As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for European, import and sport compact applications. Engineered, forged and machined 100% in the USA, JE Pistons are designed for each specific engine and racing application to provide the ultimate combination of durability and performance. From drift track to drag strip, JE Pistons performance is proven in victory lane time and time again. Equip your engine with the best in forged pistons.
Specifications:
| Description_ASM |
Subaru EJ257 |
| Description_DEF |
Engine Piston |
| Description_DES |
Piston Single, 2618, Inv Dome/Dish, 3.927 Bore, 1.130 CD, 0.905 Pin, Set of 1. |
| Description_INV |
JE Pistons, Piston |
| Description_FAB |
- Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
- Designed specifically for each engine and use application to provide optimized performance durability
- Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin
- Skirt coating (depending on application) reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise
- Accumulator groove (depending on application) helps reduce pressure from combustion gases, reducing ring fluttering and improving ring seal for consistent power
- Includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings
- Made 100% in the USA
|
| Description_EXT |
JE, Subaru, EJ Series, 3.927 in. Bore, 8.50:1, Inverted Dome/Dish, Left Piston |
| Description_TLE |
Subaru EJ257, 99.75 Bore, Dish, Set of 1 |
| Description_MKT |
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for European, import and sport compact applications. Engineered, forged and machined 100% in the USA, JE Pistons are designed for each specific engine and racing application to provide the ultimate combination of durability and performance. From drift track to drag strip, JE Pistons? performance is proven in victory lane time and time again. Equip your engine with the best in forged pistons. |
| Description_SHO |
Piston |
| Engine Type |
ICE |
| Engine - Web |
EJ Series |
| Product Type |
Engine Piston |
| Make |
SUBARU |
| Piston Head Type |
Dish |
| Compression Height |
1.130 |
| Piston Quantity |
1 |
| Ring Set Included |
Yes |
| Wrist Pin Wall Thickness |
0.180 |
| Forging Type |
FSR |
| Piston Series |
JE Pistons |
| Piston Pin Material |
5115 |
| Piston Pin Wall Thickness |
0.180 |
| Wrist Pin Length |
2.250 |
| Wrist Pin Outer Diameter |
0.905 |
| Prop 65 (C, R or CR) |
CR |
| Title |
JE Pistons - Subaru, EJ Series, 99.75 mm Bore, Piston |
| Piston Pin Outside Diameter |
0.905 |
| Category Hierarchy |
Auto>JE Pistons>Single Replacement Pistons>Sport Compact |
| Oil Ring Thickness |
0.0995 |
| Piston Average Weight |
391 |
| Product Market |
Sport Compact |
| Top Compression Ring Thickness |
0.0480 |
| Piston Orientation |
Left |
| Piston Volume |
-21.10 |
| Bore Diameter |
99.75 |
| Title - Web |
JE Pistons Subaru EJ Series Piston - 99.75 mm Bore - 1.130 in. CH, -21.10 CC |
| Second Compression Ring Thickness |
0.0480 |
| Out of Stock Message |
Call for Availability |
| Piston Pin Length |
2.250 |
| Add-On |
905-042-CT |
| Piston Material |
2618 |
| Engine |
EJ SERIES |
| Ringset Included |
Yes |
| Add-On |
JG4901-3927 |
| Industry |
Automotive |
| Prop 65 Yes/No |
Yes |
| Cylinder Head |
EJ257 STI |
| Add-On |
905-2250-18-51S |
| Wrist Pin Material |
5115 Low Carbon Steel, Case Hardened |
| Make - Web |
Subaru |
| Prop 65 - Short Label |
Prop 65 Warning Label.JPG |
| Length |
5.0000 |
| Width |
5.0000 |
| Height |
5.0000 |
| Weight |
1.0000 |
