Protect your heavy-duty truck's powertrain assembly with the premium ATRO MM96-62870-HT High-Temperature Polyurethane Upper Engine Mount. Engineered and manufactured in the United States, this heavy-duty isolation component is custom-built to survive the most punishing underhood thermal environments.
Standard rubber engine mounts rapidly degrade, crack, and soften when exposed to continuous high-temperature heat cycles and underhood fluid leaks. ATRO’s custom-formulated, high-temperature polyurethane compound offers immense tensile strength and chemical resistance, meaning it won't collapse under heavy loads or rot from contact with grease, oil, and road chemicals.
System Compatibility Note: This upper position mount features a 3-inch center-to-center measurement and is explicitly engineered to be used in conjunction with two (2) MM96-62401-HT lower position mounts for a complete high-temperature installation station.
Shipping Weight: 0.75 lbs
UPC Code: 751354028614
Part Dimensions: Length: 6" | Width: 3" | Height: 3/4"
Inside Diameter (ID): 5/8"
Outside Diameter (OD) — Reference: 1 7/8" (nipple)
Center-to-Center (C-C): 3"
Material: Premium High-Temp Polyurethane
Quantity Per Vehicle: 1 required
Country of Origin: United States
This high-temperature upper engine mount delivers a precision drop-in fitment for several major heavy-duty and vocational truck configurations, serving as a direct upgrade path for:
Western Star Trucks: Fits factory engine mounting stations (crosses to soft, hard, and alternative factory OE configurations).
This part is a direct or high-quality performance upgrade to the following manufacturer and aftermarket part numbers:
| Brand | Part Number | Cross Type | Application/Notes |
|---|---|---|---|
| ATRO | XMM96-62870 | Exact Cross | Polyurethane Upgrade |
| Gaff | GAFF12301 | Exact Cross | Aftermarket Alternative |
| Western Star (OEM) | 04-9009997 | OEM Cross | Factory "Hard" Compound |
| Western Star (OEM) | 12004-3402 | OEM Cross | Factory "Soft" Compound |
| Western Star (OEM) | 144917168930 | OEM Cross | Factory Standard |
| Automann | M203052 / M203052UB | Aftermarket Cross | Standard Replacement |
| Dyco | D324 | Aftermarket Cross | Standard Replacement |
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