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JE Pistons

JE Pistons FA20 - 4UGSE 10.5:1 KIT Set of 4 Pistons

$899.99

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JE Pistons FA20 10.5:1 forged piston kit. Built in the USA for high-demand performance.

Key Features

  • Fits Subaru FA20 engines.
  • Set includes four forged pistons, wrist pins, locks, and JE Pro Seal premium piston rings.
  • Forged from 2618 aluminum for high tensile strength in demanding applications.
  • Proprietary Forged Side Relief (FSR) design minimizes friction and power loss.
  • Features an inverted dome/dish design with a 10.5:1 compression ratio.
  • Piston skirts may include a coating to reduce friction and wear.
This piston set is designed for Subaru FA20 engines. Please verify fitment with the manufacturer's specifications before purchase.

⚠️ 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

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About this part

Product Details

If you're rebuilding the engine in your FA20-powered Subaru, a solid set of pistons is crucial for getting the performance and durability you need. This JE Pistons kit is built specifically for the FA20 engine, offering an updated design that balances strength with reduced weight. They're made from 2618 aluminum, a well-built material that provides the high tensile strength required for engines pushed hard.

JE Pistons has been making performance pistons for a long time, and they've applied that experience here. You'll find their proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by using a narrower skirt and a shorter wrist pin. Some applications also include an accumulator groove to help control combustion gas pressure, leading to better ring seal and more consistent power. If your kit includes a skirt coating, that's an extra layer of protection to reduce friction and wear on the cylinder walls, which also helps quiet things down. Everything is forged and machined right here in the USA.

This kit comes complete with high-quality wrist pins, locks, and JE's Pro Seal premium piston rings, so you have the essential components to get your engine back together. It's important to note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for specific details on fitting these pistons into your FA20 engine.

Specifications

Brand
JE Pistons
Manufacturer Part #
315117
UPC
315117

Frequently Asked Questions

JE Pistons FA20 - 4UGSE 10.5:1 KIT Set of 4 Pistons

$899.99