NAMURA ORNA-RA421813-GS Piston Rings Bike 66.36MM

( Brand: Namura ), ( Manufacturer Part Number: ORNA-RA421813-GS ), ( Part Type: Ring Piston )

Review NAMURA Husqvarna Dirt Bike Piston Rings 66.36mm fits CR250 1998–2013

Introducing the Namura ORN-RA421813-GS piston rings for the Husqvarna CR250 bike model, specifically designed for use between the years 1998 and 2013. These piston rings are an essential component of the engine, responsible for creating a seal between the piston and the cylinder wall to contain the combustion pressure and ensure efficient engine performance.

These rings are precision-engineered to meet the unique requirements of the Husqvarna CR250 engine. The rings have an outside diameter of 66.36mm (2.61 inches) and are manufactured from a high-quality, heat-resistant material that can withstand the extreme temperatures and pressures generated during engine operation. The rings are also designed to minimize friction, ensuring smooth engine performance and reducing wear on other engine components.

The set includes both the compression and oil control rings, each with a unique design to perform their specific functions. The compression ring, which is located closest to the piston crown, is designed to create a tight seal during the power stroke to contain the combustion gases and transfer maximum force to the crankshaft. The oil control ring, located just below the compression ring, is designed to prevent oil from leaking past the piston and into the crankcase.

These piston rings are manufactured to strict tolerances to ensure a perfect fit and maximum durability. They are also designed to work in conjunction with the engine's piston and cylinder, providing a complete solution for engine performance and reliability.

In summary, the Namura ORN-RA421813-GS piston rings for the Husqvarna CR250 bike model are a high-quality, precision-engineered component designed to ensure optimal engine performance and longevity. These rings are specifically designed for use in the Husqvarna CR250 engines produced between 1998 and 2013, and are manufactured from heat-resistant materials to withstand the extreme temperatures and pressures generated during engine operation. With their unique design and strict tolerances, these piston rings provide a perfect seal between the piston and cylinder wall, reducing friction and improving engine efficiency.

Buying Namura ORNA-RA421813-GS piston rings for Husqvarna CR250 bikes with a piston diameter of 66.36mm involves considering both advantages and disadvantages before making a decision.

1. Availability: Namura piston rings are widely available in the aftermarket, making it easier for consumers to find them when they need a replacement.

2. Cost-effective: Compared to original equipment manufacturer (OEM) piston rings, aftermarket rings like Namura's can be more affordable.

3. Variety: Aftermarket companies like Namura offer a wide range of piston ring options, including different materials, sizes, and designs, which can cater to various riding styles and conditions.

1. Quality concerns: Some aftermarket parts, including piston rings, may not meet the same quality standards as OEM parts. This could lead to potential issues, such as premature wear or failure.

2. Compatibility: Ensuring the correct compatibility between the piston rings and the bike engine is essential. While Namura's piston rings are advertised as a fit for Husqvarna CR250, it is still crucial to double-check the compatibility with the specific model year and engine condition.

3. Warranty: OEM piston rings usually come with a warranty, providing peace of mind and potential cost savings if issues arise. Aftermarket parts like Namura's do not typically come with a warranty.

When considering buying Namura ORNA-RA421813-GS piston rings for a Husqvarna CR250 bike, it's essential to weigh the advantages and disadvantages carefully. While aftermarket piston rings offer convenience, cost savings, and a wider range of options, they may also come with quality concerns, compatibility issues, and lack of a warranty. Ultimately, the decision depends on the specific needs, budget, and riding conditions of the user. If compatibility and quality are top priorities, it may be worth considering OEM piston rings. However, if cost savings and availability are more important, aftermarket options like Namura's could be a suitable choice.

To make an informed decision, it's recommended to research the specific piston rings thoroughly, ensuring they are compatible with the bike model and engine condition. Additionally, checking reviews and consulting with motorcycle experts or professionals can help assess the quality and reliability of the aftermarket piston rings. Ultimately, the choice between OEM and aftermarket piston rings depends on individual preferences, priorities, and budget.

Details:

1998 2013 Husqvarna CR250 Dirt Bike Namura Piston Rings 66.36mm: Ring Set Contains: ring to match a single piston.: Brand: Namura, model Number: ORNA-RA421813-GS. This is helpful if you are buying multiple items. Parts without fitment are to be assumed universal and may require vehicle modification.

I need to exchange an item. Compatibility: Honda CR250R 1997 - 2004 , Suzuki RM250 1996 2008 , Yamaha YZ250 2014.

part #: ornara421813 price

• $13.95

specifications pistondon:

• for models: Cr250
• for makes: Husqvarna
• for years: 1998-2013
• brand: Namura
• mpn: Orna-ra421813-gs
• part type: Ring Piston

offer pistondon:

• options: Ship-to-home
• started: May 12, 2025
• quantity: 6
• sold: 0
• availability: In Stock

seller pistondon:

• rating: 99.5%
• city: Boise, ID
• # reviews: 63602

payments pistondon:

• credit card: Mastercard
• wallet: Paypal
• other

general pistondon:

• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits
• condition: New

returns pistondon:

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

shipping pistondon:

• cost: $0.00
• class: Standard
• service: Standard
• type: Fixed
• transit: 2-4 Days

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