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Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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America's Oldest Speed Shop ®

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1949-53 Flathead Car/Pickup Water Pump with Wide Belt

Specs
Material Type:
Steel
Overall Height:
9.00
Overall Length:
5.38
Sold in Quantity:
Each
Finish:
Painted
Mounted Length:
4.75
Belt Width:
0.63
Groove Count:
1
Gasket(s) Included:
Yes
Hardware Included:
No
Heater Outlet Size:
3/8" NPT
MFG. Part #:
-
Pulley Diameter:
4.38
Water Pump Style:
Short
Notes
2-3/4" from back edge of pulley to mounting surface.
1949-53 Flathead Car/Pickup Water Pump with Wide Belt
1949-53 Flathead Car/Pickup Water Pump with Wide Belt
1949-53 Flathead Car/Pickup Water Pump with Wide Belt

Click image to enlarge

Details

Reviews

Q & A

What's in the Box

Original flathead 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.

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

  • Flathead Water Pump Features (Link)
  • 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

1949-1953 Flathead Water Pump Installation Instructions (PDF)

Application

  • Used when swapping 1949-1953 engine into 1932-1948 Ford and Mercury cars and trucks
  • Also used on stock 1949-1953 Ford pickup applications

Specs


Warranties

Attempts to pull or press pulley will void warranty.

Item Details

For Wide Belt Application, Gaskets Included

Customer Reviews

Rated 5 out of 5 by 5 reviewers.
RATING BREAKDOWN
5 reviews
5 Stars
5
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

coil
Verified Purchaser
Ohio
Product Rating

Easly bolt on pump.

February 08, 2015
Great pumps, work well easy bolt on and have lasted for years.
Yes, I recommend this product.
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propwash
Medford, Oregon
Product Rating

Great Pumps.

September 29, 2013
I was using the originals. Since changing, I have increased water movement. Decreased water temp. No leaks like my originals. Good product.
Yes, I recommend this product.
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capt
Verified Purchaser
stanwood wa.
Product Rating

would buy another one if need be

July 17, 2010
was very well painted
Yes, I recommend this product.
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Countryrat2
Verified Purchaser
Miami, FL
Product Rating

Flathead water Pumps

December 09, 2011
I bought 2 pumps and you only sent one plug for the heater outlet. What happened?? By the way, stainless allen head bolts for the pumps look great, Chuck
Yes, I recommend this product.
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c
texas
Product Rating

waterpump

April 17, 2010
Used to replace leaking pump. The fit and finish were excellent.
Pros:
  • Updated seals
  • Exact Duplicate
  • Finish and finish
Yes, I recommend this product.
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Page 1 of 1

Product Q&A

12 questions : 12 answers

Will this fit a 51 Ford car ? Just want to make sure it will bolt up to the original flathead in a 51 Ford car. Is there a different belt, since you mention " Wide belt " ? Thanks,

1 answers
Tim02
Lincoln, NE, USA
March 14, 2014

Will this fit a 51 Ford car ? Just want to make sure it will bolt up to the original flathead in a 51 Ford car. Is there a different belt, since you mention " Wide belt " ? Thanks,

Answers

March 17, 2014
EricM
On the Flathead Fords the majority of the years especially the early ones up thru 48 ran the wide 5/8” belt and it was a single belt system. 49-53 saw the addition of the narrow belts where the engines ran two separate belts to increase pulley contact amount. If your 51 has two belts then you have the narrow belts and this would not be the correct water pump.

Can you get the bearings out and put in another housing, also speedway? My water pump is smoothed, painted and uses a serpentine belt. It is the Street Rodder Road Tour 2007car.

1 answers
Pecdaddy
North Las Vegas, NV, USA
February 28, 2014

Can you get the bearings out and put in another housing, also speedway? My water pump is smoothed, painted and uses a serpentine belt. It is the Street Rodder Road Tour 2007car.

Answers

March 03, 2014
EricM
Sorry I do not rebuild water pumps. These units are all new and redesigned for strength and longevity.

These are the right ones to use with a french block?

1 answers
dunnomuch
January 27, 2014

These are the right ones to use with a french block?

Answers

January 27, 2014
EricM
Many of the Flathead Ford parts interchange with the French blocks. On the water pumps if you want the flange for mounting into the vehicle part number 91015592 is correct as long as your block accepts the gasket number 91015537. If the mount surface of your block does not look like that gasket then I do not have the correct pumps for your block.

i have a 51 merc with a small width pulleys--do you sell them too

1 answers
NCGERALD
hiddenite,nc
January 02, 2014

i have a 51 merc with a small width pulleys--do you sell them too

Answers

January 03, 2014
EricM
The 49-51 Merc used the same water pump body as the earlier years except the 50-51 used the narrow belts. We apologize but cannot be of service for the 50-51 Merc water pumps. The narrow belt Ford version has the later style pump body and mount configuration.

Is this price for 1 or both, also will it fit in a 1951 F4

1 answers
Underdog
November 16, 2013

Is this price for 1 or both, also will it fit in a 1951 F4

Answers

November 18, 2013
EricM
The F4 in some instances is different but if the original in your 51 pump number 91015593 should be correct. The $89.99 is each. This pump measures 1” from the block to the back of the pulley and the other option that comes up is number 91015592 which is 2 ¾” from the block to the back of the pulley.

What the size of pipe plug this water pump? I buy a pair of water pump, but i lost pipe plug. I need to know the size pipe plug to buy new.

1 answers
Astocchi
Brasil
April 15, 2013

What the size of pipe plug this water pump? I buy a pair of water pump, but i lost pipe plug. I need to know the size pipe plug to buy new.

Answers

April 15, 2013
Jason
This pump has a 3/8 NPT hole that can be used for a heater hose connection or to install a temp sender. A plug is supplied if the customer doesn't need to use the hole. This pump is typical of those used on 1948-1952 Ford light-duty trucks. It is often used when installing "late" Ford/Mercury flathead engines into "early" Ford cars and trucks.

Application In the description it says the pumps can only be used for cars up to '48, but trucks thru '53. I'm building a 8BA flathead out of a car to be eventually used in a rat rod project. Someone suggested I use the "truck" pumps if I plan to use the engine in an "A" or deuce frame for better cooling. Will these pumps work in my application?

1 answers
CTK9
Connecticut, USA
December 09, 2012

Application In the description it says the pumps can only be used for cars up to '48, but trucks thru '53. I'm building a 8BA flathead out of a car to be eventually used in a rat rod project. Someone suggested I use the "truck" pumps if I plan to use the engine in an "A" or deuce frame for better cooling. Will these pumps work in my application?

Answers

December 10, 2012
Jason
Cooling efficiency of the pumps is very close in all the different flathead pumps we offer. This particular pump offers the mount to the later 49-53 engine and the mount flange for the earlier cars thru 48 or pickups thru 52. Used in conjunction with kit number 7209314 cushion kit makes installation of the engine in a hot rod or rat rod a more desirable configuration than the later pumps using the later motor mounts. Cooling efficiency is related more to radiator, fan used, and the air flow thru the radiator.

What is the large threaded hole on the side for? My 1952 F1 pickup only has the threaded hole on the right pump, the left pump does not have this threaded hole. Can I plug it?

1 answers
August 08, 2011

What is the large threaded hole on the side for? My 1952 F1 pickup only has the threaded hole on the right pump, the left pump does not have this threaded hole. Can I plug it?

Answers

August 11, 2011
John
There is definite mount difference between right and left and BOTH have 3/8” NPT threads for heater port. If desired one can be plugged as needed. In the flathead era the heater was an option. Speedway’s new pumps offer the versatility of using either for heater function if desired.

Q: I PLAN, TO BUY THE FOLLOWING PART'S FROM YOU GUY'S!!!! THESE NEW WATER PUMPS, YOUR NEW ["""GRIFFIN RADITOR"""]*-? } YOUR NEW EXPANSAION TANK, YOUR NEW HOSE'S, YOUR NEW THERMOSTAT'S , YOUR NEW THERMOSTAT HOUSING'S, YOUR NEW GASKETS ,FOR MY TOTALY REBUIL

1 answers
July 14, 2011

Q: I PLAN, TO BUY THE FOLLOWING PART'S FROM YOU GUY'S!!!! THESE NEW WATER PUMPS, YOUR NEW ["""GRIFFIN RADITOR"""]*-? } YOUR NEW EXPANSAION TANK, YOUR NEW HOSE'S, YOUR NEW THERMOSTAT'S , YOUR NEW THERMOSTAT HOUSING'S, YOUR NEW GASKETS ,FOR MY TOTALY REBUIL

Answers

July 18, 2011
John
Speedway’s new flathead water pumps are superior to the original and will accept more belt tension without the common leaks incurred with the originals and will also handle higher pressures desired by modern day enthusiasts. To work in conjunction with most radiators and the limitations imposed by the flathead engines we suggest using the 7# radiator caps such as part number 91015601 or 91015603.

Q: WHAT PSI RADITOR CAP SHOULD I USE ? WHAT IS THE MAX PSI THAT THE SEAL'S OF THESE WATER PUMP'S CAN HANDEL ! TO AVOID OVER HEATING ? USING STANDARD COOLENT ? OR, 40 BELOW ?

1 answers
July 08, 2011

Q: WHAT PSI RADITOR CAP SHOULD I USE ? WHAT IS THE MAX PSI THAT THE SEAL'S OF THESE WATER PUMP'S CAN HANDEL ! TO AVOID OVER HEATING ? USING STANDARD COOLENT ? OR, 40 BELOW ?

Answers

July 12, 2011
John
Speedway offers two lower pressure radiator caps for use with the flathead engines. If the other cooling components and engine are in good condition you can run the 15 pound caps such as part number 91015602 and if wanting a lower pressure cap we also offer 91015601 at 7 pound. Some other alternates in chrome or brass are available. Using any type of additive can also help keep temperatures under control
Page 1 of 2

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Original Flathead 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 5/8" shaft, making the assembly exceptionally strong and more efficient.

Works with 5/8" belts. Includes mount gaskets.

Tremec GM TKO 5-Speed to 1949-53 Ford Flathead Engine Conversion Kit
(Part #91028908)
                        

This all-in-one kit is designed to adapt the versatile TREMEC TKO-500 transmission to your 1949-53 Ford Flathead engine. Serving up 500 lb-ft of torque capacity, along with confidence-inspiring shifts and fuel-saving overdrive, the TKO offers an ideal blend of brute strength and street manners. This kit includes everything you need for installation*.

  • Sold as a complete conversion kit
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Note:  Flywheel provided in this kit is for the 1949-53 Ford Flathead engine application. The 1949-53 engine application will require this kit to utilize the OEM 3" adapter bellhousing (to be provided by the installer - not currently available from Speedway Motors).

TKO-500 Illustrated Parts Manual (PDF)

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TKO-500 Installation Tips (PDF)

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