42538404 81623986093 ISRI 6860 NTS1 Seat 3-Button IPS Side Bolster Control Valve for MAN IVECO Scania Lateral Support Switch
Seat IPS Side Bolster Control Valve Specs
OEM Part Numbers: 42538404, 81623986093, 440365, 1440365
ISRI Ref Numbers: 29074-02, 29074-04E, 2907402, 2907404E
Product Name: ISRI 3-Button IPS Side Bolster / Lateral Support Valve
Truck Compatibility: for MAN (TGA/TGX), IVECO (Stralis), Scania (4-Series/PRGS), Volvo
Seat Compatibility: fits ISRI 6860 NTS1, 6860/885 Series IPS Seats
Adjustment Type: Triple Zone Lateral Contour (Side Bolster) Adjustment
Mounting Position: Right Hand (RH) Side of the Seat
Condition: 100% Brand New Industrial Grade Aftermarket Part
Product Highlights
IPS Contour Precision: Specifically designed for the Integrated Pneumatic System (IPS) to provide customized lateral support for the driver's torso.
Triple Zone Lateral Control: Restores the ability to inflate and deflate the side bolsters, ensuring maximum stability during cornering and long hauls.
RH Ergonomic Design: Optimized for Right-Hand mounting, with air line exits and button orientation matching the factory RH seat frame.
Plug-and-Play Pneumatics: Features integrated air lines and factory-spec connectors for a fast, leak-free installation.
⚠️ IMPORTANT: BUYER'S GUIDE (SIDE BOLSTER vs LUMBAR)
ICON VERIFICATION: Look closely at the button icons. The dots are on the **SIDES** of the seat back. If your icons have vertical dots in the center, you need the Lumbar Valve instead.
IPS SYSTEM ONLY: This valve is for seats equipped with the Integrated Pneumatic System (IPS). Check your seat tag to confirm system type.
RIGHT HAND (RH) SIDE: This is the Right-Hand control panel. For the left side, please search for the corresponding LH OE number.
AIR LINE INTEGRITY: Before fitting, ensure your seat's internal air compressor is delivering clean, dry air to prevent valve blockage.
Comprehensive Application Matrix
Truck/Seat Brand |
Compatible Models |
for MAN TRUCKS |
TGA, TGS, TGX (OE 81623986093) |
for IVECO TRUCKS |
Stralis, Eurocargo, Trakker (OE 42538404) |
for SCANIA TRUCKS |
4-Series, P, G, R, S Series (OE 440365 / 1440365) |
for ISRI Seats |
6860 NTS1 with IPS (Integrated Pneumatic System) |
Package Includes: 1x 3-Button IPS Side Bolster Valve with Integrated Air Hose



