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Motor Mount Kit | High Temp | Peterbilt Model 379, 320

SKU MM75-62372-HT

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6 In Stock as of December 08, 2022 8:30 AM EST.

Peterbilt High Temp Motor Mount for model 379 with CAT engine and 320 with Cummins engine.

Product Specs for Atro MM75-62372-HT

  • Application:Peterbilt
  • ATROX Number:MM75-62372
  • Automann Number:M20310, M75001, M20310UB
  • Dyco Number:D-83, D83
  • Gaff Number:GAFF12369
  • Newstar Number:S-20894
  • Peterbilt Number:07-08003-003, CB2203-72, MR1001
  • Volvo Number:Vehicles & Parts > Vehicle Parts & Accessories > Motor Vehicle Parts > Motor Vehicle Engine Parts
  • UPC: 751354028539
  • MPN: MM75-62372-HT
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Atro MM75-62372-HT Details

High Temperature mounts are developed with new polymers that withstand extreme heat.  High Temp mounts maintain their physical properties through out the load, head and stress.


  • Length: 2-9/16"
  • Small Outside Diameter: 1-1/2"
  • Large Outside Diameter: 2-9/16"
  • Misc.: Sleeve ID: 5/8"; Washer ID: 3/4"

Kit Components

  • (1) Upper Mount
  • (1) Lower Mount
  • High Temperature Mount

Customer Q&A - Atro MM75-62372-HT

Is this the correct part needed for, We have a 2008 Peterbilt 387 with a Cummins ISX engine We are trying to replace the Rear Motor Mount OEM Rubber Bushings. Local PB Dealer states No Such Item & will only sell complete Flywheel Hanger Assembly.

Unfortunately, we are unable to use the application to confirm the fitment on these bushings. According to Atro these were used on Peterbilt models with Cummins engines but other than cross reference numbers I can't confirm that they are exactly what you need. Peterbilt MR1001 Models: 379 w/CAT; 320 w/Cummins CB2203-72 Models: 379 w/CAT; 320 w/Cummins

What are the dimensions on these? Do you have a drawing so I can see if they will fit my application?

Following are the dimensions: Length: 2-9/16", Small Outside Diameter: 1-1/2", Large Outside Diameter: 2-9/16", Misc: Sleeve ID: 5/8"; Washer ID: 3/4"


ATRO Engineered Systems (ATRO) is a supplier of heavy-duty proprietary polyurethane suspension parts designed to deliver longer-lasting performance and reliability. ATRO’s free-rotation bushings with proprietary polyurethane material deliver longer life, lower cost-per-mile bushings that are superior to standard rubber or other polyurethane bushings. ATRO bushings are manufactured in the U.S.A and have proven to last three to five times longer than standard rubber and polyurethane bushings.

ATRO’s free-rotation design allows the inner piece to rotate freely, eliminating bushing “wind-up” and allowing less stress on the bushing material and ultimately the suspension components, thereby helping to prevent premature failure.

ATRO Bushings:

  • Meets or exceeds OE specifications
  • Eliminates bushing “wind-up”
  • Installs easily and requires no maintenance or grease
  • Resists contaminants such as road salt, grease, oil, acidic cleaning solvents, hydraulic fluid, diesel fuel, and more
  • Provides a longer life – up to three to five times longer than traditional rubber bushings
  • Enables the suspension to operate as designed to minimize premature part failure

ATRO Engineers Systems’ patented designs, state-of-the-art manufacturing plant and extensive aftermarket distribution network make them an industry leader developing products which improve performance, eliminate downtime, and help control costs.

Atro Warranty

The Atro warranty covers polyurethane to metal de-bonding, loose fit of internal components or signs of wear that will lead to premature failure under normal use for the time periods listed below.

3 Year Warranty

On all Atro products with the following exceptions noted below.

2 Year Warranty

On 2” eye torque rods.

1 Year Warranty

On LP50 Series Hendrickson pads and equalizers.

No Warranty

Atro does not offer warranty coverage on installation tools

What the warranty does not cover

Any warranty is void if product condition shows signs of overloading or improper application. Mixing rubber bushings and Atro bushings on the same application voids all warranties. You can view the full details of Atro’s warranty here.

How to get service

Atro handles all of its warranty claims, please contact ATRO customer service by phone at 1-800-325-6114 for approval and to obtain an RMA#.

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