The 2004 Suzuki LTZ400, often referred to simply as the "Z400", emerged as a highly popular sport ATV known for its versatile performance. Featuring an aggressive, sporty body style, this liquid-cooled single-cylinder machine was introduced in 2003 and continued for many years. It primarily came in one well-equipped trim, blending power and agility. New pricing was around $5,700-$5,900, while used models now range from $2,000 to $4,500+. Its balanced nature makes it stand out for trail riding and light sport use.
The Good
The 2004 Suzuki LTZ400 offers an exciting performance with its responsive engine, delivering thrilling acceleration for emotional buyers. Practically, it boasts Suzuki's renowned reliability, ensuring less downtime and peace of mind. Its comfortable ergonomics and agile handling make long rides enjoyable, while decent fuel efficiency and strong used market value appeal to the budget-conscious owner.
The Bad
Known weaknesses for the 2004 Suzuki LTZ400 include potential frame cracking, particularly around the subframe and A-arm mounts, especially on units ridden hard. The stock carburetor can be finicky and often benefits from re-jetting for optimal performance or modifications. Owners should also watch for common electrical issues like stator or rectifier/regulator failures, which can lead to charging problems.
2004 Suzuki LTZ400: Quick Overview
The 2004 Suzuki LTZ400 came with a robust set of specifications designed for sport and trail riding:
- Engine: 398cc, 4-stroke, liquid-cooled, DOHC (Double Overhead Camshaft), single-cylinder engine. It featured a dry sump lubrication system.
- Horsepower: Factory estimates generally place horsepower in the range of 30-34 hp, providing strong mid-range power for various terrains.
- Fuel Economy: Highly dependent on riding style and terrain, but owners typically report fuel economy in the range of 20-30 MPG under mixed riding conditions.
- 0-60 Times: 0-60 mph times are not standard measurements for ATVs. However, the LTZ400 is known for quick acceleration from a standstill, with top speeds often reaching 65-70 mph, making it competitive in its class.
- Towing Capacity: The LTZ400 is a sport ATV and is not officially rated for towing capacity. Its design prioritizes performance and agility over utility tasks like towing.
- Trim-Level Features: The 2004 LTZ400 typically offered one primary sport trim with a comprehensive feature set for its time:
- Transmission: 5-speed manual transmission with reverse, enabling versatile control on trails and tracks.
- Starting: Convenient electric start.
- Suspension: Independent double A-arm front suspension with adjustable spring pre-load shocks, offering 8.5 inches of travel. Link-type, fully adjustable mono-shock rear suspension with 9.1 inches of travel.
- Brakes: Dual hydraulic disc brakes at the front and a single hydraulic disc brake at the rear, providing reliable stopping power.
- Instrumentation: Digital speedometer, odometer, trip meter, clock, fuel gauge, and various indicator lights (neutral, reverse, high beam, oil temperature).
- Chassis: Lightweight steel frame with an aluminum swingarm for a balance of strength and reduced unsprung weight.
- Fuel System: Keihin FCR37 flat-slide carburetor.
- Lighting: Bright headlights and taillights for visibility.
- Tires: Aggressive sport-oriented tires (22x7-10 front, 20x10-9 rear) for excellent off-road grip.
- Ergonomics: Sporty seating position and handlebar setup for rider comfort and control.
2004 Suzuki LTZ400 Specifications
Vehicle Information
| Year | 2004 |
| Make | Suzuki |
| Model | LTZ400 |
| Trim | - |
| Style | - |
| Type | Motorcycle |
| Category | Low Speed Vehicle |
Manufacturing Details
| Made In | Japan |
| Manufacturing City | TOYOKAWA |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | K428 |
| Engine Size | 398L |
| Engine Cylinders | 1 |
| 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 2004 Suzuki LTZ400 Have?
The 2004 Suzuki LTZ400, while largely reliable, does have several frequently reported problems and long-term reliability concerns that potential owners should be aware of. One of the most common issues is frame cracking. This tends to occur in areas of high stress, particularly around the subframe where the rear shock mounts and at the A-arm mounting points. This is often a result of aggressive riding, frequent jumps, or prolonged use without proper inspection and maintenance. It's crucial to inspect these areas thoroughly before purchase.
Another recurring concern involves the stock Keihin FCR37 carburetor. While functional, it can be sensitive to environmental changes (like altitude), air filter modifications, or aftermarket exhaust systems. Many owners report needing to re-jet the carburetor for optimal performance or to smooth out idle and throttle response. Some even opt for aftermarket carburetor upgrades.
Electrical problems are also sometimes reported. These can manifest as stator failures, rectifier/regulator issues, or corroded wiring harnesses. Symptoms often include a drained battery, dim lights, or intermittent power, indicating a failure in the charging system. The starter motor clutch or solenoid can also occasionally fail, making starting difficult.
Beyond these, general wear items such as rear axle carrier bearings can wear out prematurely, especially if the ATV is frequently ridden in muddy or wet conditions without diligent cleaning and regreasing. Similarly, A-arm bushings and ball joints are common wear points that can lead to loose steering and handling issues over time.
Regarding recalls, there were no widespread major safety recalls specifically targeting the 2004 Suzuki LTZ400 that significantly impacted its long-term reliability or public perception, beyond typical manufacturer bulletins for minor adjustments. The early model years (2003-2004) established the LTZ400's reputation for robust performance, but these specific points of potential weakness remained consistent across these initial years, requiring owner vigilance and preventative maintenance for optimal long-term reliability.
Another recurring concern involves the stock Keihin FCR37 carburetor. While functional, it can be sensitive to environmental changes (like altitude), air filter modifications, or aftermarket exhaust systems. Many owners report needing to re-jet the carburetor for optimal performance or to smooth out idle and throttle response. Some even opt for aftermarket carburetor upgrades.
Electrical problems are also sometimes reported. These can manifest as stator failures, rectifier/regulator issues, or corroded wiring harnesses. Symptoms often include a drained battery, dim lights, or intermittent power, indicating a failure in the charging system. The starter motor clutch or solenoid can also occasionally fail, making starting difficult.
Beyond these, general wear items such as rear axle carrier bearings can wear out prematurely, especially if the ATV is frequently ridden in muddy or wet conditions without diligent cleaning and regreasing. Similarly, A-arm bushings and ball joints are common wear points that can lead to loose steering and handling issues over time.
Regarding recalls, there were no widespread major safety recalls specifically targeting the 2004 Suzuki LTZ400 that significantly impacted its long-term reliability or public perception, beyond typical manufacturer bulletins for minor adjustments. The early model years (2003-2004) established the LTZ400's reputation for robust performance, but these specific points of potential weakness remained consistent across these initial years, requiring owner vigilance and preventative maintenance for optimal long-term reliability.
How long will the 2004 Suzuki LTZ400 last?
With proper maintenance, a 2004 Suzuki LTZ400 can offer an impressive lifespan. Many owners report their ATVs easily surpassing 10,000 to 20,000 miles, or providing 15-20 years of reliable service. The engine is particularly durable, often lasting thousands of hours if routine oil changes, valve adjustments, and air filter maintenance are adhered to. The transmission is also generally robust.
However, long-term durability is directly tied to care. Weaknesses that become apparent over time include the aforementioned frame cracking, especially on units that have been frequently jumped or ridden aggressively. Suspension components like bushings and ball joints will inevitably wear, requiring replacement to maintain precise handling. Electrical components, such as the stator and rectifier/regulator, can fail with age, necessitating replacement. Neglect of the chain, sprockets, and bearings (wheel, axle carrier) will lead to accelerated wear and higher repair costs. Overall, it's a durable machine, but proactive maintenance is key to mitigating its known long-term vulnerabilities.
However, long-term durability is directly tied to care. Weaknesses that become apparent over time include the aforementioned frame cracking, especially on units that have been frequently jumped or ridden aggressively. Suspension components like bushings and ball joints will inevitably wear, requiring replacement to maintain precise handling. Electrical components, such as the stator and rectifier/regulator, can fail with age, necessitating replacement. Neglect of the chain, sprockets, and bearings (wheel, axle carrier) will lead to accelerated wear and higher repair costs. Overall, it's a durable machine, but proactive maintenance is key to mitigating its known long-term vulnerabilities.
What Technology & Safety Features are Included?
As a sport ATV from 2004, the Suzuki LTZ400's "built-in tech" is quite basic compared to modern vehicles, focusing purely on essential rider information and machine operation. The primary technological feature is its digital instrumentation. This includes a clear speedometer, odometer, trip meter, a convenient clock, a fuel gauge, and various indicator lights for neutral, reverse, high beam, and oil temperature. There are no integrated entertainment systems, Bluetooth connectivity, USB ports, or complex infotainment displays common in today's vehicles. Optional features for the LTZ400 were generally performance-enhancing or protective accessories, such as aftermarket exhaust systems, skid plates, brush guards, custom handlebars, or upgraded suspension components, rather than advanced electronic tech features.
Driver-assistance features are entirely absent on the 2004 LTZ400, as is standard for sport ATVs of this era. Features like Anti-lock Braking System (ABS), traction control, stability control, or any form of terrain management system were not available. The ATV's handling and control are solely reliant on the rider's skill, judgment, and physical input. This design philosophy emphasizes direct connection between rider and machine for an unadulterated off-road experience.
In terms of safety features, the LTZ400 includes fundamental elements crucial for ATV operation. It features strong hydraulic disc brakes on both the front and rear for effective stopping power. Bright headlights and taillights ensure visibility during dawn, dusk, or night riding. A standard kill switch allows for immediate engine shutdown in emergencies. Aggressive off-road tires provide ample grip. However, there are no crash-test ratings for ATVs from organizations like NHTSA or IIHS, as these vehicles are not designed for highway use or to meet passenger vehicle safety standards. Rider safety on an ATV is predominantly dependent on the use of appropriate personal protective equipment (helmet, goggles, gloves, boots, chest protector) and adhering to safe, responsible riding practices.
Driver-assistance features are entirely absent on the 2004 LTZ400, as is standard for sport ATVs of this era. Features like Anti-lock Braking System (ABS), traction control, stability control, or any form of terrain management system were not available. The ATV's handling and control are solely reliant on the rider's skill, judgment, and physical input. This design philosophy emphasizes direct connection between rider and machine for an unadulterated off-road experience.
In terms of safety features, the LTZ400 includes fundamental elements crucial for ATV operation. It features strong hydraulic disc brakes on both the front and rear for effective stopping power. Bright headlights and taillights ensure visibility during dawn, dusk, or night riding. A standard kill switch allows for immediate engine shutdown in emergencies. Aggressive off-road tires provide ample grip. However, there are no crash-test ratings for ATVs from organizations like NHTSA or IIHS, as these vehicles are not designed for highway use or to meet passenger vehicle safety standards. Rider safety on an ATV is predominantly dependent on the use of appropriate personal protective equipment (helmet, goggles, gloves, boots, chest protector) and adhering to safe, responsible riding practices.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
2004 Suzuki LTZ400 Prices and Market Value
When new in 2004, the Suzuki LTZ400 typically retailed with an MSRP (Manufacturer's Suggested Retail Price) in the range of $5,699 to $5,899, depending on region and any dealer-specific add-ons. Today, in the used market, prices for a 2004 LTZ400 vary significantly, generally ranging from $2,000 for units in fair condition to $4,500 for exceptionally clean, well-maintained, or slightly modified examples.
Depreciation insights show that like most recreational vehicles, ATVs experience their steepest depreciation curve in the first few years. However, well-regarded models like the LTZ400 tend to hold their value relatively well in the long term due to their strong reputation for reliability and performance. Factors heavily affecting resale value include the ATV's overall mechanical and cosmetic condition, documented maintenance history, hours/mileage, and the quality of any modifications. A clean title and lack of major damage (especially frame cracks) are crucial for maximizing resale value.
Depreciation insights show that like most recreational vehicles, ATVs experience their steepest depreciation curve in the first few years. However, well-regarded models like the LTZ400 tend to hold their value relatively well in the long term due to their strong reputation for reliability and performance. Factors heavily affecting resale value include the ATV's overall mechanical and cosmetic condition, documented maintenance history, hours/mileage, and the quality of any modifications. A clean title and lack of major damage (especially frame cracks) are crucial for maximizing resale value.
2004 Suzuki LTZ400 Cost of Ownership
Long-term ownership of a 2004 Suzuki LTZ400 is generally quite economical. ATV insurance is typically affordable, often costing a few hundred dollars annually for basic coverage. Fuel consumption is reasonable for a 400cc sport quad, especially considering its performance capabilities, though premium fuel is sometimes recommended. Routine maintenance, including oil changes, air filter cleaning, and chain lubrication, is straightforward and inexpensive, with parts being readily available and reasonably priced.
Repair costs for common issues like worn bearings or electrical components are manageable. Major engine rebuilds or extensive frame repairs would be more substantial, but these are less frequent if the ATV is cared for. Overall, the LTZ400 is considered an economical choice for a sport ATV, offering excellent value and a low barrier to entry for enthusiasts, making it a very appealing long-term investment for fun.
Repair costs for common issues like worn bearings or electrical components are manageable. Major engine rebuilds or extensive frame repairs would be more substantial, but these are less frequent if the ATV is cared for. Overall, the LTZ400 is considered an economical choice for a sport ATV, offering excellent value and a low barrier to entry for enthusiasts, making it a very appealing long-term investment for fun.
2004 Suzuki LTZ400 Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
-
City Mileage
-
Highway Mileage
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2004 Suzuki LTZ400 Insurance
Insurance for a 2004 Suzuki LTZ400 is moderately priced, reflecting its status as a Motorcycle with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2004 Suzuki LTZ400 Compare to Other Motorcycle?
The 2004 Suzuki LTZ400 holds a strong position against its key rivals from the era, primarily the Honda TRX400EX, the Kawasaki KFX400 (which is mechanically identical to the LTZ400 due to a Suzuki-Kawasaki partnership), and the Yamaha YFZ450. The Yamaha Warrior 350 was also a competitor, though often seen as a step below.
In terms of Performance, the LTZ400 offers a significant edge over the air-cooled Honda TRX400EX and Yamaha Warrior 350. Its liquid-cooled, DOHC engine provides stronger mid-range power and better overall acceleration. The LTZ400 feels more agile and responsive than the TRX400EX, making it a favorite for intermediate sport riding and technical trails. However, when stacked against the Yamaha YFZ450, the LTZ400 falls short in outright, high-revving power and race-track performance. The YFZ450, designed with a more aggressive, race-oriented engine, offered superior top-end grunt.
Regarding Features, the LTZ400 was more "modern" than the TRX400EX, offering digital instrumentation and liquid cooling as standard. The KFX400 shares identical features. The YFZ450, while lacking some of the digital niceties, focused on advanced suspension and a more potent engine, catering to a different segment. The Warrior 350 was a much simpler, air-cooled machine.
Reliability is a strong suit for all Japanese brands. The LTZ400, along with its twin the KFX400, is highly reliable, arguably on par with the legendary durability of the TRX400EX. The YFZ450, due to its higher-strung, race-bred engine, often demands more meticulous maintenance, though it's still a very reliable machine within its performance category.
For Price, when new, all were competitively priced. In the used market, the LTZ400 and KFX400 generally command slightly higher prices than similarly aged TRX400EX units due to their liquid-cooled engines and sportier feel, but typically less than a YFZ450 because of the latter's pure performance advantage.
Recommended Alternatives:
In terms of Performance, the LTZ400 offers a significant edge over the air-cooled Honda TRX400EX and Yamaha Warrior 350. Its liquid-cooled, DOHC engine provides stronger mid-range power and better overall acceleration. The LTZ400 feels more agile and responsive than the TRX400EX, making it a favorite for intermediate sport riding and technical trails. However, when stacked against the Yamaha YFZ450, the LTZ400 falls short in outright, high-revving power and race-track performance. The YFZ450, designed with a more aggressive, race-oriented engine, offered superior top-end grunt.
Regarding Features, the LTZ400 was more "modern" than the TRX400EX, offering digital instrumentation and liquid cooling as standard. The KFX400 shares identical features. The YFZ450, while lacking some of the digital niceties, focused on advanced suspension and a more potent engine, catering to a different segment. The Warrior 350 was a much simpler, air-cooled machine.
Reliability is a strong suit for all Japanese brands. The LTZ400, along with its twin the KFX400, is highly reliable, arguably on par with the legendary durability of the TRX400EX. The YFZ450, due to its higher-strung, race-bred engine, often demands more meticulous maintenance, though it's still a very reliable machine within its performance category.
For Price, when new, all were competitively priced. In the used market, the LTZ400 and KFX400 generally command slightly higher prices than similarly aged TRX400EX units due to their liquid-cooled engines and sportier feel, but typically less than a YFZ450 because of the latter's pure performance advantage.
Recommended Alternatives:
- Honda TRX400EX: For those prioritizing ultimate reliability and a slightly more forgiving, air-cooled trail machine.
- Yamaha YFZ450: If maximum power and race-oriented performance are the primary goals, be prepared for potentially higher maintenance.
- Kawasaki KFX400: An identical alternative; choose based on availability and condition.
Final Verdict: Is the 2004 Suzuki LTZ400 a Good Motorcycle?
The 2004 Suzuki LTZ400 is an outstanding choice for the recreational rider who desires a versatile sport ATV. It's ideal for those seeking a machine that offers a potent blend of performance for spirited trail riding and enough agility for light track use, without the high maintenance demands of a pure race quad. It appeals to both experienced riders and those looking to upgrade from smaller machines, providing a forgiving yet exciting ride.
Is it worth buying? Absolutely, especially in today's used market. It represents exceptional value. When considering a purchase, look for well-maintained used units. Crucially, inspect the frame for any signs of cracking, particularly around the subframe and A-arm mounts. Prioritize ATVs with documented maintenance, a clean title, and minimal modifications. Avoid heavily abused examples or those with obvious frame damage. A well-cared-for 2004 LTZ400 remains a fantastic, reliable, and fun sport quad that won't break the bank, offering years of enjoyment.
Is it worth buying? Absolutely, especially in today's used market. It represents exceptional value. When considering a purchase, look for well-maintained used units. Crucially, inspect the frame for any signs of cracking, particularly around the subframe and A-arm mounts. Prioritize ATVs with documented maintenance, a clean title, and minimal modifications. Avoid heavily abused examples or those with obvious frame damage. A well-cared-for 2004 LTZ400 remains a fantastic, reliable, and fun sport quad that won't break the bank, offering years of enjoyment.
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.