SKU: 43154425927

1899 2001-2007 496 8.1L Chevy GMC water pump

Sale price$163.75 Regular price$181.95
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Description

1899 2001-2007 496 8.1L Chevy GMC water pumpIf you're hauling weight and there is limited airflow your big 496 8. 1L might just start running hot. Flowkooler has a solution. FlowKooler designed a high flow water pump for the 496ci block with a CNC machined billet impeller. It has an increased vane count and a reduced impeller vane clearance to the volute. It achieves greater flow rates, higher head pressure and a more efficient flow. The impeller color is due to Type II Class II military grade

If you're hauling weight and there is limited airflow your big 496/8.1L might just start running hot.  Flowkooler has a solution.  FlowKooler designed a high flow water pump for the 496ci block with a CNC machined billet impeller.  It has an increased vane count and a reduced impeller vane clearance to the volute.  It achieves greater flow rates, higher head pressure and a more efficient flow. The impeller color is due to Type II Class II military grade surface coating which protects against corrosive fluids. 

FlowKooler introduced the first hi flow pumps and continues to improve impeller design. Why is increased flow so important to cooling a hot BBC engine? Because it has been proven time and time again that reducing the cycle time between the heat source and the heat sink creates more opportunities to shed heat and drop engine temperatures.  This is particularly true when your truck is hauling weight under a load and there is limited airflow.

From 0-3,300 RPM…Nothing Beats a FlowKooler!

General Specifications:
Type of Material of Pump Body Cast Iron
Number of Blades on Impeller 16 CNC Aluminum
Direction of Rotation CW or CCW
Fan Hub Working Height 6"
Inlet Outside Diameter 1 3/4"
Hose Connections 1st 2nd
Gender M NA
Diameter 1" NA
Threaded No NA
Other Special Features:
  • CNC Aluminum impeller 16 blade swept vane 
  • Protected with a Type II Class II Military grade surface coating
  • Alternative Part Numbers 12558862, 12573929, 88893906, 89017693, 89017771
Parts Contained in Box:
Mounting Gasket, Installation Sheet, FlowKooler Decal
Make Model Year Block CID Liters
chevrolet avalanche 2500 06-02 V8 496 8.1L
chevrolet silverado 2500 07-01 V8 496 8.1L
chevrolet silverado 3500 06-01 V8 496 8.1L
chevrolet silverado 3500 Classic 2007 V8 496 8.1L
chevrolet suburban 1500/2500 06-01 V8 496 8.1L
gmc sierra 2500 hd 06-01 V8 496 8.1L
gmc sierra 2500 hd Classic 2007 V8 496 8.1L
gmc sierra 3500 07-01 V8 496 8.1L
gmc sierra 3500 Classic 07-01 V8 496 8.1L
gmc yukon xl 2500 06-01 V8 496 8.1L

 

An 8.1L is commonly used in a mercuiser. A customer told us he had a problem installing his but we could not understand what his issue was through his anger. Please do not purchase this pump for a boat; we don't have it in us anymore.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 43154425927

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4.3 ★★★★★
Based on 27 reviews
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A
Verified Purchase
Adrian Padilla
Whiting, US
★★★★★ 4
Not OEM material, doesn’t slide as easily. Feels like it will last longer.
Color: Grey, Color: Grey
Thought it was going to be the same quality as OEM, might last longer but definitely has a different texture. Fits well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
S
Verified Purchase
skrause
Waukegan, US
★★★★★ 5
Very happy
Color: Grey, Color: Grey
This is a 3d printed part. It fits great, looks excellent, works fantastic. I bought the grey version. Work the part in carefully, take your time. The seller’s video in the description is very helpful! Great alternative to dropping $100 on a replacement. Excellent value, fast response and shipping..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 6, 2024
W
Verified Purchase
Works for ‘01 E46 BMW M3!
Natrona Heights, US
★★★★★ 5
Works for E46 M3
Color: Black
Great customer support, fits like it should, is a nice detail that you’ll notice if yours is broken. Looks like OE. This is my first 3D printed part, I hope it’ll last another 20 years. Has lasted almost a year so far!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 18, 2024
B
Verified Purchase
Blaise L.
Battle Creek, US
★★★★★ 3
Off - color
Color: Black, Color: Black
Flimsy, pretty obviously 3D printed. It's noticeably blue in color, but no one in the front seats will notice. This is good as an aesthetic bandage fix, but I'll go back to sourcing an OEM piece.
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Reviewed in the United States on September 3, 2024
T
Verified Purchase
TheToaster
Dallas, US
★★★★★ 1
Poor quality.
Color: Grey
This is a waste of money. No communication from seller. It took super long to receive it and when I got it , it was a big disappointment. This is a junk.
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Reviewed in the United States on April 18, 2026

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