Specifications
- Brand
- JE Pistons
- Part #
- 314439R
- UPC
- 193564017017

JE Pistons SUB WRX EJ205 93mm Bore CR 8.5 - Single Piston (Right Side)
$299.99
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JE Pistons SUB WRX EJ205 93mm Bore CR 8.5 - Single Piston (Right Side). Forged from 2618 aluminum for high-demand performance.
Key Features
- This listing includes one JE Pistons forged piston, wrist pins, locks, and a JE Pro Seal premium piston ring set.
- Forged in the USA from 2618 aluminum for high tensile strength suitable for performance applications.
- Features a 93mm bore and 8.5:1 compression ratio with an inverted dome/dish design.
- Proprietary Forged Side Relief (FSR) design minimizes friction and power loss with reduced skirt width and a shorter wrist pin.
- Skirt coating (application dependent) reduces friction and wear on piston skirts and cylinder walls, while also reducing operating noise.
- Accumulator groove (application dependent) helps reduce combustion gas pressure, improving ring seal and consistent power.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
This listing is for a single JE Pistons forged piston, designed for the Subaru WRX EJ205 engine. You'll receive the piston itself, along with high-quality wrist pins, locks, and a JE Pro Seal premium piston ring set. This piston features a 93mm bore and an 8.5:1 compression ratio with an inverted dome/dish design, intended for the right side of the engine.
JE Pistons crafts these pistons from 2618 aluminum, a well-built material chosen for its high tensile strength, making it suitable for demanding performance applications. They are forged and machined entirely in the USA, ensuring a strong, durable component. The design incorporates a proprietary Forged Side Relief (FSR) forging, which helps minimize friction and power loss through a reduced skirt width and a shorter wrist pin, saving weight. Depending on the specific application, these pistons may also feature a skirt coating to further reduce friction and wear on the cylinder walls, while also helping to quiet down operation. An accumulator groove might also be present to manage combustion gas pressure, reducing ring flutter and improving the ring seal for consistent power delivery.
This piston is specifically engineered for the EJ205 engine, optimizing performance and durability for its intended use. Please note that this part is not CARB approved and cannot be shipped to California.
Specifications
- Brand
- JE Pistons
- Manufacturer Part #
- 314439R
- UPC
- 193564017017
Frequently Asked Questions
JE Pistons SUB WRX EJ205 93mm Bore CR 8.5 - Single Piston (Right Side)
