Description

Overview

The Hendrickson Watson & Chalin shock absorber is an extended-service, high-damping damper for compatible heavy trailer air suspension. On selected Hendrickson systems it is used in front-mounted positions to control suspension movement, with equivalent Watson & Chalin applications using the same replacement family where the original shock reference matches.

Features

• Extended-service high-damping shock specification
• Eye-to-eye bush and sleeve mounting arrangement
• Suits selected INTRAAX and HT trailer suspension systems
• Front-mounted on supported Hendrickson configurations

Specifications and Materials

Service type: extended service with high damping.

Mounting style: eye-to-eye with bush and sleeve mounts.

Part number: 503.432.

See the Hendrickson trailer shock technical guidance

Compatibility and Fitment

On Hendrickson systems, the matching shock family is used across selected INTRAAX AAL, AANL, AANLS, AAEDL and SP suspensions together with selected HT250US and HT300US configurations. Fitment varies with ride height, shock position and mounting arrangement, so compare the suspension identification and old shock markings before replacement.

These cross-references show where this part replaces the part numbers and applications listed. Some installations may need minor changes.

S24579, 19603, B24579, 680579, 680573, B-33314, B33314, B-24579, 65465, B-22312, B22312, S-24579, S22312, S-22312, 85939, M85939, 65511, 317779, 665804, 19249

Related Parts

Check the related suspension hardware against the mounting arrangement before ordering.

Compliance and Safety

Support the suspension correctly before removing the shock. Inspect the mounting eyes, bushes, sleeves, bolts and brackets for wear or distortion, and replace damaged mounting hardware before the trailer returns to service.

Trailer Applications

The Hendrickson Watson & Chalin shock absorber suits trailer suspension repairs where the existing damper is leaking, damaged or no longer controlling axle movement correctly. Match the old shock reference, suspension model, ride height and mounting position rather than selecting by eye size alone.

Cross-reference and Suitability

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

Why Choose ICS Trailers

Several Hendrickson shocks use similar eye mounts but differ in travel, damping and the ride-height range they are designed around. Check the old shock number and suspension identification before ordering, particularly when the trailer has previously had replacement shocks fitted. If the markings are difficult to read, send through photos of the shock and suspension tag so ICS Trailers can help narrow down the correct match.

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