1AFPU01097-Chevrolet GMC Fuel Pump & Sending Unit Assembly


Chevrolet GMC Fuel Pump & Sending Unit Assembly TRQ

Fuel Pump & Sending Unit
$ 75.95
14% OFF
14% OFF
In Stock
Part 1AFPU01097

Orders must be placed by 2pm ET
Part 1AFPU01097
In Stock
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Estimated Arrival Cost

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

Frequently bought together


Vehicle Fit

Warranty & Shipping
How-To & Tools

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 & 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 www.P65Warnings.ca.gov.

Lifetime Warranty

This item is backed by our limited lifetime warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.

Returns: Parts with electrical components cannot be returned once installed.

FREE Shipping is standard on Orders shipped to the lower 48 States (Contiguous United States). Standard shipping charges apply to Hawaii, Alaska and US Territories.  Shipping is not available to Canada.

Expedited is available on checkout to the United States, excluding Alaska, Hawaii and US Territories as well as P.O. Boxes and APO/FPO/DPO addresses.  Final shipping costs are available at checkout.

Electrical Connector Instructions

How to Replace Fuel Pump Sending Unit Module 00-03 Chevy Malibu

Created on: 2011-10-03

Watch this video to learn how fix your fuel system. The experts at 1A Auto show you how to replace the fuel pump and sending unit on your 99-03 Chevy Malibu.

  1. step 1 : Depressurize fuel system
    • 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 2 : Disconnect battery
    • Use an 8mm wrench to disconnect the negative battery cable
  3. step 3 : Disconnect and remove fuel tank
    • 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 4 : Remove assembly
    • 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 5 : Install new fuel pump
    • 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 6 : Reinstall the fuel tank
    • 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 7 : Finish up
    • 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



    Drain Pan

    Floor Jack

  • Materials, Fluids, and Supplies

    Rust Penetrant

  • Ratchets & Related

    Socket Extensions


  • Screwdrivers & Related

    Flat Blade Screwdriver

    Phillips Head Screwdriver

  • Sockets - Metric

    13mm Socket

    7mm Socket

    10mm Socket

  • Wrenches - Metric

    8mm Wrench

Installation Video
Watch video

Fits these Makes

Year Make Model Description
1999-2003Chevrolet Silverado 1500 Chevrolet Silverado 1500 with Harness Code TCF Fuel Pump & Sending Unit Assembly
2001-2003Chevrolet Silverado 1500 HD Chevrolet Silverado 1500 HD with Harness Code TCF Fuel Pump & Sending Unit Assembly
1999-2003Chevrolet Silverado 2500 Chevrolet Silverado 2500 with Harness Code TCF Fuel Pump & Sending Unit Assembly
2001-2003Chevrolet Silverado 2500 HD Chevrolet Silverado 2500 HD with Harness Code TCF Fuel Pump & Sending Unit Assembly
2001-2003Chevrolet Silverado 3500 Chevrolet Silverado 3500 with Harness Code TCF Fuel Pump & Sending Unit Assembly
1999-2003GMC Sierra 1500 GMC Sierra 1500 with Harness Code TCF Fuel Pump & Sending Unit Assembly
2001-2003GMC Sierra 1500 HD GMC Sierra 1500 HD with Harness Code TCF Fuel Pump & Sending Unit Assembly
1999-2003GMC Sierra 2500 GMC Sierra 2500 with Harness Code TCF Fuel Pump & Sending Unit Assembly
2001-2003GMC Sierra 2500 HD GMC Sierra 2500 HD with Harness Code TCF Fuel Pump & Sending Unit Assembly
2001-2003GMC Sierra 3500 GMC Sierra 3500 with Harness Code TCF Fuel Pump & Sending Unit Assembly

Part Interchange

Brand Label Part Number
Airtex E3500M
Carter P74835M
Spectra Premium SP6086M
Spectra Premium Industries SP6086M

This item may be interchangeable with parts from other brands with the above part numbers. This information is provided only for reference and does not guarantee that the item you are purchasing is identical to parts with part numbers from the brands listed above. To confirm that this item fits your vehicle, use the above "Check Vehicle Fit" option.

In Stock
Part 1AFPU01097
Product Reviews
4.79/ 5.0 58
October 21, 2015
product was easy to install. customer service was fantastic. Would recomend this fuel pump to a friend.
Works as promised
August 3, 2016
I have heard many caution against aftermarket parts; and often they are correct. The exception though is with 1aauto; they truly stand behind their parts and so even if a problem occurs they replace based on a lifetime warranty; their warranty process is much easier than GM and so is in my opionion a much better part to purchase. I did have one of these fail on me after a year but received a replacement no questions asked. Great customer service! Would definately reccomend over your local garage and local dealership.
Good Part
February 6, 2017
Suited it's purpose and the price was much better than the auto parts stores. Thank you.
February 8, 2017
The fuel pump went right in and performed as advertised. I am very satisfied with it.
silverado fuel pump
February 24, 2017
Part worked perfectly and the price was great. My only minor complaint is the cost of expedited shipping.
100% satisfied with the service and shopping experience with 1AAUTO.
March 11, 2017
I could not be more satisfied with a purchase. I received it promptly and it was delivered right to my door. I installed it myself saving several hundred dollars. The installation was an easy project with the instructions provided. After a gas pressure test determined it needed a fuel pump an the local cost was 550.00 i decided i could change it myself. The test was 20 bucks an the pump delivered was less than 70 saving over 450.00. I think my truck runs better now than it ever has. If your into saving money, 1AAuto is the place. Thank you 1AAuto. Neldon Hester
Works great
March 20, 2017
Received on time, works like a charm at 1/4 of the cost, been running it for over a month now with new pump and no issues. Easy install and durable..
March 27, 2017
Great product with easy instructions and good ptice. Recommended to anyone in need of a fuel pump
July 16, 2017
Very satisfied after several phone calls to get all parts that was missing this was customer truck and 9 days to finally get all parts should have been double checked for all parts
Looks and works well
July 27, 2017
So far so good !! Speedy delivery too. Ty guys. Wouid definitely recommend to others
fuel pump
July 31, 2017
Nice fuel pump just as good as o oem for a fraction of the price
The part I ordered from my 2000 Chevrolet the part was great United Democratic party I will order from this company again
August 8, 2017
Write your review here. It must be at least 50 characters long. Consider whether you would recommend this product and what you like or my about it.
August 9, 2017
Awesome service speedy delivery and great parts have bought brakes and fuel pump now from you
Quick fix
August 9, 2017
Slaped it on and worked fine, just remeber to take old lock clips off the old pump that connects the hoses. Other than that it was easy and watch the wiring video to help you.
Fuel pump replacement
September 12, 2017
After researching, I found a fuel pump at a great price at A1Auto. Replaced the old one with the new and had my truck running in no time.
Fuel pump
October 2, 2017
The shipping was fast! Product was just as described the fuel pump works great.
Fuel Pump Assembly
October 4, 2017
I was pleased with the price of the fuel pump, and the assembly works just fine. Thanks for getting it to me so fast. The hardest part of changing out the fuel pump was taking the truck bed off. Afterwards, installing the pump took ten minutes.
Very satisfied.
December 9, 2017
I would recommend this part to others. I is well worth the wait for shipping for the money you save over auto part stores. I will order from you guys again.
Fuel pump is great.
December 14, 2017
The fuel pump on my 02 Silverado went out, and I almost had a stroke when I found out the cost at our local parts house for a new one. I decided to look online for a better price and immediately found 1a auto. They had a new one at just a fraction of the local cost. I paid extra to have it shipped over night. This was on a Thursday, and I needed my truck asap. They were late getting it to UPS, so I didn't receive the fuel pump until Monday, but they refunded the shipping cost. The pump fit perfectly and works great, so I'm a happy camper even tho I was without my truck longer than expected. I bought the pump at one fifth the price of our local parts dealer. That's a big difference that was worth the wait. Thanks
Fuel pump swap
January 15, 2018
Back in business work great looking forward to using u for out her parts
It's nice to have a working fuel gauge.
Steve h
March 3, 2018
First I was having problems with the HVAC ,and then the fuel gauge wasn't working correctly, and the fuel pump was quickly going bad. New fuel pump fixed all of the fuel tank problems.
March 27, 2018
awesome product
April 2, 2018
product was simple to install just as instructions shown. items was just as pictured and great quality product.
Fuel pump 2003 slverado
May 6, 2018
After watching repair video on A1 Auto parts l went to work and changed pump and button things up and hit the key all good thanks A1 Auto parts easy order and tracking I will order more parts soon thanks again
Fuel pump...
May 22, 2018
Product fit great, and working fine. I love the cost!
fuel pump and sending unit for in tank
July 15, 2018
unit was perfect fit and worked flawlessly. Cost was right on target to make this customer very happy and the sale one of my best.
Fuel pump
July 21, 2018
It fit like it was supposed to and has been working great, free shipping and timely delivery. Thank you
Excellent product
November 14, 2018
Perfect fit and saved me about 200 dollars over buying one at the parts store. Fast shipping as usual with my 1A orders. Everything working great.
November 19, 2018
Exact fit, quick shipping, great price, worked as it should
Start to Finish
November 25, 2018
The help they provided to me on how to get the info to get the right part and how to install tips from the video are with out a doubt the best I have ever seen or used. I was a line Mechanic at a Pontiac Dealer and know how to wrench. The how to tips and video that shows time saving tips and inside Information as to bolts location and disassembly tricks of the trade saved me a ton of time and MONEY. I am a semi computer dummy but one phone call and it was done. Right part, Right video, And most important RIGHT PRICE. Thank you 1A Auto John DuVall P.S. You Might give other user advice as to tank drainage as it always a full tank when the damm thing goes out
Exact part needed
December 30, 2018
Part arrived quickly and had everything needed to fix my truck. Part worked well.
Exact Fit, Working great!
January 2, 2019
This pump was an exact fit for my 2001 Chevy Silverado 1500. Splicing in the new connector was a breeze. Truck is running great again, and I have a fuel gage again. Price was good, shipping was super fast.
January 20, 2019
Hello A1auto I want to thank you for getting my part on time to re pair my mom truck. I give a 5 star rating for good service and on time delivery. I look forward on doing business with yall from here now on .Thank u so much!!
When times are tufff 1aauto gets you through the ruts
February 7, 2019
Awesome product with great resources for the movie home Machanic. I got the product in just a few days of ordering it watched the how to video and with a little hard work my truck was up and running again
February 9, 2019
I finally found a fuel pump that is great quality and the price is great. I always thought fuel pumps were way over priced. This is the second one I bought for two separate trucks. Bother are working flawlessly. This fit a 2003 Silverado and fixed the failing fuel gage.
01 Chevy fuel pump replacement
February 18, 2019
This part came quickly and in great working order. The 1aauto iTunes U video made for an easy replacement. the web site is easy to navigate around and find the right part to fit your vehicle. Sinc
Chevy Fuel Pump/Sender
March 7, 2019
I called in order, got great help on the phone. I got it fast, part fit great. Price was way cheaper than others.
My first time ordering from 1a auto
July 13, 2019
This was my first order. It was a exact fit free shipping and the price was very reasonable. I would highly recommend 1a auto to everyone
Good job
July 27, 2019
I recommend this product to all my friends
August 18, 2019
Great products at awesome prices fast shipping and good customer service!
September 16, 2019
Everything worked perfectly, great fuel pump!
1AFPU01097-Chevy GMC Fuel Pump & Sending Unit Module
November 10, 2019
Perfect fit, and has lasted longer than the previous fuel pump assembly that I installed.
Great deal
January 4, 2020
Worked great came in a timely manner and well packaged month later and it's still working great no issues with truck after installed.
January 12, 2020
The right part this first time with a guarantee to fit my truck...Thanks, guys
Fuel pump
January 15, 2020
Shipped on time. Good product. Fit perfectly. Thanks.
Great Company
February 11, 2020
I like this company, they know their parts and customer service a plus. I also recommend this company!!!
Excellent product
March 14, 2020
Loved this
So Far So Good
March 19, 2020
I've only had the fuel pump in for about 3 weeks now and it's working like a champ. We shall see about the longevity of it but for now it's working fine.
Recommend for a 2003 GMC Sierra 1500
March 27, 2020
My gas gauge was messed up and I knew right away I needed a new gas pump. My mechanic install it less than 15 mins and ever since then it’s been working great! buy it guys for you takuache friends haha.
Great parts for a great price!
April 5, 2020
Pump was the exact fit for my mother in law's truck. Asked for prices around at auto parts stores and nothing came close to 1AAuto. I was sold once I saw that the fuel pump had a lifetime warranty. Pumps at o'Reilly's and Autozone cost upwards of $180 and without warranties. They ship fast so the wait wasn't bad either. Super satisfied.
Perfect fit.
June 23, 2020
Got the part quickly and installed it within 15 minutes once the bed was off. Fit perfect and so far has worked flawlessly.
Fuel pump and sending unit
September 8, 2020
Perfect fit and incredible price!
Fuel pump
September 18, 2020
I would definitely recommend it. When I purchased it I thought it was the wrong one but it was the right pet. They don’t make the original style part that my truck had(03 Chevy Silverado 1500) but the pump works, wired it up fine and everything is good!
2003 chevy fuel pump and filter
October 8, 2020
I choose to buy my parts from 1Aauto. They are the best online parts store i have found. Always FREE shipping and that's a must. Parts are great quality and arrive in a timely manner. Installed the pump and filter, my truck is running like a charm. 326 thousand miles and counting. Thank you 1Aauto!!?
January 1, 2021
Well what can i say about this fuel pump but how easy it was install and it was just what i needed
January 20, 2021
I would definitely recommend this. Easy installment and still running terrific!
Great bang for your buck
February 22, 2021
had a 2001 GMC Sierra gauge fuel gauge kept saying full empty full empty so I had to be the pump and sending unit, replace the pump / sending unit and everything is fantastic.
Good price
March 24, 2021
Does its job, just what I needed. Perfect fit and easy to install one I got the truck bed off
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
who is the manufacturer?
February 27, 2016
We have a few different aftermarket companies build these parts specifically for us, as our 1A Auto house brand. They are manufactured to the same OEM specifications as the original part that came with your vehicle and are covered by a lifetime warranty. If you have any further questions, please don't hesitate to ask.
February 29, 2016
Good quality
March 6, 2020
January 2, 2021
How can I know which fuel pump wiring harness code I have if it doesn't have a tag or label?
January 31, 2017
In the glovebox on your vehicle there will be a large list of letter and number codes. You would want to look for either K53 which will have the two connectors on the top of your sending unit and labeled as TCF, or EVA which will have a one connector set up and be labeled as TCU.
February 3, 2017
Actually, you would install the new harness to the truck end, not on the pump
February 4, 2017
Will this fit 4.3L 00 silverado?
January 31, 2018
February 3, 2018
February 3, 2018
March 6, 2020
Will this fit a 6.6l engine?
November 26, 2018
This part does not specify certain engine sizes. We can confirm fit with your year, make and model.
November 27, 2018
I think I may have ordered the incorrect fuel pump for my 2002 GMC Sierra 1500 5.3 L. It does have the fuel tank pressure sensor on top and a connector for that as well as the fuel pump connector. Is this the correct part?
February 27, 2020
Hey Anthony, This fuel pump is correct for your vehicle. If you have any questions feel free to contact us at 888-844-3393. Thank you, Corey
February 27, 2020
How do I find out what code my fuel pump is, TCF, TRQ, etc.?
July 15, 2020
Thank you for the inquiry. TRQ is the brand name of this pump. TCF is the harness code. You can find this on a tag on your OE harness or call your local dealer with your VIN number.
July 16, 2020
Customer service


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