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  3. NAMURA 4919-N294416-ATV

NAMURA TECHNOLOGIES 4919-N294416-ATV Piston Ring SET-90.42MM Atv

fits model: Xp, 1000, Scrambler. make: Polaris. year: 2016–2018.

4919-n294416-atv Namura Technologies Piston Ring Set-90.42mm For 2016-2018 Polaris Scrambler 1000 Xp Atv

( Brand: Namura Technologies ), ( Manufacturer Part Number: 4919-N294416-ATV ), ( Part Type: Ring Piston )

Review NAMURA TECHNOLOGIES Piston Ring Set-90.42mm Polaris Atv fits SCRAMBLER XP 1000 2016–2018

The **Namura 4919-N294416 ATV Piston Ring Set** is a precision-engineered, high-performance replacement for the 90.42mm piston rings in the 2016 2018 Polaris Scrambler 1000 XP ATV, designed to restore optimal engine efficiency, longevity, and power output. Crafted from Namura s proprietary **high-grade cast iron** and **chromium-plated steel**, these rings feature a **multi-layered construction** that enhances durability, minimizes friction, and maximizes sealing performance under extreme conditions. The set includes a **top compression ring** with a **barrel-shaped profile** for superior sealing and reduced blow-by, paired with a **second compression ring** optimized for heat dissipation and wear resistance, ensuring consistent compression across high-RPM applications. The **oil control ring** incorporates a **scraper and expander design**, effectively managing lubrication while preventing excessive oil consumption, which is critical for maintaining peak engine efficiency in off-road and high-demand scenarios. Engineered to fit snugly within the Scrambler s 90.42mm bore, these rings are **pre-gapped and pre-machined** for a seamless installation, reducing the risk of misalignment or premature wear. Whether you re tackling rugged trails, towing heavy loads, or pushing the engine to its limits, this Namura piston ring set delivers **superior sealing, extended engine life, and improved fuel economy**, making it an indispensable upgrade for serious riders seeking peak performance and reliability. Built to withstand the demands of modern ATV engines, this set ensures your Polaris Scrambler 1000 XP operates with the precision and power it was designed for.

### Pros and Cons of buying a Namura 4919-N294416 ATV Piston Ring Set (90.42mm) for a 2016-2018 Polaris Scrambler 1000 XP ATV

#### **Pros:**

1. **OEM Compatibility** Namura is a well-known brand that produces high-quality aftermarket parts designed to match or exceed OEM specifications. This ensures proper fitment and performance for your Polaris Scrambler 1000 XP, reducing the risk of compatibility issues.

2. **Enhanced Engine Performance** Piston rings are critical for maintaining compression, reducing oil consumption, and improving engine efficiency. A fresh set of Namura rings can restore or improve power output, fuel economy, and overall engine health, especially if your engine has high mileage or signs of wear.

3. **Durability and Longevity** Namura piston rings are manufactured with high-quality materials, including heat-treated steel and chrome plating, which resist wear, corrosion, and heat better than standard OEM rings. This can extend the life of your engine components and reduce the frequency of future replacements.

4. **Cost-Effective Maintenance** Replacing piston rings is a relatively affordable way to address common engine issues like compression loss, blue smoke from the exhaust, or excessive oil consumption. Compared to a full engine rebuild, this is a cost-effective solution for restoring engine function.

5. **Ease of Installation** Namura provides clear installation instructions, and since these are standard piston rings, they can be installed by a skilled mechanic or even a DIY enthusiast with basic engine knowledge. The 90.42mm size is specific to your engine, ensuring a precise fit.

6. **Compatibility with Aftermarket Upgrades** If you plan to modify your engine (e.g., with a turbocharger, larger displacement, or performance tuning), Namura rings are often recommended for their ability to handle increased stress and heat.

7. **Warranty and Reliability** Namura offers warranties on their products, which can provide peace of mind. Their reputation in the performance and off-road communities suggests reliability, though always verify the warranty terms before purchasing.

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#### **Cons:**

1. **Installation Complexity** Replacing piston rings requires disassembling the engine, removing the cylinder head, and carefully measuring and installing the rings with the correct gap and torque specifications. This is a labor-intensive job that may require professional assistance, adding to the overall cost.

2. **Potential for Damage During Installation** If not installed correctly, piston rings can cause scratches or damage to the cylinder walls, leading to premature wear or even engine failure. Improper installation (e.g., incorrect gap, improper seating, or cross-threading) can void warranties and necessitate additional repairs.

3. **Cost of Labor** While the rings themselves are reasonably priced, the labor cost for a professional mechanic to perform the installation can be significant, especially for a high-performance ATV like the Scrambler 1000 XP. DIY installation carries the risk of mistakes, which could be costly.

4. **Mixed Reviews on Fitment** While Namura is a reputable brand, some users report that aftermarket rings may not always match the exact wear patterns of an OEM engine, particularly if the cylinder walls are heavily worn or scored. In such cases, a cylinder hone or sleeve replacement may be necessary alongside the ring installation.

5. **Limited Availability of Parts** If you encounter issues post-installation (e.g., rings sticking, excessive wear), sourcing replacement parts or finding a specialist who works with Namura rings may be challenging, depending on your location.

6. **Not a Permanent Fix for Severe Engine Issues** If your engine has significant internal damage (e.g., scored cylinders, worn crankshaft, or damaged pistons), replacing just the rings will not resolve the underlying problems. A full engine rebuild or replacement may still be required.

7. **Potential for Increased Oil Consumption Initially** New piston rings may initially burn off some oil as they break in, which can result in a temporary increase in oil consumption. This is normal but should stabilize after a few hours of use.

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### **Conclusion:**

The Namura 4919-N294416 piston ring set is a solid choice for restoring or improving the performance of your 2016-2018 Polaris Scrambler 1000 XP ATV, provided your engine s issues are primarily related to compression loss, oil consumption, or general wear. The benefits of improved engine efficiency, durability, and compatibility with your ATV s specifications outweigh the potential drawbacks, especially if the installation is handled by a professional.

However, the decision to purchase should be based on a few key considerations:

- **Diagnose the Problem First**: Ensure that your engine s issues (e.g., blue smoke, poor power, oil leaks) are indeed caused by worn piston rings. A compression test or professional inspection can confirm this.

- **Budget for Labor**: Factor in the cost of professional installation, as DIY risks can be costly if mistakes are made.

- **Evaluate Engine Condition**: If your engine has severe internal damage, address those issues first (e.g., cylinder hone, piston replacement) before installing new rings.

- **Compare Alternatives**: Consider other brands like **Fel-Pro, Sealed Power, or OEM Polaris rings** if Namura is not readily available or if you have specific concerns about fitment.

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### **Recommendation:**

If your Polaris Scrambler 1000 XP is experiencing symptoms like poor acceleration, excessive oil consumption, or blue smoke from the exhaust, and a compression test confirms low compression, the **Namura 4919-N294416 piston ring set is a reliable and cost-effective solution**. Opt for professional installation to ensure proper gap sizing, ring seating, and torque specifications are met.

**Steps to Take:**

1. **Verify Engine Health**: Have a mechanic perform a compression test and inspect the engine for other wear issues.

2. **Purchase from a Reputable Source**: Buy the rings from an authorized dealer or a trusted online retailer (e.g., ATV Parts Pro, RockAuto, or Polaris-approved suppliers) to avoid counterfeit or low-quality products.

3. **Budget for Installation**: Allocate funds for professional labor, as this is a critical step to avoid damaging the engine.

4. **Follow Break-In Procedures**: After installation, follow the manufacturer s break-in guidelines (e.g., avoiding high RPMs initially, using fresh oil) to ensure the rings seat properly.

If your engine has other underlying issues (e.g., scored cylinders, worn crankshaft), address those first to maximize the lifespan of the new rings. For most cases of mild to moderate wear, Namura rings will provide a noticeable improvement in performance and reliability.

Details:

Parts without fitment are to be assumed universal and may require vehicle modification. This is helpful if you are buying multiple items. Compatibility: Years: Make: model: Application: Notes: 2016 - 2019 Polaris Sportsman 1000 XP High Lifter Edition, 2015 Touring XP, 2016 Polaris Sportsman Limited, 2018 Polaris Scrambler 2018 Polaris Sportsman Hunter 2014 2015 Polaris Scrambler EPS. Namura Piston Ring Set-90.42mm for 2016 - 2018 Polaris Scrambler 1000 XP ATV: Each ring set is one piston.

I need to exchange an item.: Brand: Namura Technologies, model Number: 4919-N294416-ATV.

part #: 4919n294416 price

  • $39.93

specifications electricacompone:

  • for models: Xp, 1000, Scrambler
  • for makes: Polaris
  • for years: 2016-2018
  • brand: Namura Technologies
  • mpn: 4919-n294416-atv
  • part type: Ring Piston

seller electricacompone:

  • # reviews: 86383
  • rating: 99.9%
  • city: Boise, ID

offer electricacompone:

  • availability: In Stock
  • started: June 2, 2026
  • sold: 0
  • options: Ship-to-home
  • quantity: 2

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general electricacompone:

  • ATV, Side-by-Side UTV Parts Accessories > Electrical Ignition Components > Other Electrical Ignition Components
  • condition: New
for models: xp, 1000, scrambler, for makes: polaris, for years: 2016-2018, part type: ring piston,
category: atv parts > atv, side-by-side utv parts accessories > electrical ignition components, sku: 25396808962713602,
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  • New. Offer #1 priced at $39.93 + $0.00 shipping estimate = $39.93* total. 2016 - 2019 Polaris Sportsman 1000 XP High Lifter Edition. 2016 - 2018 Polaris Scrambler 1000 XP.FREE SHIPPING

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