The 2015 Mack GU813 is a heavy-duty truck primarily used for vocational applications like construction, refuse, and specialized hauling. Produced within a broader generation of Mack trucks, the GU813 is known for its robust construction and powerful performance. Key trims often revolved around specific powertrain configurations and chassis options. While precise pricing for vocational trucks varies greatly based on configuration and options, new models historically ranged from the high six figures to over a million dollars. Its popularity stems from its legendary durability, customizable chassis, and the strong reputation of the Mack brand for reliable workhorses.
The Good
The 2015 Mack GU813 excels in raw power and unwavering reliability, built for the toughest jobs. Its rugged design evokes a sense of trust and capability, while surprisingly comfortable cabs offer a productive workspace. This truck represents a sound investment for businesses valuing long-term performance and dependable operation.
The Bad
Potential weaknesses for the 2015 Mack GU813 include the complexity and cost of repairs for advanced emissions systems, particularly the diesel particulate filter (DPF). Older models might also exhibit wear and tear on suspension components and drivetrains if not meticulously maintained. Fuel economy, while acceptable for its class, is generally not a strong suit compared to lighter-duty vehicles.
2015 Mack GU813: Quick Overview
- Engine Options: The 2015 Mack GU813 was typically equipped with Mack's proprietary MP series engines. Common options included the Mack MP8 and MP10 engines.
- Horsepower: Horsepower ratings varied significantly based on the engine choice and application. The Mack MP8 typically ranged from around 300 to 500 horsepower, while the larger MP10 could offer up to 600 horsepower.
- Fuel Economy: Fuel economy for heavy-duty vocational trucks like the GU813 is measured differently than for passenger vehicles and is highly dependent on load, terrain, driving style, and specific configuration. Generally, expect figures in the range of 4-7 miles per gallon (MPG).
- 0-60 Times: 0-60 times are not a relevant metric for this class of vehicle. These trucks are designed for torque and pulling power, not acceleration.
- Towing Capacity: Towing and hauling capacities are substantial and highly configurable. Depending on the axle configuration, chassis rating, and powertrain, the GU813 could be spec'd for gross vehicle weight ratings (GVWR) well over 50,000 pounds and gross combined weight ratings (GCWR) exceeding 100,000 pounds for specialized applications like heavy haulage.
- Trim-Level Features: As a vocational truck, there aren't traditional "trim levels" like in consumer vehicles. Instead, features are determined by the intended application. Common configurations include day cabs and crew cabs, various suspension types (e.g., parabolic springs, multi-leaf), different axle ratios, and specialized body upfits (e.g., dump beds, concrete mixers, refuse bodies). Interior features typically focus on functionality and durability, with options for upgraded seats, infotainment systems (basic for the era), and advanced instrumentation for monitoring vehicle performance. ABS, power steering, and tilt/telescopic steering columns were standard.
2015 Mack GU813 Specifications
Vehicle Information
| Year | 2015 |
| Make | Mack |
| Model | GU813 |
| Trim | - |
| Style | - |
| Type | Truck |
| Category | Heavy Truck |
Manufacturing Details
| Made In | United States |
| Manufacturing City | MACUNGIE |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | 330001 pounds |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 12.7L I6 |
| Engine Size | 12.7L |
| Engine Cylinders | 6 |
| Transmission | - |
| Transmission Type | - |
| Transmission Speeds | - |
| Drivetrain | - |
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 2015 Mack GU813 Have?
For the 2015 Mack GU813, as with most heavy-duty trucks of this era, frequently reported issues tend to revolve around the complex emissions control systems. The Diesel Particulate Filter (DPF) regeneration system and its associated sensors can be a source of problems, potentially leading to reduced engine performance or costly repairs if not properly maintained. Issues with the Exhaust Gas Recirculation (EGR) system are also not uncommon.
Owners have sometimes reported electrical gremlins, particularly concerning dashboard warning lights or intermittent sensor failures, which can be challenging to diagnose. The complex wiring harnesses used in these vocational trucks can be susceptible to wear and tear over time, especially in harsh operating environments.
While specific major recalls for the 2015 model year might be limited, it's crucial to check the National Highway Traffic Safety Administration (NHTSA) database for any outstanding safety recalls that may have been issued for this vehicle. Long-term reliability is generally considered very good, provided the truck receives diligent and consistent maintenance. The powertrain, including the Mack engines and transmissions (often Eaton Fuller manuals or Allison automatics), are built for longevity. However, components subject to extreme stress, such as clutch assemblies, driveline U-joints, and suspension bushings, will naturally wear out over time and require replacement. For the 2015 model year, specific issues tied to that exact year are less likely to be distinct problems compared to general wear and tear inherent in high-mileage, heavy-duty vocational trucks. Proper fluid changes, filter replacements, and regular inspections are paramount to mitigating common issues and ensuring continued reliability.
Owners have sometimes reported electrical gremlins, particularly concerning dashboard warning lights or intermittent sensor failures, which can be challenging to diagnose. The complex wiring harnesses used in these vocational trucks can be susceptible to wear and tear over time, especially in harsh operating environments.
While specific major recalls for the 2015 model year might be limited, it's crucial to check the National Highway Traffic Safety Administration (NHTSA) database for any outstanding safety recalls that may have been issued for this vehicle. Long-term reliability is generally considered very good, provided the truck receives diligent and consistent maintenance. The powertrain, including the Mack engines and transmissions (often Eaton Fuller manuals or Allison automatics), are built for longevity. However, components subject to extreme stress, such as clutch assemblies, driveline U-joints, and suspension bushings, will naturally wear out over time and require replacement. For the 2015 model year, specific issues tied to that exact year are less likely to be distinct problems compared to general wear and tear inherent in high-mileage, heavy-duty vocational trucks. Proper fluid changes, filter replacements, and regular inspections are paramount to mitigating common issues and ensuring continued reliability.
How long will the 2015 Mack GU813 last?
The 2015 Mack GU813 is engineered for extensive service life, often exceeding 500,000 to over a million miles with proper, rigorous maintenance. Owner data and anecdotal evidence suggest that trucks used in vocational applications, like construction or refuse, might accumulate mileage at a faster rate but also receive more frequent, specialized servicing.
The inherent durability of Mack's chassis and powertrains is a significant strength. Weaknesses over time primarily manifest as wear and tear on components subject to constant stress, such as suspension parts, brakes, and clutch (if manual). While the core engine and transmission are robust, emissions systems (DPF, EGR) can require attention and potential replacement as the vehicle ages. With meticulous care, these trucks can remain dependable workhorses for many years, demonstrating exceptional long-term value and resilience.
The inherent durability of Mack's chassis and powertrains is a significant strength. Weaknesses over time primarily manifest as wear and tear on components subject to constant stress, such as suspension parts, brakes, and clutch (if manual). While the core engine and transmission are robust, emissions systems (DPF, EGR) can require attention and potential replacement as the vehicle ages. With meticulous care, these trucks can remain dependable workhorses for many years, demonstrating exceptional long-term value and resilience.
What Technology & Safety Features are Included?
The 2015 Mack GU813, being a vocational heavy-duty truck, prioritizes functionality and durability over cutting-edge infotainment and driver-assistance technologies commonly found in consumer vehicles. Built-in tech is generally basic but robust.
Standard Tech & Entertainment: Standard features would typically include a digital or analog tachometer and speedometer, fuel gauges, and various warning lights. Audio systems were usually simple AM/FM radios with optional CD players. Bluetooth connectivity or navigation systems were rare as standard offerings and would have been part of optional packages or aftermarket installations. Power windows and door locks were common on higher configurations.
Driver-Assistance & Safety Features: Safety features are paramount in heavy-duty trucks. Standard safety equipment includes powerful hydraulic or air brakes with Anti-lock Braking Systems (ABS) as a critical component. Power steering is standard for maneuverability. Visibility is enhanced through large mirrors. While advanced driver-assistance systems (ADAS) like adaptive cruise control, lane departure warnings, or automatic emergency braking were not widely available or standard on vocational trucks in 2015, some advanced traction control systems might have been optional.
Optional Features: Optional features could include more advanced climate control systems, air-ride seats for improved driver comfort on long hauls, auxiliary lighting, heated mirrors, and potentially more sophisticated diagnostic displays. Some specialized applications might have had integrated PTO (Power Take-Off) controls or auxiliary hydraulic system monitoring.
Crash-Test Ratings: Formal crash-test ratings like those provided by the NHTSA or IIHS for passenger cars and light trucks are not typically conducted or published for heavy-duty vocational trucks like the Mack GU813. The safety of these vehicles is addressed through rigorous design standards, safety interlocks, and compliance with federal motor vehicle safety standards (FMVSS) pertaining to their class. The robust construction of the chassis and cab is inherently designed to offer a high level of protection to occupants.
Standard Tech & Entertainment: Standard features would typically include a digital or analog tachometer and speedometer, fuel gauges, and various warning lights. Audio systems were usually simple AM/FM radios with optional CD players. Bluetooth connectivity or navigation systems were rare as standard offerings and would have been part of optional packages or aftermarket installations. Power windows and door locks were common on higher configurations.
Driver-Assistance & Safety Features: Safety features are paramount in heavy-duty trucks. Standard safety equipment includes powerful hydraulic or air brakes with Anti-lock Braking Systems (ABS) as a critical component. Power steering is standard for maneuverability. Visibility is enhanced through large mirrors. While advanced driver-assistance systems (ADAS) like adaptive cruise control, lane departure warnings, or automatic emergency braking were not widely available or standard on vocational trucks in 2015, some advanced traction control systems might have been optional.
Optional Features: Optional features could include more advanced climate control systems, air-ride seats for improved driver comfort on long hauls, auxiliary lighting, heated mirrors, and potentially more sophisticated diagnostic displays. Some specialized applications might have had integrated PTO (Power Take-Off) controls or auxiliary hydraulic system monitoring.
Crash-Test Ratings: Formal crash-test ratings like those provided by the NHTSA or IIHS for passenger cars and light trucks are not typically conducted or published for heavy-duty vocational trucks like the Mack GU813. The safety of these vehicles is addressed through rigorous design standards, safety interlocks, and compliance with federal motor vehicle safety standards (FMVSS) pertaining to their class. The robust construction of the chassis and cab is inherently designed to offer a high level of protection to occupants.
What Colors Options are Available?
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2015 Mack GU813 Prices and Market Value
When new, the 2015 Mack GU813, configured for vocational purposes, would have commanded a significant price, often starting in the range of $100,000 to $200,000 and easily exceeding $250,000 or more depending on specific upfits and options.
On the used market today, prices for a 2015 Mack GU813 can vary dramatically based on mileage, condition, the specific vocational body installed (e.g., dump body, mixer, specialized hauler), and overall maintenance history. Expect to find them ranging from $30,000 to $100,000 or higher.
Depreciation is substantial for heavy-duty trucks, especially in the first few years. However, well-maintained vocational trucks with robust reputations like Mack tend to hold their value relatively well compared to consumer vehicles. Factors affecting resale value include the demand for specific vocational applications, the condition of the engine and drivetrain, the wear on the body/equipment, and the overall absence of significant rust or structural damage. Trucks with lower mileage and comprehensive service records will always command a premium.
On the used market today, prices for a 2015 Mack GU813 can vary dramatically based on mileage, condition, the specific vocational body installed (e.g., dump body, mixer, specialized hauler), and overall maintenance history. Expect to find them ranging from $30,000 to $100,000 or higher.
Depreciation is substantial for heavy-duty trucks, especially in the first few years. However, well-maintained vocational trucks with robust reputations like Mack tend to hold their value relatively well compared to consumer vehicles. Factors affecting resale value include the demand for specific vocational applications, the condition of the engine and drivetrain, the wear on the body/equipment, and the overall absence of significant rust or structural damage. Trucks with lower mileage and comprehensive service records will always command a premium.
2015 Mack GU813 Cost of Ownership
Owning a 2015 Mack GU813 is generally a costly endeavor, reflecting its heavy-duty nature. Insurance premiums will be significantly higher than for light-duty vehicles due to its value, intended use, and potential for extensive damage. Fuel costs, while dependent on usage, are substantial given its powerful engine and weight, typically averaging 4-7 MPG.
Maintenance and repair costs are also considerable. Regular preventative maintenance, including fluid changes and filter replacements, is crucial and expensive. Repairs for major components, especially the powertrain or emissions systems, can run into thousands of dollars. While a robust truck, its sheer size and complexity make it costly to own and operate, best suited for businesses where its capabilities translate directly into revenue.
Maintenance and repair costs are also considerable. Regular preventative maintenance, including fluid changes and filter replacements, is crucial and expensive. Repairs for major components, especially the powertrain or emissions systems, can run into thousands of dollars. While a robust truck, its sheer size and complexity make it costly to own and operate, best suited for businesses where its capabilities translate directly into revenue.
2015 Mack GU813 Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2015 Mack GU813 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
2015 Mack GU813 Insurance
Insurance for a 2015 Mack GU813 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2015 Mack GU813 Compare to Other Truck?
The 2015 Mack GU813 operates in the highly competitive vocational heavy-duty truck segment. Its primary rivals include vehicles like the Peterbilt 367/384 series, Kenworth T800/T880, International WorkStar, and Freightliner M2/SD series.
Performance: In terms of raw performance, the GU813 with its Mack MP engines often competes head-to-head with similar offerings from PACCAR (Peterbilt, Kenworth) and Navistar (International). Mack is known for robust powertrains that deliver strong torque for demanding vocational tasks.
Features: Feature sets are application-driven rather than trim-based. In 2015, all these manufacturers offered comparable levels of basic functionality regarding cabs, instrumentation, and chassis configurations. Advanced technology was minimal across the board, with safety systems like ABS being the primary focus. The GU813's durability and the availability of Mack's own powertrain components are key differentiators.
Reliability: Mack has a long-standing reputation for reliability and durability in severe service, often considered on par with or slightly behind Kenworth and Peterbilt, which are also highly regarded. International and Freightliner also offer reliable trucks, but Mack often appeals to those who value its specific engineering and robust build quality.
Price: Pricing for comparable vocational trucks from these manufacturers tends to be in a similar range when new, often fluctuating based on dealer incentives and specific configurations. On the used market, condition and vocational upfit are the biggest price drivers.
Alternatives:
Performance: In terms of raw performance, the GU813 with its Mack MP engines often competes head-to-head with similar offerings from PACCAR (Peterbilt, Kenworth) and Navistar (International). Mack is known for robust powertrains that deliver strong torque for demanding vocational tasks.
Features: Feature sets are application-driven rather than trim-based. In 2015, all these manufacturers offered comparable levels of basic functionality regarding cabs, instrumentation, and chassis configurations. Advanced technology was minimal across the board, with safety systems like ABS being the primary focus. The GU813's durability and the availability of Mack's own powertrain components are key differentiators.
Reliability: Mack has a long-standing reputation for reliability and durability in severe service, often considered on par with or slightly behind Kenworth and Peterbilt, which are also highly regarded. International and Freightliner also offer reliable trucks, but Mack often appeals to those who value its specific engineering and robust build quality.
Price: Pricing for comparable vocational trucks from these manufacturers tends to be in a similar range when new, often fluctuating based on dealer incentives and specific configurations. On the used market, condition and vocational upfit are the biggest price drivers.
Alternatives:
- Similar Alternatives: Peterbilt 367/384, Kenworth T800/T880, International WorkStar. These offer comparable strength, durability, and vocational capability.
- Potentially Better Alternatives (depending on specific needs): For certain applications, a Freightliner M2 or SD series truck might offer a slightly different balance of features, potentially with a more modern feel in some aspects or different service network advantages. However, for a no-nonsense, tough vocational truck, the GU813 is a solid choice. The decision often comes down to brand loyalty, dealer support, specific powertrain preferences, and the availability of desired upfits.
Final Verdict: Is the 2015 Mack GU813 a Good Truck?
The 2015 Mack GU813 is ideal for businesses and owner-operators requiring a robust, no-nonsense vocational truck for demanding applications such as construction, refuse collection, or specialized heavy hauling. It's a workhorse built for endurance and reliability, not for speed or luxury.
It is absolutely worth buying for those who prioritize longevity and raw capability, especially on the used market where its initial depreciation has already occurred. New purchases are rare for this specific older model year.
Buying this truck is best under the condition that it has a documented history of meticulous maintenance. A thorough pre-purchase inspection by a qualified heavy-duty mechanic is essential, focusing on the engine, transmission, emissions system, and chassis integrity. Specific trims are less relevant than the overall configuration and the quality of the vocational upfit. For its intended purpose, the 2015 GU813 remains a strong contender if well-maintained.
It is absolutely worth buying for those who prioritize longevity and raw capability, especially on the used market where its initial depreciation has already occurred. New purchases are rare for this specific older model year.
Buying this truck is best under the condition that it has a documented history of meticulous maintenance. A thorough pre-purchase inspection by a qualified heavy-duty mechanic is essential, focusing on the engine, transmission, emissions system, and chassis integrity. Specific trims are less relevant than the overall configuration and the quality of the vocational upfit. For its intended purpose, the 2015 GU813 remains a strong contender if well-maintained.
Eugene S
Eugene is an automotive enthusiast with over 15 years of experience in the used car market. As a writer at VINCheck.info, he brings deep industry insight and a passion for cars, helping readers make smart, informed decisions. Eugene has written hundreds of used car reviews and is known for breaking down complex automotive topics into clear, actionable advice. Over the years, he has driven and worked on a wide range of vehicles—starting with tuning street cars in his early days and eventually focusing on performance upgrades and reliability improvements. Today, he specializes in evaluating used vehicles through the lens of real-world ownership and enthusiast needs. A longtime fan of Porsche, Eugene especially appreciates vehicles that blend durability with driving enjoyment.