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- JE Pistons 274178 Piston
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Item #:
19255571
JE Pistons 274178 Piston
Item #:
19255571
€ 353
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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In stock
Imported from USA store
QTY:
Order now and get it around Tuesday, August 25
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Precision CNC machined ring grooves. Machined oil drain back holes engineered for specific oil control.
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What Stands Out
High Performance
These pistons are engineered for ultimate performance, delivering superior strength and durability for high horsepower applications, ensuring enhanced engine efficiency and longevity.
Precision Crafting
JE Pistons are crafted with meticulous precision, providing a perfect fit for various engines, which minimizes wear and enhances overall engine performance while reducing maintenance costs.
Optimized Design
Featuring an optimized design that improves combustion efficiency, these pistons help deliver more power while maintaining lower emissions, making them an environmentally friendly choice for performance enthusiasts.
Product Details
- Package dimensions: 6.0 L x 6.0 W x 3.0 H
- Package quantity: 1
- Product type: Powersports Vehicle Part
- Country of Origin: United States
- Bore: 78.00mm, Compression: 13.8:1 Compression, Sizing: Standard Bore
- Smooth radius dome and dish designs, Radiused replacement valve reliefs, Precision CNC machined ring grooves, Machined oil drain back holes engineered for specific oil control, Factory honed pin bores, wrist pins and locks, Pro Series features reduced weight and dedicated forgings
| Item Weight | 1.1 lbs (500 grams) |
Who Should Buy?
-
Performance Enthusiasts
Ideal for automotive enthusiasts seeking high-performance pistons in builds aimed at substantial power increase.
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Racers and Drivers
Perfect for competitive racers looking for reliable components to enhance their vehicle's speed and efficiency.
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Engine Builders
Great for professional engine builders who require durable and high-quality pistons for various engine setups.
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Casual Drivers
Not suitable for everyday drivers who do not need extensive modifications or high-performance parts.
Product Description
JE Pistons 274178 Piston
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What are Pro Series 78.00mm Bore Pistons designed for?
Answer: Pro Series 78.00mm Bore Pistons are specifically crafted for enhancing the performance of Honda CRF250R and CRF250X motorcycles. These pistons improve engine efficiency, delivering better power output and enhanced throttle response. By upgrading your pistons, you can unlock higher RPMs and an overall more exhilarating riding experience, especially on off-road terrains and motocross tracks. -
Question:
How do I install Pro Series pistons on my Honda CRF250R/CRF250X?
Answer: Installing Pro Series pistons requires mechanical expertise and the right tools. The process involves removing the cylinder head and old pistons, cleaning the cylinder walls, and carefully placing the new pistons. Precise torque specifications are essential for successful installation. For best results, refer to your motorcycle's service manual or consult a professional mechanic. Proper installation will ensure optimal performance and longevity of your engine. -
Question:
What materials are Pro Series 78.00mm Bore Pistons made from?
Answer: Pro Series pistons are typically made from high-strength aluminum alloys, designed to withstand the extreme temperatures and pressures generated in high-performance engines. This material choice ensures excellent durability while keeping weight low for improved acceleration. Additionally, these pistons may feature advanced coatings to reduce friction and enhance performance during operation. -
Question:
Will upgrading to Pro Series pistons affect my bike's fuel consumption?
Answer: Upgrading to Pro Series pistons can improve overall combustion efficiency, which may lead to slightly better fuel economy under certain riding conditions. However, the main focus of these pistons is to boost power and performance, which might lead some riders to utilize their throttle more aggressively. Ultimately, your riding style will greatly influence fuel consumption after making this upgrade. -
Question:
Can I use Pro Series pistons for racing applications?
Answer: Yes, Pro Series 78.00mm Bore Pistons are engineered for performance and are ideal for racing applications. Many riders use these pistons to enhance their bikes for motocross and off-road racing, where every fraction of power counts. They provide the necessary durability and performance enhancement required to compete effectively while ensuring your engine runs smoothly under high-stress conditions. -
Question:
Do I need to make other modifications on my Honda CRF250R/CRF250X when installing these pistons?
Answer: While Pro Series pistons can provide significant performance upgrades, it is often recommended to pair them with other modifications like an enhanced camshaft, upgraded carburetors, or performance exhaust systems. These complementary upgrades can optimize your engine's performance capabilities, ensuring that you make the most out of the new pistons and achieve your desired power output. -
Question:
What maintenance should I perform after installing Pro Series pistons?
Answer: Post-installation maintenance is crucial for maintaining performance and longevity. Regular checks on engine oil levels, oil quality, and general engine temperatures are essential. Monitoring performance during rides and adjusting the carburetion might also be necessary. Ensuring that your engine remains in good condition post-installation will help you maximize the benefits of your new pistons. -
Question:
How do Pro Series pistons compare to stock pistons?
Answer: Pro Series pistons are designed for high-performance applications, offering enhanced strength, weight reduction, and better thermal management compared to stock pistons. This results in improved acceleration and responsiveness. While stock pistons may suffice for everyday riding, Pro Series pistons allow serious riders to push their bikes to the limits, making a tangible difference in performance during competitive riding or trail adventures. -
Question:
What are the benefits of using high-compression pistons like Pro Series?
Answer: High-compression pistons, such as Pro Series 78.00mm Bore Pistons, can deliver increased power output and better throttle response. They help in improving combustion efficiency, enabling your engine to produce more power per cubic centimeter. This is particularly beneficial in competitive environments where power-to-weight ratios significantly impact performance, allowing you to gain a competitive edge on the track or trails. -
Question:
Where can I buy Pro Series 78.00mm Bore Pistons for Honda CRF250R/CRF250X?
Answer: You can buy Pro Series 78.00mm Bore Pistons for Honda CRF250R/CRF250X from Ubuy. Ubuy offers a wide range of motorcycle parts and accessories, making it a convenient choice for riders looking to enhance their performance. You can easily explore their selection and ensure you get genuine Pro Series products to optimize your riding experience.
JE Pistons Caliper Pistons Editorial Review
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Pros
- High performance boost
- Durable materials used
- Excellent engine efficiency
- Lightweight design
- Easy installation
Cons
- Limited color options available
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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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€ 353
Order now and get it around Tuesday, August 25
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
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Features & Benefits
- Bore: 78.00mm
- Compression: 13.8:1 Compression
- Sizing: Standard Bore
- Smooth radius dome and dish designs
- Factory honed pin bores, wrist pins and locks
- Pro Series features reduced weight and dedicated forgings
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