John Deere Round Cross Section O-Ring – R28776 is a direct-seal hydraulic O-ring designed for leak-free operation in John Deere equipment, ensuring reliable sealing at ports and fittings.

Overview

• Manufacturer: John Deere
• Part designation: Round cross-section O-ring
• Part number: R28776
• Primary use: Direct seal in compatible hydraulic assemblies; seals hydraulic ports and fittings where R28776 is specified
• Geometry and seal performance: Round cross-section provides uniform compression and predictable sealing under varying pressure; extrusion resistance in John Deere systems
• OEM-aligned fit: Sized to R28776 specification to support proper groove seating and extrusion resistance
• Maintenance context: Designed for straightforward replacement to minimize downtime during routine service

Key Features

• Part Number: R28776
• Type: O-ring, round cross-section
• Brand: John Deere
• Applications: Sealing hydraulic ports and fittings in John Deere equipment where R28776 is specified
• Suitable machines: John Deere machinery and attachments that require O-ring R28776 for hydraulic/seal assemblies
• Material: Not specified
• Color: Not specified
• Installation tips:
  • Ensure grooves are clean and free of debris
  • Light lubrication when applicable to facilitate seating
  • Seat the ring evenly to prevent twisting or pinch
• System alignment: Suited for round cross-section seals in hydraulic lines and port connections; verify groove dimensions and cross-section match before installation

Compatibility

• Intended equipment: John Deere machinery and attachments that require O-ring R28776 for hydraulic/seal assemblies
• Groove verification: Confirm groove dimensions and the O-ring cross-section match R28776 before installation
• Alternative part numbers: Not listed in available data