Shacman Sitrak GLM137209 GLM1117251 Grammer Seat Air Suspension Shock Absorber for Heavy Duty Truck Seating System Parts

SHACMAN Heavy-Duty Truck Driver Seat Air Suspension System GLM137209 GLM1117251 Grammar Seat Air Suspension Shock Absorber

The GLM137209 and GLM1117251 are part numbers provided for an air suspension seat shock absorber associated with Grammer seating systems used in compatible Shacman and Sitrak heavy-duty trucks. The damper works with the seat's air suspension mechanism to control vertical movement and reduce vibration transmitted from the vehicle chassis to the driver. It is used for driver seat maintenance, suspension damper replacement, and repair of seat systems showing reduced damping or excessive movement. Replacing the damper with the correct matching component helps restore seat suspension performance and improve driving comfort during long-distance transport and demanding road conditions. The exact compatibility of the two part numbers, damper design, material, dimensions, and weight should be confirmed against the original component before ordering.