HONDA 386551 Kit 399CC

( Machine Type: Atv ), ( Manufacturer Warranty: 1 Year ), ( Manufacturer Part Number: 386551 ), ( Country/region Of Manufacture: United States ), ( Vintage Part: No ), ( Compatible Year: 2006, 2014 ), ( Performance Part: Yes )

Review HONDA 399cc Kit Complete fits TRX450ER 2006–2014

The Honda 386551 kit is specifically designed for the Honda TRX450ER model years 2006 to 2014. This kit upgrades the standard 376cc engine of the TRX450ER to a more powerful 399cc engine, providing an enhanced riding experience.

The kit includes all the necessary components for the engine upgrade. The most significant part is the larger, 44mm throttle body, which allows more air to enter the engine for increased power output. Additionally, the kit comes with a high-performance cylinder head and new piston and ring set. These upgrades result in improved combustion efficiency and a more responsive engine.

The Honda 386551 kit also includes a high-performance air filter and a new fuel pump. The air filter ensures that the engine receives clean air for optimal performance, while the new fuel pump delivers a consistent fuel supply to the engine.

The kit comes with detailed instructions for installation, making it a relatively straightforward process for experienced motorcycle mechanics. However, it is recommended that the installation be performed by a professional to ensure proper fitment and function.

The Honda 386551 engine kit is an excellent choice for riders who want to take their TRX450ER to the next level. With increased power output and improved combustion efficiency, this kit provides a more exciting and responsive riding experience.

It is important to note that installing this kit may affect the emissions compliance of the motorcycle, and riders may need to check with local regulations to ensure they are in compliance. Additionally, the kit may require additional modifications to ensure proper fitment and function, and these modifications may require additional parts or labor costs.

Overall, the Honda 386551 engine kit is a high-quality upgrade for the Honda TRX450ER, providing increased power and performance for off-road enthusiasts. With careful installation and consideration of local regulations, riders can enjoy a more exciting and responsive riding experience.

The Honda TRX450ER, model number 386551, is a versatile and powerful all-terrain vehicle (ATV) manufactured by Honda between 2006 and 2014. This 399cc, liquid-cooled, single-cylinder ATV is popular among outdoor enthusiasts due to its reliability, durability, and performance. In this analysis, we will discuss the pros and cons of buying this ATV model.

1. Reliability: Honda is known for its robust and reliable engines. The TRX450ER's engine delivers excellent performance and longevity, making it a preferred choice for many off-road riders.

2. Power and Torque: With a power output of 32.4 horsepower, this ATV provides impressive acceleration and climbing ability. Its ample torque also makes it suitable for heavy-duty tasks like towing and hauling.

3. Comfort: The TRX450ER offers a comfortable riding experience with its adjustable seat and ergonomic design. The suspension system provides excellent shock absorption, reducing rider fatigue during long rides.

4. Versatility: This ATV is well-suited for various terrains, including mud, sand, rocky trails, and forests. Its wide tires, long travel suspension, and powerful engine make it a versatile off-road vehicle.

5. Safety Features: The TRX450ER includes several safety features, such as a three-point seat belt, a refueling petcock that automatically shuts off when the fuel pump is not in use, and a large front disc brake.

1. Price: Compared to other ATVs in its class, the Honda TRX450ER can be relatively expensive due to its high-quality components and Honda's reputation for durability.

2. Weight: With a dry weight of 668 pounds, this ATV can be heavy and challenging to maneuver for some riders, especially on steep inclines or during tight turns.

3. Limited Storage: The TRX450ER's cargo bed is relatively small compared to other ATVs in its class, making it less suitable for hauling large loads.

4. Maintenance: Like any other vehicle, the TRX450ER requires regular maintenance to ensure optimal performance. This includes oil changes, tire rotations, and air filter replacements.

The Honda TRX450ER (model number 386551) is a high-performance, reliable, and versatile all-terrain vehicle that offers a comfortable riding experience. Its powerful engine, robust suspension, and safety features make it an excellent choice for off-road enthusiasts seeking a durable and capable ATV. However, its relatively high price and limited cargo bed capacity are potential drawbacks. Ultimately, the decision to buy a Honda TRX450ER depends on your specific needs, budget, and off-road riding preferences.

If you are looking for a high-performance, reliable, and versatile ATV with excellent safety features and a comfortable riding experience, the Honda TRX450ER (model number 386551) is an excellent choice. However, consider your budget and the need for a larger cargo bed before making your final decision. If cargo capacity is a priority, you may want to explore other options with larger beds.

part # 386551 prices

• $61.70-$219.99

specifications atvsienna:

• for models: Trx450er
• for makes: Honda
• for years: 2006-2014
• machine type: Atv
• manufacturer warranty: 1 Year
• manufacturer part number: 386551
• country/region of manufacture: United States
• vintage part: No
• compatible year: 2006, 2014
• performance part: Yes

shipping atvsienna:

• service: USPS Ground Advantage
• cost: $0.00
• class: Standard
• type: Calculated
• carrier: USPS
• transit: 4-9 Days

payments atvsienna:

• credit card: Discover
• other
• wallet: Apple-pay

general atvsienna:

• condition: New other see details
• ATV, Side-by-Side UTV Parts Accessories > Engines Engine Parts > Other Engine Parts

seller atvsienna:

• rating: 100.0%
• # reviews: 3349

returns atvsienna:

• policy: No Returns

offer atvsienna:

• options: Ship-to-home
• sold: 0
• started: July 10, 2025
• quantity: 5
• best offers: True
• availability: In Stock

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