Mack engines
Mack’s engine directory distinguishes MP7, MP8 and newer MP13 offerings. Similar displacement or a shared brand does not make their specifications interchangeable. Identify the actual engine and generation before comparing torque, service requirements or compatibility with a transmission. These pages explain the family differences and the records to request; they do not replace a serial-number-specific service document or an assessment of a used engine.
Compare the model families
| Model / family | Application | Overview | Model notes |
|---|---|---|---|
| MP7 | 11-litre diesel family | Mack lists MP7 as an 11 L diesel engine with published ratings from 325 to 425 hp. It is a different family from the 13 L MP8. The range is a catalogue description, and the installed rating must be confirmed on the truck’s own records. | Read the profile → |
| MP8 | 13-litre diesel family | MP8 is Mack’s 13 L diesel engine family. Mack’s catalogue distinguishes it from MP7 and the newer MP13 offerings. Its engine name spans configurations, so a general MP8 reference is not enough to establish a particular truck’s torque rating or equipment. | Read the profile → |
Bring the exact specification.
The family name helps organize your search. The build sheet, serial number and relevant manufacturer documentation identify what is installed. Compare like-for-like applications and request evidence for cost or performance claims.
Manufacturer references support the model facts. Our examples and comparisons are editorial interpretation prepared with AI assistance, not road tests or an expert inspection.
Check the year, market and exact build before applying a specification. This guide does not authorize parts fitment, repairs, modifications or loading.
Mack manufacturer reference ↗Independent editorial resource. Brand names identify equipment; they do not imply a partnership or endorsement.