A6019970430
Screw Plug for Third Coupling (Coolant Drain)
Detroit Diesel

The screw plug designed for the third coupling or coolant drain provides a secure, leak-proof seal for cooling system components. Its M8x1.55 mm thread size ensures compatibility with standard drain points, while the overall length of 43.55 mm allows for deep engagement, preventing any coolant leakage during draining or filling procedures. Crafted from corrosion-resistant materials, this plug withstands the harsh conditions of engine cooling systems, including exposure to high temperatures and chemicals. Its precise threading and robust construction facilitate easy installation and removal, making routine maintenance quicker and safer. Proper sealing of coolant drains is vital for maintaining optimal engine temperature and preventing coolant loss, which can lead to overheating or engine damage. Reliable operation of this plug reduces downtime and maintenance costs. Source One Parts Center offers this essential component to support efficient cooling system management, ensuring your engine runs smoothly under demanding conditions.