The Atro MM75-62597-HT is a heavy-duty polyurethane engine mount kit designed specifically for Peterbilt 320 Series applications. Unlike standard rubber mounts that degrade over time due to chemical exposure and heat, Atro’s proprietary polyurethane formula is engineered to withstand the harshest under-hood environments while providing superior vibration dampening.
Part Number: MM75-62597-HT
Manufacturer: Atro Engineered Systems
Material: High-Temp Polyurethane (Red)
Vehicle Compatibility: Peterbilt 320 Series
Component Type: Engine Mount Kit
Chemical Resistance: Impervious to oil, grease, road salt, and cleaning solvents that typically rot rubber mounts.
High-Temp Durability: Specifically formulated for "HT" (High-Temp) applications to maintain structural integrity under intense engine heat.
Longer Service Life: Reduces downtime by outlasting OEM rubber alternatives, maintaining engine alignment longer.
Vibration Control: Absorbs high-frequency vibrations to protect the chassis and improve driver comfort.
This kit is an exact cross-reference for the following manufacturer part numbers:
| Brand | Part Number | Application Notes |
| Atro | MM75-62597-HT | Exact Cross / High-Temp Upgrade |
| Peterbilt | 05-17597 | OEM Standard |
| Lord | SSB26-1000-5 | Aftermarket Equivalent |
| Automann | M75597KUB | Aftermarket Equivalent |
Primary Fitment: Peterbilt 320 Series trucks.
Installation: Designed for direct-fit replacement of OEM 05-17597.
Tech Tip: When replacing engine mounts, it is highly recommended to inspect and replace all mounts in the set to ensure uniform load distribution and engine leveling.
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