Coolant Reservoir Cap / Surge Tank Fill Cap – 572.2032 or W3678001

• 15 PSI. 2.00” – 10 TPI threads.
• Outer 2.36”  
• Depth. 1.00” Height

A small component with a critical job. Black Label Coolant Reservoir Caps are built to maintain proper cooling system pressure, helping protect against coolant loss, overheating, and premature component failure. Selected for dependable sealing performance and long service life in demanding fleet environments.

• Maintains proper cooling system pressure
• Durable, heavy-duty construction
• Reliable sealing performance
• Direct-fit OEM replacement
• Fleet-proven for commercial truck applications
  

The only caps our techs trust and install. Built for uptime. Built for serious trucks.