Description
When you’re running disc harrows through rocky fields or tough residue, those disc gangs take a beating. This bumper washer keeps your disc spacing consistent and protects your expensive bearings from end-play wear that can ruin a whole day’s work. It’s one of those small parts that makes a big difference when things stay where they should.
What You’re Getting
- Precision-sized 1-1/8 inch square bore fits your John Deere disc axles perfectly
- Heavy-duty construction handles the constant vibration and impact from field work
- Acts as an end stop to prevent disc blades from sliding out of position
- Protects bearing assemblies from damaging side loads and misalignment
- Direct replacement – no modifications needed on your existing setup
Built for Real Farm Work
This washer fits John Deere disc harrows across the 100, 105, 110, 111, 115 series and goes up through the bigger 620, 630, 635, 637, 640, 650 models. Whether you’re breaking up cornstalks with a smaller utility disc or preparing seedbeds with a wide finishing harrow, proper disc spacing keeps your tillage uniform. It also works on 700 series mulch finishers and 955 rippers where consistent spacing matters for good residue flow.
Made to Last
Disc equipment runs in some of the most punishing conditions – rocks, roots, and heavy residue that would destroy lighter parts. This bumper washer is built to handle those impacts while maintaining its shape and fit. Quality materials resist wear from dirt and debris that gets packed in around disc assemblies during operation.
Good to Know
Mark your gang positions before disassembly to maintain proper spacing when installing new washers. While you’ve got things apart, it’s a good time to check your disc blades for wear and pack fresh grease in those bearings. A little maintenance now saves a lot of downtime later when you’re trying to get fields ready for planting.






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