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2002 Workhorse P42 Overview, Reviews, Ratings & Specs

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Simon A | October 2, 2025

The 2002 Workhorse P42 is a medium-duty truck chassis, commonly used for step vans, delivery vehicles, and shuttle buses. Produced by Workhorse Custom Chassis, a subsidiary of Navistar International, it was part of a lineage of chassis designed for commercial applications. While specific trims and pricing varied greatly depending on the upfitter and configuration, the P42's popularity stemmed from its robust construction and adaptability for various vocational needs. Its model years typically spanned the early 2000s.

The Good

The 2002 Workhorse P42 offers a dependable and utilitarian platform, favored for its sturdy build and straightforward functionality. Its practical advantages lie in its robust chassis and adaptability for various commercial uses, providing a reliable workhorse for businesses. While not built for luxury, its functional design prioritizes durability and ease of maintenance, appealing to those seeking a cost-effective and dependable operational vehicle.

The Bad

Potential buyers of the 2002 Workhorse P42 should be aware of common issues related to its older age. This includes potential wear and tear on the powertrain, suspension components, and electrical systems. Rust, especially in humid climates, can be a significant concern. Regular maintenance records are crucial, as neglected upkeep can lead to more substantial and costly repairs.

2002 Workhorse P42: Quick Overview

  • Engine Options: The 2002 Workhorse P42 was typically offered with a choice of gasoline or diesel engines. A common gasoline option was the General Motors Vortec V8, such as the 5.7L or 6.0L. Diesel options often included engines from manufacturers like Cummins, with configurations like the 5.9L ISB common in heavier duty applications.

  • Horsepower: Horsepower varied significantly based on the engine and its tuning. Gasoline Vortec V8 engines typically produced between 200 to 300 horsepower. Diesel engines, like the Cummins 5.9L ISB, could range from approximately 200 to 275 horsepower, with torque being a more significant factor for its intended use.

  • Fuel Economy: Fuel economy for the 2002 Workhorse P42 is generally poor by passenger car standards, as expected for a commercial vehicle. Gasoline variants might achieve figures in the range of 8-12 miles per gallon (MPG) depending on the load and driving conditions. Diesel variants could offer slightly better efficiency, perhaps in the 10-15 MPG range, especially when driven at consistent speeds.

  • 0-60 Times: Official 0-60 mph times are not typically published for Workhorse P42 chassis as they are not designed for performance acceleration. Loaded configurations would have significantly slower acceleration, likely well over 20 seconds. Unloaded, with a smaller engine, it might be closer to 15-20 seconds, but this was never a primary consideration for this vehicle.

  • Towing Capacity: Towing capacity is highly dependent on the specific configuration, chassis rating, and the body installed. As a chassis, it was designed to carry substantial weight in the form of its mounted body and its payload. Gross Vehicle Weight Ratings (GVWR) could range from around 10,000 lbs to over 25,000 lbs. Tongue weight and trailer weight would be dictated by the chassis's capabilities and the installed hitch system, but generally, these vehicles are capable of towing significant loads when properly equipped.

  • Trim-Level Features: As a chassis, the P42 did not have traditional trim levels like passenger vehicles. Instead, features were determined by the upfitter and the specific vocational application. However, standard components would include a robust frame, commercial-grade suspension, brakes, and steering. Available options could include different transmission types (e.g., automatic), power steering, air conditioning (often optional), and basic instrument clusters. The focus was on durability and functionality for commercial use rather than creature comforts.

2002 Workhorse P42 Specifications

Vehicle Information
Year 2002
Make Workhorse
Model P42
Trim -
Style -
Type Bus
Category P42 "P" Special Purpose Vehicle Chassis
Manufacturing Details
Made In United States
Manufacturing City UNION CITY
Dimensions
Doors -
Curb Weight -
Gross Vehicle Weight Rating 16000 pounds
Overall Height -
Overall Length -
Overall Width -
Wheelbase Length -
Standard Seating -
Engine & Performance
Engine 5.7-L V-8
Engine Size 5.7L
Engine Cylinders 8
Transmission -
Transmission Type -
Transmission Speeds -
Drivetrain Rear-Wheel Drive
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 2002 Workhorse P42 Have?

The 2002 Workhorse P42, being a commercial chassis primarily used for heavy-duty applications like step vans and shuttle buses, can exhibit certain common issues over time. Due to its age and intended use, powertrain components are a frequent area of concern. The gasoline engines, particularly the GM Vortec V8s, can experience issues like intake manifold gasket leaks, which can lead to coolant loss and engine overheating if not addressed promptly. Spark plug blow-out, where spark plugs can become loose or ejected from the cylinder head, is another known problem for some GM V8s of this era, often requiring specialized repair or thread repair kits.


Diesel engines, while generally robust, can also present issues. Fuel injection system problems, EGR (Exhaust Gas Recirculation) system failures, and turbocharger wear are not uncommon, especially on higher-mileage units. Transmission issues, whether automatic or manual, can arise from heavy use, particularly if fluid changes and maintenance have been neglected. Overheating can be a problem if the cooling system is not properly maintained, leading to premature component failure.


Suspension and braking systems, subjected to constant stress and heavy loads, are also susceptible to wear. Worn ball joints, tie rod ends, and brake components (rotors, pads, calipers) are expected maintenance items. Rust and corrosion, especially on the frame and undercarriage, can be a significant long-term concern, particularly in regions with harsh winters or coastal environments. Electrical system gremlins, such as faulty sensors, wiring harness issues, or problems with the charging system, can also manifest in older vehicles.


Specific model year recalls for the Workhorse P42 chassis itself might be less common than those affecting the entire vehicle body or specific powertrain components provided by other manufacturers. It's crucial for potential buyers to research recalls related to the engine, transmission, and braking systems used in conjunction with the P42 chassis for the 2002 model year. Long-term reliability heavily depends on the initial build quality, the specific vocational use, and, most importantly, the consistent and thorough maintenance history.

How long will the 2002 Workhorse P42 last?

The 2002 Workhorse P42, when properly maintained, can achieve significant mileage and years of service. For commercial applications, it's not uncommon for these vehicles to accumulate 150,000 to 300,000 miles or more over their operational lifespan. This longevity is a testament to their robust chassis and heavy-duty components. However, this durability is highly contingent on consistent maintenance. Regular oil changes, fluid checks, and timely replacement of wear items like brakes and tires are critical. Neglecting maintenance can drastically shorten its service life, leading to premature failures in the engine, transmission, or other vital systems. Weaknesses over time often manifest as increased susceptibility to rust, and the potential for age-related component degradation in the electrical and fuel systems. Despite these potential issues, a well-cared-for P42 can remain a reliable workhorse for many years.

What Technology & Safety Features are Included?

The 2002 Workhorse P42 is a commercial chassis and, as such, its technology, entertainment, driver-assistance, and safety features are generally very basic, focusing on functionality and utility rather than modern conveniences. Built-in technology would typically be limited to essential instrumentation for the driver: a speedometer, tachometer, fuel gauge, temperature gauge, and indicator lights for various systems like oil pressure and battery charge. There would be no sophisticated infotainment systems, touchscreens, or integrated navigation common in passenger vehicles.


Entertainment features would likely consist of an optional aftermarket radio and perhaps a basic speaker system. Climate control would usually be a manual fan and air conditioning system, if optioned, rather than automatic climate control. Driver-assistance features, as understood today, were virtually non-existent. There would be no lane departure warnings, adaptive cruise control, or blind-spot monitoring.


Safety features would be rudimentary. Standard safety equipment would include seatbelts, basic headlights, taillights, and turn signals. Some models might have offered optional anti-lock braking systems (ABS) on the front or all wheels, which would be the extent of advanced safety tech. Airbags were not a standard feature on most commercial chassis of this era, especially in the driver's side for the P42.


Crash-test ratings for commercial chassis like the Workhorse P42 are generally not available or applicable in the same way they are for passenger cars. These vehicles are designed for cargo or passenger transport, and their structural integrity is rated based on their ability to withstand operational stresses and protect occupants from the environment. The safety of occupants is heavily dependent on the design and construction of the body or vocational upfit installed on the chassis, rather than the chassis itself.

What Colors Options are Available?

Exterior Colors
White
Black
Red
Blue
Silver
Gray
Tan
Charcoal Gray
Arctic White
Dark Blue
Maroon
Emerald Green
Interior Colors
Black (Interior)
Gray (Interior)
Tan (Interior)
Beige (Interior)
Light Gray (Interior)

2002 Workhorse P42 Prices and Market Value

Pricing for a 2002 Workhorse P42 when new was highly variable, as it was sold as a chassis to upfitters who then built the final vehicle (e.g., step van, shuttle bus). A bare chassis could range from $25,000 to $40,000 or more, with the total cost of the completed vehicle often exceeding $50,000 to $100,000+ depending on its purpose and features. Used market prices for the 2002 Workhorse P42 vary dramatically based on its condition, mileage, and the type of body installed. A functional chassis with a basic box body might be found for as little as $3,000 to $8,000, while a well-maintained and specialized unit could fetch $10,000 to $20,000 or more. These vehicles experience significant depreciation from their original inflated new prices, especially as they age and accrue mileage. Resale value is heavily influenced by maintenance history, rust, tire condition, and the utility of the installed body.

2002 Workhorse P42 Cost of Ownership

Owning a 2002 Workhorse P42 is generally not economical for personal use but can be cost-effective for commercial purposes when managed well. Insurance costs will depend on the vehicle's use and body type; commercial insurance will be higher than personal. Fuel costs will be substantial due to poor MPG, especially for gasoline models. Maintenance and repair costs can be moderate to high, as parts are often specialized for commercial use and require professional attention. Routine maintenance is crucial to prevent more expensive breakdowns. Long-term ownership is characterized by the need for consistent upkeep. While it can be a reliable workhorse, it is not a low-cost vehicle to own or operate.

2002 Workhorse P42 Fuel Efficiency

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

2002 Workhorse P42 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

2002 Workhorse P42 Insurance

Insurance for a 2002 Workhorse P42 is moderately priced, reflecting its status as a Bus with strong safety ratings and
reasonable repair costs.

How Does the 2002 Workhorse P42 Compare to Other Bus?

The 2002 Workhorse P42 competed in the medium-duty commercial chassis market, primarily facing rivals like the Ford E-Series chassis (E-350, E-450), Chevrolet Express chassis, and potentially chassis from Freightliner or Isuzu for specific vocational applications. In terms of performance, the P42 offered robust, utilitarian powertrains suitable for hauling loads, not for speed or agility. Its gasoline and diesel engine options were comparable to those found in Ford and Chevrolet offerings of the era, with diesel generally providing more torque and better longevity for heavy work.


Features were basic across the board for this class in 2002. The P42, like its competitors, focused on functionality. Rivals like the Ford E-Series chassis often had a wider range of engine and drivetrain options, and a more established dealer network for parts and service. Chevrolet Express chassis, particularly those used for cutaway vans, offered a similar versatile platform. Freightliner and Isuzu chassis, often diesel-powered, tended to be found in more specialized, heavier-duty applications and could command higher prices but offered greater durability and load capacity.


Reliability for the P42, as with most commercial vehicles, is heavily dependent on maintenance. Workhorse chassis were generally considered solid, but issues could arise depending on the specific powertrain and the rigors of its use. Ford and Chevrolet chassis also have their known issues, often related to transmission, engine components, or electronics, with many owners reporting similar wear-and-tear problems. In terms of price, the P42 chassis would have been competitively priced against its direct competitors when new, with the final vehicle cost heavily influenced by the body builder. Used, the P42 can be found at competitive prices, often slightly lower than comparable Ford or Chevrolet chassis if mileage is high or condition is average.


Alternatives:


  • Ford E-Series Chassis (E-350/E-450): A very common and versatile alternative, offering a wide range of body styles and often easier parts availability.

  • Chevrolet Express Cutaway Chassis: Similar in purpose and often used for shuttle buses and delivery vehicles.

  • Freightliner Sprinter (if considering lighter duty): While a different class, for some shuttle or smaller delivery needs, the Sprinter offered a more modern design and better fuel economy, but typically at a higher cost.

  • Isuzu NPR/NQR: These are diesel-powered trucks that offer robust durability for heavier-duty commercial tasks and are known for their reliability, though often at a higher initial price point.

For buyers seeking a basic, adaptable commercial chassis and who prioritize straightforward mechanicals over advanced features, the Workhorse P42 remains a viable option if found in good condition with thorough maintenance records. However, alternatives like the Ford E-Series might offer better long-term parts availability and a more extensive service network.

Final Verdict: Is the 2002 Workhorse P42 a Good Bus?

The 2002 Workhorse P42 is ideal for small to medium-sized businesses or individuals who require a utilitarian, customizable platform for specific commercial applications, such as a delivery step van, a mobile workshop, or a basic shuttle bus. It is not suited for personal transportation or those seeking comfort and modern technology. Whether it's worth buying depends heavily on the condition and intended use. As a used vehicle, it can be a cost-effective solution if purchased at a fair price and if a thorough pre-purchase inspection reveals no major mechanical or structural issues. Prioritize vehicles with detailed maintenance records. It is generally not advisable to seek out a 'new' 2002 model. Focus on specific vocational bodies that match your needs. For businesses, its value lies in its potential to be a reliable workhorse if properly maintained.

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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.