1、Applicable Model: The seat lumbar adjustment valve is replacement for ISRI 6860 NTS, replacement for MAN TGX Truck. Please confirm whether it is consistent with the product you want before buying to avoid unnecessary return. 2、OE Number: The part numbers for reference are 29074‑02, 29074‑04E, 81623986093, 42538404. Please confirm whether it is consistent with the OE you need to avoid wrong buying and other problems. 3、Enhanced Control: This seat adjustment support valve features a sturdy 3 button design for easy adjustment control, enhancing driving comfort, especially on long trips. 4、Reliable Performance: The seat lumbar support valve can be a direct replacement for your original valve, helping restore your vehicle to like new condition, also featuring a convenient installation without complicated tools. 5、Sturdy Construction: The 3 button seat lumbar support valve is made of sturdy and high strength material, resistant to wear and tear, ensuring long lasting use.