1AHCK00019-Engine Water Pump

Replaces

Engine Water Pump

1AHCK00019

Part Details

  • Includes: Thermostat & Housing
  • Also Used For: LS Swap

This part replaces:

  • Airtex AW5087
  • OE # 8890174390
  • OE # 12562740
  • OE # 8888942900
  • OE # 88894290
  • OE # 12456113
  • OE # 12556449
  • OE # 12458935
  • OE # 89017439
  • OE # 12571261
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Part 1AHCK00019
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DIY Solutions
Brand #: EWP00221

Frequently bought together

Description
Vehicle Fit
Warranty & Shipping
How-To & Tools
Q&A

Part Details

  • Includes:   Thermostat & Housing
  • Also Used For:   LS Swap

Item Condition: New

Attention California Customers:

WARNING: Cancer and Reproductive Harm - 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.

  1. step : Remove Intake Tube (1:10)
    • Start by using an 8 millimeter socket wrench to disconnect the negative battery cable.
    • Loosen the two clamps by the throttle body and air box.
    • Use a small flathead screwdriver to break the seal.
    • Lift the intake tube out.
  2. step : Remove fan shroud (1:50)
    • Remove the two 10 millimeter bolts with your socket wrench.
    • Unclip the small hose from the shroud.
    • Remove pins around fan shroud and gently work hose back and forth to pull fan shroud out.
  3. step : Remove fan (3:00)
    • Use a large adjustable wrench on the center nut.
    • Apply force on the wrench to break it loose.
    • Carefully pull fan out and set aside.
  4. step : Remove serpentine belt (3:30)
    • Start by double checking that your routing diagram is legible.
    • Draw out your own if it isn't to save time and confusion later.
    • Use your socket ratchet to loosen the 15 millimeter bolt located on the tensioner.
    • Turn your ratchet clockwise to release the tension and remove the belt.
  5. step : Drain radiator and disconnect hoses from water pump (4:33)
    • Release lower radiator hose and drain fluid into your drain pan.
    • Use your pliers to slowly squeeze the clamp and pull it back to drain the fluid into your catch pan.
    • Disconnect radiator hose by loosening and pulling back the clamp.
    • Use your small flathead screwdriver to gently pry up the hose and wiggle it off.
    • Make sure any water has drained out of it and set aside. Finally disconnect heater hoses.
    • Ensure that your catch pan is underneath to catch any water.
  6. step : Remove tension arm (6:40)
    • Use your wrench to remove the tension arm from the water pump.
    • Set aside.
  7. step : Remove water neck and remove pump (6:56)
    • Use your 10 millimeter socket wrench to remove the two bolts.
    • Use your torque wrench to remove the six bolts on the water pump.
    • Then using a sharp razor blade, scrape off any residual gasket material that could create a bad seal.
  8. step : Install 1A Auto water pump (8:18)
    • Put the new gasket plates on your 1A Auto water pump using the two bolts.
    • Seat the new pump and place bolts and use your torque wrench to gently snug them up.
    • Go back and torque them between 22 and 24 foot pounds.
    • Take the new O-ring that came with your 1A Auto and put it on your thermostat housing.
  9. step : Reassemble (10:10)
    • Reconnect all your hoses.
    • Put your belt tensioner back on and put your serpentine belt back on using your diagram.
    • Reassemble your fan, fan shroud, and intake pipe.
    • Finally refill with a 50/50 mixture of Dex Cool.
    • Listen for the sound of any leaks to make sure everything is connected properly.
    • Finally, reconnect the battery and start up the engine and run it for 30 seconds or so to circulate the coolant.
    • Double check your level of coolant to make sure it is at the right spot, and you are good to go.

Tools needed for replacement:

    General Tools

  • Drain Pan
  • Razor Blade / Gasket Scraper

  • Ratchets & Related

  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 10mm Socket
  • 15mm Socket
  • 8mm Socket

Need help? Ask one of our Auto Experts
Need help? Ask one of our Auto Experts
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
so if the pump starts leaking over its lifetime, is it covered?
Kc C June 12, 2016
Am not to sure if itis covered but if i told them it was leaking I am sure they . Would replace it
Ralph S June 13, 2016
Yes its covered by a limited lifetime warranty if it fails they will replace it.
Dan K June 13, 2016
They will cover it but hang on to everything thats attached to the water pump.....
Timmy B June 13, 2016
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. Please keep your invoice for proof of this warranty.
Brian F June 13, 2016
Thats what the warranty says Ive never had any issues. I purchased this pump for my truck because coolant was disappearing. After pulling the pump I noticed the gasket was gummed up and out of shape so I just replaced the gasket and have the pump set aside I case mine or one of my many friends that have Chevy trucks goes out. Havent lost any coolant since gasket replacement (40,000) mi ago. So I cant speak for this pumps reliability all I can say is if youre replacing due to coolant loss make sure its not just the gasket that could save you a 100 bill. Good luck its a pretty easy job maybe an hour but I used gasket sealer on both sides of the new gasket so I let that set up overnight before refilling coolant. Hope this helps.
Eric C June 13, 2016
whats the temp rating for the supplied thermostat?
TG T January 11, 2018
The temp rating is 186 degrees.
Alex P January 11, 2018
do you need sealer on the gaskets. Pump and thermostat?
Jim Z November 13, 2018
No I dont think I used any
J O November 13, 2018
I used a thin film of sealer on the gaskets and had to create a gasket on the pump.
Vadim L November 13, 2018
I dont think so, but we put some on just for safe measure.
TPS T November 13, 2018
I did use a sealer on the pump.
Matt Y November 13, 2018
You dont as long as all of the old gasket is removed and the surface isnt damaged (ie dont use a razor blade or sandpape to clean the surface).
Shaun B November 14, 2018
Sealer is not needed for this install.
Christa R November 14, 2018
What dimensions of the 10mm bolt for water pump?
DeAndre S March 18, 2019
Hello, if you do not mind could you rephrase the question? We just want to accurately answer your question.
Corey M March 19, 2019
What is the brand name of this water pump?
Todd G April 24, 2019
1A Autos house brand parts are manufactured by various aftermarket companies specifically for us and built to your vehicles exact OEM specifications.
Anthony C April 24, 2019

Fits the following Makes:

Year Make Model Description
2004-2005Buick Rainier Buick Rainier V8 5.3L (8th Vin Digit P) Engine Water Pump
2002-2005Cadillac Escalade Cadillac Escalade V8 5.3L (8th Vin Digit T) Engine Water Pump
2002-2003Cadillac Escalade Cadillac Escalade V8 6.0L (8th Vin Digit N) Engine Water Pump
2003Cadillac Escalade ESV Cadillac Escalade ESV V8 6.0L (8th Vin Digit N) Engine Water Pump
2002-2003Cadillac Escalade EXT Cadillac Escalade EXT V8 6.0L (8th Vin Digit N) Engine Water Pump
2002-2006Chevrolet Avalanche 1500 Chevrolet Avalanche 1500 V8 5.3L (8th Vin Digit T) Engine Water Pump
2005-2006Chevrolet Avalanche 1500 Chevrolet Avalanche 1500 V8 5.3L (8th Vin Digit Z) Engine Water Pump
2003Chevrolet Express 1500 Van Chevrolet Express 1500 Van V8 5.3L (8th Vin Digit T) Engine Water Pump
2003-2005Chevrolet Express 1500 Van Chevrolet Express 1500 Van V8 5.3L (8th Vin Digit T) Engine Water Pump
2003Chevrolet Express 2500 Van Chevrolet Express 2500 Van V8 6.0L (8th Vin Digit U) Engine Water Pump
2003Chevrolet Express 2500 Van Chevrolet Express 2500 Van V8 5.3L (8th Vin Digit T) Engine Water Pump
2003-2005Chevrolet Express 2500 Van Chevrolet Express 2500 Van V8 5.3L (8th Vin Digit T) Engine Water Pump
2003-2005Chevrolet Express 2500 Van Chevrolet Express 2500 Van V8 6.0L (8th Vin Digit U) Engine Water Pump
2003-2005Chevrolet Express 2500 Van Chevrolet Express 2500 Van V8 4.8L (8th Vin Digit V) Engine Water Pump
2003Chevrolet Express 3500 Van Chevrolet Express 3500 Van V8 6.0L (8th Vin Digit U) Engine Water Pump
1999-2003Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 5.3L (8th Vin Digit T) Engine Water Pump
1999-2003Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 4.8L (8th Vin Digit V) Engine Water Pump
2001-2003Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 6.0L (8th Vin Digit U) Engine Water Pump
2002-2003Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 5.3L (8th Vin Digit Z) Engine Water Pump
2003Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 6.0L (8th Vin Digit N) Engine Water Pump
2001-2003Chevrolet Silverado 1500 HD Chevrolet Silverado 1500 HD V8 6.0L (8th Vin Digit U) Engine Water Pump
2003Chevrolet Silverado 1500 HD Chevrolet Silverado 1500 HD V8 6.0L (8th Vin Digit N) Engine Water Pump
1999-2000Chevrolet Silverado 2500 Chevrolet Silverado 2500 V8 5.3L (8th Vin Digit T) Engine Water Pump
1999-2003Chevrolet Silverado 2500 Chevrolet Silverado 2500 V8 6.0L (8th Vin Digit U) Engine Water Pump
2001-2003Chevrolet Silverado 2500 Chevrolet Silverado 2500 V8 6.0L (8th Vin Digit U) Engine Water Pump
2001-2003Chevrolet Silverado 2500 HD Chevrolet Silverado 2500 HD V8 6.0L (8th Vin Digit U) Engine Water Pump
2001-2005Chevrolet Silverado 3500 Chevrolet Silverado 3500 V8 6.0L (8th Vin Digit U) Engine Water Pump
2000-2003Chevrolet Suburban 1500 Chevrolet Suburban 1500 V8 5.3L (8th Vin Digit T) Engine Water Pump
2002-2003Chevrolet Suburban 1500 Chevrolet Suburban 1500 V8 5.3L (8th Vin Digit Z) Engine Water Pump
2000-2003Chevrolet Suburban 2500 Chevrolet Suburban 2500 V8 6.0L (8th Vin Digit U) Engine Water Pump
2000-2003Chevrolet Tahoe Chevrolet Tahoe V8 5.3L (8th Vin Digit T) Engine Water Pump
2000-2003Chevrolet Tahoe Chevrolet Tahoe V8 4.8L (8th Vin Digit V) Engine Water Pump
2002-2003Chevrolet Tahoe Chevrolet Tahoe V8 5.3L (8th Vin Digit Z) Engine Water Pump
2003GMC Envoy XL GMC Envoy XL V8 5.3L (8th Vin Digit P) Engine Water Pump
2003GMC Savana 1500 Van GMC Savana 1500 Van V8 5.3L (8th Vin Digit T) Engine Water Pump
2003-2005GMC Savana 2500 Van GMC Savana 2500 Van V8 5.3L (8th Vin Digit T) Engine Water Pump
2003-2005GMC Savana 2500 Van GMC Savana 2500 Van V8 6.0L (8th Vin Digit U) Engine Water Pump
2003-2005GMC Savana 2500 Van GMC Savana 2500 Van V8 4.8L (8th Vin Digit V) Engine Water Pump
2003GMC Savana 3500 Van GMC Savana 3500 Van V8 6.0L (8th Vin Digit U) Engine Water Pump
1999-2003GMC Sierra 1500 GMC Sierra 1500 V8 5.3L (8th Vin Digit T) Engine Water Pump
1999-2003GMC Sierra 1500 GMC Sierra 1500 V8 4.8L (8th Vin Digit V) Engine Water Pump
2001-2003GMC Sierra 1500 GMC Sierra 1500 V8 6.0L (8th Vin Digit U) Engine Water Pump
2002-2003GMC Sierra 1500 GMC Sierra 1500 V8 5.3L (8th Vin Digit Z) Engine Water Pump
2001-2003GMC Sierra 1500 HD GMC Sierra 1500 HD V8 6.0L (8th Vin Digit U) Engine Water Pump
1999-2000GMC Sierra 2500 GMC Sierra 2500 V8 5.3L (8th Vin Digit T) Engine Water Pump
1999-2003GMC Sierra 2500 GMC Sierra 2500 V8 6.0L (8th Vin Digit U) Engine Water Pump
2001-2003GMC Sierra 2500 GMC Sierra 2500 V8 6.0L (8th Vin Digit U) Engine Water Pump
2001-2003GMC Sierra 2500 HD GMC Sierra 2500 HD V8 6.0L (8th Vin Digit U) Engine Water Pump
2001-2003GMC Sierra 3500 GMC Sierra 3500 V8 6.0L (8th Vin Digit U) Engine Water Pump
2000-2003GMC Yukon GMC Yukon V8 5.3L (8th Vin Digit T) Engine Water Pump
2001-2003GMC Yukon GMC Yukon V8 4.8L (8th Vin Digit V) Engine Water Pump
2002-2003GMC Yukon GMC Yukon V8 5.3L (8th Vin Digit Z) Engine Water Pump
2000-2003GMC Yukon XL 1500 GMC Yukon XL 1500 V8 5.3L (8th Vin Digit T) Engine Water Pump
2002-2003GMC Yukon XL 1500 GMC Yukon XL 1500 V8 5.3L (8th Vin Digit Z) Engine Water Pump
2000-2003GMC Yukon XL 2500 GMC Yukon XL 2500 V8 6.0L (8th Vin Digit U) Engine Water Pump
2003Hummer H2 Hummer H2 V8 6.0L (8th Vin Digit U) Engine Water Pump
2003-2004Isuzu Ascender Isuzu Ascender V8 5.3L (8th Vin Digit P) Engine Water Pump
2005-2006Saab 9-7X Saab 9-7X V8 5.3L (8th Vin Digit M) Engine Water Pump

Part Interchange

Brand Label Part Number
DIY Solutions EWP00221
DIY Solutions EWP00063

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.

FREE SAME DAY SHIPPING
DIY Solutions
Brand #: EWP00221
Product Reviews
4.62/ 5.0
21 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
17
2
0
2
0
water pump order
Order was handled fast and soon as the next business day it was is way to me . But on getting it parts wore missing , Got the site and e-mailed them , with in 12 hours or less I got a e-mail reply I like the fast answer when parts are missing The made GOOD on there 100% satisfaction , got replacement order with all the parts AT NO cost to me !! I e-mail them back inclosed was photos I took of there second box when I got it Informed them they needed better taping on all the folds so small parts dont fall out .
February 24, 2017
Replacement parts sold the way they should be.
Shipped quicker than expected and fit just like OEM parts.
March 6, 2017
02 Silverado Waterpump
Great product. Used the awesome instructional video too!
April 1, 2017
Ok
Bought for my 2001 Chevy Silverado 5.3 After 25k miles on it and it leaked at the upper radiator hose portion were the metal bend meets the water pump. I threw it away and bought one from the dealer because the original lasted 305k.
July 18, 2017
Perfect part..., perfect installation video...
My water pump was easy to remove and replace. The video duration was very close to my actual times
September 30, 2017
Its alright.
It was as ordered but the only problem was that the gasket pieced werent rubber so i had to buy some with rubber O rings.
October 3, 2017
Perfect fit fast delivery
No complaints. The kit came with everything I needed, and was a perfect OEM fit. Very fast shipping and great price. 1A Auto video for installation was very helpful.
November 2, 2017
2003 Chevy 5.3 Water Pump
Parts arrived very fast (as with everything I’ve ordered from 1A Auto). Exact fit. Only been on vehicle about a day or so, should be fine.
November 19, 2017
Very Good Product and Service
Pump works great, was a perfect match just as described!
December 5, 2017
Great company
Order was cheaper then in stores and order arrived ahead of schedule Thank You for your help
January 1, 2018
EXCELLENT!!
EXCELLENT PART, PRICE, AND MOST IMPORTANYLY, THE SERVICE, ABOVE AND BEYOND MY EXPECTATIONS. STAFF VERY COURTEOUS AND VERY HELPFUL. MY PART GOT LOST IN SHIPMENT, BUT NO HESITATION ON SENDING A REPLACEMENT PART AFTER MAKING ONE CALL, EVEN EXPEDITING THE SHIPMENT. WILL DEFINITELY RETURN AND ORDER FROM YOUR COMPANY AGAIN, THANK YOU VERY MUCH!!!
January 16, 2018
Water Pump
The Water Pump fit great and having a video to go by always makes this my first choice for parts!
January 25, 2018
Missing Gaskets
Got this in and it was missing the gaskets had to go locally to pick them up. Also shipping was extremely slow and would purchase from amazon prime next time
March 19, 2018
Great product
Thank you A1 Auto! The water pump for my Chevy suburban was a perfect fit and easy to install! I’m a very satisfied customer!
April 23, 2018
Water pump, tensioners, idlers & belts.
Vidio was spot on. Parts seem quality. Belts are Gates, so I know theyre quality. 3 hrs to disassemble and put in new. Highly recommend 1A. Parts arrive early (usually) and are correct.
May 19, 2018
Excellent
Everything was excellent all the way from the ordering to the online videos of the installation. This guy who never works on cars anymore was able to do all of it with ease! Great all the way around!
May 28, 2018
Great Service, Great Quality
Honestly, I was a little skeptical about 1A Auto at first. I mean, how is it possible to get quality parts or less than almost every other parts retailer on the web. Somehow, these guys have cracked the code. I recently purchased a water pump w/ thermostat housing and new belts for my 2001 Chevy Tahoe. This was my second time purchasing parts from 1A Auto for my Tahoe and just like the first time, I received quality parts to my door Within days. Best part is, I saved $300-400 by following the video 1A Auto has on how to replace a water pump in my vehicle. The only reason I did not give 5 stars is that I had to get a special tool, called a fan clutch puller wrench, to remove my fan from the water pump. In the video, the demonstrator used an adjustable wrench and did not mention the possible need for this special tool. Overall, I am very satisfied with this company and I’m sure you will be too. Good luck on your project and happy wrenching.
December 7, 2018
Quality product, help how to video
Order this product it was exactly what fits my vehicle thanks to 1a auto fitment chart. I installed it my with no problem at all thanks to 1a auto water pump installment video. Everything came with product I needed, I saved a lot of money using 1a auto services not the first time either I use there quality products and videos for most of my vehicle needs. Fair prices, quality product, and very helpful how to video you can’t beat it!!! 1a auto is my go to service thanks a lot!!!
March 23, 2019
Great people to order parts
Parts Quality was a1 easy to order everything was perfect will order from here
July 3, 2019
Fit Perfect.
This water pump went on a LQ9 Cadillac motor installed in my 1965 Shortbed 4x4 Chevy. Glad to use 1A Auto. Thanks.
February 16, 2020
Perfect fit!!
Fit perfectly for my 5.3 v8 gmc sierra. As always you people are great.
May 6, 2020
Customer service

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