Specialised adaptor cap to connect to the cooling system expansion tank for leak pressure testing. This cap is suitable for late model BYD vehicles, including hybrid and battery electric models.

• Applications: BYD Atto 3 | Dolphin | E6Y | Seal
• M33.6 x P3.0 internal thread

Specialised adaptor cap to connect to the cooling system expansion tank for leak pressure testing. This cap is suitable for late model Haval vehicles, including petrol engine and hybrid models.

• Applications: Haval H6 | H9 | Jolion
• M63 x P4.0

Radiator test caps for major Chinese car makes, including BYD, Chery, Geely, GWM, Haval, LDV, and MG. Made with high quality and sturdy nylon materials.

Caps connect with a pressure pump (not included - ET1039-1) for leak tests. Or connect to a vacuum tool (not included - ET1039-PURGE) for coolant refill.