1. ATV Transmission & Drivetrain Parts Deals
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  3. SUNSTAR MN/H891

SUNSTAR MN-H891 Front Steel Sprocket Drive Ua MN/H891

fits model: Yfz450x. make: Yamaha. year: 2010–2011.

H891 Sunstar Mn/h891 Steel Front Sprocket For 2010-2011 Yamaha Yfz450x - Drive Sprockets Ua

( Brand: Sunstar ), ( Manufacturer Part Number: MN/H891 ), ( Compatible Year: 2011 2010 ), ( Bundle Description: 1 Pc Genuine Sunstar Steel Front Sprockets ), ( Type: Steel Front Sprockets ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review SUNSTAR Mn/h891 Steel Front Sprocket Yamaha Drive Sprockets Ua fits YFZ450X 2010–2011

Introducing the Sunstar MN/H891 Steel Front Sprocket, an essential upgrade for your 2010-2011 Yamaha YFZ450X. Engineered with precision, this steel front sprocket is designed to deliver superior durability and performance to your ATV drive system.

The Sunstar MN/H891 Steel Front Sprocket boasts a robust, steel construction, which sets it apart from its competitors. Its hardwearing material is resistant to wear and tear, providing extended service life. By withstanding the rigors of off-road riding, this sprocket ensures your vehicle maintains optimal power transmission and keeps you moving smoothly over challenging terrain.

The tooth design of this Sunstar sprocket is specifically engineered to accommodate the unique requirements of the Yamaha YFZ450X. The teeth are meticulously machined to ensure perfect fitment and engagement with the rear sprocket. This results in efficient power transfer and minimal noise, making your ATV experience more enjoyable.

Furthermore, the Sunstar MN/H891 Steel Front Sprocket is designed to enhance your ATV's performance. Its tooth geometry provides excellent bite on the drive belt, ensuring maximum traction and acceleration. This translates to improved responsiveness, making your vehicle more agile and responsive on the trail.

Upgrading to the Sunstar MN/H891 Steel Front Sprocket is an investment in your ATV's longevity and performance. Its superior durability means fewer replacement costs, while its enhanced power transfer capabilities provide a more enjoyable riding experience. Replace your worn-out stock sprocket with this high-quality Sunstar component and take your Yamaha YFZ450X to the next level.

The Sunstar MN/H891 steel front sprocket is a popular aftermarket option for the 2010-2011 Yamaha YFZ450X. Here are some pros and cons to consider before making a purchase:

Pros:

1. Durability: The steel construction of the Sunstar MN/H891 sprocket makes it stronger and more durable than the OEM aluminum sprocket. This can help prevent damage from rocks or other debris, extending the life of the sprocket.

2. Weight Savings: Although it is made of steel, the Sunstar MN/H891 sprocket is still lighter than the OEM rear sprocket. This can help reduce unsprung weight, improving the handling and performance of the ATV.

3. Tooth Design: The Sunstar MN/H891 sprocket features a unique tooth design that provides better engagement with the rear sprocket, resulting in smoother and more efficient power transfer.

4. Customization: Replacing the stock sprocket with a Sunstar MN/H891 sprocket allows for more customization options, such as changing the final drive ratio for different riding conditions.

Cons:

1. Cost: The Sunstar MN/H891 sprocket is more expensive than the OEM aluminum sprocket. However, the durability and performance benefits may outweigh the additional cost for some riders.

2. Installation: Installing the Sunstar MN/H891 sprocket requires removing the drive belt, which can be a time-consuming and complex process for some riders.

3. Noise: Some riders have reported an increase in noise levels when using the Sunstar MN/H891 sprocket. This is likely due to the different tooth design and material, but it may not be a significant issue for all riders.

Conclusion:

The Sunstar MN/H891 steel front sprocket offers several benefits for the 2010-2011 Yamaha YFZ450X, including improved durability, weight savings, better tooth engagement, and customization options. However, it comes with a higher cost and a more complex installation process. Ultimately, whether or not the Sunstar MN/H891 sprocket is worth the investment depends on the individual rider's priorities and preferences.

Recommendation:

If you frequently ride in rough terrain or have experienced damage to the OEM sprocket, the Sunstar MN/H891 steel front sprocket is a worthwhile investment for the added durability and performance benefits. However, if you prioritize a quieter ride or are on a tight budget, the OEM aluminum sprocket may be a better choice for you.

specifications utvshift:

  • for models: Yfz450x
  • for makes: Yamaha
  • for years: 2010-2011
  • brand: Sunstar
  • manufacturer part number: MN/H891
  • compatible year: 2011 2010
  • bundle description: 1 Pc Genuine Sunstar Steel Front Sprockets
  • type: Steel Front Sprockets
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement

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returns utvshift:

  • policy: Returns Accepted
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  • time: 30 Days

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  • type: Fixed
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offer utvshift:

  • availability: In Stock
  • quantity: 1
  • started: November 9, 2025
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  • options: Ship-to-home

general utvshift:

  • condition: New
  • ATV, Side-by-Side UTV Parts Accessories > Transmission Drivetrain > Other Transmission Drivetrain Parts
for models: yfz450x, for makes: yamaha, for years: 2010-2011, compatible year: 2011 2010, bundle description: 1 pc genuine sunstar steel front sprockets, type: steel front sprockets, core charge: free no core charge, fitment type: direct replacement,
category: atv parts > atv, side-by-side utv parts accessories > transmission drivetrain > transmission drivetrain parts, sku: 9619744880844632,

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