A0009109438 1126814 Seat Height Control Valve for Mercedes Actros Atego Axor for MAN Truck Grammer MSG 90.6 Levelling Valve Kit
Seat Height Levelling Valve Repair Kit Specs
OEM Part Numbers: A0009109438, 0009109438, 1126814, 1143669
Cross References: 81623986092, 1143669-00, 3500091102
Vehicle Compatibility: for Mercedes-Benz Actros, Atego, Axor Series
Truck Compatibility: for MAN TGA, TGS, TGX, TGM, TGL Series
Seat Compatibility: Fits Grammer MSG 90.6 Series Air Suspension Seats
Material: Premium Brass Inlets + Reinforced Engineering Nylon
Function: Automatic Seat Levelling & Height Adjustment Control
Condition: 100% Brand New Performance Aftermarket Kit
Product Highlights
Upgraded Brass Connectors: Unlike cheap all-plastic versions, our valve features genuine brass pneumatic inlets for superior thread strength and leak-proof performance.
Full Restoration Kit: Includes everything you need—2x Valve units, 2x screws, 2x bushings, and 1x tension spring—to completely rebuild your seat's leveling system.
Precision Leveling Control: Restores the fast, accurate response of your seat's height adjustment, ensuring maximum driver comfort and ergonomic support.
Industrial Grade Durability: The reinforced nylon housing is built to withstand the constant vibrations and air pressure cycles of a heavy-duty commercial vehicle.
⚠️ IMPORTANT: BUYER'S GUIDE (TECHNICAL VERIFICATION)
BRASS PORT CHECK: Verify your original valve uses the brass-reinforced ports for the air lines. This is the premium version for for Mercedes/MAN high-pressure systems.
LEVER ALIGNMENT: During installation, ensure the black plastic lever is correctly seated within the seat frame's control arm to prevent mechanical binding.
AIR LINE MOISTURE: Before fitting, blow out the air lines to remove any moisture or debris, which are the main causes of internal valve failure.
SERIES MATCH: Specifically designed for the **Grammer MSG 90.6** generation. Check the tag on your seat base to confirm fitment.
Comprehensive Application Matrix
Truck Brand |
Compatible Series / Seat Model |
for Mercedes-Benz |
Actros (MP2/MP3), Atego 1/2, Axor 1/2 |
for MAN Trucks |
TGA, TGS, TGX, TGM, TGL Series |
for Grammer Seats |
MSG 90.6 Series (NTS Type) |
Package Includes: 2x Seat Levelling Valve Units, 2x Mounting Screws, 2x Plastic Bushings, 1x Tension Spring



