Product Summary

Mechanical Water Pump Type, Steel Housing Material

  • Completely new water pumps feature severe-duty roller & ball bearings, close tolerances & modular impellers for maximum flow & reduce cavitation
  • These pumps are reproductions of the 1948-1952 Ford truck water pumps. They are often used when installing late flatheads into '48-older cars/'47 older trucks. These don't fit 49-51 Mercury. These pumps use the 5/8" wide v-belts
  • These pumps also have modern ceramic seals on a heavy duty 3/4" shaft, making the assembly exceptionally strong & more efficient
  • Forged all-new high-nickel iron casting with a premium black painted designed for use on systems with 5/8" drive belts
  • This water pump is for 1949-1953 engines in 1932-1948 Ford & Mercury car & trucks as well as stock 1949-1953 Ford pickups

Comes as a Kit

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Key Specs

MFG. Part #91603010
Water Pump TypeMechanical
Water Pump StyleShort Depth
Housing MaterialSteel
Housing FinishPainted
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Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91603010 Details

We got your back with our Speedway Flathead Water Pump Kit! Both water pumps and needed gaskets are included to simplify your Flathead engine build, so you can spend more time and money on other aspects of your project!

Kit Includes:

  • (1) Speedway Motors 1949-1953 Flathead Ford/Mercury Engine Drivers Side Water Pump, Wide Belt Pulley for 1948-1952 Pickup or 1932-1948 Car Application
  • (1) Speedway Motors 1949-1953 Flathead Ford/Mercury Passenger Side Water Pump Wide Belt Pulley for 1948-1952 Pickup or 1932-1948 Car Application

Note: This water pump is for 1949-1953 engines in 1948-1952 pickups or 1932-1948 cars.

Speedway Motors 1949-1953 Ford Flathead Engine Water Pump, Wide Belt Pulley

Original Flatheadhead water pumps have always suffered from unreliable bronze bushings and carbon seals. They almost always leaked and even Ford manuals warned mechanics not to tighten fan belts too tight. The excess slack allowed belts to slip and lose contact with the generator and water pump pulleys, causing more cooling and power problems.

Speedway's completely new water pumps feature severe-duty roller and ball bearings, close tolerances and modular impellers to provide maximum flow and reduce cavitation. They also have modern ceramic seals on a heavy duty 3/4" shaft, making the assembly exceptionally strong and more efficient.

  • Includes both drivers side and passenger side pumps
  • For Wide Belt Application, Gaskets Included
  • Belt Width: 0.63"
  • Mounted Length: 4.75"
  • Heater Outlet Size: 3/8" NPT
  • Overall Length: 5.38"
  • Overall Height: 9.00"
  • Designed for use with 5/8" belt drive system
  • Severe-duty roller and ball bearings
  • Ceramic seals on sturdy 3/4" shaft
  • High-flow modular impeller reduces cavitation
  • Includes gasket and a connection for the heater hose return
  • Application
    • Used when swapping the 1949-1953 engine into 1932-1948 Ford and Mercury cars and trucks
    • Also used on stock 1949-1953 Ford pickup applications

 

Application

Speedway Motors 91603010 Specifications

KEY SPECS
MFG. Part #91603010
BrandSpeedway Motors
Water Pump TypeMechanical
Water Pump StyleShort Depth
Housing MaterialSteel
Housing FinishPainted
GENERAL
Pulley Type CompatibilityV-Belt
Pulley Diameter4.38"
Groove Count1
Belt Width0.625"
Housing ColorBlack
Gasket(s) IncludedYes
Sold in QuantityKit

Ratings & Reviews

4.7

23 Reviews

Overall Assessment

Our product has received glowing reviews for its excellent quality, robustness, and effective functionality. Confirmed qualities from customers highlight the product's superior material, with some commenting it's even better than the original. Its practicality is noted, referring to the pumps' precise fittings, enhanced performance and ability to pump water efficiently. Some customers, having to modify their setups, indicated it's particularly suitable for 49-51 Mercury flatheads. The product received hearty recommendations in lieu of alternatives due to its value, highlighting it as an enduring investment. Thus, our product stands out for its build, efficacy, and adaptability.

4.6

23 reviews

5

18

4

2

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3

2

0

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0

Most Liked Positive Review

5.0

49-53 truck water pump set

Fitting an 8BA in a 1933 model BB truck. Need this style pumps to mount to early frame. Stock engine mounts with 3.5 inch risers to clear crank pulleys. Tight fit, but it goes in.

Most Liked Negative Review

3.0

Good product, but…

…these pumps will bolt up to a 49-51 Mercury flathead but will not line up with the motor mounts. If you have a stock 49-51 Mercury you will have to rebuild your original pumps or try to track down some good used ones.

Filter by Ratings

For an Ongoing Project

5.0

5 months ago

6Blackie6

Saskatoon Canada

Verified

They look good. Will not know about functionality for a couple years

Would Recommend

The waterpumps worked perfectly very nice quality

5.0

6 months ago

Bob

Canada

Verified

Very good quality

Would Recommend

I would buy this product again

5.0

9 months ago

Roper

Blue Ridge, GA

Verified

Water pumps seemed like quality parts right out of the box, were instrumental in cooling down the F-5 flathead and the fact that they came painted already was a bonus.

Would Recommend

They had my parts!

5.0

a year ago

G-Man

Minnesota

Verified

It fits my flathead!

Would Recommend

Very nice looking product. I would buy again.

4.0

2 years ago

Model a guy

Joplin,mo

Verified

These are very clean made parts. It made painting much easier. These are better quality then the originals.

Would Recommend

yes

3.0

2 years ago

none

Ozark MO

Verified

All Good.

Would Recommend

Would buy again

4.0

2 years ago

Jake

Pa

Verified

Good quality

Great pumps and great quality!!

5.0

2 years ago

Zeek

Arkansas

Verified

Very nice quality. Already come painted black. Fit perfect. Easy to paint. I painted them to match the rust.

Would Recommend

Bolted right on and worked like a charm

5.0

3 years ago

Phil

Naples, Fl

Verified

It does it's job

Yes if needed

5.0

3 years ago

67goingthing

Dix, IL

Verified

Awesome product

Would Recommend

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Showing 10 of 23 reviews

Questions & Answers

1 Question • 1 Answer

Will this fit a 1951 ford F100 with a 239 cubic inch?

by Naomi

• 7 years ago

1 answer

1 of 1 questions shown

Fitment

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

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  • 337 Ford Flathead V8

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  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

  • 255 Ford Flathead V8

  • 337 Ford Flathead V8

Customer Impersonation Script