Description
ATRO MM75-62401-HT high-temperature front engine mount for Peterbilt and Freightliner heavy-duty tractors. Direct replacement for Peterbilt 05-16401, Lord CB1125-2, Automann M17475 / M17475UB, and Freightliner M700 50NR. Polyurethane construction stands up to under-hood heat that breaks down conventional rubber mounts, with sleeve and bushing dimensions matched to the OE bolt-up.
Specifications
| Manufacturer | ATRO Engineered Systems |
|---|---|
| Part Number | MM75-62401-HT |
| Part Type | Front engine mount, high-temperature (HT) |
| VMRS Code | 014-003-000 |
| Sleeve Length | 2″ |
| Overall Height | 2 1/2″ |
| Inside Diameter | 13/16″ |
| Outside Diameter (large) | 3 3/4″ |
| Outside Diameter (small) | 2 1/4″ |
| Quantity Per Vehicle | 2 |
| Warranty | 3-year U.S./Canada (ATRO) |
Cross References
This part replaces or is equivalent to the following part numbers:
- ATRO: MM75-62401-HT, MM75-62401 (ATROX, exact cross)
- Peterbilt: 05-16401
- Lord: CB1125-2, CB11252, LOR CB11252
- Automann: M17475, M17475UB
- Freightliner: M700 50NR, LOR CB1125-2
Applications
This high-temperature front engine mount is used in pairs (qty 2 per vehicle) on Peterbilt and Freightliner conventional cab tractors that originally carried the Lord CB1125-2 / Peterbilt 05-16401 / Freightliner M700 50NR mount, including:
- Peterbilt long-hood conventionals (379, 389 family) with Lord CB1125-2 front mount
- Peterbilt set-back-axle conventionals (387, 388, 388 SBA) with the same mount call-out
- Freightliner Classic XL, Coronado, FLD120, and Columbia chassis using the M700 50NR / LOR CB1125-2 mount
Verify the existing OE part number against the table above before ordering. Front engine mounts are sold individually — replace BOTH sides as a pair for even load distribution. Pair this front mount with the matching ATRO rear mount (typically MM75-62370-HT or MM75-62372-HT) on the same chassis when both ends are degraded.
