HONDA 38911-HN8-000 Control Unit Module

( Manufacturer Part Number: 38911-HN8-000 ), ( Type: Shift Change Control )

Review HONDA Oem Shift Change Computer Control Unit Module fits RINCON TRX650FA 650 4X4 2005

The **Honda 38911-HN8-000 2005 Rincon 650 TRX650FA 4x4 Control Unit Module** is a critical, high-performance electronic component designed exclusively for Honda s legendary TRX650FA, a dual-sport adventure bike renowned for its rugged versatility and off-road prowess. This **4x4 Control Unit Module** serves as the brain of the bike s advanced four-wheel-drive system, seamlessly integrating with the TRX650FA s torque-sensing differential and transfer case to optimize traction, stability, and control across diverse terrains from deep sand and rocky trails to wet pavement and steep inclines. Engineered with Honda s signature precision, this module features a robust, sealed housing to protect against dust, moisture, and harsh environmental conditions, ensuring reliable operation even in the most demanding off-road scenarios. The unit interfaces directly with the bike s ECU (Engine Control Unit), receiving real-time data on wheel speed, throttle input, and vehicle dynamics to dynamically adjust the 4x4 engagement, lock-up, and slip differential behavior. Whether you re navigating a technical single-track trail or cruising on a highway, this module enhances the TRX650FA s legendary adaptability, delivering a smooth yet responsive driving experience that balances power delivery and traction with unmatched efficiency. For riders seeking to restore or upgrade their 2005 TRX650FA s off-road capabilities, this **OEM-specification part** is an essential replacement, ensuring compatibility with the bike s original electronic architecture while maintaining the integrity of its advanced 4x4 system. Its direct fitment and seamless integration make it an ideal choice for both restoration projects and routine maintenance, guaranteeing that your Honda continues to perform at the peak of its legendary dual-sport potential.

### **Pros and Cons of Buying a 2005 Honda TRX650FA (Rincon 650) 4x4 Control Unit Module (Part # 38911-HN8-000)**

1. **Reliability and Durability** Honda s 4x4 control modules are known for their robust construction and long-term reliability, especially in off-road applications. The TRX650FA s system is designed to handle demanding conditions, reducing the risk of premature failure.

2. **Compatibility** This specific part (38911-HN8-000) is a direct replacement for the 2005 TRX650FA, ensuring an exact fit without modification. It integrates seamlessly with the vehicle s existing wiring and control logic.

3. **Prevents Electrical Issues** A faulty 4x4 control module can cause erratic 4WD engagement, poor shifting, or even complete loss of 4x4 functionality. Replacing it resolves these symptoms and restores proper operation of the transfer case and locking differential.

4. **Cost-Effective Repair** Compared to rebuilding or replacing the entire transfer case or 4WD system, the module is relatively inexpensive. This makes it a practical solution for restoring functionality without major expenses.

5. **Warranty Coverage (If Purchased New)** If buying from an authorized Honda dealer or a reputable aftermarket supplier, the module may come with a warranty, providing peace of mind against early failure.

6. **Easy Installation** The module is typically a plug-and-play replacement, requiring only basic tools and minimal mechanical skill. Most riders can install it in under an hour with proper guidance.

7. **Supports Off-Road Performance** A functioning 4x4 control unit ensures smooth engagement of the 4WD system, which is critical for traction in mud, sand, or rocky terrain. This enhances the TRX650FA s capability as an off-road machine.

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1. **Aging Electronics** The 2005 TRX650FA s 4x4 control module is over two decades old, and its internal electronics may degrade over time, especially if the vehicle has been exposed to moisture, dust, or electrical surges. A new module won t fix underlying wiring or sensor issues.

2. **Limited Availability of New Parts** While Honda still supports older models, the 38911-HN8-000 module may not be as readily available as newer parts. Prices could be higher due to lower demand, or you may need to order from a specialty supplier.

3. **Potential Counterfeit or Used Parts** If purchasing from an untrusted source, there s a risk of receiving a refurbished, salvaged, or counterfeit module. Always verify the seller s reputation and ask for proof of authenticity (e.g., Honda OEM packaging or a bill of sale).

4. **No Upgrades in Functionality** This is a direct replacement, not an upgraded part. It won t improve performance beyond the original specifications, such as adding new shift modes or diagnostic features.

5. **Diagnostic Challenges** If the module fails again shortly after replacement, it may indicate deeper issues, such as a faulty transfer case solenoid, wiring harness damage, or a failing ECU. A mechanic may need to diagnose these problems separately.

6. **Labor Costs (If Not DIY)** While the installation is straightforward, if you hire a mechanic, labor costs could add to the total expense. For some riders, this may not be cost-effective compared to doing it themselves.

7. **Environmental Factors** If the original module failed due to exposure to water, dirt, or extreme temperatures, the new module could also be at risk unless the vehicle s electrical system is properly maintained.

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Buying the **2005 Honda TRX650FA 4x4 Control Unit Module (38911-HN8-000)** is a **practical and cost-effective solution** for restoring 4WD functionality to your Rincon 650. It offers reliability, ease of installation, and compatibility, making it ideal for riders who need to fix a specific electrical issue without major repairs. However, it s important to consider potential drawbacks such as part availability, the risk of counterfeit items, and the possibility of underlying electrical problems that may recur.

If your primary goal is to **fix a non-functioning 4x4 system**, this module is a **strong recommendation**. However, if you suspect **wiring, sensor, or transfer case issues**, address those first to prevent future failures. Always purchase from a **trusted source** (e.g., Honda dealer, reputable aftermarket supplier, or a verified eBay seller) to ensure authenticity.

- **Buy the module** if you ve confirmed the issue is isolated to the 4x4 control unit and you want a quick, reliable fix.

- **Check for wiring/sensor problems** before installation to avoid recurring issues.

- **Install it yourself** if comfortable with basic mechanical/electrical work to save labor costs.

- **Avoid used/refurbished parts** unless you re certain of their condition, as they may not perform as reliably as a new OEM module.

For most riders, this is a **worthwhile investment** to restore their TRX650FA s off-road capability without unnecessary complexity.

Details:

. The shift change control is dirty. Removed From: 2005 Honda Rincon 650 with Unknown miles, Please review all pictures to assess the condition of item. 2005 Honda Rincon 650 TRX650FA 4X4 OEM SHIFT CHANGE COMPUTER CONTROL UNIT MODULE, This shift change control is in good condition and shows normal signs of wear.

part #: 38911hn8000 price

• $239.95

specifications electricacompone:

• for models: Trx650fa, 650, 4x4, Rincon
• for makes: Honda
• for years: 2005
• mpn: 38911-hn8-000
• type: Shift Change Control

seller electricacompone:

• rating: 99.6%
• city: Lapoint, Utah
• # reviews: 3825

payments electricacompone:

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

shipping electricacompone:

• transit: 5-8 Days
• type: Calculated
• carrier: UPS
• cost: $0.00
• class: Economy
• service: UPS Ground Saver

offer electricacompone:

• started: March 11, 2026
• availability: In Stock
• quantity: 1
• options: Ship-to-home
• sold: 0

returns electricacompone:

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

general electricacompone:

• condition: Used
• ATV, Side-by-Side UTV Parts Accessories > Electrical Ignition Components > Other Electrical Ignition Components

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