PLUG O-RING (Hyundai HNXKDE-00153)

A worn plug O-ring can allow fluid leakage past the sealing point, reducing system pressure. This aftermarket replacement part references Hyundai as the OE maker and cross-references part number HNXKDE-00153. The plug O-ring functions as a static seal between a threaded plug and its mating bore. Its primary mechanical role is to compress into the gland groove when the plug is tightened, creating a leak-resistant barrier. A common failure consequence is gradual seepage that leads to fluid loss and eventual component starvation. Keeping the sealing surface clean and the O-ring free of nicks helps maintain consistent closure. Verify the serial number or application, then call (562) 693-7748.

Part number variants: HNXKDE-00153, hnxkde-00153, HNXKDE00153, hnxkde00153