Description

Overview

The BPW air spring assembly combines the rubber bellows and plastic piston in one complete replacement unit for compatible trailer suspension systems. It supports the trailer body through changing loads while allowing controlled axle movement and maintaining the suspension’s working ride height.

Features

• Complete air spring with plastic rolling piston
• 292mm diameter and 390mm overall height
• Single-piece replacement for worn, cracked or leaking assemblies
• Supplied as one complete unit

Specifications and Materials

This assembly measures 292mm in diameter by 390mm high and uses a plastic piston beneath the air spring bellows. One assembly is supplied per box.

Part number: SP55941-KP.

See the Continental axle air spring technical overview

Compatibility and Fitment

Match the BPW air spring assembly against the existing unit’s diameter, height, piston construction, mounting pattern and air connection before ordering. The most likely mismatch is selecting a similar BPW air bag with a different piston or mounting layout.

These cross-references show where this part replaces the part numbers and applications listed. Some installations may need minor changes. 70.0006A, 700006A, SP0020A, SP0020ASPM, 941 MB P30, 941MBP30, 1T17D-8.3, 1T17D83, W01 M58 8668, W01M588668, 05.429.43.57.0, 0542943570, 05.429.43.66.0, 0542943660, 0542940521, 0542940641, 0542943200, 0542940591, 0542941241, 0542942181, 0542940091, 0542943340, 0542943560, 0542943360, MLF7093, 345859, 550025977

Related Parts

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

Compliance and Safety

Depressurise the air suspension and support the trailer securely before removal. Inspect the mounting faces, fasteners and air line connection, then re-pressurise slowly and check for leaks, clearance and correct ride height after fitting.

Trailer Applications

This complete air spring suits compatible BPW trailer suspension service where the bellows leak, crack or lose pressure, or where the plastic piston has been damaged. Confirm the suspension arrangement and old part markings before replacement.

Cross-reference and Suitability

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

Why Choose ICS Trailers

ICS Trailers supplies air springs, suspension hardware and air fittings for heavy trailer repair work. Send through photos, old markings and mounting measurements if the existing assembly is difficult to identify.

Browse more Suspension