Purpose‑Built for Severe‑Duty Equipment
Your equipment works in some of the toughest conditions imaginable. When your fluid breaks down, it causes rough shifting, brake chatter, and wear that quickly turns into downtime and expensive repairs.
United Lubricants TO-4 Fluids are purpose-built for severe-duty off-highway equipment operating under heavy loads and constant stress. Controlled friction performance and robust wear protection help ensure smooth operation and extended service life in transmissions, final drives, and hydraulic systems. Our TO-4 Fluids support reliable power transfer and component protection, helping you avoid costly repairs and keeping you running.