Eaton Fuller K-4218 Range Cylinder O-Ring Kit

Product Overview

Genuine Eaton Fuller K-4218 range-cylinder O-ring and service-hardware kit for supported Eaton Fuller transmission range-section assemblies.

Verified Kit Contents

• 14344 O-ring — quantity 1
• 14765 O-ring — quantity 1
• 15114 O-ring — quantity 2
• 4308171 O-ring — quantity 2
• 5568518 O-ring — quantity 1
• 71206 silicone lubricant — quantity 1
• X-12-208 pipe plug — quantity 2
• X-8C-6109 capscrew — quantity 1

Application and Service Notes

Confirm the complete transmission model and serial number, range-cylinder design, piston and cover configuration, O-ring dimensions, pipe-plug arrangement, and existing kit number before ordering. Eaton catalogs show K-4218 in supported range-cylinder groups, but it is not universal across every transmission generation.

Depressurize the air system before service. Follow the applicable Eaton service or overhaul manual for cylinder inspection, O-ring lubrication, piston and cover installation, capscrew tightening, pipe-plug sealing, and air-leak testing.

Please confirm K-4218, the transmission identification tag, range-cylinder configuration, and all kit contents before ordering.

Parts Verification and Ordering Notice

Please confirm the existing part number, transmission identification, O-ring dimensions and material, specifications, kit contents, and application before ordering. Cross-reference numbers, parts catalogs, service manuals, repair manuals, PDF references, and application guides are reference material only and may contain errors, omissions, superseded information, or model-specific differences.

Technical References and OEM Documentation

• Eaton Inforanger — K-4218 Official Bill of Material
• Eaton Inforanger — Range Cylinder Group Showing K-4218 Components
• Eaton Download Center — Service and Overhaul Manuals