9966343-1-M-Kohler-5255903-S-Pump, Fuel Assembly (W/Threaded Fittings)
Part Location Diagram of 5255903-S Kohler Pump, Fuel Assembly (W/Threaded Fittings)
See part M-7 in the diagram
( Grid squares measure 1x1 inch )
9966343-1-S-Kohler-5255903-S-Pump, Fuel Assembly (W/Threaded Fittings) Part Location Diagram of 5255903-S Kohler Pump, Fuel Assembly (W/Threaded Fittings)

Pump, Fuel Assembly (W/Threaded Fittings) 5255903-S

$66.41
In Stock
Fix Number:
FIX9966343
Manufacturer #:
5255903-S
Manufactured by:
Kohler

Jump to:

Product Description

This fuel pump kit is designed to supply consistent fuel flow to small engines, supporting smooth operation and reliable performance in lawn and garden equipment. Featuring a durable plunger-style design with multiple fitting options, it helps maintain proper fuel delivery while reducing the risk of leaks or fuel starvation. Ideal for replacing a worn or failing pump, it restores dependable fuel transfer and helps ensure reliable engine operation during regular use.

  • Works with the following brands:
    Kohler, Exmark
  • Works with the following products:
    Engine, Lawn Mower
  • Part# 5255903-S replaces these:
    52 559 03-S
Works with the following brands:
Kohler, Exmark
Works with the following products
Engine, Lawn Mower
Part Number Cross Reference
Part# 5255903-S replaces these:
52 559 03-S

Questions and Answers

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Model Compatibility

This part works with the following models:
Fix Number: FIX9966343
Manufacturer Part Number: 5255903-S
Brand Model Number Description
Exmark EX-18KO Lawn Mower - Exmark Lawn Mower Model EX-18KO/SERIAL: 70000-79999 (EX18KO/SERIAL:7000079999, EX 18KO/SERIAL: 70000 79999) Parts
Exmark EX-20KO Lawn Mower - Exmark Lawn Mower Model EX-20KO/SERIAL: 70000-79999 (EX20KO/SERIAL:7000079999, EX 20KO/SERIAL: 70000 79999) Parts
Exmark EXS-18KO Lawn Mower - Exmark Lawn Mower Model EXS-18KO/SERIAL: 70000-79999 (EXS18KO/SERIAL:7000079999, EXS 18KO/SERIAL: 70000 79999) Parts
Exmark EXS-20KO Lawn Mower - Exmark Lawn Mower Model EXS-20KO/SERIAL: 70000-79999 (EXS20KO/SERIAL:7000079999, EXS 20KO/SERIAL: 70000 79999) Parts
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Pump, Fuel Assembly (W/Threaded Fittings)
$ 66.41
  In Stock
Stock Status
 In Stock

Item is in stock and will ship today if your order is placed before 4:00 PM Eastern Standard Time.

If your order is placed after 4:00 PM EST, the in stock items will ship on the next business day.

 On Order

Item is not in stock and usually ships 3-5 business days from the time you place your order.

 Special Order

Item is not in stock and usually ships 10-15 business days from the time you place your order.

 NLA - No Longer Available

This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.