Description
Polyurethane bolster spring service kit for Hendrickson Haulmaxx rear suspensions — ATRO LP50-24179. Replaces Hendrickson 64179-002 (non-tie-bolt design), 64179-037, and 65743-000 bolster springs on all Haulmaxx applications. ATRO’s polyurethane compound resists set, oil, and weathering better than the OEM elastomer.
Specifications
| Manufacturer | ATRO Engineered Systems |
|---|---|
| Part Number | LP50-24179 |
| Part Type | Bolster Spring Service Kit (Polyurethane) |
| Suspension | Hendrickson Haulmaxx (all models) |
| Quantity Per Vehicle | 1 kit per side, 2 kits per axle |
Kit Includes
- (2) Polyurethane bolster springs
- (1) Spacer
- (1) Flange bolt
- (9) Flange nuts
Cross References
This kit replaces or is equivalent to the following part numbers:
- Hendrickson: 64179-002 (non-tie-bolt), 64179-037, 65743-000
- Automann: MLC5
- Dayton Parts: 334-1727, 334-1845
- Euclid: E-14044
- Gaff: 13626
Applications
This bolster spring kit fits Hendrickson Haulmaxx rear suspensions, found on heavy-haul vocational truck applications:
- Hendrickson Haulmaxx HMX (all model years and capacity ratings)
- Vocational dump, mixer, logging, refuse, and on/off-highway tractor chassis using Haulmaxx
Verify your suspension is the non-tie-bolt design before ordering — the tie-bolt variant uses a different bolster spring. Replace bolster springs in pairs across the axle.









