Features: This heating control valves ensures precise cabin temperature regulation with rapid heat adjustment technology, for part numbers 2160199, 1741027, 1793197, and 1503790. Constructed from corrosions resistant ABS alloy and high temperature plastic, it features multi stage airflows adjustment, waterproof connectors, and leak proof seals tested through 500 hour thermal endurances trials. Ideal for commercial truck driver and fleet maintenance crews requiring reliabled climate control component for long hauls vehicles operating in extreme temperature conditions. Maintains optimal cabin warmth during winter transport operations, effectively combating frosty weather while sustaining stable performances in engine compartments up to 120°C. Outperforms standard valves with 40% enhanced sealing efficiency and reinforced structural durability, making it a professional replacement for heavy duty automotive HVAC systems. Specifications: Type: Heating air valves Part Number: 1793197 1503790 2160199 1741027 Component: plastic Color: black Package Includes: 1pcs Heating Control valves note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.