SKU: 11762872898

1526 1964-1970 Buick and Jeep 225 300 350 401 425 3-5/8" cw water pump

Sale price$116.10 Regular price$129.00
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Description

1526 1964-1970 Buick and Jeep 225 300 350 401 425 3-5/8" cw water pumpFlowkooler High Flow pump for the 1964 1970 Buick, Jeep "Dauntless" and Olds motors has a CNC machined billet impeller is designed with an increased vane count and a reduced plate to impeller clearance. This design achieves 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. The pump originally

Flowkooler High Flow pump for the 1964-1970 Buick, Jeep "Dauntless" and Olds motors has a CNC machined billet impeller is designed with an increased vane count and a reduced plate-to-impeller clearance.  This design achieves 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.  The pump originally had a die stamped plug plate like the OE but due to the higher pressures, we re-designed the plug and now machine a 6061 billet aluminum into a press fit plug that will never come out.

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
Direction of Rotation CW
Fan Hub Working Height 3 5/8"
Shaft Diameter 5/8"
Inlet Outside Diameter 1 5/8"
Hose Connections 1st 2nd
Gender Male Female
Diameter 3/4" 7/16"
Threaded No Yes
Other Special Features:
  • 16 blade CNC Machined Aluminum impeller system
  • Anodized with aluminum military grade surface coating
  • Impeller chamber is directional to clockwise rotation
  • Fits 60s and 70s Buick, Jeep and Olds
  • Alternative Part Numbers 1363989, 1380400, 1396317, 1396346, 1396715, 1396876, 948681, J0948681, J0994149, 5511152, 58110, 511517, 25191, 252124, AW855.948681, 71155, 71263, CWP382, 101393, 10815, 815, 815A, 170115, B374R, P374R, 98015, 143164,50374, W815, 1380400, J0948681, J0994149, 2281501, 18321, ELGWP855, WP855, 87674102506, FP1318, NP591, NP9056, WP252, 1301420, 43110, WP316, 311026, HYT11026C, W1393, P590, 1393, 1477, 43110,GWG42A, 602850, 3382, WP290, 70815, W815, PC300, 1393,WP374, 41855, FP1318, T4063, US855


Parts Contained in Box:
Gasket, Installation Sheet, FlowKooler Decal
Make Model Year Block CID Liters
Buick Estate Wagon 1970 V8 350 5.7L
Buick Gran Sport 1967 V8 340 5.6L
Buick Le Sabre 1964 V8 401 6.6L
Buick Le Sabre 1964 V8 425 7.0L
Buick Le Sabre 65-64 V8 300 4.9L
Buick Le Sabre 67-66 V8 340 5.6L
Buick Le Sabre 69-67 V8 425 7.0L
Buick Le Sabre 70-68 V8 350 5.7L
Buick Skylark 67-64 V6 225 3.7L
Buick Skylark 67-64 V8 300 4.9L
Buick Skylark 67-66 V8 340 5.6L
Buick Skylark 70-68 V8 350 5.7L
Buick Special 67-64 V6 225 3.7L
Buick Special 67-64 V8 300 4.9L
Buick Special 69-68 V8 350 5.7L
Buick Sport Wagon 65-64 V6 225 3.7L
Buick Sport Wagon 65-64 V8 300 4.9L
Buick Sport Wagon 67-66 V8 340 5.6L
Buick Sport Wagon 70-68 V8 350 5.7L
Jeep CJ Series 71-66 V6 225 3.7L
Jeep Commando 71-66 V6 225 3.7L
Jeep Dispatcher 67-66 V6 225 3.7L
Jeep DJ Series 71-66 V6 225 3.7L
Jeep FC150 1966 V6 225 3.7L
Jeep J Series Pickup 71-69 V8 350 5.7L
Jeep Jeepster 71-66 V6 225 3.7L
Jeep Universal 67-66 V6 225 3.7L
Jeep Wagoneer 71-70 V8 350 5.7L
Oldsmobile F85 65-64 V6 225 3.7L
Oldsmobile Vista Cruiser 65-64 V6 225 3.7L

 

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: 11762872898

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4.3 ★★★★★
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Rosie
Massapequa, US
★★★★★ 5
Cool Cuban Shirt
Size: Large, Color: Black Dark Gray
Looks nice and lightweight. I hand washed it and it turned out well. I used an iron to lightly press it. Overall the wrinkles were not bad. Would recommend
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Reviewed in the United States on May 26, 2026
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C. Clark
Port Orchard, US
★★★★★ 4
I just wish it wasn't vacuum packed.
Size: Large, Color: Black Light Brown
If the shirt wasn't vacuum packed to introduce bad creases/wrinkles, this would be a 5 star review. For the price, this is a nice and comfortable shirt. The thickness is really good for a polyester/spandex blend shirt; it's the right thickness for a summer shirt (because polyester doesn't breath at all). The rather small amount of spandex makes it just stretchy enough to give when moving. It wears a little like a fitted shirt, but it's not too tight at all for a bigger guys. It's not a loose fitting shirt, but it still feels like the correct size (my size was large). Note: This does have a bit of a V-Neck style, there's no button for the neck and the highest button is lower than most shirts. Unless you've a good iron with a steam feature, you're going to have a hard time safely getting rid of the wrinkles/creases from the vacuum packaging. This is a delicate fabric blend and high temperatures will permanently ruin it. I tried to quick wash and low temp dry in a machine with no results. Using a good iron on delicates/synthetics heat setting wasn't quite hot enough to undo the creases. Several steam blasts did wonders, but this was a time consuming process. You might get away using a drying machine at a higher heat for a short burst, but it's a risk. The stitching is good for the panels and arms. The different colors are different pieces of materials and not just dyes. The stitching at the bottom of the shirt, however, is jagged; not terrible, but it's a blemish.
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Reviewed in the United States on July 13, 2025
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Nancy Y
Birmingham, US
★★★★★ 5
Vintage shirt goes great with vintage cars!
Size: Large, Color: Black Dark Gray
Loved it for my husband, we have vintage cars. It’s the perfect look, but I bought him 3 from this company and he chose 2 out of the three. Great shirts
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Reviewed in the United States on May 26, 2026
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Edward K
Whiting, US
★★★★★ 5
excellent shirt
Size: Large, Color: Black White
perfect fit , it's a slim fit go get one size larger .
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Reviewed in the United States on June 2, 2026
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Aaron Samuel
Chelsea, US
★★★★★ 3
Nice product but size is not as expected
Size: 3X-Large, Color: Green White
This shirt is really nice and really stands out only downside is the size isn't as expected. I usually wear a 2xl and decided to go with a 3xl and it was still a bit too fitted for me liking..Disappointed I couldnt use it
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Reviewed in the United States on November 28, 2025

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