4379-RD575230
A/C Service Valve Cap
Mack

This service valve cap is designed to protect the A/C system’s service ports from dirt, moisture, and debris, ensuring reliable operation and preventing contamination. Its robust construction provides a tight seal, maintaining system integrity during maintenance or when the system is not in use. Properly fitted caps help prevent refrigerant leaks and extend the lifespan of the A/C components. Easy to install and remove, this cap is a small but essential part of the vehicle’s climate control system. Source One Parts Center supplies this cap as a dependable accessory to support your truck’s cooling system and ensure optimal performance.