SKU: 94856677895

1669 1996-2006 LS Gen III/IV water pump

Sale price$112.05 Regular price$124.50
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Description

1669 1996-2006 LS Gen III/IV water pumpFlowkooler High Flow pump for the LS motor has a CNC machined billet impellers are designed with an increased vane count and a reduced plate to impeller clearance to achieve greater flow rates, higher head pressure and a more efficient flow than other OEM water pumps. The color is due to Type II Class II military grade anodize surface coating which protects against corrosive fluids. We source casting from different foundries. One pump has a machined

Flowkooler High Flow pump for the LS motor has a CNC machined billet impellers are designed with an increased vane count and a reduced plate-to-impeller clearance to achieve greater flow rates, higher head pressure and a more efficient flow than other OEM water pumps. The color is due to Type II Class II military grade anodize surface coating which protects against corrosive fluids. 

We source casting from different foundries.  One pump has a machined billet plug with an interference fit to keep it locked in and the other has a star shaped pattern with 5 bolts and an o-ring.

FlowKooler introduced the first hi flow pumps and continues to improve impeller design. Why is increased flow so important to cooling a hot 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.

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

General Specifications:
Type of Material of Pump Body Aluminum
Number of Blades on Impeller 16 CNC Aluminum
Direction of Rotation CCW
Shaft Diameter 1-1/8"
Inlet Outside Diameter 15/16"
Hose Connections: 1st 2nd
Gender M M
Diameter 5/8"
3/4"
Threaded No
No
Other Special Features:
  • CNC Machined billet aluminum impeller with 16 vanes
  • Machined insert for higher system pressure with matching volute angle
  • Type II Military grade surface coated impeller
  • Fits 5.7L Gen III/IV LS-based engines and LS swaps
  • Alternative Part Numbers 12456113, 12458935, 12556449, 12604746, 12681184, 19195104, 19256261, 31028406, 8888942900, 88894290, 8890174390, 8890181660, 88926296, 89017315, 89017439, 890174390, 89018040, 89018166, 19195104
Parts Contained in Box:
Mounting Gaskets,Installation Sheet, FlowKooler Decal
Make Model Year Block CID Liters
BUICK RAINIER 04-06 V8 323 5.3L
CADILLAC ESCALADE 02-06 V8 325 5.3L
CADILLAC ESCALADE 02-06 V8 364 6.0L
CADILLAC ESCALADE ESV 03-06 V8 364 6.0L
CADILLAC ESCALADE EXT 02-06 V8 364 6.0L
CHEVROLET AVALANCHE 1500 02-04 V8 323 5.3L
CHEVROLET AVALANCHE 1500 05-06 V8 325 5.3L
CHEVROLET EXPRESS 1500 03-05 V8 323 5.3L
CHEVROLET EXPRESS 1500 2006 V8 325 5.3L
CHEVROLET EXPRESS 2500 03-06 V8 294 4.8L
CHEVROLET EXPRESS 2500 03-05 V8 323 5.3L
CHEVROLET EXPRESS 2500 03-06 V8 364 6.0L
CHEVROLET EXPRESS 3500 06-07 V8 294 4.8L
CHEVROLET EXPRESS 3500 03-07 V8 364 6.0L
CHEVROLET SILVERADO 1500 99-06 V8 294 4.8L
CHEVROLET SILVERADO 1500 99-05 V8 323 5.3L
CHEVROLET SILVERADO 1500 2006 V8 325 5.3L
CHEVROLET SILVERADO 1500 99-06 V8 364 6.0L
CHEVROLET SILVERADO 1500 HD 01-06 V8 364 6.0L
CHEVROLET SILVERADO 2500 99-00 V8 323 5.3L
CHEVROLET SILVERADO 2500 99-06 V8 364 6.0L
CHEVROLET SILVERADO 2500 HD 01-06 V8 364 6.0L
CHEVROLET SILVERADO 3500 01-06 V8 364 6.0L
CHEVROLET SSR 03-04 V8 325 5.3L
CHEVROLET SSR 05-06 V8 364 6.0L
CHEVROLET SUBURBAN 1500 00-05 V8 323 5.3L
CHEVROLET SUBURBAN 1500 2006 V8 325 5.3L
CHEVROLET SUBURBAN 1500 00-06 V8 364 6.0L
CHEVROLET SUBURBAN 2500 00-05 V8 323 5.3L
CHEVROLET SUBURBAN 2500 2006 V8 325 5.3L
CHEVROLET SUBURBAN 2500 00-06 V8 364 6.0L
CHEVROLET TAHOE 00-06 V8 294 4.8L
CHEVROLET TAHOE 00-05 V8 323 5.3L
CHEVROLET TAHOE 2006 V8 325 5.3L
CHEVROLET TRAILBLAZER 04-06 V8 323 5.3L
CHEVROLET TRAILBLAZER 2003 V8 325 5.3L
CHEVROLET TRAILBLAZER 2006 V8 364 6.0L
GMC CANYON 03-06 V8 323 5.3L
GMC ENVOY 03-06 V8 323 5.3L
GMC ENVOY XL 03-06 V8 323 5.3L
GMC ENVOY XUV 04-05 V8 323 5.3L
GMC SAVANA 1500 03-06 V8 323 5.3L
GMC SAVANA 2500 03-06 V8 294 4.8L
GMC SAVANA 2500 03-05 V8 323 5.3L
GMC SAVANA 2500 03-06 V8 364 6.0L
GMC SAVANA 3500 04-06 V8 294 4.8L
GMC SAVANA 3500 03-06 V8 364 6.0L
GMC SIERRA 1500 99-06 V8 294 4.8L
GMC SIERRA 1500 99-06 V8 323 5.3L
GMC SIERRA 1500 02-06 V8 364 6.0L
GMC SIERRA 1500 HD 01-06 V8 364 6.0L
GMC SIERRA 2500 99-00 V8 323 5.3L
GMC SIERRA 2500 99-04 V8 364 6.0L
GMC SIERRA 2500 HD 01-06 V8 364 6.0L
GMC SIERRA 3500 01-06 V8 364 6.0L
GMC SIERRA C3 2001 V8 364 6.0L
GMC SIERRA DENALI 02-06 V8 364 6.0L
GMC YUKON 00-06 V8 294 4.8L
GMC YUKON 00-04 V8 323 5.3L
GMC YUKON 04-06 V8 325 5.3L
GMC YUKON 01-06 V8 364 6.0L
GMC YUKON DENALI 2006 V8 364 6.0L
GMC YUKON DENALI XL 2006 V8 364 6.0L
GMC YUKON XL 1500 00-06 V8 323 5.3L
GMC YUKON XL 1500 01-06 V8 364 6.0L
GMC YUKON XL 2500 2000 V8 323 6.0L
GMC YUKON XL 2500 00-04 V8 364 6.0L
HUMMER H2 03-06 V8 364 6.0L
ISUZU ASCENDER 03-06 V8 323 5.3L
SAAB 9-7X 05-06 V8 325 5.3L
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: 94856677895

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4.5 ★★★★★
Based on 27 reviews
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Product Reviews
A
Verified Purchase
ASM
Draper, US
★★★★★ 5
Dog loved it!
Pattern Name: Pumpkin, Size: Large
This was a fall-themed gift for our friends' large dog. He really liked it -- especially the squeaker -- and enjoyed quietly chewing on it during our visit. By the time we left, it was still in good shape. We've given their dog other chew toys, and they are usually pretty beaten up by the time we leave, but this toy still looked and squeaked fine. No telling what it looks like now, but I can definitely say it survived at least 2 days of heavy dog chewing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 3, 2025
F
Verified Purchase
Fitmomsta
Charlottesville, US
★★★★★ 5
Perfect Pumpkin for Rough Chewers!
Pattern Name: Pumpkin, Size: Large
This is the perfect chew toy for any larger dogs that chew rough! Wow! This thing has held up for over a month without a tear or piece torn off. Soooo durable! We have a 5 year old Boxer and she destroys most toys, not this one. She loves the squeaker and we love that she can’t get it out and destroy it! Total win. Plus, it’s cute for Fall/Halloween fun for your fur baby!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 8, 2025
A
Verified Purchase
Amazon Customer
Battle Creek, US
★★★★★ 4
My dogs loved it.
Pattern Name: Pumpkin, Size: Large
Well it does squeak it held up longer than anticipated. It held up for over a month.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 5
Coop’s tuff toy
Pattern Name: Pumpkin, Size: Large
Very tuff toy, and had a great bounce when you play fetch
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
S
Verified Purchase
Spicy_Neurotype
Pawtucket, US
★★★★★ 3
Holds up to chewing, but squeaker didn't last.
Pattern Name: Pumpkin, Size: Large
This pumpkin dog toy for aggressive chewers has held up to the chewing, but the squeaker, which they boasted as indestructible didn't hold up. It lasted maybe 12 hours and now it no longer squeaks which takes away a lot of the fun for my dog.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026

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