Description

Overview

The ROR Meritor air spring is a complete rolling-lobe suspension assembly with a plastic piston for compatible trailer axle systems. It replaces an air spring affected by leaks, cracked rubber, piston damage or poor ride-height control, allowing the suspension to support the trailer while the axle moves through its normal travel.

Features

• Complete air spring assembly with the plastic piston included
• Single-chamber rolling-lobe design
• One complete assembly supplied per box
• Suitable for identified Fruehauf, ROR-Meritor and Schmitz Cargobull trailer applications

Specifications and Materials

The assembly combines the rubber bellows, upper mounting section and moulded plastic piston as one replacement unit. Match the air connection and mounting arrangement before installation.

Part number: SP554157-KP05.

See the WABCO air spring technical specifications

Compatibility and Fitment

Compare the old unit’s markings, upper mounting pattern, air inlet, piston shape and installed height. Similar trailer air springs can share an application family while using a different piston, bolt spacing or port arrangement.

These cross-references show where this part replaces the part numbers and applications listed. Some installations may need minor changes. RML79003A3CP, RML75268CP5, 4157NP05, W01M587074, CF152721, 1R11106, 1R11-106, 15732, 550031210, SP0028M, 1DK21A3, 1DK21A31, 21222442, 1529767, V1DK21A31, V1DK21A3, US07074, US07074C, US07074P, US08840

Related Parts

Check the related service parts below against the trailer setup before ordering.

Compliance and Safety

Exhaust the suspension air pressure and support the trailer securely before removal. Inspect the mounting faces, fasteners and air line connection, then pressurise the system gradually and check for leaks, clearance and correct ride height.

Trailer Applications

Workshops fit this ROR Meritor air spring to compatible Fruehauf and Schmitz Cargobull trailers, ROR-Meritor axle series and suspension setups identified by the listed Krone, Maxus or Weweler references.

Cross-reference and Suitability

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

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