001-2003Pontiac Grand Prix Pontiac Grand Prix Fuel Pump & Sending Unit Module V6 3.1L
2001-2003Pontiac Grand Prix Pontiac Grand Prix Fuel Pump & Sending Unit Module V6 3.8L (excluding Supercharged Models)
Part #: 1AFPU01117

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:

(11:21 min)