Cooling System

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The HEV requires a liquid cooling system for the HDU, inverter, DC/DC Converter (if ePTO equipped), and APG (if equipped). The HEV's cooling system is separate from the engine cooling system.

For coolant, use a mixture of 50 percent ethylene glycol and 50 percent water.

Note:
Parent topic: Hybrid Electric Vehicle (HEV) Overview
Document Number: 0000117730
Manual Publication Date: 2025-02-11
Topic Publication Date: 2024-05-09