Protect your drivetrain and reduce cab vibration with the ATRO MS46-66791-HT High-Temperature Polyurethane Engine Mount. Proudly designed and manufactured in the United States, this heavy-duty isolation mount is engineered to withstand the punishing heat, oil, and structural stresses common in demanding commercial truck applications.
Standard rubber mounts quickly degrade, crack, and soften when exposed to extreme underhood temperatures and under-cab fluids. ATRO’s custom-formulated, high-temperature polyurethane blend delivers superior tensile strength and chemical resistance, ensuring your engine stays properly aligned for a significantly longer service life.
Why ATRO Polyurethane? It is chemically engineered to outlast rubber, chemically resisting oil, grease, road grime, and extreme heat cycles without compressing or rotting over time.
Shipping Weight: 0.335 lbs
UPC Code: 751354040722
Inside Diameter (ID): 1.35"
Outside Diameter (Reference): 3.94"
Thickness: 0.88"
Material: Premium High-Temp Polyurethane
Quantity Per Vehicle: 2 required
Country of Origin: United States
This high-temperature engine mount is designed for heavy-duty commercial vehicles, offering an exact drop-in fit for select regional haul and vocational trucks:
Freightliner: Direct high-performance replacement for OE factory setups.
Sterling Truck: Direct upgrade path for heavy-haul and vocational chassis configurations.
This part is a direct or high-quality exact upgrade to the following original equipment manufacturer (OEM) and aftermarket part numbers:
| Brand | Part Number | Cross Type |
|---|---|---|
| ATRO | XMS46-66791 | Exact Cross |
| Gaff | GAFF11112 | Exact Cross |
| Freightliner (OEM) | LOR J19791 1 | OEM Cross |
| Sterling Truck (OEM) | LOR J197911 | OEM Cross |
| Automann | M203045 / M203045UB | Aftermarket Cross |
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