Eaton PS-386 Synthetic Heavy-Duty Transmission Lubricant

Product Overview

Eaton PS-386 is a full-synthetic, non-EP heavy-duty transmission lubricant for Eaton and Eaton Cummins manual and automated manual transmissions that require the PS-386 specification.

Product Identification

• Manufacturer: Eaton
• Specification / listing SKU: PS-386 / PS386
• Product type: Synthetic heavy-duty transmission lubricant
• Exact container size, UPC, and package number: Confirm the physical container before ordering

Supported Transmission Families

Eaton identifies PS-386 for supported Endurant HD, Endurant XD, UltraShift PLUS, Fuller Advantage, FR, and RT Series transmissions. The exact lubricant requirement, sump capacity, drain interval, and service procedure depend on the complete transmission model, serial number, duty cycle, and current Eaton service literature.

Installation and Service Notes

Confirm the transmission identification tag and required lubricant specification before filling or servicing. Do not select a lubricant by transmission family alone, and do not mix fluid specifications unless the applicable OEM service information expressly permits it.

Please confirm the original lubricant specification, exact product package, transmission model, and application before ordering.

Parts Verification and Ordering Notice

Please confirm the existing product number, container label, package size, lubricant specification, transmission identification tag, and application before ordering. Cross-reference numbers, compatibility guides, service manuals, repair manuals, parts catalogs, PDF references, and application information are provided as reference material only and may contain errors, omissions, superseded information, or model-specific differences. Do not rely solely on a specification name, transmission family, manual, catalog, or guide when selecting a lubricant. Please contact All Truck Gears before ordering when the required fluid is uncertain.

Technical References and OEM Documentation

• Eaton PS-386 Synthetic Transmission Lubricant — Official Product Page
• Eaton Download Center — Lubrication and Transmission Service Publications

Verified OEM Publication References

• TCMT0020: Eaton Approved Lubricant Suppliers
• TCMT0021: Roadranger Lubricant Products Manual
• Transmission-specific service manual: Required for the exact transmission model and serial number