Description

Overview

The steel piston air spring replaces a complete suspension unit on compatible ROR-Meritor, Trailor, York and associated heavy vehicle applications. Its rubber bellows and steel piston work together to carry the vehicle load while allowing controlled axle movement and maintaining the suspension’s operating height.

Features

• Complete air spring assembly with steel piston included
• One complete assembly supplied per box
• Suitable for identified ROR-Meritor, Trailor and York trailer applications
• Also cross-referenced for selected DAF, Renault and Volvo truck applications

Specifications and Materials

The assembly combines the rubber air bellows, upper mounting section and steel piston as one replacement unit. The steel piston construction is a critical selection detail and must match the existing suspension arrangement.

Part number: SP55810-K.

See the WABCO air spring technical specifications

Compatibility and Fitment

Compare the old part markings, piston material, air inlet position, upper and lower mounting pattern, installed height and available suspension clearance before ordering. The most likely mismatch is choosing an air spring from the same application family with a different piston or stud arrangement.

These cross-references show where this part replaces the part numbers and applications listed. Some installations may need minor changes. 2229210200, 2229260200, 2228220200, 2228240200, 2228260200, 2228000200, 2228210200, 02229210200, 02228220200, 02229260200, 02228240200, RML7921C, 810MB, 1384273, 1322719, 1518203, W01M586345, 1R14-059, 1R14059, 1R14716, 1R14-716, 15635F, 15635, 506243, SP0015M, US07337, 1D28A2, 5021170405, 5000452939, 21215632, 21208082, 12108082, 6504646G, V1D28A2, 1080707, 9518147160, 785168

Related Parts

Check the related service parts below against the suspension assembly before ordering.

Compliance and Safety

Exhaust all suspension air pressure and support the vehicle securely before removing the old assembly. Inspect the mounting faces, fasteners and air connection for wear or corrosion, then pressurise the system gradually and check for leaks, unrestricted movement and correct ride height.

Trailer Applications

This steel piston air spring covers identified AR and RSM suspension models, ROR-Meritor FL11000 and other axle series, plus compatible Trailor and York trailer setups. Additional applications include selected DAF and Renault truck series and Volvo F10 and F12 models.

Cross-reference and Suitability

This part cross-references to or suits the following equivalent part numbers and compatible alternatives:

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