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FlowKooler pumps patented impeller designs help stop engines from overheating and reduces engine temperature up to 30 degrees by doubling the flow of coolant and building system pressure.

Home / Products / 1745 1987-1990 Jeep AMC 150 258 CW 3.75" water pump

1745 1987-1990 Jeep AMC 150 258 CW 3.75" water pump

$131.58

1745 1987-1990 Jeep AMC 150 258 CW 3.75
1745 1987-1990 Jeep AMC 150 258 CW 3.75
1745 1987-1990 Jeep AMC 150 258 CW 3.75
1745 1987-1990 Jeep AMC 150 258 CW 3.75
1745 1987-1990 Jeep AMC 150 258 CW 3.75
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1745 1987-1990 Jeep AMC 150 258 CW 3.75" water pump

$131.58

Flowkooler high flow pump 1745 for the Jeep and AMC engine has a CNC machined billet impeller designed with an increased vane count and a reduced impeller clearance to achieve greater flow rates, higher block pressure. A Type II Class II military grade anodize surface coating protects against corrosive fluids. 

We developed this hi flow pump because Jeeps tend to overheat in traffic and on the trail. Tight engine space and limited airflow plague the cooling system but it has been proven time and time again that reducing the cycle time between the heat source and the heat sink drops engine temperatures for slow speed rock crawling and stop and go traffic.

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

General Specifications:
Type of Material of Pump Body Aluminum
Number of Blades on Impeller 8 CNC Aluminum
Direction of Rotation CW
Fan Hub Working Height 3 11/16"
Shaft Diameter 5/8"
Inlet Outside Diameter 1 3/4"
Hose Connections: 1st 2nd
Gender F NA
Diameter 5/8" NPT NA
Threaded Yes NA
Other Special Features:
  • CNC machined impeller with 60% more vane
  • Swept blades for clockwise rotation e.g. V belts
  • Has threaded 3/8" NPT female heater hose connection
  • Fits Jeep applications
  • Alternative Part Numbers 341411, 4637500, 4637500AB, 82770547, 82775119, 83502938, JO775047, JR775047, JR775163
Parts Contained in Box:
Mounting Gaskets, Installation Sheet, FlowKooler Decal
Make Model Year CID Liters Notes
Jeep J10 1987 258 4.2L v belt
Jeep Wagoneer 1987 150 2.5L v belt
AMC Eagle 1987 - 1988 258 4.2L v belt
Jeep Cherokee 1987 - 1990 150 2.5L v belt
Jeep Comanche 1987 - 1990 150 2.5L v belt
Jeep Wrangler 1987 - 1990 150 2.5L v belt
Jeep Wrangler 1987 - 1990 258 4.2L v belt

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1745 1987-1990 Jeep AMC 150 258 CW 3.75
1745 1987-1990 Jeep AMC 150 258 CW 3.75
1745 1987-1990 Jeep AMC 150 258 CW 3.75
1745 1987-1990 Jeep AMC 150 258 CW 3.75
1745 1987-1990 Jeep AMC 150 258 CW 3.75
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