The 2003 Peterbilt 379 is a classic American Class 8 truck, renowned for its long-nose design and durability. Produced as part of the 379's model years (1987-2007), it's offered primarily as a semi-truck. While trim levels aren't as defined as passenger vehicles, customization options were vast. Pricing varies greatly depending on condition and mileage, from $20,000 to $80,000+. Its iconic look and reputation for reliability contribute to its enduring popularity.
The Good
The 2003 Peterbilt 379 boasts a powerful performance, legendary reliability, and iconic design that appeals to those seeking a classic big rig. It is known for its comfortable ride (for a truck) and relative efficiency for its size. While not the most fuel-efficient of modern trucks, its lasting value and robust construction make it a practical and emotionally satisfying choice for many.
The Bad
Potential weaknesses of the 2003 Peterbilt 379 include age-related wear and tear, potential for high mileage, and the maintenance costs associated with older heavy-duty trucks. Watch out for rust, especially in areas with road salt, and thoroughly inspect the engine and transmission for any signs of issues. Suspension components should also be inspected.
2003 Peterbilt 379: Quick Overview
Here's a summary of the key specs for the 2003 Peterbilt 379:
- Engine Options: Primarily Caterpillar (CAT), Cummins, and Detroit Diesel engines. Specific models varied widely based on customer order.
- Horsepower: Typically ranged from 350 to 600+ horsepower, depending on the engine and its configuration.
- Fuel Economy: Fuel economy is highly variable depending on load, driving conditions, and engine type, but generally expect between 5 and 8 miles per gallon.
- 0-60 Times: Irrelevant for this class of vehicle. Acceleration is geared towards hauling heavy loads, not speed.
- Towing Capacity: Designed for heavy-duty hauling, with a Gross Combined Weight Rating (GCWR) that can exceed 80,000 lbs depending on configuration.
- Trim-Level Features: The Peterbilt 379 didn't have traditional trim levels like passenger cars. Features were largely customizable:
- Cab Options: Day cab, extended cab, and various sleeper cab sizes.
- Interior: Options ranged from basic to more luxurious, with features like air-ride seats, upgraded sound systems, and custom upholstery.
- Exterior: Chrome accents, custom paint jobs, and various lighting options were popular.
- Transmission: Manual transmissions were common, typically with 10, 13, or 18 speeds. Automatic transmissions were also available but less common.
- Axle Configurations: Available in various axle configurations, including single-axle and tandem-axle setups, depending on the intended use.
- Suspension: Air-ride suspensions were a popular option for improved ride comfort.
2003 Peterbilt 379 Specifications
Vehicle Information
| Year | 2003 |
| Make | Peterbilt |
| Model | 379 |
| Trim | - |
| Style | - |
| Type | Truck |
| Category | Medium Truck |
Manufacturing Details
| Made In | United States |
| Manufacturing City | MONTREAL |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | 330001 pounds |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 14.6L L6 DIESEL |
| Engine Size | 14.6L |
| Engine Cylinders | 6 |
| Transmission | - |
| Transmission Type | - |
| Transmission Speeds | - |
| Drivetrain | 6x4 |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
Vehicle History Report
Vehicle
Specifications
Specifications
Ownership
History
History
All History
Events
Events
NMVTIS Title
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History Check
Salvage/Rebuilt
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Accident
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Theft
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Open Lien
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Past Sale
Listings
Listings
Safety
Recalls
Recalls
Odometer
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Market Price
Analysis
Analysis
What Problems Does the 2003 Peterbilt 379 Have?
The 2003 Peterbilt 379, being a robust truck, generally holds up well, but age brings common issues. Frequently reported problems often revolve around wear and tear on major components. Engine issues, especially with older Caterpillar or Cummins engines, can arise, including turbocharger failures, injector problems, and coolant leaks. Transmission problems, while less frequent, can be costly due to the complexity of heavy-duty transmissions.
Air system leaks are common due to aging hoses and fittings. Suspension components, especially air springs and shocks, may need replacement over time. Electrical issues can occur due to corrosion and damaged wiring, particularly in areas exposed to the elements. Rust is a significant concern, especially in regions where road salt is used. Cab mounts and frame rails should be inspected carefully for corrosion.
Recalls are less model year specific and more component specific, potentially affecting various trucks from that era. Checking the NHTSA (National Highway Traffic Safety Administration) website with the VIN is crucial to identify any outstanding recalls. Long-term reliability heavily depends on maintenance history. Trucks with regular maintenance and timely repairs tend to last significantly longer. Neglecting maintenance can lead to cascading failures and expensive repairs down the line.
Air system leaks are common due to aging hoses and fittings. Suspension components, especially air springs and shocks, may need replacement over time. Electrical issues can occur due to corrosion and damaged wiring, particularly in areas exposed to the elements. Rust is a significant concern, especially in regions where road salt is used. Cab mounts and frame rails should be inspected carefully for corrosion.
Recalls are less model year specific and more component specific, potentially affecting various trucks from that era. Checking the NHTSA (National Highway Traffic Safety Administration) website with the VIN is crucial to identify any outstanding recalls. Long-term reliability heavily depends on maintenance history. Trucks with regular maintenance and timely repairs tend to last significantly longer. Neglecting maintenance can lead to cascading failures and expensive repairs down the line.
How long will the 2003 Peterbilt 379 last?
The 2003 Peterbilt 379, with proper maintenance, can easily accumulate well over a million miles. Many are still in service after 20+ years. The lifespan hinges heavily on maintenance. Owners who adhere to strict service schedules and address issues promptly can expect exceptional longevity. Conversely, neglected trucks will experience a shorter lifespan and more frequent breakdowns. Long-term durability hinges on the quality of replacement parts used and the attention to detail during repairs. Weaknesses tend to emerge in the form of increased component wear, electrical problems, and rust as the truck ages.
What Technology & Safety Features are Included?
The 2003 Peterbilt 379 predates the era of advanced tech features common in modern vehicles. Built-in tech was limited to basic instrumentation like gauges, speedometers, and odometers.
Entertainment was primarily aftermarket, with options for radios and CB radios being popular. Driver-assistance features were minimal, typically limited to air brakes and power steering. Safety features included standard seatbelts and basic lighting. ABS (Anti-lock Braking System) was available as an option, but not standard on all models.
Optional features focused on comfort and customization. Air-ride seats, upgraded sound systems, and sleeper cab amenities were common upgrades. Chrome packages and custom paint jobs were also popular for aesthetic enhancements. Engine brakes (Jake brakes) were a crucial safety feature, assisting with downhill braking.
Crash-test ratings are not available for Class 8 trucks like the Peterbilt 379. Safety regulations for these vehicles primarily focus on structural integrity and braking performance rather than crashworthiness in the same way as passenger cars. Driver skill and experience are paramount for safe operation. The absence of modern driver-assistance technologies means that the driver bears full responsibility for maintaining safe driving practices.
Entertainment was primarily aftermarket, with options for radios and CB radios being popular. Driver-assistance features were minimal, typically limited to air brakes and power steering. Safety features included standard seatbelts and basic lighting. ABS (Anti-lock Braking System) was available as an option, but not standard on all models.
Optional features focused on comfort and customization. Air-ride seats, upgraded sound systems, and sleeper cab amenities were common upgrades. Chrome packages and custom paint jobs were also popular for aesthetic enhancements. Engine brakes (Jake brakes) were a crucial safety feature, assisting with downhill braking.
Crash-test ratings are not available for Class 8 trucks like the Peterbilt 379. Safety regulations for these vehicles primarily focus on structural integrity and braking performance rather than crashworthiness in the same way as passenger cars. Driver skill and experience are paramount for safe operation. The absence of modern driver-assistance technologies means that the driver bears full responsibility for maintaining safe driving practices.
What Colors Options are Available?
Exterior Colors
White
Black
Red
Blue
Silver
Gray
Green
Yellow
Orange
Burgundy
Dark Blue
Dark Green
Tan
Custom Mix 1
Custom Mix 2
Interior Colors
Beige
Brown
Dark Gray
Medium Gray
Light Gray
2003 Peterbilt 379 Prices and Market Value
When new in 2003, a Peterbilt 379 could range from $80,000 to $120,000+, depending on configuration and options. Currently, used market prices vary widely, typically ranging from $20,000 to $80,000+, depending on condition, mileage, and engine.
Depreciation is significant in the early years but slows down considerably as the truck ages, especially if well-maintained. Factors affecting resale value include engine type, mileage, overall condition, maintenance history, and the presence of desirable features like a clean title, good tires, and a well-maintained sleeper cab. Iconic status can also command a premium.
Depreciation is significant in the early years but slows down considerably as the truck ages, especially if well-maintained. Factors affecting resale value include engine type, mileage, overall condition, maintenance history, and the presence of desirable features like a clean title, good tires, and a well-maintained sleeper cab. Iconic status can also command a premium.
2003 Peterbilt 379 Cost of Ownership
Long-term ownership costs for a 2003 Peterbilt 379 can be substantial. Insurance costs depend on driving record, coverage, and location. Fuel costs are significant, especially with frequent long-haul trips. Maintenance and repair costs can be high due to the age of the truck and potential for breakdowns. Expect to spend a considerable amount on routine maintenance like oil changes, tire replacements, and brake repairs. It's not an economical vehicle to own, but for owner-operators, the earning potential can offset these costs.
2003 Peterbilt 379 Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2003 Peterbilt 379 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
2003 Peterbilt 379 Insurance
Insurance for a 2003 Peterbilt 379 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2003 Peterbilt 379 Compare to Other Truck?
The 2003 Peterbilt 379 competed with trucks like the Kenworth W900, Freightliner Classic, and International 9400i. In terms of performance, all these trucks offered similar engine options and hauling capabilities. Features were largely customizable across brands. Reliability is subjective, but all were generally considered durable trucks. The Peterbilt 379 often commanded a slightly higher price due to its iconic status.
The Kenworth W900 is a very similar alternative, offering comparable performance and customization options. The Freightliner Classic was often a more budget-friendly option, but some considered it less aesthetically appealing. The International 9400i offered a blend of features and price but wasn't as widely sought after as the Peterbilt or Kenworth.
Modern trucks like the Peterbilt 579 or Kenworth T680 offer improved fuel efficiency, advanced safety features, and greater driver comfort, but lack the classic styling of the 379. Whether they are "better" depends on priorities. If classic styling and simplicity are desired, the 379 remains a strong contender. For modern features and efficiency, a newer truck is preferable.
The Kenworth W900 is a very similar alternative, offering comparable performance and customization options. The Freightliner Classic was often a more budget-friendly option, but some considered it less aesthetically appealing. The International 9400i offered a blend of features and price but wasn't as widely sought after as the Peterbilt or Kenworth.
Modern trucks like the Peterbilt 579 or Kenworth T680 offer improved fuel efficiency, advanced safety features, and greater driver comfort, but lack the classic styling of the 379. Whether they are "better" depends on priorities. If classic styling and simplicity are desired, the 379 remains a strong contender. For modern features and efficiency, a newer truck is preferable.
Final Verdict: Is the 2003 Peterbilt 379 a Good Truck?
The 2003 Peterbilt 379 is ideal for owner-operators and trucking enthusiasts seeking a classic, iconic big rig. It's worth buying if you appreciate its styling and are prepared for the maintenance demands of an older truck. Buying used is the only option, as it's no longer in production. Look for well-maintained examples with documented service history and avoid trucks with excessive rust or major mechanical issues. Consider paying a premium for a truck with a desirable engine and transmission combination. Be prepared for higher running costs compared to newer models.
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.