1. Electrical Components ATV Parts For Sale
  2. sku: 23601375532032853
  3. YAMAHA 3B4-859AO-10-00

YAMAHA 3B4-859AO-10-00 Power Steering Control Module Unit 3B4-859A0-10

fits model: Eps, 700, Grizzly. make: Yamaha. year: 2007–2014.

3b4-859ao-10-00 Yamaha 07-14 Grizzly 700 Eps Power Steering Control Module Unit Oem 3b4-859a0-10

( Manufacturer Part Number: 3B4-859AO-10-00 ), ( Part Type: Steering Control Module Unit ), ( Compatible Model: Grizzly 700 Eps ), ( Mounting Style: Bolt-on, Screw-on ), ( Compatible Make: Yamaha Grizzly 550/700 ), ( Machine Type: Atv ), ( Oe/oem Part Number: 3b4-859a0-10-00 ), ( Material: Aluminum ), ( Country Of Origin: Japan )

Review YAMAHA Power Steering Control Module Unit Oem fits GRIZZLY EPS 700 2007–2014

The **Yamaha 3B4-859AO-10 (07-14 Grizzly 700 EPS Power Steering Control Module)** is a high-performance, precision-engineered component designed exclusively for Yamaha s 2007 through 2014 model year Grizzly 700 EPS (Electric Power Steering) models. This critical control module serves as the brain of the vehicle s power-assisted steering system, ensuring seamless, responsive, and efficient operation while enhancing overall handling and driver engagement. Built to Yamaha s rigorous standards, this module integrates advanced electronic controls to regulate steering torque, adjust assist levels dynamically, and communicate seamlessly with the vehicle s ECU (Engine Control Unit) and other onboard systems. Its robust construction features a durable, sealed housing that protects internal circuitry from environmental contaminants, moisture, and electrical interference, guaranteeing long-term reliability even in demanding off-road or rugged terrain conditions. The module s compatibility with the Grizzly 700 s EPS system allows for precise steering feedback, reducing driver fatigue during extended use and improving maneuverability in both on-road and off-road scenarios. Whether navigating tight trails, steep inclines, or rough terrain, this control module delivers consistent performance, making it an essential replacement for any Grizzly 700 owner seeking to restore optimal steering functionality or upgrade their vehicle s handling capabilities. With its direct OEM (Original Equipment Manufacturer) specifications, this part ensures a perfect fit and seamless integration, eliminating the need for custom modifications or additional adjustments. Ideal for mechanics, DIY enthusiasts, or fleet operators maintaining a fleet of Yamaha off-road vehicles, this module is a testament to Yamaha s commitment to innovation and durability in the design of its iconic utility vehicles.

### **Pros and Cons of buying a Yamaha 3B4-859AO-10-00 (Grizzly 700 EPS Power Steering Control Module, Unit 3B4-859A0-10)**

#### **Pros:**

1. **Direct OEM Replacement** This part is an original Yamaha component, ensuring a perfect fit and compatibility with the Grizzly 700 EPS system. It will function identically to the factory module, reducing the risk of electrical or mechanical issues caused by aftermarket mismatches.

2. **Reliability and Durability** Yamaha s OEM parts are built to withstand the demands of heavy-duty use, including off-road conditions. The power steering control module is designed for longevity, reducing the likelihood of premature failure.

3. **Warranty Coverage** Purchasing directly from Yamaha or an authorized dealer often includes a warranty, providing peace of mind against defects or early wear. Some third-party sellers may also offer warranties, though terms vary.

4. **Compatibility with EPS System** The Grizzly 700 s electric power steering (EPS) relies on precise sensor and control module communication. An authentic Yamaha module ensures seamless integration with the vehicle s steering assist system, preventing erratic steering or loss of power assist.

5. **Easier Troubleshooting** If the module fails, having an OEM part simplifies diagnostics. Dealers and mechanics are more familiar with Yamaha s proprietary systems, making repairs faster and more cost-effective.

6. **Resale Value Preservation** Installing an OEM part maintains the vehicle s original specifications, which can be beneficial if you plan to sell the Grizzly 700 in the future. Buyers often prefer fully stock configurations.

7. **Access to Technical Support** Yamaha s customer service and dealer network can provide guidance on installation, calibration, or troubleshooting, which may not be available for aftermarket alternatives.

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#### **Cons:**

1. **Higher Cost** OEM parts are significantly more expensive than aftermarket or refurbished alternatives. The price reflects Yamaha s brand reputation, quality, and warranty support, which may not be necessary for all buyers.

2. **Limited Availability** OEM parts may not be as widely stocked as aftermarket options, requiring orders through Yamaha dealers or specialized suppliers. This can lead to longer wait times for delivery.

3. **Potential Overkill for Some Users** If the module is failing due to a minor issue (e.g., wiring damage, sensor failure, or software glitch), replacing the entire control unit may be more expensive than diagnosing and fixing the root cause. A mechanic might recommend testing other components first.

4. **Installation Complexity** While the module itself is straightforward to replace, recalibration of the EPS system may be required after installation. This could involve connecting diagnostic tools or resetting the vehicle s steering assist settings, which some owners may find challenging.

5. **No Upgrades or Customization** Unlike aftermarket modules, this part does not offer performance enhancements or tunability. If you re looking to modify steering feel or responsiveness, an OEM module won t provide those options.

6. **Risk of Counterfeit Parts** If purchasing from a non-authorized seller (e.g., eBay, Facebook Marketplace, or untrusted online retailers), there s a risk of receiving a fake or refurbished part that doesn t meet OEM standards. Always verify the seller s authenticity.

7. **Depreciation Factor** Like all OEM parts, the module s value depreciates over time. If the Grizzly 700 is an older model, the cost may not be justified unless the part is critical to operation.

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### **Conclusion**

Buying the **Yamaha 3B4-859AO-10-00 (3B4-859A0-10) EPS Power Steering Control Module** is the best choice if:

- You prioritize **reliability, compatibility, and warranty coverage** over cost savings.

- The module is confirmed to be the root cause of steering issues (diagnosed by a professional).

- You want to maintain the Grizzly 700 s original specifications for resale or long-term use.

- You re comfortable paying a premium for a part that integrates seamlessly with Yamaha s systems.

However, if:

- You re on a tight budget and the module is relatively inexpensive to replace (e.g., due to a wiring issue or sensor failure).

- You re unsure whether the module is the actual problem (requiring diagnostics first).

- You re open to aftermarket or refurbished alternatives that offer similar performance at a lower cost.

- You plan to modify the steering system (e.g., for racing or aggressive off-roading), an OEM module may not be necessary.

---

### **Recommendation**

1. **Verify the Problem** Before purchasing, have a mechanic or Yamaha dealer diagnose the issue. A faulty sensor, loose wiring, or software error could be causing the EPS problems, making a module replacement unnecessary.

2. **Source from an Authorized Dealer** To avoid counterfeit parts, buy directly from Yamaha or a reputable dealer. Check for authenticity markings and warranty details.

3. **Consider Aftermarket Options (If Applicable)** If the module is only slightly more expensive than a high-quality aftermarket alternative (e.g., from brands like **Power Steering Products, ACDelco, or local specialty shops**), compare reviews and warranties. Some aftermarket modules are built to OEM standards and may offer better pricing.

4. **Budget for Installation** While the module itself is the main cost, factor in labor if you re not comfortable installing it yourself. Some dealers offer installation services.

5. **Check for Refurbished Units** Yamaha or dealers sometimes sell refurbished OEM modules at a discount. These are tested and restored to working condition, offering a middle ground between new and aftermarket parts.

6. **Document the Purchase** Keep receipts and warranty information in case of future issues. If the module fails within the warranty period, you can return it for replacement or refund.

**Final Verdict:** For most Grizzly 700 owners who value longevity and reliability, the **Yamaha 3B4-859AO-10-00 module is the safest and most effective choice**. However, weigh the cost against the potential savings from diagnostics or aftermarket parts to ensure it s the right decision for your situation.

Details:

The 07-14 Yamaha Grizzly 700 EPS Power Steering Control Module Unit OEM 3B4-859A0-10 is a high-quality, genuine. Check compatibility with the OE/OEM part number 3B4-859A0-10-00 for direct fit prior to purchase please. Designed for screw-on and bolt-on mounting on Yamaha Grizzly 550/700 ATV from the years 2007 -2014. This power steering control module unit ensures proper functioning and performance for your Yamaha ATV.

Made in Japan, this product is a direct fit replacement. This module is in good working condition and all plug ins are intact as they should be.

part #: 3b4859ao1000 prices

  • $94.62-$220.88

specifications electricacompone:

  • for models: Eps, 700, Grizzly
  • for makes: Yamaha
  • for years: 2007-2014
  • mpn: 3b4-859ao-10-00
  • part type: Steering Control Module Unit
  • compatible model: Grizzly 700 Eps
  • mounting style: Bolt-on, Screw-on
  • compatible make: Yamaha Grizzly 550/700
  • machine type: Atv
  • oe/oem part number: 3b4-859a0-10-00
  • material: Aluminum
  • country of origin: Japan

returns electricacompone:

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

offer electricacompone:

  • started: February 18, 2026
  • sold: 0
  • quantity: 1
  • availability: In Stock
  • best offers: True
  • options: Ship-to-home

shipping electricacompone:

  • type: Calculated
  • service: USPS Ground Advantage
  • carrier: USPS
  • class: Standard
  • cost: $0.00
  • transit: 4-10 Days

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  • city: Cresco, Iowa
  • # reviews: 101

general electricacompone:

  • condition: Used
  • ATV, Side-by-Side UTV Parts Accessories > Electrical Ignition Components > Other Electrical Ignition Components
for models: eps, 700, grizzly, for makes: yamaha, for years: 2007-2014, part type: steering control module unit, compatible model: grizzly 700 eps, mounting style: bolt-on, screw-on, compatible make: yamaha grizzly 550/700, machine type: atv, oe/oem part number: 3b4-859a0-10-00, country of origin: japan,
category: atv parts > atv, side-by-side utv parts accessories > electrical ignition components, material: aluminum, sku: 23601375532032853,
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