Description

Overview

The Hendrickson HT Series shock absorber controls suspension movement on compatible heavy trailer air suspension systems. This rear damper suits selected Hendrickson HT190U, HT250U, HT250US and HT300U applications, along with equivalent trailer suspension installations using the matching shock length and mounting arrangement.

Features

• Rear suspension shock absorber for heavy trailer air suspension
• Compatible with selected Hendrickson HT Series applications
• Controls compression and rebound movement through the suspension cycle
• Single shock absorber for one suspension mounting position

Specifications and Materials

Product type: rear chassis shock absorber.

Part number: 502.705.

See the Hendrickson HT250U suspension parts guide

Compatibility and Fitment

Applications include compatible Hendrickson HT190U, HT250U, HT250US and HT300U trailer suspension systems. Match the existing shock reference, mounting arrangement, compressed length and extended travel before replacement because Hendrickson HT suspensions use different shock specifications for ride height, travel and damping requirements.

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

B-23649, B23649, S-23743, S23743, HTS23649, 653511-02, 65351102, 17297, 704672-01, 70467201, S-23649, S23649, B21936, 23553-01, 2355301, S-21936, S21936, B-21994, B21994, GS0072, B-21936, B23743, B-23743, 665770, E-85938, E85938, 17306, HT-S23649, GS0102, SP7071, 23743, 665693, 665758, 680566, 680584, 17307, 23649, M85938, 912640, 680552, 680700, AMS65512

Related Parts

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

Compliance and Safety

Support the trailer suspension before removing the shock and inspect both mounting points, bolts, bushes and brackets for wear. Replace damaged mounting hardware before installation, then tighten the shock fasteners through the correct suspension service procedure.

Trailer Applications

The Hendrickson HT Series shock absorber suits trailer suspension repairs where damping has deteriorated or the existing shock is leaking, damaged or no longer controlling axle movement correctly. Confirm the existing shock reference and suspension configuration before replacing shocks across an axle.

Cross-reference and Suitability

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

Why Choose ICS Trailers

The important check with this shock is not simply whether it fits between the mounts. Hendrickson uses different damping, travel and ride-height combinations across HT suspension variants. Compare the existing reference and suspension model before ordering, particularly where a Road Friendly shock has previously been fitted. ICS Trailers can also help identify the mounting hardware or shock strap kit required when the existing bolts, bushes or straps need replacement.

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