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 Stroker |
| Description_DEF |
Engine Piston |
| Description_DES |
Piston Single, 2618, Inv Dome/Dish, 3.937 Bore, 1.130 CD, 0.905 Pin, Set of 1. |
| Description_EXT |
JE, Subaru, EJ Series, 3.937 in. Bore, 8.50:1, Inverted Dome/Dish, Right Piston |
| 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_TLE |
Subaru EJ257, 100.00 Bore, Dish, Set of 1 |
| Description_SHO |
Piston |
| 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. |
| Piston Pin Material |
5115 |
| Engine |
EJ SERIES |
| Ringset Included |
Yes |
| Engine Type |
ICE |
| Piston Head Type |
Dish |
| Product Market |
Sport Compact |
| Forging Type |
FSR |
| Compression Height |
1.130 |
| Piston Pin Wall Thickness |
0.180 |
| Piston Series |
JE Pistons |
| Oil Ring Thickness |
0.0995 |
| Make |
SUBARU |
| Wrist Pin Wall Thickness |
0.180 |
| Wrist Pin Outer Diameter |
0.905 |
| Engine - Web |
EJ Series |
| Piston Material |
2618 |
| Piston Orientation |
Right |
| Industry |
Automotive |
| Piston Quantity |
1 |
| Prop 65 Yes/No |
Yes |
| Prop 65 (C, R or CR) |
CR |
| Piston Pin Outside Diameter |
0.905 |
| Category Hierarchy |
Auto>JE Pistons>Single Replacement Pistons>Sport Compact |
| Piston Volume |
-21.50 |
| Bore Diameter |
100.00 |
| Cylinder Head |
EJ257 STI |
| Top Compression Ring Thickness |
0.0480 |
| Piston Average Weight |
396 |
| Title |
JE Pistons - Subaru, EJ Series, 100.00 mm Bore, Piston |
| Product Type |
Engine Piston |
| Ring Set Included |
Yes |
| Make - Web |
Subaru |
| Wrist Pin Length |
2.250 |
| Prop 65 - Short Label |
Prop 65 Warning Label.JPG |
| Wrist Pin Material |
5115 Low Carbon Steel, Case Hardened |
| Add-On |
905-042-CT |
| Second Compression Ring Thickness |
0.0480 |
| Piston Pin Length |
2.250 |
| Add-On |
JG4901-3937 |
| Out of Stock Message |
Call for Availability |
| Title - Web |
JE Pistons Subaru EJ Series Piston - 100.00 mm Bore - 1.130 in. CH, -21.50 CC |
| Add-On |
905-2250-18-51S |
| Length |
5.0000 |
| Width |
5.0000 |
| Height |
5.0000 |
| Weight |
1.0000 |
