This product is specifically designed for the BYD472QA 1.5L naturally aspirated engine in the BYD Qin PLUS DM-i. It is the oil drain plug installed at the lowest point of the engine oil pan—the oil drain plug. The oil drain plug is one of the most frequently operated components in engine lubrication system maintenance, requiring removal during every oil change to drain old oil. Its sealing performance and thread precision directly affect whether the engine will experience oil leakage.

The BYD Qin PLUS DM-i features a 1.5L Xiaoyun plug-in hybrid engine, recommended to use 0W-20 fully synthetic oil with an oil capacity of approximately 3.8-4.2L. This product is developed and manufactured strictly according to BYD OEM technical standards, using high-strength alloy steel material with high thread precision. It is equipped with a copper sealing washer or magnetic function to ensure reliable sealing and easy operation, providing direct OEM replacement.