POLARIS 2870613 Idler Wheel Nos Kit 4TH

( Manufacturer Part Number: 2870613 ), ( Part Type: Idler Wheel )

Review POLARIS Kit 4th Idler Wheel Nos

The **Polaris 2870613 Kit for the 4th Idler Wheel** is a meticulously engineered replacement assembly designed to restore optimal performance and longevity to Polaris ATVs equipped with the specific drivetrain configuration requiring this component. This kit is a comprehensive solution, combining high-quality, durable parts to address wear and tear on the 4th idler wheel assembly, which plays a critical role in maintaining proper chain tension, alignment, and overall drivetrain efficiency. The idler wheel, often subjected to constant friction and stress during off-road use, can degrade over time, leading to premature chain wear, misalignment, or even catastrophic failure if not replaced promptly. The **2870613 Kit** includes a **new 4th idler wheel**, typically forged from hardened steel or a high-grade polymer composite for enhanced durability and resistance to bending or cracking, ensuring it can withstand the rigors of rugged terrain and heavy loads. Additionally, the kit may incorporate a **replacement idler wheel shaft**, often featuring precision-machined bearings or bushings to minimize friction and reduce wear on the surrounding drivetrain components. Some versions of this kit also include **new seals, spacers, or mounting hardware**, all of which are designed to fit seamlessly with the original equipment manufacturer (OEM) specifications, guaranteeing a snug, secure installation that prevents unnecessary play or misalignment. Whether used for routine maintenance or as part of a larger drivetrain overhaul, this kit is engineered to extend the life of the ATV s drivetrain, improve chain longevity, and reduce the risk of costly repairs down the road. Polaris has designed this component to be user-friendly, with straightforward installation procedures that can be completed with basic tools, making it an ideal choice for both seasoned mechanics and DIY enthusiasts looking to maintain their vehicle s peak condition. By investing in the **2870613 Kit**, riders can ensure their ATV remains reliable, responsive, and ready for the next adventure, whether tackling trails, hunting expeditions, or utility work.

### **Pros and Cons of buying a Polaris 2870613 Kit (4th Idler Wheel, NOS)**

1. **New Old Stock (NOS) Quality** The kit is described as NOS, meaning it is brand-new, unused, and in original packaging. This ensures high-quality components without wear or damage from prior use.

2. **Direct Replacement Part** The 2870613 kit is designed specifically for Polaris vehicles, ensuring a perfect fit and compatibility with the intended model.

3. **Durability and Performance** Polaris parts are engineered for reliability, meaning this idler wheel kit should provide long-lasting performance with minimal maintenance.

4. **Warranty Coverage** Since it s new, the kit likely comes with a manufacturer s warranty, offering protection against defects.

5. **Easier Installation** Being a complete kit, it includes all necessary components (bearings, seals, etc.), simplifying the replacement process compared to sourcing individual parts.

6. **Prevents Further Damage** A failing idler wheel can cause excessive chain wear or misalignment, so replacing it proactively avoids costly repairs down the line.

7. **Compatibility with Aftermarket Upgrades** If you plan to modify your Polaris (e.g., wider chains, different sprockets), a fresh idler wheel ensures smooth operation with new components.

1. **Cost** As a NOS kit, it may be more expensive than used or refurbished alternatives, especially if sourced from an authorized dealer.

2. **Potential Overkill for Light Use** If your Polaris is used infrequently or under mild conditions, the kit may be more than necessary, leading to unnecessary expenditure.

3. **Installation Complexity** While a kit simplifies the process, replacing an idler wheel still requires mechanical skill, tools, and time. Inexperienced users may need professional help, adding labor costs.

4. **Chain and Sprocket Wear Consideration** If your chain or sprockets are already worn, replacing just the idler wheel may not fully resolve drivetrain issues, requiring additional maintenance.

5. **Availability of Alternatives** Some aftermarket or refurbished parts may offer similar performance at a lower cost, though with varying quality guarantees.

6. **Potential for Misalignment** If not installed correctly, the new idler wheel could cause chain tension issues or premature wear on other components.

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### **Conclusion**

The **Polaris 2870613 NOS Idler Wheel Kit** is a strong choice for owners seeking a reliable, high-quality replacement that ensures proper drivetrain function. Its benefits such as durability, warranty coverage, and ease of installation make it ideal for those prioritizing long-term performance and avoiding future problems. However, the higher cost and the need for proper installation expertise may deter budget-conscious or inexperienced users.

If your Polaris is heavily used, shows signs of idler wheel wear, or you re planning other drivetrain upgrades, this kit is a **highly recommended investment**. For lighter-use vehicles or those on a tight budget, weighing the cost against the need for replacement is advisable.

- You need a direct, high-quality replacement for optimal performance.

- You re willing to invest in long-term reliability.

- You have the mechanical skill (or access to a mechanic) to install it correctly.

- You re on a limited budget.

- Your Polaris sees minimal use.

- You re unsure about installation and prefer professional help.

Details:

Kit 4th Idler Wheel - POLARIS NOS Part Number 2870613Serial 108559Includes What Is Shown In Pictures NOS Part 2870613 Serial 108559 Includes.

part #: 2870613 price

• $19.99

specifications snowmobileshocksoi:

• for makes: Polaris
• mpn: 2870613
• part type: Idler Wheel

offer snowmobileshocksoi:

• options: Ship-to-home
• started: March 25, 2026
• sold: 0
• quantity: 1
• availability: In Stock

shipping snowmobileshocksoi:

• carrier: UPS
• cost: $7.00
• type: Fixed
• class: Standard
• transit: 2-6 Days
• service: UPS Ground

returns snowmobileshocksoi:

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

seller snowmobileshocksoi:

• rating: 99.6%
• # reviews: 5075
• city: Baraboo, Wisconsin

general snowmobileshocksoi:

• condition: Used
• Parts Accessories > Snowmobile Parts > Shocks Suspension

payments snowmobileshocksoi:

• other
• wallet: Apple-pay
• credit card: Diners-club

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