1. Shocks & Suspension On Sale
  2. sku: 22363122529843891
  3. BALLS SCAL-PS777779-LS

BALLS SCAL-PS777779-LS Upper Shaft Jack Bearing Seal Kit All

fits model: Rmk, 800, Assault. make: Polaris. year: 2011–2014.

Scal-ps777779-ls All Balls 2011-2014 Polaris 800 Rmk Assault Upper Shaft Jack Bearing And Seal Kit

( Brand: Balls ), ( Manufacturer Part Number: SCAL-PS777779-LS ), ( Part Type: Bearing Seal Shaft )

Review BALLS All Polaris Upper Shaft Jack Bearing And Seal Kit fits ASSAULT RMK 800 2011–2014

The **Balls Scal-PS777779-LS 2011 2014 Polaris 800 RMK Assault Upper Shaft Jack Bearing Seal Kit** is a meticulously engineered replacement assembly designed to restore peak performance and longevity to the upper shaft jack bearing and seal system on your Polaris 800 RMK Assault model. This high-quality kit is crafted to address common wear issues in the jack bearing assembly, ensuring smooth articulation, reduced friction, and enhanced durability for both off-road adventures and high-performance riding. The kit includes a precision-machined jack bearing, a robust seal designed to withstand extreme pressures and temperatures, and a durable shaft sleeve to prevent premature degradation. Built to meet or exceed OEM specifications, this kit features a sealed bearing assembly that minimizes contamination from dirt, debris, and moisture, which are primary culprits in premature bearing failure. The seal is engineered with a flexible yet resilient material that maintains a tight fit over the shaft, preventing leaks and ensuring consistent lubrication for extended service life. Whether you're tackling rough terrain, performing aggressive wheelies, or simply maintaining your ride for optimal handling, this kit provides a straightforward and effective solution to prevent binding, squeaking, or complete bearing failure. Installation is straightforward, requiring only basic tools, and the kit s compatibility with the 2011 2014 Polaris 800 RMK Assault ensures a perfect fit without the need for modifications. By upgrading to this kit, riders can eliminate the frustration of a failing jack bearing, reduce maintenance downtime, and enjoy the confidence of a fully functional suspension system that keeps up with the demands of your riding style.

### **Pros and Cons of buying a Balls Scal-PS777779-LS 2011-2014 Polaris 800 RMK Assault Upper Shaft Jack Bearing Seal Kit**

#### **Pros:**

1. **Direct Fitment** This kit is specifically designed for the 2011-2014 Polaris 800 RMK Assault model, ensuring compatibility without modifications. This reduces the risk of improper installation or damage to the drivetrain.

2. **High-Quality Components** Balls Manufacturing is a well-regarded brand in the off-road and ATV industry, known for durable and reliable parts. The kit includes a jackshaft bearing and seal, which are critical components for smooth drivetrain operation.

3. **Prevents Premature Wear** The jackshaft bearing and seal are prone to wear over time, especially in heavy-duty or off-road applications. Replacing them proactively can prevent costly drivetrain damage, such as chain slippage, bearing failure, or transmission issues.

4. **Easy Installation** The kit is designed for straightforward installation, typically requiring basic tools and mechanical knowledge. Many users report that it can be installed in a few hours with minimal effort.

5. **Cost-Effective Solution** Compared to the potential cost of repairing or replacing a damaged jackshaft or transmission, this kit offers a budget-friendly alternative. It extends the lifespan of your ATV s drivetrain without requiring major overhauls.

6. **Improved Performance** A properly functioning jackshaft bearing and seal ensure smoother power transfer, reducing vibration and noise while riding. This can enhance overall ride comfort and handling.

7. **Warranty and Support** Balls Manufacturing often provides warranties or customer support for their products, offering peace of mind in case of defects or installation issues.

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#### **Cons:**

1. **Limited Availability** Depending on the region, this specific kit may not be readily available in local stores. Online retailers like Amazon, RockAuto, or specialty ATV parts suppliers may be the primary sources, which could introduce shipping delays.

2. **DIY Installation Risk** While the installation is generally straightforward, inexperienced mechanics might encounter challenges, such as misalignment or improper sealing. Incorrect installation could lead to premature failure or damage to other components.

3. **Price Sensitivity** The cost of the kit may be a concern for budget-conscious buyers, especially if they are not experiencing immediate symptoms of bearing or seal failure. However, the long-term benefits often outweigh the upfront expense.

4. **Compatibility Doubts** Although the kit is advertised for the specified models, there is always a slight risk of fitment issues if the ATV has been heavily modified or has unique drivetrain variations. Double-checking the part numbers and model years is essential.

5. **Alternative Brands** Other brands may offer similar kits at slightly different prices or with additional features (e.g., reinforced seals or extended warranties). Buyers should compare options to ensure they are getting the best value.

6. **Maintenance Requirement** This kit addresses specific wear points but does not replace routine maintenance such as chain lubrication, sprocket inspection, or transmission fluid changes. Neglecting these can still lead to drivetrain issues.

7. **Potential Overkill for Light Use** If the ATV is primarily used for casual riding or light trails, the kit may not be immediately necessary. However, even light-use ATVs benefit from periodic maintenance to prevent unexpected breakdowns.

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### **Conclusion**

The **Balls Scal-PS777779-LS 2011-2014 Polaris 800 RMK Assault Upper Shaft Jack Bearing Seal Kit** is a **highly recommended upgrade or maintenance solution** for owners of these models. The pros significantly outweigh the cons, particularly for riders who prioritize longevity, performance, and reliability. The kit is a **cost-effective preventive measure** that can save money in the long run by avoiding costly repairs.

For **heavy-duty or aggressive riders**, this kit is practically essential due to the increased stress on the drivetrain. Even for lighter users, it serves as a **proactive maintenance step** to ensure smooth operation. The ease of installation and the brand s reputation further solidify its value.

If you are experiencing **vibration, unusual noise, or slippage in the drivetrain**, this kit is a **practical and necessary fix**. For those who prefer to stay ahead of potential issues, it is a **wise investment** in the health of your ATV.

### **Recommendation**

**Buy this kit if:**

- You own a 2011-2014 Polaris 800 RMK Assault and want to maintain or improve drivetrain performance.

- You notice signs of wear in the jackshaft bearing or seal (e.g., noise, vibration, or difficulty shifting).

- You are comfortable with basic mechanical work or have access to a mechanic for installation.

- You prioritize long-term reliability and want to avoid unexpected breakdowns.

**Avoid or delay purchase if:**

- You are unsure about the exact model compatibility or have heavily modified your ATV.

- You are on a tight budget and the ATV is not yet showing signs of bearing/seal failure.

- You lack the tools or confidence to install the kit yourself without professional help.

**Final Verdict:** This is a **strongly recommended purchase** for Polaris 800 RMK Assault owners, especially those who use their ATVs frequently or in demanding conditions. The benefits in terms of performance, durability, and cost savings make it a **smart choice** for proactive maintenance.

Details:

This is helpful if you are buying multiple items. 2011 2014 Polaris 800 RMK Assault Upper Shaft Jack Bearing Seal Kit: Compatibility: Snowmobile, Part Application.: Brand: All Balls, model Number: SCAL-PS777779-LS. I need to exchange an item.

Parts without fitment are to be assumed universal and may require vehicle modification. Credit or Debit Card.

part #: scalps777779 price

  • $54.74

specifications snowmobileshocksoi:

  • for models: Rmk, 800, Assault
  • for makes: Polaris
  • for years: 2011-2014
  • brand: Balls
  • mpn: Scal-ps777779-ls
  • part type: Bearing Seal Shaft

seller snowmobileshocksoi:

  • # reviews: 85082
  • rating: 99.9%
  • city: Indiana, US

general snowmobileshocksoi:

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

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

shipping snowmobileshocksoi:

  • transit: 3-7 Days
  • class: Standard
  • type: Fixed
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  • cost: $0.00

offer snowmobileshocksoi:

  • availability: In Stock
  • started: May 12, 2026
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  • quantity: 8
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for models: rmk, 800, assault, for makes: polaris, for years: 2011-2014, part type: bearing seal shaft,
category: snowmobile parts > shocks suspension, sku: 22363122529843891,
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1 offer $54.74 USD
  • New. Offer #1 priced at $54.74 + $0.00 shipping estimate = $54.74* total. Credit or Debit Card Part Application: Upper Shaft.FREE SHIPPING

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