Description

Overview

The BPW D36 Air Spring is a complete air suspension assembly with a rubber bellows and plastic piston, designed for compatible BPW trailer suspensions. Manufactured by Sampa, it supports trailer loads while allowing suspension movement and maintaining the required ride height.

This assembly has a maximum outside diameter of 352mm and a specified height of 340mm. The plastic piston is supplied as part of the complete unit, making it different from service-only bellows and steel-piston versions.

Features

• Complete rubber bellows and plastic piston assembly.
• 352mm maximum outside diameter for matching the existing installation.
• 340mm specified assembly height.
• Suitable for selected BPW O, AL and SL trailer air suspension applications.

Specifications and Materials

• Manufacturer: Sampa
• Component: Complete air suspension spring
• Application: BPW D36 air suspension
• Construction: Rubber bellows with plastic piston
• Maximum outside diameter: 352mm
• Specified height: 340mm
• Quantity supplied: 1 complete air spring
• Vehicle application: Heavy commercial trailers

Part number: SP55881-KP.

For air spring construction and material information, refer to the Sampa air spring technical brochure

Compatibility and Fitment

This complete air spring suits selected BPW trailer suspension assemblies, including applications within the O, AL and SL suspension families. It also supports replacement applications identified by compatible ROR-Meritor, Kögel and Krone references.

Before ordering, compare the existing piston material, upper mounting arrangement, lower piston attachment, air connection and required suspension height. A matching bellows diameter alone does not establish compatibility.

The following cross-reference numbers identify verified equivalent or replacement parts for this exact application. Confirm the selection-critical fitment details against the part being replaced before fitting.

W01M588667, 881MBP30, 1R14-748, RML7992CP, 1DK322, 1529735, V1DK32Y9, 0542943510, 0542943600, 0542943690, MLF7104, 345820, 550025975

Related Parts

The following separately available components support servicing of the same air spring family.

Compliance and Safety

Before removing an air spring, support the trailer securely and exhaust the air suspension pressure following the applicable workshop procedure. Never work beneath an unsupported air suspension.

Inspect the mounting surfaces, piston attachment, air connections and neighbouring suspension components. After installation, restore air pressure gradually and check for leaks, clearance and correct ride height.

Trailer Applications

This air spring is used on compatible BPW-equipped semi-trailers, refrigerated trailers, curtainsiders and other heavy commercial trailer suspension systems. The complete plastic-piston configuration is particularly relevant when replacing an assembly with a damaged bellows or piston.

Cross-reference and Suitability

This part cross-references to the following verified equivalent or replacement part numbers:

Why Choose ICS Trailers

BPW air springs are available with different piston materials, mounting arrangements and suspension heights. The plastic-piston configuration must match the original assembly, particularly where similar D36 bellows are fitted to different suspension setups.

ICS Trailers can assist with identifying the correct complete assembly or separate service components for your BPW suspension.

• Compare the 352mm maximum diameter, 340mm specified height and plastic piston configuration before ordering.
• Send through the existing air spring markings, piston photos or suspension identification details if you need assistance selecting the appropriate replacement.

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