1. Part Number: 4921477 3417189 3401006 3417190 3330953 3330954. 2. Replacement for Cummins Engine ISM QSM Models. 3. Using stainless steel metal material, strong and durable, the plug is made of pure steel with silver plating, strong electrical conductivity, optimize engine performance, ensure the safety and stability of the car. 4. Strictly according to standard dimensions, no need to change, direct installation, superior performance, to ensure the correct adaptability and performance.
