NAMURA TECHNOLOGIES NW-40000-2 Piston Pwc 703624242442 .020 81.5MM

( Brand: Namura Technologies ), ( Manufacturer Part Number: NW-40000-2 ), ( Part Type: Piston ), ( UPC: 703624242442 )

Review NAMURA TECHNOLOGIES .020 Over Bore Piston Kits For Yamaha Pwc Fits 81.5mm fits 700 1993–2020

The Namura NW-40000-2 020 piston is a high-performance replacement option for the piston on Yamaha 700 Personal Watercraft (PWC) models from 1993 to 2020. This piston is specifically designed for the 81.5mm bore size, ensuring a precise fit and optimal engine performance.

The NW-40000-2 020 piston is manufactured using advanced techniques and materials to deliver superior strength and durability. Its composition includes a forged aluminum alloy skirt, a high-tensile steel wrist pin, and a reinforced piston pin bore. These features provide enhanced resistance to fatigue and wear, allowing the piston to withstand the demanding conditions of PWC use.

Additionally, the piston features a diamond-like carbon (DLC) coated piston skirt, which significantly reduces friction and minimizes scuffing. This coating ensures efficient power transfer between the piston and the cylinder, contributing to increased horsepower and torque.

The NW-40000-2 020 piston is also equipped with a high-performance ring set. This set includes a compression ring, an oil control ring, and a top ring, all made from premium materials. These rings ensure efficient combustion and optimal engine sealing, contributing to improved power output and fuel efficiency.

Furthermore, the piston comes with a precision-machined piston crown, ensuring perfect squish clearance and piston-to-liner contact. This feature helps to reduce detonation and improve engine combustion efficiency, leading to smoother engine operation and better overall performance.

The Namura NW-40000-2 020 piston is designed with a radial piston pin and a floating piston pin boss, which reduces piston-to-liner contact and minimizes the risk of piston slap. This design feature contributes to quieter engine operation and improved durability.

In summary, the Namura NW-40000-2 020 piston is a high-quality, high-performance replacement option for the piston on Yamaha 700 PWC models from 1993 to 2020. Its advanced features, including a forged aluminum alloy skirt, high-tensile steel wrist pin, reinforced piston pin bore, DLC coated piston skirt, high-performance ring set, precision-machined piston crown, radial piston pin, and floating piston pin boss, make it a reliable and effective upgrade for those seeking improved engine performance and durability.

Piston Replacement for Yamaha 700 PWC (Personal Watercraft) with Namura NW-40000-2 020 Piston: A Detailed Analysis

The Namura NW-40000-2 020 piston is a popular aftermarket option for piston replacement in Yamaha 700 PWC models from 1993 to 2020 with an 81.5mm bore size. In this analysis, we will discuss the pros and cons of using this piston, followed by a conclusion and recommendation.

1. Cost-effective: Aftermarket pistons like the Namura NW-40000-2 020 are typically more affordable than OEM (Original Equipment Manufacturer) pistons. This can be an attractive option for PWC owners looking to save money on repairs.

2. High-quality materials: Namura pistons are manufactured using high-quality materials, such as forged aluminum alloy and ring sets made from low-friction materials. These materials can help increase durability, reliability, and engine performance.

3. Wide compatibility: The Namura NW-40000-2 020 piston is compatible with a wide range of Yamaha 700 PWC models, making it a versatile option for many boat owners.

1. Potential for inferior fit and finish: Aftermarket pistons, including the Namura NW-40000-2 020, may not have the same level of precision fit and finish as OEM pistons. This can result in minor clearance issues, which could potentially lead to increased wear and tear on other engine components.

2. Limited warranty: Aftermarket parts, such as the Namura NW-40000-2 020 piston, often come with limited or no warranty coverage. This can be a concern for some boat owners who prefer the peace of mind that comes with an OEM warranty.

3. Potential for compatibility issues: Although the Namura NW-40000-2 020 piston is designed to be compatible with a wide range of Yamaha 700 PWC models, there is still a possibility of compatibility issues arising. It is essential to ensure that the piston is the correct fit for your specific model before making a purchase.

The Namura NW-40000-2 020 piston offers cost savings, high-quality materials, and wide compatibility as advantages. However, potential concerns include the possibility of inferior fit and finish, limited warranty coverage, and compatibility issues. Ultimately, the decision to use the Namura piston as a replacement depends on your individual needs, budget, and level of risk tolerance.

If you are comfortable working on your PWC and are looking to save money on a piston replacement, the Namura NW-40000-2 020 piston could be a good option for you. However, it is essential to ensure that you have accurately identified the compatibility of the piston with your specific Yamaha 700 PWC model and that the potential risks are acceptable to you. If you prefer the peace of mind that comes with an OEM warranty or have concerns about compatibility or fit, it may be worth investing in a genuine OEM piston from Yamaha.

Details:

Manufactured by Namura. Piston dome is anodized for superior heat resistance and longer lifespan. Kits are for .020 over bore size - 81.50mm. Piston skirts are Molybdenum Teflon coated to minimize resistance/wear and provide extended life.

1993 Wave Runner Pro VXR 700 WRB700. Made in Taiwan. Compatible with Yamaha model's below: 1993 Wave Blaster 700 WB700. Kit Includes 2 Pistons, Ring sets, Pins, Clips you get exactly what is pictured.

part #: nw400002 prices

• $74.66-$251.96

specifications perwatercraft:

• for models: 700
• for makes: Yamaha
• for years: 1993-2020
• brand: Namura Technologies
• mpn: Nw-40000-2
• part type: Piston
• upc: 703624242442

returns perwatercraft:

• paid by: Buyer
• time: 60 Days
• policy: Returns Accepted

offer perwatercraft:

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

payments perwatercraft:

• wallet: Google-pay
• credit card: Discover
• other

shipping perwatercraft:

• service: Standard
• type: Fixed
• class: Standard
• transit: 4-8 Days
• cost: $0.00

general perwatercraft:

• condition: New
• Parts Accessories > Personal Watercraft Parts > Other Parts

seller perwatercraft:

• # reviews: 385574
• rating: 99.5%
• city: Suamico, Wisconsin

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