Description
When you’re in the thick of harvest season, the last thing you need is a seized-up idler sprocket bringing your cornhead to a halt. This 8-tooth greasable idler sprocket with a 5/8-inch bore keeps your chain drive running smooth and your corn flowing into the hopper where it belongs. The greasable design means you can keep it lubricated during long harvest days instead of waiting for downtime to replace a worn-out part.
What You’re Getting
- Greasable design that lets you maintain proper lubrication without stopping harvest
- 8-tooth configuration that works perfectly with standard roller chain systems
- 5/8-inch round bore that mounts securely to your cornhead’s drive system
- Heavy-duty construction that handles the constant movement and stress of harvest operations
Built for Real Farm Work
This sprocket is engineered specifically for Case IH 40 and 90 series cornheads on combines that came off the line after serial number 466451. Whether you’re running through 200-bushel corn or dealing with damp morning conditions, this idler keeps your chain tight and your header running at peak efficiency during those critical harvest windows.
Made to Last
Farm equipment takes a beating during harvest, and this sprocket is built to handle whatever your fields throw at it. The greasable bearing design means you can pump fresh grease into the component regularly, extending bearing life and preventing the costly downtime that comes with seized sprockets during peak season.
Good to Know
Installation is straightforward—just remove the old sprocket and bolt this one in place using your existing hardware. Make sure to pump some grease into the fitting before you start operating, and check it regularly throughout harvest season. A little preventive maintenance here can save you hours of downtime when every day in the field counts.


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