1. ATV Transmission & Drivetrain Parts Deals
  2. sku: 13794625824339751
  3. HONDA 23431-HN1-000

HONDA 23431-HN1-000 Transmission Countershaft Second Gear 2ND 31T

fits model: Trx400ex, Trx400. make: Honda. year: 1999–2004.

23431-hn1-000 Honda 99-04 2002 Trx400ex Trx400 Oem Transmission Countershaft Second 2nd Gear 31t

( Part Type: Transmission Gear ), ( Manufacturer Part Number: 23431-HN1-000 )

Review HONDA Oem Transmission Countershaft Second 2nd Gear 31t fits TRX400EX TRX400 1999–2004

The Honda 23431-hn1-000 countershaft second gear for the 1999-2004 Honda TRX400EX and TRX400 models is an essential component of the transmission system. This gear is specifically designed for the 2002 TRX400EX and TRX400, making it an ideal replacement for worn-out or damaged gears.

This high-quality part is manufactured with precision and durability in mind. It is made from heat-treated steel, ensuring strength and resistance to wear and tear. The gear teeth are meticulously cut using advanced technology to ensure a perfect fit and smooth engagement with other transmission gears.

The countershaft second gear measures 31 teeth, making it an essential component in the power transfer process from the engine to the wheels. It is designed to mesh with the third gear on the countershaft, allowing the ATV to transition smoothly between second and third gears.

Installing this gear is a straightforward process for experienced ATV mechanics or for those comfortable with basic mechanical work. It is recommended to follow the manufacturer's instructions carefully and use the appropriate tools for the job to ensure a proper installation.

In summary, the Honda 23431-hn1-000 countershaft second gear is a crucial replacement part for the 1999-2004 Honda TRX400EX and TRX400 models. It is manufactured from high-quality heat-treated steel, ensuring strength, durability, and a perfect fit. With 31 teeth, it plays an essential role in the power transfer process, making it an essential component for maintaining the performance and reliability of your ATV.

Pros and Cons of Buying a Honda TRX400EX Transmission Countershaft Second Gear (31T) (Honda 23431-HN1-000)

Introduction:

The Honda 23431-HN1-000 is a second gear 31T countershaft for the Honda TRX400EX and TRX400 models produced between 1999 and 2004. Replacing this part may be necessary due to wear or damage. In this article, we will discuss the advantages and disadvantages of purchasing this transmission component.

Pros:

1. OEM (Original Equipment Manufacturer) part: This countershaft is an original Honda part, ensuring proper fit and functionality.

2. Improved performance: A new countershaft can enhance the overall performance of the transmission by reducing wear, improving shifting, and reducing vibrations.

3. Durability: Honda is known for manufacturing high-quality parts, which can lead to a longer lifespan for the transmission.

4. Availability: The Honda 23431-HN1-000 is widely available from various suppliers, making it easy to find and purchase.

Cons:

1. Cost: This OEM part can be more expensive compared to aftermarket alternatives.

2. Installation complexity: Installing a transmission countershaft requires technical expertise and the proper tools, potentially adding to the overall cost.

3. Wait time for shipping: Depending on the supplier and shipping method, there may be a delay in receiving the part.

4. Potential for unnoticed issues: When replacing a transmission component, other worn or damaged parts may not be immediately apparent and could require further repairs.

Conclusion:

The decision to purchase the Honda 23431-HN1-000 99-04 2002 TRX400EX TRX400 transmission countershaft second gear 31T depends on various factors. If you value the peace of mind that comes with using an OEM part and are willing to invest in the potential performance improvements, this may be the best choice for you. However, if cost is a significant concern, you may consider exploring aftermarket alternatives. Ultimately, it is essential to weigh the pros and cons and consult with a professional mechanic to ensure the best outcome for your specific situation.

Recommendation:

If you decide to proceed with purchasing the Honda 23431-HN1-000, ensure you buy it from a reputable supplier to guarantee authenticity and quality. Additionally, consider having the part installed by a professional mechanic to ensure proper installation and minimize potential complications.

part # 23431hn1000 price

  • $69.99

specifications utvshift:

  • for models: Trx400ex, Trx400
  • for makes: Honda
  • for years: 1999-2004
  • part type: Transmission Gear
  • manufacturer part number: 23431-HN1-000

general utvshift:

  • ATV, Side-by-Side UTV Parts Accessories > Transmission Drivetrain > Other Transmission Drivetrain Parts
  • condition: Used

shipping utvshift:

  • type: Fixed
  • service: USPS Priority Mail
  • class: Expedited
  • carrier: USPS
  • cost: $0.00
  • transit: 5-11 Days

payments utvshift:

  • other
  • wallet: Paypal
  • credit card: Diners-club

returns utvshift:

  • time: 30 Days
  • paid by: Buyer
  • policy: Returns Accepted

offer utvshift:

  • options: Ship-to-home
  • quantity: 1
  • sold: 0
  • availability: In Stock
  • started: May 22, 2026

seller utvshift:

  • # reviews: 5599
  • rating: 99.8%
for models: trx400ex, trx400, for makes: honda, for years: 1999-2004, part type: transmission gear,
category: atv parts > atv, side-by-side utv parts accessories > transmission drivetrain > transmission drivetrain parts, sku: 13794625824339751,

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  • Offer #1: $69.99 price + free delivery = $69.99* total. 2002 HONDA TRX400EX OEM Transmission Countershaft Second Gear.FREE SHIPPING