54837050044 Water Pump Shaft With Gear for KTM SX 250 2002-2016 SX250
54837050044 Water Pump Shaft With Gear for KTM SX 250 2002-2016 SX250
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Water Pump Shaft with Gear for KTM SX 250
This water pump shaft with gear is a direct replacement component that drives the impeller inside the cooling system, replacing OEM cross-reference 54837050044 for the KTM SX 250.
Overview
This water pump shaft with gear is a replacement drivetrain component for the coolant pump on the KTM SX 250 two-stroke. It transfers rotational drive from the engine into the pump impeller, keeping coolant circulating through the cylinder and head during hard motocross use. Built for riders and mechanics performing a top-end or cooling system rebuild on the SX 250.
Built For Performance
- Machined steel shaft sized to the factory water pump bore
- Integrated drive gear for direct engagement with the engine drive
- OEM cross-reference 54837050044 for straightforward parts matching
- Heat-treated surface for wear resistance under continuous pump load
- Precision ground bearing journals for smooth rotation
- Drop-in replacement for the original water pump shaft assembly
Fits These Machines
- for KTM SX 250 2002
- for KTM SX 250 2003
- for KTM SX 250 2004
- for KTM SX 250 2005
- for KTM SX 250 2006
- for KTM SX 250 2007
- for KTM SX 250 2008
- for KTM SX 250 2009
- for KTM SX 250 2010
- for KTM SX 250 2011
- for KTM SX 250 2012
- for KTM SX 250 2013
- for KTM SX 250 2014
- for KTM SX 250 2015
- for KTM SX 250 2016
On-The-Job Use
- Cooling system rebuilds on the KTM SX 250
- Water pump seal and bearing replacement jobs
- Top-end service where the pump shaft shows scoring or play
- Track-side repairs during a race weekend
- Restoring a worn or seized pump drive on older SX 250 machines
Specs At A Glance
| Part Number(s) | 54837050044 |
| Component Type | Water pump shaft with gear |
| Machine Fitment | for KTM SX 250 |
| Model Years | 2002 to 2016 |
Good To Know
Q: Do I need to replace the seals and bearings at the same time? A: It is good practice to fit new water pump seals and bearings whenever the shaft is replaced, since worn seals are a common cause of coolant leaks. Q: Is this an original KTM part? A: This is an aftermarket replacement made to fit for KTM SX 250 machines and cross-references OEM number 54837050044.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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