2000-01 Fuel Pump & Sending Unit Module - 1AFPU01102

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Vehicle Fit

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

This electric fuel pump module assembly features the following specifications:

  • Mounts in fuel tank
  • Replaces dealer part numbers: 19121628, 25315983
  • Complete module assembly
    • Electric fuel pump already mounted as shown
    • Sending unit attached
  • Includes items shown
  • Direct replacement
  • Correct electrical connections
  • Built to strict quality control standards

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.

Electrical Connector Instructions

  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

4.67/ 5.0
12 reviews
5 Stars
4 Stars
3 Stars
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1 Star
Hello everyone I purchase a fuel pump for my Denali 2001 and it was perfect my mechanic says it works great and fits perfect to.
March 2, 2017
Awesome service! We were out of town and didnt have a lot of money to spare. Auto zone was called and they were going to charge me 280.00 and then I found this site and got it for 70.00!!! So excited the part was as described and worked excellent. It got me home from 13 hours away.
July 17, 2017
Works Perfect and Saved Me Over $1,000...
The dealership wanted more than $1,100 to replace the fuel pump in my 2001 Suburban, but with the videos on I was able to do it myself in just a couple hours. I would recommend this part to anyone and I will continue to buy every part I can from
February 24, 2018
This is the best place I could find for my auto parts needs. No where else could I find the exact part that I needed at the most affordable price. Fuel pump works great, no issues with my vehicle since I installed it, I truly recommend this 1A auto parts to anyone that is working with a low budget like I was.
May 1, 2018
00 chevy fuel pump
Awesome part at the price and lifetime warranty all i have to say is I recommend 1AAuto to all my family and friends the only thing that would help is if the sending unit / fuel pump came with fuel line clips other ghan that install videos helped alot thanks 1aauto.
August 16, 2018
Standing ovation. 2 thumbs up
Oh it was perfect decision to order this product from this company. The shipping and handling was very quick. The package was nicely sealed as well as the parts in it. Direction were easy for me to get the job did correct. 5stars to this supplier
November 3, 2018
Great product
First time buying a part from 1aauto. Shipped fast and arrived right one time. The fuel pump was very easy to install and hook up. Supplied extra cables for wiring harness but the original connector worked. It didnt feel cheap, felt very sturdy and robust. Just as the OEM part that came with the truck. I definitely recommend 1aauto, great company and products.
November 6, 2018
The part fit perfect and fixed the problem. I wish the part came with the internal hose clips, because I broke the ones on the old pump while I was trying to disconnect the fuel lines from the pump.
December 1, 2018
My husband was right
Our fuel pump went out and we asked the local Auto parts shop for a price. They wanted $250 for it! So my husband went online and found this one for $60. I told him no way! There must be something wrong if it was that inexpensive. He insisted that we buy this one because his co worker buys from here and has had a great experience. So, long story short.... He was right. He installed the fuel pump and it works beautifully. Still going strong! And now I have to eat my words. But all is good, because my car is running! Haha
December 2, 2018
Always a great ordering experience
Great product and better service from 1a! Fast shipping
December 3, 2018
No wonder why they call it A1 auto.
I have be dealing with A1 auto for a few years now and have no complaints at all. If I get a defecfive part, “very rairly� they send me out another one the same day. Service is fantastic. Staff is great, very knowledgeable and do not try to quicken your call. They really do try hard to understand you and find the correct part you need. The parts most of them are guarrenteed for life. This make me very comfortable with them and ordering is a breeze! Also there videos are super and very informative. I have been an mechanic for over 45 years and with help from A1 auto I am not stopping anytime soon. Thank you all and I will be calling you tomorrow for more parts I need. Sincerely yours, James M. Fischer
December 8, 2018
Satisfied customer
The pump arrived quickly, and very well packaged. It was an exact match for the original. In combination with 1a autos helpful videos the install was a breeze.
December 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
is this product new or rebuilt?
Brandon P February 25, 2016
James D February 25, 2016
Brian F February 25, 2016
It appeared to be new, and solved my problem.
Blair P February 25, 2016
R Y December 2, 2018
Year Make Model Description
2000-2001Chevy Suburban 1500 Chevy Suburban 1500 Fuel Pump & Sending Unit Module
2000-2001GMC Yukon XL 1500 GMC Yukon XL 1500 Fuel Pump & Sending Unit Module
Part #: 1AFPU01102

Order must be placed by 4pm ET
Delivery options for:

Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Get it in: 2 - 4 Business Days

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How-to Video:

(16:54 min)