NAMURA NA-50003-6K Top End Repair Kit 1.50MM 75.97MM 300/XPRESS

( Brand: Namura ), ( Manufacturer Part Number: NA-50003-6K ), ( Warranty Details: See Manufacturer )

Review NAMURA Top End Repair Kit 1.50mm 75.97mm Polaris 300/xpress fits XPLORER XPRESS 300

Introducing the Namura NA-50003-6K Top End Repair Kit, specifically designed for the Polaris Xplorer 300 and Xpress 300 models. This comprehensive repair kit includes all the essential components required to revitalize the top end of your engine, ensuring optimal performance and longevity.

The kit comes with 1.5mm (0.059-inch) oversized piston rings, offering improved sealing and reduced blow-by. These piston rings are precision-engineered to fit perfectly in the cylinder bore, minimizing the risk of damage during installation.

Additionally, the kit includes 75.97mm (3 inches) piston pin bushings. These bushings ensure a smooth and reliable connection between the piston and the connecting rod, reducing friction and wear.

The Namura NA-50003-6K Top End Repair Kit also includes ring compressors, making the installation process easier and more efficient. These compressors securely hold the piston in place while the new rings are installed, minimizing the risk of damage.

Moreover, the kit includes a piston pin, piston pin retainer, and cylinder head gasket. These parts are essential for the proper functioning of the engine and are often worn out due to regular use.

The Namura NA-50003-6K Top End Repair Kit is an excellent investment for Polaris Xplorer 300 and Xpress 300 owners seeking to maintain or restore their engines to peak condition. With this kit, you can save time and money by performing the repairs yourself, rather than relying on costly professional services.

In summary, the Namura NA-50003-6K Top End Repair Kit is a must-have for Polaris Xplorer 300 and Xpress 300 owners. It includes all the necessary components for a top-end engine overhaul, including oversized piston rings, piston pin bushings, ring compressors, piston pin, piston pin retainer, and cylinder head gasket. By using this kit, you can ensure your engine runs smoothly and efficiently, saving you time and money in the long run.

The Namura NA-50003-6K Top End Repair Kit is designed for repairing the 1.50mm, 75.97mm Polaris Xplorer 300/Xpress 300 snowmobile engines. Here are some potential pros and cons to consider before making a purchase:

1. Comprehensive Repair Kit: This kit includes all the necessary components for a top-end rebuild, which can save you money compared to purchasing each part individually.

2. High-Quality Parts: Namura is a well-known brand in the snowmobile industry, and their parts are known for their durability and performance.

3. Easy-to-Follow Instructions: The kit comes with detailed instructions, making the repair process easier and more straightforward for DIYers.

1. Cost: While the comprehensive nature of the kit can save money in the long run, the upfront cost may be higher than purchasing individual parts.

2. Limited to Specific Engines: This kit is designed specifically for the Polaris Xplorer 300/Xpress 300 engines, so it may not be useful for other snowmobile models.

3. May Require Additional Tools: Depending on the specific repair, additional tools may be required to complete the job.

The Namura NA-50003-6K Top End Repair Kit is a valuable investment for those with Polaris Xplorer 300/Xpress 300 snowmobiles in need of a top-end rebuild. The high-quality parts, detailed instructions, and comprehensive nature of the kit make it a worthwhile purchase for DIYers looking to save money and improve their snowmobile's performance. However, the upfront cost and limited applicability to other engines should be considered before making a purchase.

If you own a Polaris Xplorer 300/Xpress 300 snowmobile and are in need of a top-end rebuild, the Namura NA-50003-6K Top End Repair Kit is a solid investment. The high-quality parts, ease of use, and cost savings make it a worthwhile addition to your snowmobile maintenance toolkit. However, if you don't own one of these engines or are not comfortable with DIY repairs, it may be best to consult a professional mechanic.

part # na500036k prices

• $92.28-$99.75

specifications atvsienna:

• for models: 300, Xplorer, Xpress
• for makes: Polaris
• brand: Namura
• manufacturer part number: NA-50003-6K
• warranty details: See Manufacturer

payments atvsienna:

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

returns atvsienna:

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

seller atvsienna:

• rating: 99.3%
• # reviews: 621007

offer atvsienna:

• options: Ship-to-home
• quantity: 3
• started: August 3, 2025
• availability: In Stock
• sold: 0

shipping atvsienna:

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

general atvsienna:

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

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