1. USED Engine Parts Deals
  2. sku: 8587972056330793
  3. NAMURA NA-50001-4K

NAMURA NA-50001-4K Top End Repair Kit 1.00MM 80.95MM

fits model: 350, Trail, Boss. make: Polaris.

Na-50001-4k Namura Top End Repair Kit 1.00mm 80.95mm #na-50001-4k Polaris Trail Boss 350

( Brand: Namura ), ( Manufacturer Part Number: NA-50001-4K ), ( Warranty Details: See Manufacturer )

Review NAMURA Top End Repair Kit 1.00mm 80.95mm #na-50001-4k Polaris fits TRAIL BOSS 350

The Namura NA-50001-4K Top End Repair Kit is specifically designed for the Polaris Trail Boss 350, providing a comprehensive solution for your engine repair needs. This repair kit is an essential tool for anyone who owns or works on this particular model of Polaris ATV.

The kit includes high-quality replacement parts, all measured to meet the precise specifications of the Polaris Trail Boss 350 engine. The most notable component of this repair kit is the 1.00mm piston ring set, which is engineered to ensure optimal engine performance and efficiency. This piston ring set is designed to minimize compression loss, reduce blowby, and prevent oil consumption.

Additionally, the repair kit includes a set of 80.95mm cylinder liners. These liners are made from durable, long-lasting material that provides excellent wear resistance, ensuring a smooth and efficient engine operation. The kit also includes gaskets, valve guides, valve stem seals, and other essential components required for a top-end engine overhaul.

The Namura NA-50001-4K Top End Repair Kit is an excellent investment for anyone who wants to keep their Polaris Trail Boss 350 running at its best. It is designed to provide a complete solution for engine repair, making it a must-have for anyone who wants to ensure their ATV's longevity and reliability.

This repair kit is easy to install, with clear instructions provided to guide you through the process. The high-quality components ensure a perfect fit, minimizing the need for additional modifications or adjustments. With this repair kit, you can confidently tackle engine repairs yourself, saving you time and money compared to taking your ATV to a professional shop.

In summary, the Namura NA-50001-4K Top End Repair Kit is an essential tool for anyone who owns or works on a Polaris Trail Boss 350. It includes high-quality replacement parts, such as the 1.00mm piston ring set and 80.95mm cylinder liners, designed to ensure optimal engine performance and efficiency. The kit is easy to install and comes with clear instructions, making it an excellent investment for anyone who wants to keep their ATV running at its best.

Pros and Cons of buying a Namura NA-50001-4K Top End Repair Kit for Polaris Trail Boss 350

I. Introduction

The Namura NA-50001-4K Top End Repair Kit is specifically designed for repairing the top end of the Polaris Trail Boss 350 engine. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this repair kit.

II. Pros

1. Compatibility: The Namura kit is designed exclusively for the Polaris Trail Boss 350 engine, ensuring a perfect fit and minimal adjustments required during installation.

2. Quality: Namura is a well-known and trusted brand in the ATV and motorcycle repair industry, known for producing high-quality repair kits.

3. Cost-effective: Buying a repair kit is generally more cost-effective than purchasing new engine parts or having the repairs done by a professional mechanic.

4. Convenience: The kit includes all the necessary components for a top end repair, reducing the need to order individual parts and potentially saving time.

III. Cons

1. Complexity: Engine repairs can be complex and time-consuming, especially for those without prior experience or mechanical knowledge.

2. Risk of Damage: There is a risk of damaging other components during the repair process, which could lead to additional costs and time.

3. Tools and Equipment: The repair process may require specialized tools and equipment, which could add to the overall cost and complexity of the project.

IV. Conclusion

The Namura NA-50001-4K Top End Repair Kit offers several advantages, including compatibility, quality, cost-effectiveness, and convenience. However, it also presents some challenges, such as complexity, risk of damage, and the need for specialized tools.

V. Recommendation

If you are comfortable with engine repairs and have the necessary tools and knowledge, purchasing the Namura NA-50001-4K Top End Repair Kit for your Polaris Trail Boss 350 could be a cost-effective and convenient solution for addressing top end issues. However, if you lack experience or confidence in your abilities, it may be worth considering having the repairs done by a professional mechanic to minimize the risk of damage and ensure a proper repair.

part # na500014k prices

  • $97.63-$104.31

specifications atvsienna:

  • for models: 350, Trail, Boss
  • for makes: Polaris
  • brand: Namura
  • manufacturer part number: NA-50001-4K
  • warranty details: See Manufacturer

offer atvsienna:

  • started: September 7, 2025
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • quantity: 2

shipping atvsienna:

  • type: Fixed
  • class: Standard
  • cost: $0.00
  • service: UPS Ground
  • transit: 3-5 Days
  • carrier: UPS

payments atvsienna:

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

general atvsienna:

  • condition: New
  • ATV, Side-by-Side UTV Parts Accessories > Engines Engine Parts > Other Engine Parts

returns atvsienna:

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

seller atvsienna:

  • # reviews: 625481
  • rating: 99.3%
for models: 350, trail, boss, for makes: polaris, warranty details: see manufacturer,
category: atv parts > atv, side-by-side utv parts accessories > engines engine parts > engine parts, sku: 8587972056330793,

Namura NA-50001-4K Is Similar To:

atvsienna logo
5 offers $97.63–$104.31 USD
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  • Offer #2: $104.31 price + free delivery = $104.31* total. Rings will fit OEM pistons.FREE SHIPPING
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  • Offer #5: $97.71 price + free delivery = $97.71* total. Sizing: 1.00mm Oversize.FREE SHIPPING