Electric Fuel Pump and Sending Unit Assembly - 1AFPU00297

Warranty & Shipping
How-To & Tools
Product Reviews
Vehicle Fit

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


  • Mounts in fuel tank
  • Complete module assembly
  • Replaces dealer part number: 19153713, 19179477
  • Assembly includes the following parts:
    • Electric Fuel Pump
    • Plastic module
    • Fuel sending unit
    • Float
    • Strainer
  • Number of outlets: 2
  • Rheostat range: (40-250 Ohms)
  • Direct replacement
  • Correct electrical connections
  • Built to strict quality control standards
  • Correct for models with Harness code TDB
  • Correct for vehicles without Robust Fuel System (RPO code K53)

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.


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

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

4.93/ 5.0
15 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
New fuel pump mod
The fuel pump was great it solved my problems now my truck runs great no fall on its face
January 27, 2017
Fuel Pump
No issues at all with fuel pump, delivered on time, excellent price.
February 26, 2017
Service, knowledge and efficient professionalism!
1A Auto Parts is great. The videos are clear, instructional and easy to follow. Even if I dont do the work they inform me on what to look for when I take my truck to the shop. I always get the right parts and on schedule. The prices cant be beat!
March 24, 2017
In my haste I initially ordered the wrong pump, but thanks to the great service and associates at 1aauto I was able to finally get the correct pump. Installed it and wired the new harness connector and my Denali started right up. Havent had any issues. Price was great compared to other options out there, thats why I always come here first for all my parts needs.
May 26, 2017
GMC Fuel Pump.
My fuel pump is working excellent. Thank you , this Company is the best on the planet. The price is unheard of and the products are Top Shelf . I know where to get all the parts I need from now on. Ossie
July 3, 2017
01 GMC Yukon Fuel Pump
Am pleased with to purchase price and delivery of my 1a auto gm fuel pump! It works great and I can also see a big difference in the drive of my vehicle. Thanks 1a auto!
July 9, 2017
Fuel pump-review
Working fine thank you ... and price was great will use your products again when needed
July 23, 2017
Better than expected
The fuel pump came very well packaged in nice shape the rubber o-ring it came with seems to be a little big but made for a tight fit all in all great product
September 13, 2017
Great parts
The part is great works excellent and looks like the Oem part. And best of all the prices are great very satisfied with the part will highly recommend to everyone to order parts from 1AAuto
November 26, 2017
Product works perfect , the crew at 1Aauto made sure it was the correct fuel pump for my vehicle this guys go out of their way, awesome prices awesome service fast shipping, got my vehicle running with in 1 day!! Thanks 1Aauto crew you rock!!
June 18, 2018
worked great
fuel pump works awesome. but the fuel pressure sensor sent with the pump was broke. so a new one had to be purchased locally. but works good otherwise. they really should send new fuel line clips with the pump though
July 13, 2018
I was having trouble with my truck fuel pump was bad and I order it through 1A Auto. I got it within 3 business days.. Got it replace it with no trouble. My truck was back in the road thanks to 1A Auto... I really recomend 1A Auto real profecional and fast with their orders.
September 9, 2018
instructions were clear for installing, 1A auto also had an easy how to video on how to install. high quality fuel pump, would recommend!
September 19, 2018
The fuel pump showed up quick. Easy installation. Works very well. I recommend using A1 Auto.
October 11, 2018
Fuel pumps
First of all theres was no delay in receiving my fuel pump on time..I strongly recommend a fuel pump from you guys and advice anyone to order from your website thats how I was introduced to A1 and as far as pinching a few wires together and everything else being on point for my fuel pump like I said strong recommendations for new and even old customers
October 17, 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 the right fuel pump for a 2001 chevy tahoe v8 5.3 ?
Joshua S May 23, 2017
I put this in a 2002 Tahoe with 5.3L. Fit good and worked properly
Rick C May 23, 2017
Unsure my Tahoe is a 2000. I can tell you it has been on for two years without a problem.
Jamie P May 23, 2017
it worked great in my 2001 yukon
H E July 13, 2018
Will this fit my 2002 yukon xl 1500 slt?
Jessica W September 15, 2017
This is specific to the non XL model Yukons. Please view our other listings for the appropriate replacement.
Alex P September 18, 2017
Year Make Model Description
2002-2003Cadillac Escalade Cadillac Escalade Electric Fuel Pump and Sending Unit Assembly for Models with V8 6.0L & Harness Code TDB
2002-2003Cadillac Escalade Cadillac Escalade Electric Fuel Pump and Sending Unit Assembly for Models with V8 5.3L (8th Vin Digit T) & Harness Code TDB
2000-2003Chevy Tahoe Chevy Tahoe Electric Fuel Pump and Sending Unit Assembly for Models with V8 4.8L & Harness Code TDB
2000-2003Chevy Tahoe Chevy Tahoe Electric Fuel Pump and Sending Unit Assembly for Models with V8 5.3L (8th Vin Digit T) & Harness Code TDB
2000-2003GMC Yukon GMC Yukon Electric Fuel Pump and Sending Unit Assembly for Models with V8 4.8L & Harness Code TDB
2000-2003GMC Yukon GMC Yukon Electric Fuel Pump and Sending Unit Assembly for Models with V8 5.3L (8th Vin Digit T) & Harness Code TDB
2001-2003GMC Yukon GMC Yukon Denali Electric Fuel Pump and Sending Unit Assembly with V8 6.0L & Harness Code TDB
Part #: 1AFPU00297

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)