Features: 1.Leak Proof: Engine heater core bypass kit offers a reliable alternative to repair a faulty or leaking heater core, strict standard and high performance. 2.5/8in 3/4in Hose Fitting: The kit includes interchangeable 5/8in and 3/4in hose adapters, allowing for easy installation with the most common heater hoses. 3.Durable Material: Heater core bypass kit is constructed with high strength aluminum and rubber, engine heater core bypass kit is durable and reliable. 4.Optimum Performance: Heater hose connector kit meets or exceeds original OEM standards, delivering a dependable performance over time. 5.Direct Replacement: You can easily swap out the old heater core with our kit without the need for complex modifications or professional assistance. Specification: Item Type: Engine Heater Core Bypass Kit_x000D_ Material: ABS + metal + rubber_x000D_ Hose Fitting Size: 5/8in and 3/4in_x000D_ Applicable Vehicle Type: Universal for cars PackageList: 1 x U Shaped Hose 4 x Clamp 4 x Hose Fitting