What Are OEM Parts? The Benefits of Choosing OEM Parts
April 29, 2026
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Replacment Rear Mount Engine Insulator. Navistar part number 1664729C7. The Engine Rear Mounting Insulator, part number 1664729C7, absorbs engine vibrations and shocks to prevent transmission to the vehicle’s frame. It reduces noise, decreases wear on engine components, and bolts to the engine block and frame.
$333.99
This is a genuine OEM part made to meet your vehicle’s exact standards. You can trust it to perform as intended and keep your truck running smoothly.
We honor the warranty provided by the original equipment manufacturer.
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