SKU: 34894908858

1688 1984-1991 SBC Corvette short shaft 3/4" shaft water pump

Sale price$143.10 Regular price$159.00
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Description

1688 1984-1991 SBC Corvette short shaft 3/4" shaft water pumpFlowkooler's pump 1688 for the small block chevy Corvette engine has a 16 blade skip vane impeller that is CNC machined from billet aluminum. An increased vane count and a reduction in the plate impeller clearance achieves greater flow rates, higher head pressure and a more efficient flow than other OEM water pumps. It is then surface coated with a military grade type II Class II anodized finish. FlowKooler introduced the first hi flow pumps and

Flowkooler's pump 1688 for the small block chevy Corvette engine has a 16 blade skip vane impeller that is CNC machined from billet aluminum.  An increased vane count and a reduction in the plate-impeller clearance achieves greater flow rates, higher head pressure and a more efficient flow than other OEM water pumps.  It is then surface coated with a military grade type II Class II anodized finish. 

FlowKooler introduced the first hi flow pumps and continues to improve impeller design. Why is increased flow so important to cooling a hot small block 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 CW or CCW
Cast Iron pump alternatives 1688CI has a 3/8" accessory boss
1683 (has 12 o'clock heater port)
Fan Hub Working Height 5 3/4" 
Shaft Diameter 3/4"
Inlet Outside Diameter 1 9/16"
Hose Connections 1st 2nd
Gender F
Diameter 3/4" @ 9 o'clock
Threaded Yes
Other Special Features:
  • 16 blade CNC Machined Aluminum impeller
  • Anodized with a military grade surface coating
  • Threaded 3/8" boss at 12 o'clock - this does not pass fluid (unless drilled)
  • Small-block Chevy "short" Corvette applications 3/4" shaft 
  • Shaft extends past the fan hub .465" like the OE
  • Alternative Part Numbers  10048919, 12522035, 14047008, 14069586, 14094538, 19168607
Make Model Year Block CID Liters
CHECKER MARATHON 1982 V8 350 5.7L
CHEVROLET CORVETTE 84-91 V8 350 5.7L
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: 34894908858

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4.8 ★★★★★
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Coach
Lowell, US
★★★★★ 5
Great stuff!
Color: #3 Rose Gold
Trying to give 4.5 stars. It’s phenomenal! My only .5 is that is absolutely does rub off on clothing. I’m going to a party tomorrow and I’ll try using setting spray after application. I love it though. Light weight, no odor and shimmer you can use on body, hair and even accessories!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
B
Verified Purchase
Bvrlypauge
Cuba, US
★★★★★ 5
Beautiful, Subtle, Long Lasting Sparkle
Color: #3 Rose Gold
Sprays easily and seems long lasting, (stayed on for more than 3 hours of light household work). The glitter is very fine, and that’s exactly what I wanted, it is not visible dots or shapes- my arms just sparkled when I moved them and with the changing light. Feels like nothing is there. Nice! Doesn’t feel especially moisturizing, but hasn’t dried my skin out either.
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Reviewed in the United States on September 3, 2025
D
Verified Purchase
Dest
Draper, US
★★★★★ 5
Great to have this on hand
Color: #3 Rose Gold
I bought the rose gold to add some shimmer to my body and hair. It's the right amount of shimmer to stand out. Looks super cute, it sticks easily and when you wash it off, the glitter comes off easily. The smell isn't the best, but it isn't terrible. I just use my own fragrance after I put this on. I love the glow it gives my skin and the shimmer it gives my hair. I'm going to buy this product again. Second time buying this and I love it!
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Reviewed in the United States on August 29, 2024
A
Verified Purchase
Angelina
Louisville, US
★★★★★ 4
4 out of 5
Color: #3 Rose Gold
I loved the glitter. It doesn't leave me feeling gross and sticky. The color is very pretty. The little pieces of glitter are really fine which goes well on clothes and the whole nine. The only thing is, the spray bottle is sad. I had to switch it into a different bottle to actually apply. Overall, I really liked it. I feel like I got what I paid for.
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Reviewed in the United States on December 16, 2025
B
Verified Purchase
Bueno
Grantham, US
★★★★★ 5
Siempre hacer bien su trabajo
Color: #3 Rose Gold
Me gusto
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Reviewed in the United States on April 19, 2026

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