Category 4 to Category 3 Top Link Ball Bushed – 79mm OD × 31.8mm ID (B6350)
Restore the correct fit and reliable operation of your tractor's three-point linkage with the Category 4 to Category 3 Top Link Ball Bushed B6350. Designed as a direct replacement for worn or damaged top link balls, this precision-machined steel component features a Category 4 outside diameter (79mm) with a Category 3 inside diameter (31.8mm), allowing Category 4 tractor top links to connect securely to implements fitted with Category 3 top link pins.
Manufactured from quality steel, this top link ball is precision-machined to provide an accurate fit while maintaining correct implement alignment. It helps reduce movement and wear within the top link assembly, providing dependable performance for cultivation, seeding, tillage, transport and other heavy-duty agricultural applications.
Part Number
Key Features
- Category 4 outside diameter with Category 3 inside diameter.
- Direct replacement top link ball.
- Precision-machined steel construction.
- Converts Category 4 top links to suit Category 3 top link pins.
- Provides accurate fit and improved implement stability.
- Helps minimise wear caused by excessive linkage movement.
- Suitable for heavy agricultural and industrial applications.
- Simple direct-fit replacement.
Technical Specifications
- Part Number: B6350
- Outside Diameter (OD): 79mm (Category 4)
- Inside Diameter (ID): 31.8mm (Category 3)
- Material: Steel
- Application: Top link ball bushed
Compatibility
Suitable for tractors fitted with Category 4 three-point linkage top links where connection to Category 3 implements using 31.8mm top link pins is required. Ideal for operators running mixed fleets of tractors and implements requiring Category 4 top links while retaining Category 3 implement pin sizes.
Benefits of Using a Category 4 to Category 3 Top Link Ball
This bushed top link ball allows larger Category 4 tractors to safely connect to Category 3 implements without excessive clearance around the top link pin. The precision-machined bore provides improved support for the smaller Category 3 pin, helping reduce wear, improve implement stability and maintain correct hitch geometry during field operation and transport.
Installation Tip
Inspect the top link, implement pin and retaining hardware before installation. Replacing worn pins or damaged linkage components at the same time will maximise the service life of the new top link ball and maintain a secure, correctly aligned connection.
The C&M Difference
Collier & Miller supplies a comprehensive range of replacement tractor linkage components for professional agricultural applications. Our quality replacement parts are selected to provide dependable fit, reliable performance and excellent value, helping reduce downtime during critical farming operations.
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