There’s nothing more frustrating than feeling your Yamaha Grizzly 660’s steering go loose or unresponsive just when you’re out on the trails. That wobble or delay in turning can make riding unsafe and spoil the fun.
If you’ve faced this, you know how important it is to have a reliable steering rack and pinion system. Choosing the right replacement parts can bring your ATV back to life, making every ride smooth and safe again. In this article, we’ll explore the best rack and pinion options designed for the Yamaha Grizzly 660 and similar models.
Whether you need a full steering gear box or specific components like pinion bearings and differential kits, we’ve got you covered. Keep reading to find the perfect fit that will make your daily rides easier and more enjoyable.
Niche Steering Gear Box Rack & Pinion For Yamaha Rhino 450 660 700

The NICHE Steering Gear Box Rack & Pinion is ideal for owners of Yamaha Rhino 450, 660, and 700 models who are seeking a reliable and durable replacement part to restore or enhance their vehicle’s steering performance. This product is perfect for off-road enthusiasts, mechanics, and DIYers who value quality components and want to maintain optimal control and safety while driving their Yamaha Rhino.
Pros:
- High-quality construction by Mishon Inc ensures durability and long-lasting performance
- Precision engineering tailored specifically for Yamaha Rhino 450, 660, and 700 models
- Lightweight design at only 0.4 pounds improves handling without adding unnecessary bulk
- Compact dimensions (4.0 inches height, 4.3 inches width, 32.0 inches length) allow for easy installation and compatibility
- Finished in sleek black for a clean, professional look
Cons:
- Designed specifically for select Yamaha Rhino models, limiting cross-compatibility
- Installation may require mechanical expertise or professional assistance for some users
The NICHE Steering Gear Box Rack & Pinion stands out with its precise fit and robust build quality, which directly contributes to improved steering response and reliability. By replacing worn or damaged steering components with this OEM-quality part, users can experience smoother handling and enhanced control, especially in demanding off-road conditions. The lightweight yet sturdy design ensures that the vehicle’s steering system is not burdened, maintaining agility and maneuverability.
Manufactured by Mishon Inc, this steering gear box is crafted to meet strict industry standards, delivering consistent performance and durability. Its tailored dimensions and black finish not only provide functional benefits but also add to the aesthetic appeal under the hood. Overall, this product is a smart investment for anyone looking to maintain or upgrade their Yamaha Rhino’s steering system with a dependable and well-engineered component.
Replacement Steering Rack Pinion Assembly For Yamaha Rhino

The Replacement for YAMAHA RHINO 450 660 700 STEERING RACK PINION ASSEMBLY 5UG-F3400-00-00 is ideal for owners and mechanics of Yamaha Rhino 450, 660, and 700 models who need a reliable and efficient replacement part to restore or enhance their vehicle’s steering performance. If you are looking for a durable and compatible steering rack pinion assembly that ensures smooth handling and safety, this product is designed specifically for you.
Pros:
- Made by trusted brand C CLINK and manufacturer Shinerun, ensuring quality and reliability
- Direct replacement for Yamaha Rhino models 450, 660, and 700, guaranteeing perfect fit and easy installation
- Enhances steering responsiveness and stability for improved driving control
- Durable construction designed to withstand rough terrain and extended use
Cons:
- Limited to specific Yamaha Rhino models, not compatible with other vehicles
- Installation may require professional assistance for those unfamiliar with steering components
This steering rack pinion assembly is engineered to meet or exceed OEM specifications, providing a high-quality replacement that restores your vehicle’s steering system to optimal condition. Its robust construction ensures long-lasting performance, even under demanding off-road conditions, which is essential for maintaining control and safety on rugged trails. The precise fitment reduces installation time and helps prevent potential alignment issues, making it a practical choice for both DIY enthusiasts and professional mechanics.
With this replacement part, users benefit from improved steering accuracy and smoother handling, which directly translates to a safer and more enjoyable driving experience. The assembly’s compatibility with multiple Yamaha Rhino models makes it a versatile option for owners looking to maintain or upgrade their vehicle’s steering system. Overall, investing in this Replacement for YAMAHA RHINO 450 660 700 STEERING RACK PINION ASSEMBLY ensures dependable performance and peace of mind on every ride.
Gearshift Fan Gear Driven Compatible With Yamaha Grizzly 660 And Yamaha Rhino 660

The Gearshift Fan Gear Driven is ideal for owners of Yamaha Grizzly 660 (2002-2008) and Yamaha Rhino 660 (2004-2007) who are seeking a reliable replacement part to maintain or restore their vehicle’s performance. If you need a compatible and durable gear-driven fan gear that fits perfectly and ensures optimal cooling, this product is designed specifically for you.
Pros:
- Direct replacement for OEM parts 5KM-18146-00-00, 5KM-18191-00-00, and 5KM-18197-00-00
- Compatible with multiple Yamaha models, ensuring versatility
- Manufactured by trusted brand COOL STAR for quality assurance
- Durable construction designed to withstand tough off-road conditions
Cons:
- Limited compatibility restricted to specific Yamaha models and years
- Installation may require mechanical expertise or professional assistance
The Gearshift Fan Gear Driven by COOL STAR offers a precise fit for both the Yamaha Grizzly 660 and Yamaha Rhino 660. Its design ensures seamless integration with your vehicle’s existing components, which helps maintain efficient engine cooling and prevents overheating during demanding rides. The gear-driven mechanism enhances reliability compared to belt-driven alternatives, providing consistent performance over extended use.
Additionally, this replacement part is crafted with high-quality materials, ensuring durability even under challenging terrains and weather conditions. By choosing this fan gear, users benefit from reduced maintenance needs and prolonged engine life, making it a cost-effective solution for maintaining your Yamaha’s optimal functionality.
Caltric Rear Differential Pinion Bearing Nut Tool

The Caltric Rear Differential Pinion Bearing Nut Tool is ideal for ATV enthusiasts and mechanics who own a Yamaha Grizzly 660 YFM660 (2002-2008) and need a reliable tool for maintenance and repair tasks. If you frequently work on your ATV’s rear differential or require a precise fit for bearing nut adjustments, this tool is specifically designed to meet those needs with accuracy and durability.
Pros:
- Compatible specifically with Yamaha Grizzly 660 YFM660 models from 2002 to 2008
- Manufactured by Caltric, ensuring quality and reliability
- Compact dimensions (Height: 1.94 inches, Width: 1.94 inches, Length: 3.13 inches) make it easy to handle
- Lightweight at just 1.9 pounds, reducing user fatigue during use
- Designed to provide a secure grip on the pinion bearing nut for efficient installation and removal
Cons:
- Limited compatibility only with specific Yamaha Grizzly 660 models
- May require some mechanical knowledge for proper use
The Caltric Rear Differential Pinion Bearing Nut Tool is crafted to deliver precise fit and function, minimizing the risk of damage to the pinion bearing nut or surrounding components. Its design reflects a balance between durability and ease of use, making it a practical addition to any ATV maintenance toolkit. By using this tool, users can perform repairs and adjustments more efficiently, ensuring that their Yamaha Grizzly 660 operates smoothly and safely.
Thanks to its compact size and lightweight construction, this tool is convenient to store and transport, allowing mechanics and ATV owners to keep it on hand for quick fixes or routine servicing. The reliable manufacturing by Caltric also guarantees that the tool withstands repeated use, providing long-term value for those maintaining their ATV’s rear differential system.
Niche Differential Ring Pinion Gear Rebuild Kit For Yamaha Grizzly 660

The NICHE Differential Ring Pinion Gear Rebuild Kit is perfect for owners of the Yamaha 2002-2008 Grizzly 660 YFM660F who want a reliable and efficient solution to maintain or restore their vehicle’s differential system. Ideal for ATV enthusiasts and mechanics seeking a high-quality rebuild kit to ensure smooth operation and longevity of their differential gears.
Pros:
- Made by trusted manufacturer Mishon Inc ensuring durability and quality
- Compatible specifically with Yamaha Grizzly 660 models from 2002 to 2008
- Compact design with dimensions of 5.8 x 8.0 x 8.0 inches and lightweight at 0.5 pounds
- Easy to install, helping reduce downtime during repairs
- Gray color finish blends seamlessly with existing components
Cons:
- Limited compatibility only with specific Yamaha models
- May require professional installation for those unfamiliar with differential systems
This NICHE Differential Ring Pinion Gear Rebuild Kit offers a precise fit and high-quality materials that ensure your Yamaha Grizzly 660’s differential functions optimally. The kit’s robust construction helps in resisting wear and tear, extending the life of your vehicle’s drivetrain. Its lightweight design also contributes to easier handling and installation, making it a practical choice for maintenance or repair projects.
By investing in this rebuild kit, users benefit from improved differential performance, which translates to better traction and smoother rides in various terrains. The kit’s compatibility with multiple model years means that riders can maintain their ATVs with confidence, knowing the parts are specifically engineered for their vehicle. Overall, this kit enhances both the reliability and efficiency of the Yamaha Grizzly 660’s differential system.
Differential Lock Servo Actuator Motor

The NICHE Differential Lock Servo Actuator Motor is ideal for ATV enthusiasts and owners of 2002-2009 models of Yamaha Grizzly, Kodiak, and Rhino 450/660 who need a reliable replacement part to restore or enhance their vehicle’s differential locking system. If you are looking for a durable and precise actuator motor to ensure optimal performance and control during off-road adventures, this product is designed specifically for you.
Pros:
- High compatibility with 2002-2009 Yamaha Grizzly, Kodiak, and Rhino 450/660 models
- Compact and lightweight design (only 0.1 pounds)
- Durable black casing for protection against harsh environments
- Manufactured by Mishon Inc, ensuring quality and reliability
- Easy installation due to exact fit dimensions (4.0 x 5.0 x 6.0 inches)
Cons:
- Limited compatibility with other ATV brands and models
- Requires some mechanical knowledge for installation
The NICHE Differential Lock Servo Actuator Motor is engineered to provide precise control over the differential lock system, allowing for improved traction and maneuverability in challenging terrains. Its compact dimensions and lightweight design make it a seamless fit in your ATV without adding unnecessary bulk or weight. The black casing not only adds to the aesthetic appeal but also offers protection against dust, dirt, and moisture, which are common in off-road environments.
By integrating this actuator motor into your Yamaha ATV, you gain enhanced stability and confidence when navigating through mud, snow, or rocky paths. The quality manufacturing by Mishon Inc ensures long-lasting performance and reduces the risk of frequent replacements. Overall, this product offers a practical and effective solution to maintain or upgrade your vehicle’s differential locking mechanism, making it a must-have for serious off-road riders.
Frequently Asked Questions
What Is The Rack And Pinion For Yamaha Grizzly 660?
The Rack and Pinion is a steering gear assembly for Yamaha Grizzly 660. It ensures smooth, precise steering control and replaces worn-out parts.
Which Models Are Compatible With This Yamaha Steering Rack?
It fits Yamaha Rhino 450, 660, 700 (2004-2007) and Grizzly 660 (2002-2008) models, offering broad compatibility.
How Does The Differential Pinion Bearing Nut Tool Help?
This tool aids in removing and installing the rear differential pinion bearing nut. It ensures proper torque and prevents damage.
What Does The Differential Ring Pinion Gear Rebuild Kit Include?
The rebuild kit contains essential gears and components to restore the Yamaha Grizzly 660 differential’s performance and extend lifespan.
Can The Differential Lock Servo Actuator Motor Be Replaced Easily?
Yes, the actuator motor for models 2002-2009 can be replaced to restore proper differential lock functionality and improve off-road handling.
Conclusion
Choosing the right rack and pinion for your Yamaha Grizzly 660 ensures smooth steering and better control. This part fits models from 2002 to 2008, offering reliable replacement options. Using compatible gearboxes and rebuild kits helps maintain your ATV’s performance.
Proper maintenance of the steering system prevents costly repairs later. Whether you own a Grizzly or a Rhino, these parts support safe rides on tough trails. Installing quality components means your ATV stays responsive and easy to handle. Keep in mind, regular checks can extend the life of your steering assembly.
Simple upgrades like these improve your overall riding experience. Trusting well-made parts is key for durability and safety. Your Yamaha deserves parts designed specifically for it. This ensures a perfect fit and long-lasting function. Good steering means more fun and less stress on your adventures.

