NAMURA ORNA-RA416603-WX Piston Kit Bike 46.95MM

( Brand: Namura ), ( Manufacturer Part Number: ORNA-RA416603-WX ), ( Part Type: Piston )

Review NAMURA Ktm Dirt Bike Piston Kit 46.95mm fits SX 1985–2012

Introducing the Namura ORN-RA416603-WX piston kit, specifically designed for KTM 85 SX bikes manufactured between the years 2003 and 2012. This piston kit is an essential upgrade for any rider seeking optimal engine performance and reliability.

Each piston in this kit is meticulously crafted using high-quality materials, ensuring a perfect fit and superior durability. The piston diameter measures 46.95mm, ensuring compatibility with the specified KTM 85 SX models.

The piston's crown is designed with a precise shape and contour to ensure efficient combustion and optimal power transfer. The piston skirt is engineered to provide a snug fit within the cylinder bore, reducing friction and minimizing the risk of piston slap.

The piston rings included in this kit are made of high-temperature, wear-resistant materials to ensure a tight seal and prevent oil leakage. The piston rings are also designed to minimize friction, reducing engine wear and improving overall performance.

The piston kit also includes a piston pin and piston pin retaining clip, ensuring a complete and functional upgrade. The piston pin is made of high-strength material and is precision-machined to ensure a perfect fit and maximum strength.

Installing this piston kit is a straightforward process, making it an ideal upgrade for both professional mechanics and enthusiastic DIY riders. By upgrading to this high-performance piston kit, you can expect improved engine performance, increased power output, and enhanced reliability for your KTM 85 SX bike.

The Namura OR-A416603-WX piston kit for the KTM 85 SX bike with a piston diameter of 46.95mm is a crucial part for the two-stroke engine. Here are some pros and cons that might help you decide whether to buy this piston kit.

1. High-quality materials: The piston kit is made of forged aluminum alloy, ensuring durability and strength.

2. Precision manufacturing: The piston kit undergoes a precise manufacturing process to ensure a perfect fit and optimal engine performance.

3. Improved power and torque: The piston kit can help increase the power and torque of the engine, providing better acceleration and overall performance.

4. OEM replacement: The Namura piston kit is an OEM (original equipment manufacturer) replacement, ensuring a perfect fit and compatibility with the KTM 85 SX bike.

1. Cost: The piston kit may be more expensive than some aftermarket options, but the quality and performance benefits may outweigh the cost.

2. Installation: Installing the piston kit requires some mechanical knowledge and skills, so it may not be a DIY project for everyone.

3. Availability: The Namura piston kit may not be readily available in all locations, so it may take some time to source and receive the kit.

In conclusion, the Namura OR-A416603-WX piston kit for the KTM 85 SX bike with a piston diameter of 46.95mm is a high-quality OEM replacement that can provide improved power, torque, and overall performance. However, it may come with a higher cost, installation challenges, and availability constraints. If you value performance and durability, and you have the necessary skills and resources to install the kit, then it may be worth the investment. Otherwise, you might consider other aftermarket options that may be more affordable and readily available. Ultimately, the decision to buy this piston kit depends on your specific needs, budget, and mechanical abilities.

Details:

All Namura pistons have anodized domes that provide superior heat resistance. I need to exchange an item. All Namura pistons have premium world class rings. Rings will fit OEM pistons.

2003 2012 KTM 85 SX Dirt Bike Namura Piston Kit 46.95mm: Compatibility: SX, Size: 46.95mm.: Brand: Namura, model Number: ORNA-RA416603-WX. This is helpful if you are buying multiple items. Parts without fitment are to be assumed universal and may require vehicle modification.

part #: ornara416603 price

• $50.84

specifications pistondon:

• for models: Sx
• for makes: Ktm
• for years: 1985-2012
• brand: Namura
• mpn: Orna-ra416603-wx
• part type: Piston

offer pistondon:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 2
• started: March 18, 2026

returns pistondon:

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

seller pistondon:

• city: Indiana, US
• rating: 99.9%
• # reviews: 80361

payments pistondon:

• credit card: Diners-club
• other
• wallet: Paypal

shipping pistondon:

• cost: $0.00
• type: Fixed
• service: Standard
• class: Standard
• transit: 2-6 Days

general pistondon:

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

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