Description
When your water pump is working fine but the pulley is wobbling, cracked, or worn beyond repair, you don’t need to replace the whole pump—just the pulley. This replacement pulley is designed to fit snugly on the 24.6mm shaft and gives you that single-groove belt setup your cooling system needs to keep things running smooth.
What You’re Getting
- Precise 24.6mm bore that fits your water pump shaft without wobble or binding
- Single-groove design for proper belt alignment and consistent drive ratio
- Durable construction that handles the stress of belt tension and temperature cycles
- Direct replacement—no modifications or adapters needed
Built for Real Farm Work
This pulley serves Massey Ferguson 300 Series tractors and 4200 Series machines that spend their days doing everything from field work to loader operations. Whether you’re running a 365 on fence line maintenance, using a 4225 for hay operations, or depending on a 4265 for heavy field work, these tractors need reliable cooling to keep working when the weather turns hot and the workload gets heavy.
Made to Last
This pulley is built to handle the constant vibration and belt loads that come with farm work. The precision machining ensures proper balance to prevent harmful vibration, while the durable material stands up to weather, heat cycles, and the occasional bump from shop work or field debris.
Good to Know
Installation requires removing the fan belt and using a puller to remove the old pulley from the shaft. Keep your old pump’s pulley if it’s in good condition – sometimes new pumps come without them. Clean the shaft thoroughly before installing the new pulley, and check that it sits flush against the shaft shoulder for proper alignment.
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