MOOSE RACING 250377 Piston 78.00MM 13.5 4-STROKE

( Brand: Moose Racing ), ( Manufacturer Part Number: 250377 ), ( Part Type: Piston )

Review MOOSE RACING Piston 78.00mm 13.5 For Honda 4-stroke fits CRF250R 2004–2008

Introducing the Moose Racing 250377 Piston, an essential upgrade for the Honda CRF250R 4-stroke motorcycles manufactured between 2004 and 2008. This high-performance piston is specifically designed to deliver enhanced power, increased efficiency, and improved durability for your off-road machine.

The Moose Racing 250377 Piston boasts a 78.00mm bore size, making it an excellent fit for your CRF250R's engine. Crafted from a forged material, this piston ensures superior strength and rigidity, allowing it to withstand the rigors of off-road riding. The piston's 13.5:1 compression ratio is engineered to extract maximum power from your fuel, resulting in a more responsive and exhilarating riding experience.

This Moose Racing piston features a precision-machined surface finish, ensuring optimal piston-to-liner clearance and minimizing friction for optimal engine performance. The piston skirt is designed with a full-dish profile, which enhances the scavenging effect of the engine's crankshaft, improving combustion efficiency and overall power output.

The Moose Racing 250377 Piston also includes a coated piston pin, which reduces friction and wear between the piston and the connecting rod, extending the life of your engine components. The piston pin is also held in place by a high-quality piston pin retaining clip, which ensures a secure fit and prevents any potential damage.

Installing this Moose Racing piston in your Honda CRF250R is a straightforward process that can be accomplished with common hand tools and a moderate level of mechanical skill. The piston comes complete with all necessary hardware, including new rings and ring compressor tool, making it a convenient and hassle-free upgrade option.

In summary, the Moose Racing 250377 Piston is an exceptional performance upgrade for your Honda CRF250R 4-stroke motorcycles from 2004 to 2008. By providing increased power, improved efficiency, and extended component life, this piston delivers a more enjoyable and exhilarating riding experience on your off-road adventures.

Moose Racing 250377 Piston for Honda CRF250R (2004-2008): A Detailed Analysis

The Moose Racing 250377 piston is a popular aftermarket option for the Honda CRF250R 4-stroke models from 2004 to 2008. This piston is known for its high-performance features and capabilities. In this analysis, we will discuss the pros and cons of purchasing this Moose Racing piston to help you make an informed decision.

1. Enhanced Performance: The Moose Racing piston is designed to provide improved power and torque, making it an excellent choice for riders looking to enhance their bike's performance.

2. High-Quality Material: The piston is made of forged aluminum, ensuring durability and strength. This material is known for its ability to withstand the rigors of off-road racing.

3. Increased Compression Ratio: The Moose Racing piston offers a higher compression ratio than the OEM piston, which can lead to increased horsepower and better engine efficiency.

4. Improved Heat Dissipation: The piston features a unique design that allows for better heat dissipation, keeping the engine cooler during long rides or high-performance usage.

5. Better Fit and Finish: The Moose Racing piston is precision-machined to ensure a perfect fit in the engine, reducing the likelihood of engine issues due to misalignment or poor fitment.

1. Cost: The Moose Racing piston is more expensive than the OEM piston. This may be a concern for budget-conscious riders.

2. Installation Complexity: Installing the Moose Racing piston requires some mechanical knowledge and experience. It may not be a suitable DIY project for inexperienced riders.

3. Potential Power Increase: The increased power and torque may not be desirable for all riders, especially those who prefer a more relaxed riding experience.

4. Warranty: The Moose Racing piston does not come with the same level of factory warranty as the OEM piston, which may be a concern for some riders.

The Moose Racing 250377 piston is an excellent choice for riders looking to enhance the performance of their Honda CRF250R 4-stroke (2004-2008) model. Its high-quality materials, improved heat dissipation, and precision machining contribute to its durability and reliability. However, its higher cost and installation complexity are potential drawbacks. Ultimately, the decision to purchase this aftermarket piston depends on your riding preferences, budget, and mechanical expertise. If you are looking for improved power and torque and are comfortable with the installation process, then the Moose Racing 250377 piston is a recommended upgrade.

Details:

Wrist pins are nitrite coated, providing a hardened, wear-resistant bearing surface. Coated skirts ease break-in, decreasing wear and aiding in lubrication. Wear-resistant piston rings that are either nitrite or chrome plated depending on application. Moose Piston 78.00mm 13.5:1 for Honda CRF250R 4-Stroke 2004 -2008: Gravity-cast aluminum alloy with 18% silicon to increase resistance wear and decrease thermal distortion, thus providing a longer piston life.

Honda CRF250R 4-Stroke 2002 -2008. This item fits the following applications. Piston kits include piston, rings, wrist pin and cir clips.

part #: 250377 price

• $326.95

specifications pistondon:

• for models: Crf250r
• for makes: Honda
• for years: 2004-2008
• brand: Moose Racing
• mpn: 250377
• part type: Piston

seller pistondon:

• city: Grand Rapids, Michigan
• # reviews: 717932
• rating: 99.8%

shipping pistondon:

• carrier: UPS
• cost: $0.00
• service: UPS Ground
• type: Fixed
• transit: 4-6 Days
• class: Standard

general pistondon:

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

returns pistondon:

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

payments pistondon:

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

offer pistondon:

• availability: In Stock
• quantity: 4
• sold: 0
• started: May 24, 2026
• options: Ship-to-home

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