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Home > Street Rod Parts > Engine Parts, Flathead Ford V8 > Water Pumps, Radiator

1937-1948 FORD, MERCURY CAR OR TRUCK WATER PUMP

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.

1937-1948 Ford, Mercury Car or Truck Water Pump
910-15593 View Larger
Side View
Illustration

General Information

Speedway's water pumps feature high-nickel-content iron castings, and all mounting areas are spot faced for improved fit and sealing. These water pumps are designed for 1937-1948 Ford and Mercury cars and trucks; Speedway also offers pumps for newer Flatheads. Each pump comes with a gasket.

Features

  • All-new high-nickel iron castings
  • Severe-duty roller and ball bearings
  • Ceramic seals on sturdy 3/4" shaft
  • High-flow modular impeller reduces cavitation
  • Gaskets included
  • For systems with 5/8" drive belts

Specs

  • 1" from mounting surface to the back of the pulley
  • 5/8" wide drive belt
  • Slight casting grinding may be required on some applications

Application

1937-1948 Ford and Mercury cars and trucks.

Warranties

Removing the pulley voids warranty.
Item #
Description
Units
Price 
   
Qty
91015593-DRV
Flathead Water Pump
1937-48 Stock Ford/Merc Car/Pickup, Driver Side
EA $89.99  

91015593-PASS
Flathead Water Pump
1937-48 Stock Ford/Merc Car/Pickup, Passenger Side
EA $89.99  

Suggestions
91015535
1937-1948 Flathead Ford Water Pump Gaskets
  PR $4.99  

91303945
1937-1948 Water Pump Bolt Kit, Stainless
Contains enough hardware for two water pumps
  ST $18.99  

 

Some parts are not legal for sale or use in California on any pollution controlled motor vehicles.

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Speedway Motors, Inc. | 340 Victory Lane | Lincoln, NE 68528 | 1.800.979.0122