Package Includes: The engine heater fittings include 1 heater hose and 4 heater hose connectors. The size of the hose is 5/8 × 5/8 ×3.5 inches. The two sizes of the connectors are 5/8" and 3/4" in diameter, which can meet the different adaptation requirements at both ends of the hose

Premium Materials: The heater hose connectors are made of high-quality aluminum. They are lightweight, sturdy, and have good corrosion resistance, which gives them a pretty long service time. The heater hose is made of excellent rubber and has exceptional heat resistance. It will not be easily damaged

Great Function: The core bypass kit achieves rapid circulation and preheating of the coolant through connectors and bypass pipes. At the same time, it can bypass the faulty heater core to maintain the system operation, ensuring the normal operation of the engine in low-temperature conditions

Applicable Scope: The model of the heating core bypass kit is 626-001, which is suitable for the heater core in various engine cooling systems and compatible with most common heater hoses, featuring wide applicability. So that you can purchase directly without spending extra effort to select

Easy to Use: First, you need to cut off the coolant, then remove the faulty heater core, and install this bypass kit beside it. After installation is completed, the coolant can be replenished and the air vented, and the airtightness should be checked to ensure it is good