NICHE
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Niche 660cc Big Bore Engine Cylinder for Yamaha Raptor Grizzly Rhino 660R 5KM-11310-00-00 (102mm)
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Niche 660cc Big Bore Engine Cylinder for Yamaha Raptor Grizzly Rhino 660R 5KM-11310-00-00 (102mm)
Upgrade your Yamaha Raptor, Grizzly, or Rhino with the high-performance NICHE 686cc Big Bore Engine Cylinder for improved power and performance.
Niche 660cc Big Bore Engine Cylinder for Yamaha Raptor Grizzly Rhino 660R 5KM-11310-00-00 (102mm)
Item #: 21833545

Niche 660cc Big Bore Engine Cylinder for Yamaha Raptor Grizzly Rhino 660R 5KM-11310-00-00 (102mm)

Item #: 21833545

WST 345

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Upgrade your Yamaha Raptor, Grizzly, or Rhino with the high-performance NICHE 686cc Big Bore Engine Cylinder for improved power and performance.
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What Stands Out

Enhanced Performance
Boost your Yamaha's power with this 102mm big bore cylinder, delivering increased torque and acceleration for a thrilling ride across varied terrains.
Tailored Fit
Engineered specifically for Yamaha Raptor, Grizzly, and Rhino models, ensuring easy installation and perfect compatibility without the need for modifications.
Durable Construction
Crafted from high-quality materials, this cylinder offers exceptional durability and reliability, designed to withstand the demands of off-road adventures.

Product Details

Shop the best prices for NICHE 686cc Big Bore Engine Cylinder for Yamaha Raptor, Grizzly, and Rhino 660R 5KM-11310-00-00 at Ubuy Samoa. Upgrade your Yamaha with this high-quality engine accessory today!
  • Cylinder bore size of 102mm for big bore performance
  • Replaces OEM part number: Yamaha 5KM-11310-00-00
  • Compatible with Yamaha 2001-2005 Raptor 660R, 2002-2008 Grizzly 660, and 2004-2007 Rhino 660
  • Constructed with aluminum material for durability
  • Cylinder sleeve coating: none
Brand NameNICHE
UPC803467007854
ManufacturerMishon Inc
Unit Count1.0 Count
Model519-CCY2232L
Part Number519-CCY2232L
Item Weight0.5 Pounds (230 grams)
Material TypeADC12 Aluminum A383
ColorGray
BrandNICHE
MaterialADC12 Aluminum A383

Who Should Buy?

Suitable For
  • Performance Enthusiasts

    Ideal for users seeking enhanced performance and power in their Yamaha Raptor, Grizzly, or Rhino models.

  • Off-Road Riders

    Great choice for off-road riders needing durability and reliability in challenging terrains with their Yamaha vehicles.

  • Engine Customizers

    Perfect for mechanics or DIY enthusiasts looking to upgrade engine components for better torque and speed.

Not Suitable For
  • Casual Users

    Not suitable for occasional riders focused on standard performance without needing significant engine upgrades.

Product Description

Niche 660cc Big Bore Engine Cylinder for Yamaha Raptor Grizzly Rhino 660R 5KM-11310-00-00 (102mm)

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What are the benefits of upgrading to the NICHE Big Bore Engine Cylinder 102mm for Yamaha Raptor Grizzly Rhino 660R?

    Answer: Upgrading to the NICHE Big Bore Engine Cylinder 102mm significantly enhances engine performance by increasing displacement, which leads to higher horsepower and torque. This upgrade is ideal for those looking to improve acceleration and overall speed, especially in off-road conditions. A bigger bore allows for better airflow and combustion efficiency, resulting in an optimized riding experience. It's particularly beneficial for enthusiasts who use their vehicles for racing or heavy-duty tasks.
  • Question: Is the NICHE Big Bore Engine Cylinder compatible with all Yamaha Raptor, Grizzly, and Rhino models?

    Answer: The NICHE Big Bore Engine Cylinder is specifically designed for Yamaha Raptor, Grizzly, and Rhino models equipped with the 660R engine. Compatibility is focused on the 660R engine configuration. Always consult your specific vehicle specifications and owner's manual to ensure proper fit and compatibility before making a purchase. This ensures that you achieve the desired performance improvement without risking engine damage.
  • Question: How do I install the NICHE Big Bore Engine Cylinder on my Yamaha Raptor?

    Answer: Installing the NICHE Big Bore Engine Cylinder involves several steps, including removing the existing cylinder, preparing the engine block, and meticulously fitting the new cylinder. It's crucial to follow a detailed guide or consult a professional mechanic to avoid issues during installation. The process typically requires basic mechanical skills and tools, making it suitable for DIY enthusiasts who are comfortable working on their ATV engines.
  • Question: What modifications should I consider when installing a big bore engine cylinder?

    Answer: When installing the NICHE Big Bore Engine Cylinder, you may need to adjust other components like the ECU, fuel injectors, and exhaust systems to match the increased power output. Upgrading the carburetor or adding a performance exhaust can also enhance overall performance. These modifications help in optimizing the engine's efficiency and ensure that the vehicle operates within safe parameters, especially under high loads or during competitive riding.
  • Question: What should I expect in terms of power increase from this big bore engine cylinder?

    Answer: The NICHE Big Bore Engine Cylinder typically delivers a noticeable increase in horsepower and torque, contributing to improved throttle response and acceleration. While the exact power gain can vary based on other modifications and tuning, users often report enhancements that make riding more exhilarating. This is particularly useful for riders using their ATVs for competitive purposes or rugged terrains where additional power is advantageous.
  • Question: Are there any special maintenance requirements after installing a big bore cylinder?

    Answer: After installing the NICHE Big Bore Engine Cylinder, it's crucial to follow a more rigorous maintenance schedule. Regular oil changes, monitoring coolant levels, and checking for any signs of wear or leaks are essential to ensure longevity. It's also advisable to periodically check the tuning settings, especially if you’ve made additional upgrades. This proactive approach can keep your engine running smoothly and enhance performance over time.
  • Question: Will I notice a difference in fuel efficiency with a big bore engine cylinder?

    Answer: Generally, customers might experience decreased fuel efficiency after installing a big bore cylinder, especially if they frequently operate the engine at high RPMs for performance reasons. However, with proper tuning and modifications, it’s possible to strike a balance between performance and fuel efficiency. Riders who engage in recreational riding can enjoy a powerful boost while keeping efficiency in mind by moderating throttle use.
  • Question: Can the NICHE Big Bore Engine Cylinder be used for racing purposes?

    Answer: Absolutely, the NICHE Big Bore Engine Cylinder is an excellent choice for racing applications. Its design focuses on maximizing power and torque, providing racers with the edge needed for competitive scenarios. Many racers prefer this upgrade for improved acceleration and overall speed on tracks or off-road conditions. However, it’s important to ensure that your vehicle complies with the specific regulations of the racing events you participate in.
  • Question: Where can I buy NICHE Big Bore Engine Cylinder 102mm for Yamaha Raptor Grizzly Rhino 660R 5KM-11310-00-00 in Samoa?

    Answer: You can purchase the NICHE Big Bore Engine Cylinder 102mm for Yamaha Raptor Grizzly Rhino 660R 5KM-11310-00-00 from Ubuy in Samoa. Ubuy offers a convenient platform for obtaining this specialized engine component, ensuring that you receive a quality product that fits your needs. Shopping through Ubuy provides access to a reliable source with various shipping options to enhance your purchasing experience.

NICHE Cylinder Heads Editorial Review

The NICHE 686cc 102mm Big Bore Engine Cylinder for Yamaha Grizzly 660 Raptor 660R Rhino 660 appears to be a hit-or-miss product based on customer reviews. Some customers have had positive experiences, stating that the cylinder fit perfectly on their Yamaha Raptor 660 and that their four-wheeler now runs like new. These customers have not encountered any issues with the cylinder and are satisfied with its performance. However, there are also negative reviews that highlight significant problems with the product. One customer mentioned that after assembling the cylinder, a blown head gasket occurred shortly after starting and shutting off the engine, only to find that the sleeve had dropped in the cylinder. This customer had to turn to a hydraulic press and milling machine to fix the poor workmanship of the cylinder before it could run properly. Another customer noted that they had to machine a significant amount off the cylinder before reassembling it with two base gaskets. Based on these mixed reviews, it seems that the NICHE 686cc 102mm Big Bore Engine Cylinder may not be a reliable option for those who do not have the necessary tools and skills to address potential issues with the product. Potential buyers should carefully Consider their options and ensure they have access to proper support and resources before purchasing this cylinder.

Customer Reviews & Ratings

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Pros

  • Some customers have reported a perfect fit on their Yamaha Raptor 660.
  • Others have mentioned that their four-wheeler runs like new after using this cylinder.

Cons

  • Several customers have experienced blown head gaskets and dropped sleeves, requiring additional repairs and adjustments.

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Mohammad
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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

23 July 2026 · via Trustpilot
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”

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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”

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WST 345

Order now and get it around Friday, August 14

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Features & Benefits

  • Suitable for Yamaha Raptor 660R (2001-2005), Grizzly 660 (2002-2008), and Rhino 660 (2004-2007).
  • Big Bore Cylinder with a bore size of 102mm for enhanced power and performance.
  • Made of durable aluminum material.
  • Direct replacement for the OEM part number: Yamaha 5KM-11310-00-00.
  • No cylinder sleeve coating applied for unrestricted power delivery.

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