W02-358-7206 Firestone Cab Air Shock Absorber 1S5-176 Goodyear Truck Air Spring

OEM Number

Firestone Cab Air Spring W02-358-7206

Firestone Cab Air Spring W02 358 7206

Firestone Cab Air Spring W023587206

Firestone Cab Air Spring WO2-358-7206

Firestone Cab Air Spring WO2 358 7206

Firestone Cab Air Spring WO23587206

Replace Firestone Air Spring W01-358-7202

Replace Firestone Air Spring W01 358 7202

Replace Firestone Air Spring W013587202

Replace Firestone Air Spring WO1-358-7202

Replace Firestone Air Spring WO1 358 7202

Replace Firestone Air Spring WO13587202

W02-358-7206: For FREIGHTLINER 18-29919-000

W02-358-7087: For FREIGHTLINER FLD(1988&later)

W02-358-7074: For Link(1102-0047)

W02-358-7215: For 18-40977-000

Truck cab air springs are key shock-absorbing components that connect the cab to the vehicle frame. So, what exactly do they do?

1. Efficiently dampens vibrations and cushions bumps and impacts.
This is the most fundamental and core function of an air spring. Compared to traditional leaf springs, air springs absorb vibrations through the elastic deformation of the compressed air within them. When a truck travels over potholes, encounters speed bumps, or starts or brakes under heavy load, the air spring quickly offsets the longitudinal and lateral impact forces transmitted from the frame, keeping the vibration amplitude of the cab within a comfortable range of 0.5-2Hz.

2. Flexible Cab Height Adjustment to Adapt to Multiple Scenario Requirements

The air springs adjust the internal air pressure in real time through a pneumatic system, thereby varying the ground clearance of the cab to meet the needs of various operating conditions:

Unladen/lightly loaded: Raise the cab height (typically adjustable within a range of 50-150mm) to improve chassis maneuverability and prevent the cab bottom from scraping against the ground in complex road conditions.

Heavily loaded: Lower the cab height, lowering the vehicle's center of gravity and reducing the risk of rollover at high speeds. This also shortens the distance the driver steps in and out, improving convenience.

For maintenance: A dedicated valve can be used to raise the cab to a specific height, providing ample clearance for access to chassis components (such as the engine and drive shaft), eliminating the need for a jack and improving maintenance efficiency.

3. Stabilizes vehicle posture and improves driving safety

During dynamic driving, the air springs adaptively adjust air pressure to balance the relative position of the cab and frame, minimizing changes in vehicle posture:

During cornering: Cab roll is suppressed, preventing excessive body tilt due to centrifugal force, improving steering control precision and reducing the risk of rollover in corners.

During braking/acceleration: Head-nodding and head-up effects are mitigated – the front end of the cab dips during braking to prevent driver visibility impairment; while rear end tilt is suppressed during acceleration to ensure stable front wheel grip.

During unilateral bumps: Independent air pressure adjustment in the left and right air springs reduces lateral body tilt, preventing operator errors caused by cargo shifting or cab swaying.