SKU: 95387318389

32-48Pair 1932-1948 Ford 1939-1948 Mercury Flathead water pumps

Sale price$100.52 Regular price$111.69
Save 10%

Pay in installments of $27.92 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 19 - Sep 24

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

32-48Pair 1932-1948 Ford 1939-1948 Mercury Flathead water pumpsThere are a number of waterpumps on the Flathead motors. Please read the applications listed below before ordering. For year people have battled overheating on the Ford and Mercury Flathead engines. One of the reasons is the coolant flow rate. When an engine overheats and people experiment they can sometimes point to the wrong cause for the effect. It is a fallacy that low flow causes overheating. The reality is higher flow rates in a pressurized

There are a number of waterpumps on the Flathead motors. Please read the applications listed below before ordering.

For year people have battled overheating on the Ford and Mercury Flathead engines.  One of the reasons is the coolant flow rate.  When an engine overheats and people experiment they can sometimes point to the wrong cause for the effect.  It is a fallacy that low flow causes overheating.  The reality is higher flow rates in a pressurized system will help shed the heat.

This is not a replica of the OEM cast iron impeller with thick vanes, a shallow eye and irregular density inherent in pouring sand castings.  Our impeller is precision machined from 6061 billets of aluminum.  It has more vanes, and opened up eye and thinner vane walls to draw more fluid flow into and out of this pump and through your block and into the radiator. 

Getting hot coolant into the radiator more frequently will provide more opportunities to shed the heat.  At higher rpms you'll build block pressure to reduce the likelihood of steam vapor forming on the jacket wall.  This impeller design 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 inline 6 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.

Install Tip: We had feedback that the pumps higher flow rate was causing fluid loss out of non pressure systems.  The OE radiators used baffles to prevent premature coolant but the fiberboard seal inside an OE cap may be weaken beyond the ~3.5psi they hold.  If you lose fluid at the neck please consider a rebuild kit with the correct height to prevent this.

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

General Specifications:
Type of Material of Pump Body Cast Iron
Number of Blades on Impeller 12
Direction of Rotation CW
Other Special Features:
  • CNC Machined billet aluminum impeller
  • Impeller protected with anodized military grade surface coating
  • 5/8" single groove pulley
  • Flatheads require two pumps; this is the price for both left AND right
  • Corresponding OEM Parts GH5592DRV / GH5592PASS 
Parts Contained in Box:
Mounting Gaskets, Installation Sheet, FlowKooler Decal

 

MAKE MODEL YEAR
FORD CARS MODEL 18 1932
FORD CARS MODEL 40 1933
FORD CARS MODEL 40 A 1934
FORD CARS MODEL 48 1935
FORD CARS MODEL 50 1935
FORD CARS MODEL 74 1937
FORD CARS MODEL 78 1937
FORD CARS MODEL 81 A 1938
FORD CARS MODEL 82 A 1938
FORD CARS MODEL 85 1938
FORD CARS SEDAN DELIVERY 1937-1947
FORD CARS STANDARD 1939-1940
FORD CARS DELUXE 1939-1948
FORD CARS MODEL 11 A 1941
FORD CARS SUPER DELUXE 1941-1948
FORD CARS MODEL 21A 1942
     
FORD TRUCK 67 (1/2 TON) 1936
FORD TRUCK 68 (1/2 TON) 1936
FORD TRUCK 1/2 TON PICKUP 1937-1947
FORD TRUCK 3/4 TON PICKUP 1937-1947
FORD TRUCK 1 TON PICKUP 1937-1947
FORD TRUCK 1-1/2 TON PICKUP 1940
FORD TRUCK F1, F2, F3, F4 1948
     
MERCURY SERIES 99A 1939
MERCURY SERIES O9A 1940
MERCURY SERIES 19A 1941
MERCURY SERIES 29A 1942
MERCURY M SERIES TRUCK 1948
MERCURY MERCURY 1946-1948
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: 95387318389

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 12 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
Murat Denisultanov
Belleville, US
★★★★★ 5
Super lightweight and smooth for gaming
Really enjoying this mouse so far. It feels super light in the hand and moves very smoothly while gaming. The clicks are responsive, and the wireless connection has been stable with no lag issues. Battery life also seems pretty good. The shape is comfortable even during longer sessions. The only thing I would improve is adding a little more grip texture on the sides, but overall it’s an excellent gaming mouse.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
A
Verified Purchase
Alex
Lake Worth, US
★★★★★ 4
Really great mouse, but terrible skates.
I absolutely loves this mouse. I usually have stuck to only using razer mice in the past. However I made the switch to this one and its honestly so great. I only really have one complaint and the rest is amazing. Pros: Battery life is honestly amazing. Its really quiet because it no longer clicks, its just haptic feedback like the ps5 controller. You can adjust when it actually clicks which is super cool just like a Hall effect keyboard, because it's the same tech. Mouse just feels great and the included grips are nice, but they do take some getting used to as they aren't what I was expecting. However I have come to like them. Cons: It's vey expensive for a mouse, there's a lot of competition and a variety of mice esp way cheaper. The stock skates are absolutely terrible, that's why I changed them jade's and now its perfect. No complaints after that. However for a mouse this expensive, I was hoping for better skates. I also don't really like the scroll wheel, to be fair I do come from razer mice so that might be why I hate it. It also takes some getting used to as the mouse is front heavy because of the switches on the mouse, but I bet you can fix that if you have a powerplay to balance it out. However I have this mouse for 2 months now and I absolutely love it and I wouldn't switch for another. The only thing I would change if you were buying this mouse today is to also order skates so you can replace them. Would be a 5/5 if it weren't for the terrible skates. TL;DR: Great mouse if purchasing, buy skates as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
B
Verified Purchase
Bryan
Birmingham, US
★★★★★ 5
Huge Upgrade!!!
After just a week of using this mouse, I can confidently say this is the best peripheral purchase I have ever made. I initially wasn't in the market for a new mouse, until my scroll wheel broke on my razer mouse. I decided to just pull the trigger on the X2 Superstrike instead of purchasing another razer mouse. The mouse material feel is excellent, and the wheel is great as well. I've also seen some reviews disliking the skates on the X2 Superstrike, however I personally found them to be great. The haptic feedback mouse click seemed a bit gimmicky before I actually used it. Right off the bat, the mouse click feels incredibly responsive and similar to that of any high quality mouse. You get enough feedback and it doesn't feel that much different from a regular mouse click. But, you also have optionality to adjust a ton of settings, like accuation, feedback strength, etc. For gaming, with the right settings, this genuinely feels amazing, and that's before the performance upgrade. As many other reviewers have noted, it noticeably decreases latency on top of all of this. Another huge perk with this mouse I found, was that it's almost dead silent as well. No more loud clicking! My only critique with the mouse are the side buttons and the size. The side buttons are the only part of the mouse that feel "cheap". Because I use the side buttons often in competitive games, I notice it a lot more than probably most people would. I also have large hands, and this is the smallest mouse I have used. I got used to it pretty quick, but the mouse is on the smaller side. Nonetheless, if you are looking to upgrade your mouse and have the money, I would 100% recommend. This feels as impactful as going from a 60hz monitor to a 144hz+.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
A
Verified Purchase
Anna
Alexandria, US
★★★★★ 5
Works so well I got a second one!
Size: One Size
I rarely write reviews but I came here specifically because this mouse is great! As someone who is technologically challenged I appreciate everything about it-- I bought one of these 5 years ago and use it heavily everyday, it still works like a dream which is why I bought a second one to use on a separate computer. Started using this new one and it was just as easy to set up as the first one, just plugged in the USB piece and was able to use it immediately, no further setup required. As a bonus, it already came with batteries like the last one did (by the way I never turn off my 5 year old mouse and the same batteries are still in it working great). Smooth operation, ergonomic, easy to use, and portable!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
M
Verified Purchase
MJ
Alexandria, US
★★★★★ 5
Rase of use
Size: One Size
LOVE this mouse. Tried several and this is the one you want. This one is High quality and easy to use. Great price. Works and works.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026

recommand products