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2021 Mack Anthem Overview, Reviews, Ratings & Specs

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Cathleen V | December 3, 2025
The 2021 Mack Anthem is a Class 8 heavy-duty truck designed for long-haul and vocational applications. Introduced as a modern interpretation of classic Mack truck design, it emphasizes aerodynamics, driver comfort, and efficiency. Key trims typically include various configurations based on sleeper cab size and axle setups. Pricing for a new 2021 Mack Anthem could range from approximately $120,000 to $180,000 or more, depending on specifications. It stands out for its distinctive styling, blending iconic Mack aesthetics with contemporary aerodynamic features, and its reputation for ruggedness and driver-centric amenities, making it a popular choice for owner-operators and fleet managers alike.
The Good

The 2021 Mack Anthem offers robust performance, legendary reliability, and exceptional driver comfort, appealing to both the pride of ownership and the bottom line. Its aerodynamic design enhances fuel efficiency, while its durable construction ensures longevity, providing excellent long-term value.

The Bad

Potential buyers of the 2021 Mack Anthem should be aware of the typically higher initial purchase price compared to some competitors. Additionally, while generally reliable, complex electronic systems can sometimes require specialized diagnostics and repairs, potentially leading to higher maintenance costs for certain issues.

2021 Mack Anthem: Quick Overview

  • Engine Options: The 2021 Mack Anthem is primarily powered by Mack's own engine offerings, most notably the Mack MP series. Common options include:
    • Mack MP7: A 10.8-liter inline-6 engine, typically for lighter vocational or regional haul applications.
    • Mack MP8: A 12.8-liter inline-6 engine, the workhorse for most long-haul operations.
    • Mack MP10: A 16.1-liter V8 engine (less common in later models but available), offering maximum power for the heaviest loads.
  • Horsepower: Horsepower ratings vary significantly with the engine choice and configuration. For the MP7, expect ranges from around 325 to 405 horsepower. The MP8 typically ranges from 405 to 505 horsepower, with higher options sometimes available. The MP10 could offer upwards of 500-600 horsepower.
  • Fuel Economy: Fuel economy is highly dependent on the specific engine, transmission, rear axle ratios, load, terrain, and driving style. Mack Anthems are designed with aerodynamics and efficiency in mind, aiming to optimize MPG. Specific figures are not generally published in a standardized format as they are highly variable in commercial trucking, but expect figures in the 5-7 MPG range under optimal conditions for long-haul.
  • 0-60 Times: 0-60 mph acceleration times are not a primary metric for heavy-duty trucks like the Mack Anthem. Performance is measured by the ability to maintain speed under load and climb grades efficiently, rather than rapid acceleration.
  • Towing Capacity: As a Class 8 truck, the Mack Anthem is designed for heavy towing. Its Gross Combination Weight Rating (GCWR) can exceed 100,000 pounds, often reaching 140,000 pounds or more, depending on the chassis configuration, engine, drivetrain, and axle ratings. Specific towing capacity is dictated by the application and the trailer being pulled.
  • Trim-Level Features: While not having traditional car-like trims, the Anthem offers various configurations and option packages. Key features include:
    • Cab Options: Day cabs, 48-inch flat-top sleepers, 70-inch studio sleepers, and 70-inch Sky-Rise sleepers, offering varying levels of driver comfort and living space for long hauls.
    • Aerodynamics: Integrated aerodynamic design elements, including a sculpted hood, fenders, and optional fairings, to reduce drag.
    • Interior Comfort: Ergonomic driver's seat, spacious cab layout, advanced climate control, available premium interior packages with upgraded materials and amenities.
    • Technology: Integrated infotainment systems, navigation, and diagnostic tools.
    • Safety: Available advanced driver-assistance systems (ADAS) like Bendix Wingman Fusion (collision mitigation, lane departure warning), along with standard safety features.
    • Powertrain Customization: A wide array of transmission options (e.g., Mack mDRIVE automated manual transmission, traditional automatics, manuals), axle configurations (single, tandem), and rear axle ratios to suit specific hauling needs.

2021 Mack Anthem Specifications

Vehicle Information
Year 2021
Make Mack
Model Anthem
Trim -
Style -
Type Truck
Category Heavy Truck
Manufacturing Details
Made In United States
Manufacturing City MACUNGIE
Dimensions
Doors -
Curb Weight -
Gross Vehicle Weight Rating 33001 pounds
Overall Height -
Overall Length -
Overall Width -
Wheelbase Length -
Standard Seating -
Engine & Performance
Engine MP8
Engine Size 13L
Engine Cylinders -
Transmission -
Transmission Type -
Transmission Speeds -
Drivetrain 6x4
Additional Features
Anti-Brake System -
Steering Type -
Pricing
Manufacturer Suggested Retail Price (MSRP) -
Invoice Price -
Delivery Charges -

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What Problems Does the 2021 Mack Anthem Have?

The 2021 Mack Anthem, as part of a robust commercial vehicle platform, generally enjoys a reputation for solid reliability. However, like any complex machine, specific issues can arise. One area that can sometimes be a concern for heavy-duty trucks in general, and potentially the Anthem, is the exhaust aftertreatment system (EGR, DPF, SCR). These systems, while crucial for emissions compliance, can be sensitive to fuel quality, maintenance schedules, and operating conditions, potentially leading to regeneration issues or component failures over time. Another area to watch can be the electronics and sensors within the vehicle. Modern trucks are heavily reliant on sophisticated computer systems, and issues with sensors, wiring harnesses, or control modules can manifest as warning lights or drivability problems. While not specific to the 2021 model year, some owners have reported issues with the Mack mDRIVE automated manual transmission, such as occasional hesitation or rough shifting, though this is often resolvable with software updates or proper maintenance. Recalls for commercial vehicles are common and typically address specific components or systems identified as potential safety hazards. For the 2021 Mack Anthem, recalls would generally be issued by Mack Trucks and cover a range of potential issues, from braking system components to electrical connectors or steering system parts. It is crucial for owners to stay informed about any issued recalls and have them addressed promptly by an authorized dealer. Long-term reliability concerns often hinge on consistent and diligent maintenance. Adhering to the recommended service intervals, using high-quality fluids and filters, and addressing any minor issues before they escalate are key to maximizing the lifespan and minimizing unexpected breakdowns of a Mack Anthem. The robust construction of Mack trucks generally lends itself to good longevity when properly cared for.

How long will the 2021 Mack Anthem last?

A 2021 Mack Anthem, with diligent maintenance and responsible operation, is designed to achieve significant mileage, often exceeding 1 million miles over its service life. Owner data and industry averages suggest that trucks used for long-haul operations, covering 100,000 to 150,000 miles per year, can remain productive assets for 7-10 years or even longer. Long-term durability is a hallmark of Mack trucks, with their robust chassis and heavy-duty components contributing to their longevity. Weaknesses that may emerge over extended periods, particularly beyond 500,000 miles, could include wear and tear on drivetrain components, suspension parts, and the aforementioned emissions systems. Regular proactive maintenance is the most critical factor in mitigating these potential issues and ensuring the Anthem continues to perform reliably for many years and miles.

What Technology & Safety Features are Included?

The 2021 Mack Anthem integrates a suite of technologies designed to enhance driver productivity, safety, and comfort. Standard and optional features contribute to a modern trucking experience.

Built-in Tech & Entertainment: The Anthem typically features an integrated dashboard that consolidates controls and information. While not as advanced as a passenger car's infotainment, it often includes an AM/FM/WB radio, USB ports for device connectivity, and Bluetooth for hands-free calling. Optional upgrades can include more sophisticated infotainment systems with larger displays, navigation capabilities, and enhanced audio systems. Diagnostics are also integrated, allowing drivers and technicians to monitor the truck's health.

Driver-Assistance Features: Mack offers several driver-assistance technologies designed to reduce fatigue and improve safety. A key offering is the Bendix Wingman Fusion system, which bundles several functions:
  • Collision Mitigation: Uses radar to detect potential forward collisions and can automatically apply braking if necessary.
  • Lane Departure Warning: Alerts the driver if the truck drifts out of its lane without the turn signal engaged.
  • Adaptive Cruise Control: Maintains a set speed and automatically adjusts to maintain a safe following distance from the vehicle ahead.
Other available features can include traction control and stability control systems.

Safety Features: Standard safety features include robust braking systems, advanced lighting, and durable construction. The driver's cabin is engineered for protection, with reinforced structures. While specific NHTSA or IIHS crash-test ratings are not typically provided for Class 8 trucks in the same way as passenger vehicles, commercial truck manufacturers adhere to rigorous safety standards and testing protocols to ensure structural integrity and occupant protection. The integration of driver-assistance technologies significantly contributes to overall safety by helping to prevent accidents. Optional features may extend to enhanced visibility options like additional mirrors or cameras.

What Colors Options are Available?

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2021 Mack Anthem Prices and Market Value

When new, the 2021 Mack Anthem typically commanded prices ranging from approximately $120,000 to $180,000 or more, heavily dependent on specific configurations, engine choices, sleeper cab options, and additional equipment. Current used market prices for a 2021 model can vary significantly but might fall within the $70,000 to $120,000 range, again, based on mileage, condition, and specifications. Commercial trucks, including the Mack Anthem, experience depreciation, but it's often less steep in the initial years compared to consumer vehicles, especially for well-maintained models in high demand. Factors significantly affecting resale value include mileage, engine hours, overall condition (cosmetic and mechanical), maintenance history, tire wear, and the presence of popular options like the mDRIVE transmission or larger sleeper cabs. Trucks with lower mileage and a documented service history tend to retain their value better.

2021 Mack Anthem Cost of Ownership

Owning a 2021 Mack Anthem involves significant costs, making it a substantial investment rather than an economical choice for most individuals. Insurance premiums for Class 8 trucks are considerable, influenced by coverage levels, driving records, and the truck's value. Fuel costs are a major ongoing expense, directly tied to mileage and the truck's fuel efficiency. Maintenance and repair costs are also substantial; while durable, these trucks require regular servicing, and parts/labor for heavy-duty components can be expensive. Unexpected repairs, especially on complex systems like emissions or transmissions, can be costly. Overall, the Mack Anthem is a costly vehicle to own, but its value is derived from its productivity and earning potential in commercial operations.

2021 Mack Anthem Fuel Efficiency

Fuel Type Diesel
Fuel Capacity -
City Mileage -
Highway Mileage -

2021 Mack Anthem Warranty

Basic
Original warranty 0 months / No data
Estimated remaining Expired
Powertrain
Original warranty 0 months / No data
Estimated remaining Expired
Rust
Original warranty 0 months / No data
Estimated remaining Expired

2021 Mack Anthem Insurance

Insurance for a 2021 Mack Anthem is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.

How Does the 2021 Mack Anthem Compare to Other Truck?

The 2021 Mack Anthem competes in the highly contested Class 8 heavy-duty truck market against formidable rivals such as the Kenworth T680, Peterbilt 579, Freightliner Cascadia, and International LT Series.

Performance: Mack Anthems, powered by their proprietary MP series engines (MP7, MP8, MP10), offer strong, reliable performance suitable for long-haul and vocational duties. They are known for their robust power delivery and torque. Competitors like Freightliner Cascadia and Kenworth T680 also offer powerful engine options from Detroit Diesel and PACCAR, respectively, often providing comparable or even slightly better fuel efficiency in certain configurations.

Features: The Anthem's standout feature is its blend of iconic Mack styling with modern aerodynamics and a driver-focused interior. It offers comfortable sleeper options and advanced safety features like Bendix Wingman Fusion. Rivals like the Kenworth T680 and Peterbilt 579 are also highly regarded for their driver amenities, advanced technology, and aerodynamic designs, often considered leaders in cabin comfort and integration. The Freightliner Cascadia is known for its strong focus on fuel efficiency and advanced technology integration.

Reliability: Mack has a long-standing reputation for building durable trucks. The Anthem continues this legacy, with many owners reporting high reliability. However, specific components like the mDRIVE transmission can occasionally present issues, as can the complex emissions systems found across all modern heavy-duty trucks. Competitors also have strong reliability records, with brands like Kenworth and Peterbilt often praised for their build quality and longevity. Freightliner, while also reliable, has sometimes faced perceptions of being more sensitive to maintenance variations.

Price: The Mack Anthem typically sits in a competitive but sometimes slightly premium price bracket compared to some rivals, especially when equipped with high-end options. Used prices are also competitive.

Recommendations:
  • Similar Alternatives: For a similar blend of traditional styling and modern capability, the Peterbilt 579 and Kenworth T680 are excellent choices. They offer comparable comfort, features, and reliability.
  • For Efficiency Focus: If maximum fuel efficiency is the absolute top priority, the Freightliner Cascadia is often considered a benchmark.
  • For Robustness: For those who value extreme durability and a no-nonsense approach, the Mack Anthem is a strong contender, alongside its Kenworth and Peterbilt counterparts.
Ultimately, the best choice depends on specific operational needs, driver preferences, and dealer support in the region.

Final Verdict: Is the 2021 Mack Anthem a Good Truck?

The 2021 Mack Anthem is an ideal choice for owner-operators and fleet managers who prioritize a blend of distinctive styling, robust performance, and driver comfort in a Class 8 truck. Its legendary Mack durability and focus on driver-centric amenities make it a compelling option for long-haul applications. It is worth buying for those who value its iconic heritage combined with modern efficiency and safety features. Buying used, particularly a well-maintained unit with lower mileage and desirable configurations like the mDRIVE transmission or a larger sleeper, can offer significant value. New purchases are best suited for businesses seeking the latest advancements and comprehensive warranties. Specific trims with larger sleeper cabs are best for long-haul drivers, while day cabs are more suited for regional or vocational use. The Anthem represents a solid, dependable investment for serious trucking professionals.

2021 Mack Anthem Owner Reviews

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Cathleen V

Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.