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

Part Details

  • Includes:   Thermostat & Housing

Specifications:

  • Brand New Water Pump
    • Not remanufactured or rebuilt
  • No core charge
  • Includes 2.02" Diameter Thermostat
  • Gaskets included as shown
  • Built to strict quality control standards

 

Item Condition: New

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

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 : 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

4.56/ 5.0
16 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
13
1
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
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
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?
TOM N January 11, 2018
The temp rating is 186 degrees.
Alex P January 11, 2018
Year Make Model Description
2004-2005Buick Rainier Buick Rainier Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit P)
2002-2005Cadillac Escalade Cadillac Escalade Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
2002-2003Cadillac Escalade Cadillac Escalade Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit N)
2003Cadillac Escalade ESV Cadillac Escalade ESV Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit N)
2002-2003Cadillac Escalade EXT Cadillac Escalade EXT Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit N)
2002-2006Chevy Avalanche 1500 Chevy Avalanche 1500 Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
2005-2006Chevy Avalanche 1500 Chevy Avalanche 1500 Engine Water Pump V8 5.3L (8th Vin Digit Z) with Thermostat & Housing
2003Chevy Express 1500 Van Chevy Express 1500 Van Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
2003-2005Chevy Express 1500 Van Chevy Express 1500 Van Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
2003Chevy Express 2500 Van Chevy Express 2500 Van Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2003Chevy Express 2500 Van Chevy Express 2500 Van Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
2003-2005Chevy Express 2500 Van Chevy Express 2500 Van Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
2003-2005Chevy Express 2500 Van Chevy Express 2500 Van Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2003-2005Chevy Express 2500 Van Chevy Express 2500 Van Engine Water Pump with Thermostat & Housing V8 4.8L (8th Vin Digit V)
2003Chevy Express 3500 Van Chevy Express 3500 Van Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
1999-2003Chevy Silverado 1500 Chevy Silverado 1500 Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
1999-2003Chevy Silverado 1500 Chevy Silverado 1500 Engine Water Pump with Thermostat & Housing V8 4.8L (8th Vin Digit V)
2001-2003Chevy Silverado 1500 Chevy Silverado 1500 Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2002-2003Chevy Silverado 1500 Chevy Silverado 1500 Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit Z)
2003Chevy Silverado 1500 Chevy Silverado 1500 Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit N)
2001-2003Chevy Silverado 1500 HD Chevy Silverado 1500 HD Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2003Chevy Silverado 1500 HD Chevy Silverado 1500 HD Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit N)
1999-2000Chevy Silverado 2500 Chevy Silverado 2500 Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
1999-2003Chevy Silverado 2500 Chevy Silverado 2500 Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2001-2003Chevy Silverado 2500 Chevy Silverado 2500 Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2001-2003Chevy Silverado 2500 HD Chevy Silverado 2500 HD Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2001-2003Chevy Silverado 2500 HD Chevy Silverado 2500 HD Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2001-2005Chevy Silverado 3500 Chevy Silverado 3500 Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2000-2003Chevy Suburban 1500 Chevy Suburban 1500 Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
2002-2003Chevy Suburban 1500 Chevy Suburban 1500 Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit Z)
2000-2003Chevy Suburban 2500 Chevy Suburban 2500 Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2000-2003Chevy Tahoe Chevy Tahoe Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
2000-2003Chevy Tahoe Chevy Tahoe Engine Water Pump with Thermostat & Housing V8 4.8L (8th Vin Digit V)
2002-2003Chevy Tahoe Chevy Tahoe Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit Z)
2003GMC Envoy XL GMC Envoy XL Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit P)
2003GMC Savana 1500 Van GMC Savana 1500 Van Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
2003-2005GMC Savana 2500 Van GMC Savana 2500 Van Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
2003-2005GMC Savana 2500 Van GMC Savana 2500 Van Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2003-2005GMC Savana 2500 Van GMC Savana 2500 Van Engine Water Pump with Thermostat & Housing V8 4.8L (8th Vin Digit V)
2003GMC Savana 3500 Van GMC Savana 3500 Van Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
1999-2003GMC Sierra 1500 GMC Sierra 1500 Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
1999-2003GMC Sierra 1500 GMC Sierra 1500 Engine Water Pump with Thermostat & Housing V8 4.8L (8th Vin Digit V)
2001-2003GMC Sierra 1500 GMC Sierra 1500 Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2002-2003GMC Sierra 1500 GMC Sierra 1500 Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit Z)
2001-2003GMC Sierra 1500 HD GMC Sierra 1500 HD Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
1999-2000GMC Sierra 2500 GMC Sierra 2500 Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
1999-2003GMC Sierra 2500 GMC Sierra 2500 Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2001-2003GMC Sierra 2500 GMC Sierra 2500 Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2001-2003GMC Sierra 2500 HD GMC Sierra 2500 HD Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2001-2003GMC Sierra 2500 HD GMC Sierra 2500 HD Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2001-2003GMC Sierra 3500 GMC Sierra 3500 Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2000-2003GMC Yukon GMC Yukon Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
2001-2003GMC Yukon GMC Yukon Engine Water Pump with Thermostat & Housing V8 4.8L (8th Vin Digit V)
2002-2003GMC Yukon GMC Yukon Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit Z)
2000-2003GMC Yukon XL 1500 GMC Yukon XL 1500 Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit T)
2002-2003GMC Yukon XL 1500 GMC Yukon XL 1500 Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit Z)
2000-2003GMC Yukon XL 2500 GMC Yukon XL 2500 Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2003Hummer H2 Hummer H2 Engine Water Pump with Thermostat & Housing V8 6.0L (8th Vin Digit U)
2003-2004Isuzu Ascender Isuzu Ascender Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit P)
2005-2006Saab 9-7X Saab 9-7X Engine Water Pump with Thermostat & Housing V8 5.3L (8th Vin Digit M)
Only 4 left in stock
Part #: 1AHCK00019


Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

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How-to Video:

(12:46 min)