Motorad T173 Coolant Reservoir Cap

The Motorad T173 Coolant Reservoir Cap is a direct replacement expansion tank cap engineered to seal the coolant overflow reservoir in your vehicle's cooling system. This cap prevents coolant loss through evaporation while allowing proper system ventilation and pressure relief.

Key Features:

• Manufactured to meet all OEM specifications for precise fit and function
• Designed for easy installation and removal with independent shell rotation
• Constructed from high-quality materials with proper relief and vacuum control
• Factory-tested prior to shipping to ensure quality and reliability
• Prevents coolant vapor leakage from the reservoir filler neck

A failing or worn reservoir cap can lead to coolant loss, reduced system efficiency, and potential overheating issues. The Motorad T173 provides dependable sealing performance to maintain your cooling system's integrity. Cross-reference numbers include Cartek T173, NAPA 703-1981, OReilly 7173, and Toyota 1640528070.