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1991 Oshkosh Mid Overview, Reviews, Ratings & Specs

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Drew B | December 22, 2025
The 1991 Oshkosh Mid is a specialized commercial vehicle, not a typical passenger car. Oshkosh Corporation is renowned for its heavy-duty trucks and specialized vehicles used in various industries, including firefighting, airport operations, and military applications. The 'Mid' designation likely refers to a specific series or configuration within their product line, often characterized by robust construction and utilitarian design. Specific model years for a 'Mid' designation within the general Oshkosh lineup are less defined than consumer vehicles, and trims are highly customizable based on intended use. Pricing would vary dramatically based on configuration, starting significantly higher than consumer vehicles.
The Good

The 1991 Oshkosh Mid excels in raw capability and unwavering reliability for demanding tasks. Its rugged design inspires confidence in extreme conditions, while its straightforward engineering prioritizes long-term serviceability, appealing to those who value dependable performance and low operational risk.

The Bad

Potential weaknesses for a 1991 Oshkosh Mid often lie in its utilitarian design, which can translate to a spartan interior and basic creature comforts. Fuel efficiency may be a concern given its heavy-duty nature, and specialized maintenance or parts could be harder to source than for mass-produced vehicles.

1991 Oshkosh Mid: Quick Overview

Given the nature of Oshkosh vehicles, a '1991 Oshkosh Mid' is likely a highly customizable platform, and specific, standardized specs like those for a consumer car are difficult to provide. However, based on typical Oshkosh offerings from that era, we can infer likely specifications:

  • Engine Options: Oshkosh vehicles of this era commonly utilized powerful diesel engines from manufacturers like Cummins, Caterpillar, or Detroit Diesel. These were chosen for their torque, durability, and suitability for heavy-duty applications. Specific displacement and configurations would vary widely based on the intended use of the 'Mid' model.
  • Horsepower: Horsepower ratings for these diesel engines would typically range from approximately 200 horsepower to well over 400 horsepower, depending on the engine model and application. The focus is on torque for pulling power rather than outright speed.
  • Fuel Economy: Fuel economy is generally not a primary design consideration for Oshkosh vehicles. Expect figures significantly lower than passenger vehicles, likely in the range of 5-10 miles per gallon, heavily influenced by load, terrain, and operating conditions.
  • 0-60 Times: 0-60 mph acceleration times are not applicable or measurable for this type of vehicle in the traditional sense. These trucks are built for work, not for rapid acceleration.
  • Towing Capacity: Towing capacity is a core function for many Oshkosh vehicles. Depending on the specific 'Mid' configuration, chassis, drivetrain, and suspension, towing capacities could range from tens of thousands of pounds to well over 100,000 pounds for specialized heavy haulers.
  • Trim-Level Features: 'Trims' in the conventional automotive sense do not apply. Instead, 'features' are highly specialized and application-driven. This could include:
    • Advanced braking systems (air brakes)
    • Heavy-duty suspension components
    • Specialized chassis configurations (e.g., 4x4, 6x6)
    • Custom bodywork and equipment mounting points
    • Hydraulic systems for specialized equipment
    • Heavy-duty electrical systems for auxiliary power
    • Operator-focused cabins with robust controls and instrumentation
    • Safety features tailored to the intended operational environment (e.g., emergency lighting, warning systems).

1991 Oshkosh Mid Specifications

Vehicle Information
Year 1991
Make Oshkosh
Model Mid
Trim -
Style -
Type Truck
Category Medium Truck
Manufacturing Details
Made In United States
Manufacturing City -
Dimensions
Doors -
Curb Weight -
Gross Vehicle Weight Rating 19500 pounds
Overall Height -
Overall Length -
Overall Width -
Wheelbase Length -
Standard Seating -
Engine & Performance
Engine 7.5L V8
Engine Size 7.5L
Engine Cylinders 8
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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Analysis

What Problems Does the 1991 Oshkosh Mid Have?

Detailed reports of 'frequently reported problems' or recalls for a specific '1991 Oshkosh Mid' model are not readily available in the same way they are for consumer vehicles. Oshkosh vehicles are built to exceptionally high durability standards for specific, often demanding, commercial and industrial applications. However, general concerns with heavy-duty vehicles of this era, and Oshkosh trucks in particular, can include:

  • Powertrain Wear: While designed for longevity, high-mileage diesel engines and transmissions will eventually require significant overhauls or replacements. This is a function of use rather than inherent design flaws.
  • Hydraulic System Leaks: If the vehicle is equipped with hydraulic systems for specialized equipment (e.g., cranes, lifts), seals and hoses can degrade over time, leading to leaks. Regular maintenance is crucial to prevent this.
  • Electrical System Issues: Older electrical systems, especially those with complex wiring for specialized equipment, can develop corrosion, loose connections, or component failures. Troubleshooting can be more involved than in modern vehicles.
  • Suspension and Axle Wear: Constant heavy loads and rough terrain can lead to wear on suspension components, bushings, and axles. Regular inspections and lubrication are key.
  • Corrosion: Depending on the operating environment (e.g., coastal, industrial), rust and corrosion can affect the chassis, body panels, and undercarriage. Regular cleaning and protective coatings are important.
  • Availability of Specialized Parts: While Oshkosh is a reputable manufacturer, sourcing certain specialized parts for a 1991 model might require direct contact with the manufacturer or specialized dealers, and lead times could be longer than for common automotive parts.

Recalls for Oshkosh vehicles are typically issue-specific and often relate to safety concerns that arise during rigorous testing or after a certain period of operation. Without a specific model designation within the 'Mid' series, it's impossible to pinpoint model-year specific issues or recalls. Long-term reliability is generally excellent if the vehicle has been maintained according to its specific service schedule and used within its designed parameters.

How long will the 1991 Oshkosh Mid last?

Estimating average mileage or years of service for a 1991 Oshkosh Mid is highly dependent on its intended application. These vehicles are often built for hundreds of thousands of miles, and in some cases, over a million miles of service if properly maintained. For example, a fire truck might log fewer miles but operate extensively, while a heavy hauler might rack up significant mileage over its working life.

Long-term durability is a hallmark of Oshkosh vehicles. Their robust construction and heavy-duty components are designed to withstand significant stress. Weaknesses that emerge over time are usually related to the cumulative effects of extreme use, environmental exposure, and the eventual wear of components like seals, bushings, and electrical connectors. However, the core chassis, engine block, and transmission are typically built for extremely long service lives. Regular, diligent maintenance is the single most critical factor in realizing this long-term potential.

What Technology & Safety Features are Included?

The 1991 Oshkosh Mid, as a specialized commercial vehicle, will have a drastically different technological profile compared to a contemporary passenger car. Its focus is squarely on functionality, durability, and operational safety rather than driver convenience or entertainment.

Built-in Tech & Entertainment: Expect a very rudimentary setup. Entertainment systems would likely be limited to an AM/FM radio, possibly with a cassette player. Digital displays and advanced infotainment were not priorities. The 'tech' is primarily focused on vehicle operation and diagnostics, with a robust set of gauges and warning lights for engine status, oil pressure, temperature, air brake pressure, and fluid levels.

Driver-Assistance Features: Driver-assistance features as we understand them today (lane keeping assist, adaptive cruise control, blind-spot monitoring) would be virtually non-existent. The primary 'assistance' comes from the vehicle's inherent design for its intended purpose. This could include features like:
  • Power steering for easier maneuverability, especially when loaded.
  • Advanced braking systems (e.g., air brakes) designed for heavy loads and quick stopping.
  • Heavy-duty mirrors for excellent all-around visibility.
  • Optional auxiliary lighting for enhanced visibility in poor conditions or at night.

Safety Features: Safety is paramount in Oshkosh vehicles, but it's approached from an industrial and operational standpoint. Standard safety features would include:
  • Robust seatbelts.
  • Heavy-duty construction designed to protect occupants in operational incidents.
  • Emergency braking systems.
  • Warning lights and audible alarms for critical system failures.
  • Fire suppression systems might be optional or standard depending on the specific application (e.g., airport firefighting).

Optional Features: Options would be highly application-specific, such as:
  • Integrated work lights.
  • Specialized communication equipment mounting.
  • Upgraded suspension for specific terrains.
  • Enhanced climate control systems for extreme environments.

Crash-Test Ratings: Oshkosh vehicles are not typically subjected to the same consumer-focused crash-test ratings (like NHTSA or IIHS) as passenger cars. Their safety is evaluated based on industry standards relevant to their operational environment and intended use, often under specific certifications for commercial or military applications.

What Colors Options are Available?

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1991 Oshkosh Mid Prices and Market Value

When new, a 1991 Oshkosh Mid would have commanded a significant price, ranging from tens of thousands to potentially hundreds of thousands of dollars, depending on its specific configuration, equipment, and intended application (e.g., a basic chassis versus a fully outfitted fire truck). These are not mass-produced consumer goods; they are specialized tools for industry.

Current used market prices are highly variable. A well-maintained unit in good working order, especially for a specialized niche application, can still hold substantial value. Conversely, a heavily used or deteriorated example might be sold for scrap value or for parts. Depreciation is not a linear concept for these vehicles. Early depreciation is steep, as the specialized equipment is factored in. However, well-built Oshkosh vehicles can have a long service life, and their resale value is dictated more by their operational capability and condition than by age alone. Factors affecting resale include the condition of the engine and drivetrain, the functionality of specialized equipment, overall structural integrity, and demand within specific industries.

1991 Oshkosh Mid Cost of Ownership

Owning a 1991 Oshkosh Mid is generally considered costly, especially compared to passenger vehicles. Insurance will be specialized and likely expensive, reflecting the vehicle's value and risk profile. Fuel costs will be high due to large diesel engines and poor fuel economy. Maintenance and repairs are also significant; while built robustly, their complexity and specialized nature mean parts and labor can be costly. Expect substantial outlays for routine servicing, potential component failures, and any specialized equipment upkeep. This vehicle is economical only in the context of its specific, heavy-duty operational purpose where its reliability and capability justify the expense.

1991 Oshkosh Mid Fuel Efficiency

Fuel Type Gasoline (Efi)
Fuel Capacity -
City Mileage -
Highway Mileage -

1991 Oshkosh Mid 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

1991 Oshkosh Mid Insurance

Insurance for a 1991 Oshkosh Mid is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.

How Does the 1991 Oshkosh Mid Compare to Other Truck?

Directly 'stacking' the 1991 Oshkosh Mid against direct 'rivals in its class' is challenging without knowing its precise intended function. Oshkosh vehicles often operate in niche markets where competition is limited and highly specialized. For example, if the 'Mid' is a fire apparatus chassis, its rivals would be other fire apparatus manufacturers like Pierce, Ferrara, or E-One. If it's a heavy-duty work truck for construction or mining, it might compete with offerings from Caterpillar, Komatsu, or other heavy equipment manufacturers.

Performance: In its intended role, the Oshkosh Mid would likely offer superior off-road capability, towing power, or payload capacity compared to general commercial trucks. Its performance is tailored for demanding environments.
Features: Features are dictated by application. An Oshkosh might offer specialized hydraulic systems, heavy-duty axles, or unique body configurations not found on standard trucks.
Reliability: Oshkosh has a strong reputation for reliability in harsh conditions. While all heavy machinery requires maintenance, their build quality is generally considered very high for their target markets.
Price: New Oshkosh vehicles are expensive due to their specialized engineering and manufacturing. Used prices vary wildly based on condition and application.

Alternatives:
  • For Fire Apparatus: Pierce, Ferrara, E-One, Spartan ERV. These brands offer similar levels of customization and robust construction for firefighting applications.
  • For Heavy-Duty Work/Off-Road: Depending on the specific need, alternatives could include specialized trucks from manufacturers like Peterbilt, Kenworth (for vocational trucks), or even heavy equipment manufacturers if the application leans towards earthmoving or construction machinery.

It's difficult to recommend a 'better' alternative without a clearer understanding of the 'Mid's' specific role. If the goal is extreme durability and specialized function, Oshkosh is often a top-tier choice. If the need is more general, less specialized commercial transport, then standard heavy-duty truck manufacturers would be more appropriate and potentially more cost-effective.

Final Verdict: Is the 1991 Oshkosh Mid a Good Truck?

The 1991 Oshkosh Mid is ideal for businesses or municipalities requiring a highly durable, specialized vehicle for demanding operational tasks such as firefighting, heavy hauling, or specialized industrial work. It is **not** suitable for individuals seeking a daily driver or general transportation due to its utilitarian nature, high operating costs, and lack of comfort features.

Whether it's worth buying depends entirely on the buyer's specific needs and resources. If you require the robust capabilities that only Oshkosh can provide for a specific application, and you have the budget for its acquisition and ongoing maintenance, then it can be a worthwhile investment. A used model, if thoroughly inspected and in good working order, can offer significant value for a specific purpose. Purchasing one without a clear, defined use case would be financially unwise. It is a tool, not a toy.

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Drew B

Drew is a seasoned automotive expert and contributor to VinCheck.info. With nearly 15 years of experience as a former Porsche technician, he brings a wealth of hands-on knowledge to his writing. Born in North Carolina, a region renowned for its deep-rooted NASCAR culture, Drew developed a passion for cars early in life, often building and working on vehicles from a young age. At VINCheck, Drew leverages his extensive technical background to provide in-depth analyses of various vehicles. His articles often focus on engine performance, reliability, and maintenance insights, offering readers practical information grounded in real-world experience. Some of his notable contributions include reviews on the Mazda CX-5's longevity and detailed examinations of engine options for models like the 2011 Toyota Camry and Tacoma