Specifications
- Brand
- JE Pistons
- Part #
- 359152
- UPC
- 193564035219
JE Pistons Toyota 4U-GSE 86.00mm Bore STD Size 12.5:1 CR -1.0cc Dome FSR Piston (Set of 4)
$899.99
JE Pistons 4U-GSE 86mm STD pistons. These forged pistons feature a 12.5:1 compression ratio and FSR design for improved durability and performance.
Key Features
- This set includes four JE Pistons for the Toyota 4U-GSE engine, each with an 86.00mm bore and STD size.
- The pistons feature a 12.5:1 compression ratio with a -1.0cc dome, designed for optimized performance.
- JE Pistons' proprietary Forged Side Relief (FSR) forging design reduces skirt width and uses a shorter wrist pin to minimize friction and save weight.
- Depending on the application, an accumulator groove may be included to reduce combustion gas pressure and improve ring seal.
- A skirt coating, if included for this application, helps reduce friction and wear on the piston skirts and cylinder walls.
- Forged from 2618 aluminum in the USA, these pistons offer the high tensile strength needed for demanding performance uses.
⚠️ 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
Starting with a 2618 aluminum forging, these JE Pistons are built for high-demand performance applications. They are specifically designed for the Toyota 4U-GSE engine, featuring an 86.00mm bore and a 12.5:1 compression ratio with a -1.0cc dome. This setup is engineered to optimize performance and durability for racing scenarios.
JE Pistons utilizes their proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by using a reduced skirt width and a shorter wrist pin, saving additional weight. Depending on the specific application, these pistons may also include an accumulator groove to reduce combustion gas pressure, preventing ring flutter and improving ring seal for consistent power delivery. A skirt coating, if included for this application, further reduces friction and wear on the piston skirts and cylinder walls, while also cutting down on operating noise. Every set is forged and machined 100% in the USA, ensuring a well-built product ready for the track.
This kit comes complete with high-quality wrist pins, locks, and JE Pro Seal premium piston rings, making it a comprehensive solution for rebuilding or upgrading your engine. Please note that these pistons are not CARB approved and cannot be shipped to California.
Specifications
- Brand
- JE Pistons
- Manufacturer Part #
- 359152
- UPC
- 193564035219
Frequently Asked Questions
JE Pistons Toyota 4U-GSE 86.00mm Bore STD Size 12.5:1 CR -1.0cc Dome FSR Piston (Set of 4)