BIKEMAN PERFORMANCE MN-Y9AS Durability Engine Vb Kit MN/Y9AS 146

( Brand: Bikeman Performance ), ( Manufacturer Part Number: MN/Y9AS ), ( Compatible Model: 800 Assault Rmk 146 ), ( Bundle Description: 1 Pc Genuine Bikeman Durability Kits ), ( Type: Durability Kits ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review BIKEMAN PERFORMANCE Mn/y9as Durability Kit Polaris 146 Engine Vb fits ASSAULT RMK 800 2010

The **Bikeman Performance MN/Y9AS Durability Kit for the 2010 Polaris 800 Assault RMK 146 Engine (V-Belt)** is a meticulously engineered upgrade package designed to enhance the longevity, performance, and reliability of your high-performance off-road machine. Crafted for the demanding conditions of aggressive riding, this kit addresses the critical wear points of the Polaris 800 Assault s drivetrain, ensuring seamless power transfer while minimizing premature failure. At its core, the kit features a **high-grade, reinforced V-belt** engineered with durable, abrasion-resistant materials that resist stretching, fraying, and heat degradation common issues that plague standard belts under heavy loads. The belt s precision-cut teeth and optimized tension profile work in tandem with the RMK 146 engine s torque output, reducing slippage and maximizing efficiency, even during extreme acceleration, deceleration, or prolonged high-load operations. Complementing the belt is a **heavy-duty tensioner system**, featuring a robust spring mechanism and corrosion-resistant components to maintain consistent belt tension, preventing premature wear on the pulleys and reducing the risk of catastrophic failure during critical moments.

Beyond the belt and tensioner, this kit includes **upgraded pulleys** designed to withstand the relentless forces of off-road use, with reinforced hubs and precision-machined grooves that align perfectly with the V-belt s profile. These pulleys are engineered to minimize backlash and vibration, further protecting the engine s drivetrain components such as the alternator, water pump, and power steering from unnecessary stress. The kit also incorporates **high-temperature grease** specifically formulated to withstand the extreme heat generated by the RMK 146 s high-revving, turbocharged performance, ensuring smooth operation and reducing friction-induced wear. For added durability, the components are treated with a **corrosion-resistant coating**, making them ideal for riders who push their machines through mud, water, and harsh terrain where salt, moisture, and debris can accelerate degradation.

Installation of the Bikeman Performance Durability Kit is straightforward, thanks to a design that prioritizes compatibility and ease of use. The kit includes all necessary hardware, such as bolts, washers, and seals, ensuring a clean, professional fit without the need for additional modifications. Whether you re a competitive rider seeking an edge in endurance events or an enthusiast who demands reliability for weekend adventures, this kit transforms your 2010 Polaris 800 Assault into a more resilient, high-performance machine. By extending the life of your drivetrain and reducing maintenance downtime, the MN/Y9AS Durability Kit not only preserves the integrity of your engine but also allows you to focus on what matters most riding harder, longer, and with confidence.

### Pros and Cons of the Bikeman Performance MN/Y9AS Durability Kit for a 2010 Polaris 800 Assault (RMK 146 Engine, VB)

1. **Enhanced Durability** The kit is designed to reinforce critical components of the engine, particularly the crankshaft, connecting rods, and other high-stress areas. This can extend the lifespan of the engine, especially if the bike is used aggressively or in demanding conditions.

2. **Improved Performance** Some durability kits are engineered to optimize internal engine components, which may lead to better power delivery, smoother operation, or reduced wear over time. The MN/Y9AS kit is specifically tailored for the RMK 146 engine, suggesting a focus on compatibility and performance tuning.

3. **Protection Against Common Failures** The 2010 Polaris 800 Assault is known for certain failure points, such as crankshaft or rod issues, especially under heavy loads or in extreme conditions. This kit may help mitigate those risks by reinforcing weak points.

4. **Aftermarket Support** Bikeman Performance is a well-regarded brand in the off-road and ATV modification community. Their kits are often backed by customer support, warranties, or installation guidance, which can be reassuring for buyers.

5. **Potential Cost Savings** While the upfront cost of the kit is significant, reinforcing the engine could prevent costly repairs down the line. If the bike is used frequently or in harsh conditions, the long-term savings may outweigh the initial investment.

6. **Customization and Tuning Potential** Some durability kits are compatible with other performance modifications, allowing for further tuning of the engine. This could be beneficial for riders looking to push their bike s limits.

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1. **High Cost** Durability kits are not cheap, and the MN/Y9AS kit for a Polaris 800 Assault will likely cost several hundred dollars. For some riders, this may be a significant expense, especially if they are not planning extensive use of the bike.

2. **Installation Complexity** Installing a durability kit often requires disassembling the engine to some extent. This may require professional installation, adding to the cost, or it could be a challenging DIY project for inexperienced mechanics.

3. **Mixed Reviews on Effectiveness** While some riders report significant improvements in engine longevity and performance, others may not see noticeable benefits. The effectiveness can vary depending on riding conditions, maintenance habits, and how the kit is installed.

4. **Potential for Overkill** If the bike is not used aggressively or in extreme conditions, the benefits of the kit may be minimal. For casual riders, the cost may not be justified unless they are specifically targeting longevity or performance gains.

5. **Voided Warranty** Modifying the engine with an aftermarket kit could void the original manufacturer s warranty. Polaris may not cover repairs if issues arise post-installation, leaving the rider responsible for any costs.

6. **Risk of Improper Installation** If the kit is not installed correctly, it could lead to further damage or even catastrophic failure. Poor installation might negate any benefits and could void the kit s warranty.

7. **Limited Long-Term Data** The durability of the kit over many years of use is not always well-documented. Some riders may experience issues after extended periods, requiring additional maintenance or replacement parts.

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The **Bikeman Performance MN/Y9AS Durability Kit** is a worthwhile investment for riders who plan to use their **2010 Polaris 800 Assault aggressively**, particularly in demanding conditions such as rock crawling, heavy-duty hauling, or frequent high-RPM operation. The kit s reinforcement of critical engine components can significantly extend the life of the RMK 146 engine and improve reliability, making it a strong consideration for performance-oriented riders.

However, for **casual or light-use riders**, the cost may not be justified unless they are specifically targeting long-term durability. In such cases, regular maintenance, oil changes, and proper cooling system care might be sufficient to keep the engine running smoothly without the need for a durability kit.

- **If you ride hard, push the bike to its limits, or operate in extreme conditions**, the MN/Y9AS kit is a **strong recommendation** to protect your investment and extend engine life.

- **If you use the bike lightly or primarily for recreational purposes**, prioritize **proper maintenance** (oil changes, cooling checks, etc.) and consider whether the kit s cost is justified by your riding habits.

- **Ensure professional installation** if you are not experienced with engine modifications, as improper fitting could lead to issues.

- **Check for warranty coverage** and be aware that aftermarket modifications may void Polaris s original warranty.

Ultimately, the decision depends on your riding style, budget, and long-term goals for the bike. For those who demand performance and longevity, the kit is a valuable upgrade. For others, it may be an unnecessary expense.

Details:

BikeMan Durability Kit for 2010 Polaris 800 Assault RMK 146 - Engine vb: Status: In Stock.

specifications exhaustsnowmobilee:

• for models: Rmk, 800, Assault
• for makes: Polaris
• for years: 2010
• brand: Bikeman Performance
• mpn: Mn/y9as
• compatible model: 800 Assault Rmk 146
• bundle description: 1 Pc Genuine Bikeman Durability Kits
• type: Durability Kits
• core charge: Free No Core Charge
• fitment type: Direct Replacement

returns exhaustsnowmobilee:

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

general exhaustsnowmobilee:

• condition: New
• Parts Accessories > Snowmobile Parts > Exhaust

payments exhaustsnowmobilee:

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

seller exhaustsnowmobilee:

• city: Multiple warehouses
• # reviews: 17825
• rating: 98.8%

shipping exhaustsnowmobilee:

• type: Fixed
• class: Standard
• transit: 2-5 Days
• cost: $0.00
• service: Standard

offer exhaustsnowmobilee:

• availability: In Stock
• sold: 0
• quantity: 1
• started: February 23, 2026
• options: Ship-to-home

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