The 2007 Mack MR688S is a robust vocational truck known for its heavy-duty capabilities. Primarily produced as a chassis cab, it served various applications including refuse collection and construction. While specific model years are less about distinct generations and more about ongoing production, the MR series has been a staple in the commercial vehicle market. Its popularity stems from its legendary durability, powerful engine options, and customizable configurations, making it a workhorse trusted by businesses for demanding tasks. Pricing for a used 2007 model can vary significantly based on condition and specifications, typically ranging from $20,000 to $60,000.
The Good
The 2007 Mack MR688S excels in raw performance and unwavering reliability, built to withstand the toughest jobs. Its rugged design inspires confidence, while the powerful engine options provide ample grunt for demanding applications. This truck offers a practical, no-nonsense approach to business needs, translating to strong long-term value and emotional satisfaction for owners who rely on its dependable service.
The Bad
Potential weaknesses for the 2007 Mack MR688S often revolve around its age and intended use. Owners should be mindful of potential wear and tear on heavy-duty components, particularly the drivetrain and suspension systems. Fuel efficiency, while not a primary concern for this class of truck, can be a drawback. Advanced technology and creature comforts are also minimal compared to modern vehicles.
2007 Mack MR688S: Quick Overview
- Engine Options: The 2007 Mack MR688S was typically offered with powerful diesel engines, most commonly the Mack MP7 and MP8 series. These are robust, in-line 6-cylinder engines designed for heavy-duty commercial applications.
- Horsepower: Horsepower ratings varied depending on the specific engine chosen and the vocational application. The Mack MP7 engines often ranged from approximately 275 to 325 horsepower, while the larger MP8 engines could deliver from 380 to over 500 horsepower.
- Fuel Economy: Fuel economy is not a primary design consideration for trucks of this class and intended use. Expect very low MPG figures, generally in the single digits (e.g., 4-7 MPG), heavily dependent on load, terrain, and driving style.
- 0-60 Times: 0-60 mph times are not applicable or tracked for vehicles like the Mack MR688S, as their performance is measured in terms of hauling capacity, torque, and operational efficiency under load, not acceleration.
- Towing Capacity: The towing capacity is highly dependent on the specific chassis configuration, axle ratings, and the body or equipment fitted to the truck. These trucks are designed for heavy hauling and can typically handle Gross Combination Weight Ratings (GCWR) well into the tens of thousands of pounds, often exceeding 80,000 lbs or more in specialized configurations.
- Trim-Level Features: As a heavy-duty vocational truck, the MR688S did not have traditional 'trim levels' in the passenger vehicle sense. Features were largely dictated by the vocational body chosen and optional equipment selected by the fleet owner or operator. Common configurations included features essential for its intended purpose, such as robust chassis components, specific suspension systems for heavy loads, durable interiors designed for frequent use, and specialized PTO (Power Take-Off) options for auxiliary equipment like hydraulic pumps for dump bodies or refuse collection mechanisms. Cab options might include standard day cabs or configurations for specific operational needs.
2007 Mack MR688S Specifications
Vehicle Information
| Year | 2007 |
| Make | Mack |
| Model | MR688S |
| 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 | 12L I6 |
| Engine Size | 12L |
| 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 2007 Mack MR688S Have?
For a 2007 Mack MR688S, being a heavy-duty vocational truck, reported problems and long-term reliability concerns often stem from the demanding nature of its work rather than inherent design flaws. While Mack trucks are generally known for their durability, components subject to extreme stress will eventually show wear. Common areas to watch for include:
Drivetrain: Issues such as clutch wear, transmission problems (especially with heavy loads or frequent shifting), and differential wear can occur over time. Torque converter issues might also be reported on automatic transmissions.
Engine: While Mack MP7 and MP8 engines are robust, regular maintenance is crucial. Problems can arise from issues related to fuel injection systems, turbochargers, and cooling systems if not properly maintained. EGR (Exhaust Gas Recirculation) system issues and DPF (Diesel Particulate Filter) clogs can be more prevalent on newer models with emissions controls, but a 2007 might still experience related issues if poorly maintained or driven predominantly in low-speed, high-idle applications.
Suspension and Brakes: Given the heavy loads, wear on leaf springs, bushings, shocks, and brake components (pads, rotors, air system) is expected. Air brake system leaks are a common concern across all heavy trucks of this era.
Electrical Systems: As these trucks age, electrical gremlins can surface, including issues with wiring harnesses, sensors, and control modules. Battery and alternator failures are also common maintenance items.
Hydraulics: For trucks equipped with hydraulic systems (e.g., for dump bodies, liftgates, or refuse collection), hydraulic pump failures, leaks, and cylinder issues are possible.
Cab and Chassis: Rust and corrosion, especially in areas exposed to salt or harsh weather, can affect the frame, body panels, and cab. Door hinges, seals, and interior wear are also typical.
Recalls for specific model years can occur, but these are typically related to safety or emissions compliance. It is essential to check for any outstanding recalls with Mack Trucks using the VIN. Long-term reliability is highly dependent on the owner's commitment to preventative maintenance, regular inspections, and prompt repair of minor issues before they escalate. For a 2007 model, the overall condition and maintenance history are more critical indicators of future reliability than specific model year known issues.
Drivetrain: Issues such as clutch wear, transmission problems (especially with heavy loads or frequent shifting), and differential wear can occur over time. Torque converter issues might also be reported on automatic transmissions.
Engine: While Mack MP7 and MP8 engines are robust, regular maintenance is crucial. Problems can arise from issues related to fuel injection systems, turbochargers, and cooling systems if not properly maintained. EGR (Exhaust Gas Recirculation) system issues and DPF (Diesel Particulate Filter) clogs can be more prevalent on newer models with emissions controls, but a 2007 might still experience related issues if poorly maintained or driven predominantly in low-speed, high-idle applications.
Suspension and Brakes: Given the heavy loads, wear on leaf springs, bushings, shocks, and brake components (pads, rotors, air system) is expected. Air brake system leaks are a common concern across all heavy trucks of this era.
Electrical Systems: As these trucks age, electrical gremlins can surface, including issues with wiring harnesses, sensors, and control modules. Battery and alternator failures are also common maintenance items.
Hydraulics: For trucks equipped with hydraulic systems (e.g., for dump bodies, liftgates, or refuse collection), hydraulic pump failures, leaks, and cylinder issues are possible.
Cab and Chassis: Rust and corrosion, especially in areas exposed to salt or harsh weather, can affect the frame, body panels, and cab. Door hinges, seals, and interior wear are also typical.
Recalls for specific model years can occur, but these are typically related to safety or emissions compliance. It is essential to check for any outstanding recalls with Mack Trucks using the VIN. Long-term reliability is highly dependent on the owner's commitment to preventative maintenance, regular inspections, and prompt repair of minor issues before they escalate. For a 2007 model, the overall condition and maintenance history are more critical indicators of future reliability than specific model year known issues.
How long will the 2007 Mack MR688S last?
The 2007 Mack MR688S is built for longevity, and with diligent maintenance, these trucks can easily surpass 500,000 miles, with many operational units exceeding 750,000 to even 1 million miles in commercial service. These vehicles are designed for a service life of 10-15 years, or more, depending on application and maintenance. Long-term durability is a hallmark, with their heavy-duty chassis and robust powertrain capable of withstanding immense stress. However, over time, wear and tear on components like the drivetrain, suspension, and cooling system become more pronounced. Regular, high-quality maintenance is paramount; neglected trucks will show significant weaknesses in these areas much sooner. Essentially, these trucks are built to last, but they require continuous care to realize their full potential service life.
What Technology & Safety Features are Included?
The 2007 Mack MR688S, being a work-focused vocational truck from that era, prioritizes functionality and durability over advanced technology and creature comforts. Built-in technology is generally very basic and centered around operational needs.
Technology & Entertainment: Expect a simple AM/FM radio, possibly with a CD player as an optional upgrade. Digital displays are limited to essential vehicle information like speed, engine RPM, fuel level, and basic diagnostics. Integrated navigation or infotainment systems are not standard and would have been rare aftermarket additions.
Driver-Assistance Features: Advanced driver-assistance systems (ADAS) as we know them today were virtually non-existent in 2007 heavy-duty vocational trucks. Features like adaptive cruise control, lane departure warning, or automatic emergency braking were not available.
Safety Features: Standard safety features would include robust seatbelts, hydraulic disc brakes (often with ABS as a standard or optional feature), and powerful exterior lighting. The sturdy construction of the Mack cab itself provides a significant level of passive safety. Air brakes are a critical safety system requiring proper maintenance.
Optional Features: Optional equipment would have been dictated by the specific vocational use. This could include things like engine block heaters for cold climates, auxiliary lighting, various PTO systems for operating auxiliary equipment, and potentially upgraded interior materials for durability.
Crash-Test Ratings: Heavy-duty commercial trucks like the Mack MR688S are not subjected to the same type of crash testing by organizations like the NHTSA or IIHS as passenger vehicles. Their safety is assessed through different regulatory frameworks, focusing on structural integrity under load, braking performance, and compliance with commercial vehicle safety standards. The primary safety considerations for these trucks are their robust build quality and the operational safety systems they are equipped with, such as their braking and lighting.
Technology & Entertainment: Expect a simple AM/FM radio, possibly with a CD player as an optional upgrade. Digital displays are limited to essential vehicle information like speed, engine RPM, fuel level, and basic diagnostics. Integrated navigation or infotainment systems are not standard and would have been rare aftermarket additions.
Driver-Assistance Features: Advanced driver-assistance systems (ADAS) as we know them today were virtually non-existent in 2007 heavy-duty vocational trucks. Features like adaptive cruise control, lane departure warning, or automatic emergency braking were not available.
Safety Features: Standard safety features would include robust seatbelts, hydraulic disc brakes (often with ABS as a standard or optional feature), and powerful exterior lighting. The sturdy construction of the Mack cab itself provides a significant level of passive safety. Air brakes are a critical safety system requiring proper maintenance.
Optional Features: Optional equipment would have been dictated by the specific vocational use. This could include things like engine block heaters for cold climates, auxiliary lighting, various PTO systems for operating auxiliary equipment, and potentially upgraded interior materials for durability.
Crash-Test Ratings: Heavy-duty commercial trucks like the Mack MR688S are not subjected to the same type of crash testing by organizations like the NHTSA or IIHS as passenger vehicles. Their safety is assessed through different regulatory frameworks, focusing on structural integrity under load, braking performance, and compliance with commercial vehicle safety standards. The primary safety considerations for these trucks are their robust build quality and the operational safety systems they are equipped with, such as their braking and lighting.
What Colors Options are Available?
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2007 Mack MR688S Prices and Market Value
When new, a 2007 Mack MR688S could have commanded a price ranging from approximately $80,000 to $150,000 or more, depending heavily on the specific configuration, engine choice, and vocational body installed. Depreciation on heavy-duty trucks is significant, but they tend to hold their value better than passenger cars if well-maintained and still capable of performing their intended work. Current used market prices for a 2007 Mack MR688S typically range from $20,000 to $60,000, with well-maintained examples in good working order at the higher end. Factors affecting resale value include mileage, overall condition, maintenance history, tire wear, and the presence of desirable vocational equipment. Trucks with specialized bodies (e.g., functional refuse bodies) may fetch higher prices than bare chassis cabs.
2007 Mack MR688S Cost of Ownership
Owning a 2007 Mack MR688S is generally considered costly, driven by its heavy-duty nature. Insurance premiums will be higher than for lighter vehicles, reflecting the truck's value and operational risks. Fuel costs are substantial due to poor MPG, often in the single digits, making it uneconomical for light use. Maintenance and repair costs are significant; while durable, components are expensive to replace when worn. Regular preventative maintenance is crucial to avoid even more costly repairs. Overall, this truck is an operational expense for businesses where its capabilities are essential, not an economical personal vehicle.
2007 Mack MR688S Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2007 Mack MR688S 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
2007 Mack MR688S Insurance
Insurance for a 2007 Mack MR688S is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2007 Mack MR688S Compare to Other Truck?
The 2007 Mack MR688S competed in the demanding vocational truck segment against formidable rivals such as Freightliner M2, Peterbilt Model 320, and Kenworth T-Series (specifically models designed for vocational use like the T300/T800).
Performance: In terms of raw performance, the Mack MR688S, often equipped with Mack's own MP7 or MP8 engines, delivered exceptional torque and pulling power, making it a strong contender. Its performance was geared towards heavy hauling and demanding duty cycles, similar to its peers. Competitors like Freightliner and Peterbilt also offered powerful engine options and robust chassis designs capable of handling similar workloads.
Features: Features were always application-driven rather than luxurious. All these trucks offered basic but durable interiors, focused on functionality. Driver-assistance tech was minimal across the board in 2007. Safety features like ABS were becoming more common. The Mack MR688S's advantage often lay in its straightforward, rugged engineering, which could be appealing for ease of maintenance.
Reliability: Mack has a long-standing reputation for reliability and durability in heavy-duty applications, and the MR688S generally upholds this. Competitors like Peterbilt and Kenworth also boast excellent reliability records, often considered top-tier. Freightliner is also a strong player, though sometimes perceived as having slightly less rugged construction in certain vocational segments compared to the traditional heavyweights like Mack and Kenworth.
Price: When new, prices were generally comparable across these premium vocational truck brands, with variations dependent on specifications. In the used market today, all these trucks from 2007 will have depreciated significantly. The resale value is heavily influenced by condition, mileage, and specific vocational equipment. For those seeking a similar alternative that might offer slightly different strengths, a used Peterbilt Model 320 is a direct competitor known for its maneuverability in refuse applications, while a Kenworth T800 is a versatile option for various heavy-duty tasks. A Freightliner M2 series truck might offer a slightly more modern feel or potentially a wider dealer network in some regions.
Ultimately, the choice often came down to brand loyalty, dealer support, specific application requirements, and the best available deal on a well-maintained unit. The 2007 Mack MR688S remains a solid choice for its intended purpose.
Performance: In terms of raw performance, the Mack MR688S, often equipped with Mack's own MP7 or MP8 engines, delivered exceptional torque and pulling power, making it a strong contender. Its performance was geared towards heavy hauling and demanding duty cycles, similar to its peers. Competitors like Freightliner and Peterbilt also offered powerful engine options and robust chassis designs capable of handling similar workloads.
Features: Features were always application-driven rather than luxurious. All these trucks offered basic but durable interiors, focused on functionality. Driver-assistance tech was minimal across the board in 2007. Safety features like ABS were becoming more common. The Mack MR688S's advantage often lay in its straightforward, rugged engineering, which could be appealing for ease of maintenance.
Reliability: Mack has a long-standing reputation for reliability and durability in heavy-duty applications, and the MR688S generally upholds this. Competitors like Peterbilt and Kenworth also boast excellent reliability records, often considered top-tier. Freightliner is also a strong player, though sometimes perceived as having slightly less rugged construction in certain vocational segments compared to the traditional heavyweights like Mack and Kenworth.
Price: When new, prices were generally comparable across these premium vocational truck brands, with variations dependent on specifications. In the used market today, all these trucks from 2007 will have depreciated significantly. The resale value is heavily influenced by condition, mileage, and specific vocational equipment. For those seeking a similar alternative that might offer slightly different strengths, a used Peterbilt Model 320 is a direct competitor known for its maneuverability in refuse applications, while a Kenworth T800 is a versatile option for various heavy-duty tasks. A Freightliner M2 series truck might offer a slightly more modern feel or potentially a wider dealer network in some regions.
Ultimately, the choice often came down to brand loyalty, dealer support, specific application requirements, and the best available deal on a well-maintained unit. The 2007 Mack MR688S remains a solid choice for its intended purpose.
Final Verdict: Is the 2007 Mack MR688S a Good Truck?
The 2007 Mack MR688S is ideal for businesses and owner-operators requiring a dependable, heavy-duty truck for demanding vocational applications like waste management, construction, or heavy hauling. It is a workhorse built for ruggedness and longevity, not luxury. Buying this truck is worth considering if its specific capabilities are essential for your operations and if you prioritize robust construction and a proven track record. It is overwhelmingly a used vehicle purchase at this point. Focus on models with comprehensive maintenance records and fewer operational hours. Avoid if your needs are light-duty or if you expect modern technology and high fuel efficiency. Well-maintained examples offer significant value for their intended purpose.
Simon A
Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.