Commercial Truck Engine

Mack MP8 (Volvo D13-derived)

12.80L Inline-6 turbo diesel • Mack (Volvo Group)

Production 2007–present Class 8 415–505 hp

In production

Displacement

12.80L

Configuration

Inline-6 turbo diesel

Power range

415–505 hp

Production

2007–present

About the Mack MP8 (Volvo D13-derived)

The Mack MP8 is Mack's flagship 12.8L inline-6 turbo diesel — sister engine to the Volvo D13 (shared Volvo Group architecture). Used in Mack Anthem (highway flagship), Pinnacle (regional), and Granite (vocational). The MP8 has the same DEF/SCR complexity as the D13 and similar EGR cooler issues. Mack and Volvo D13/MP8 fleets typically report similar maintenance experience because the engines are functionally identical. The MP8 is the most-used Mack engine across the fleet.

Overview

Specifications

Manufacturer: Mack (Volvo Group)
Displacement: 12.80 liters
Configuration: Inline-6 turbo diesel
Fuel type: Diesel
Horsepower: 415–505 hp
Torque: 1460–1860 lb-ft
Production years: 2007–present
Truck classes: Class 8
Applications: Long haul, regional haul, vocational, heavy-haul (Mack Anthem)

Design and engineering

12.8L inline-6, cooled EGR + SCR + DEF, common rail injection. Identical core architecture to Volvo D13. Mack-specific software calibration.

Generations and emissions eras

MP8 Original

2007–2014

EPA 2010-era launch.

MP8 EPA 2014

2015–2017

SCR refinements, NOx limit improvements.

MP8 EPA 2017

2018–present

Major refinements — fuel economy improvements, better cold-weather performance.

Reliability and longevity

Comparable to Volvo D13. Most-common Mack engine. EGR cooler cracking at 400-500K miles is a well-known issue.

Common problems

EGR cooler cracking (well-documented at 400-500K miles in long-haul use). NOx sensor degradation at 300-400K miles. DEF heater failures in cold weather. DPF face plugging.

Pros and cons

✓ Pros

• Mack bulldog heritage
• Integrated with mDRIVE transmission
• Strong vocational + heavy-haul track record
• Volvo Group engineering

⚠ Cons

• EGR cooler issues are well-documented
• DEF system complexity
• Smaller national dealer network than Detroit/Cummins

Trucks that use this engine

Mack AnthemClass 8 Mack GraniteClass 8 Mack PinnacleClass 8

Frequently Asked Questions

What is the Mack MP8 (Volvo D13-derived)?

What trucks use the Mack MP8 (Volvo D13-derived)?

The Mack MP8 (Volvo D13-derived) is used in 3 truck models we cover: Mack Anthem, Mack Granite, Mack Pinnacle. It primarily appears in Class 8 applications for Long haul, regional haul, vocational, heavy-haul (Mack Anthem).

Is the Mack MP8 (Volvo D13-derived) reliable?

Comparable to Volvo D13. Most-common Mack engine. EGR cooler cracking at 400-500K miles is a well-known issue.

What are the common problems with the Mack MP8 (Volvo D13-derived)?

EGR cooler cracking (well-documented at 400-500K miles in long-haul use). NOx sensor degradation at 300-400K miles. DEF heater failures in cold weather. DPF face plugging.

How does the Mack MP8 (Volvo D13-derived) compare to competitors?

Mack MP8 (Volvo D13-derived) competes with other major commercial diesel engines including Cummins L9, PACCAR MX-11, and Volvo D11. Each has different strengths in fuel economy, reliability, parts availability, and resale impact. See the pros and cons section above for specific comparisons.

What's the resale impact of buying a truck with the Mack MP8 (Volvo D13-derived)?

Engine choice significantly affects truck resale value. Cummins-equipped trucks typically command the highest resale premium across all manufacturers, while emerging engines (International A26) or troubled legacy engines (MaxxForce 13) command lower resale.

Operating Mack MP8 (Volvo D13-derived)-equipped trucks? Talk to us.

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