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 Kit |
| Description_EXT |
JE, Subaru, EJ Series, 3.917 in. Bore, 8.50:1, Inverted Dome/Dish, 4 Cyl. Piston Kit |
| Description_DES |
Piston Set, 2618, Inv Dome/Dish, 3.918 Bore, 1.130 CD, 0.905 Pin, Set of 4. |
| Description_INV |
JE Pistons, Piston Kit |
| 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_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 Kit |
| Description_TLE |
Subaru EJ257, 99.52 Bore, Dish, Set of 4 |
| Top Compression Ring Thickness |
0.0480 |
| Piston Pin Wall Thickness |
0.180 |
| Product Market |
Sport Compact |
| Wrist Pin Wall Thickness |
0.180 |
| Wrist Pin Outer Diameter |
0.905 |
| Oil Ring Thickness |
0.0995 |
| Category Hierarchy |
Auto>JE Pistons>Piston Kits>Sport Compact |
| Compression Height |
1.130 |
| Title |
JE Pistons - Subaru, EJ Series, 99.52 mm Bore, Piston Kit |
| Make |
SUBARU |
| Piston Pin Outside Diameter |
0.905 |
| Engine - Web |
EJ Series |
| Piston Average Weight |
395 |
| Cylinder Head |
EJ257 STI |
| Piston Pin Material |
5115 |
| Bore Diameter |
99.52 |
| Prop 65 (C, R or CR) |
CR |
| Industry |
Automotive |
| Piston Quantity |
4 |
| Product Type |
Engine Piston Kit |
| Piston Material |
2618 |
| Piston Volume |
-20.70 |
| Ring Set Included |
Yes |
| Wrist Pin Length |
2.250 |
| Prop 65 Yes/No |
Yes |
| Engine |
EJ SERIES |
| Title - Web |
JE Pistons Subaru EJ Series Piston Kit - 99.52 mm Bore - 1.130 in. CH, -20.70 CC |
| Piston Series |
JE Pistons |
| Second Compression Ring Thickness |
0.0480 |
| Piston Pin Length |
2.250 |
| Add-On |
JG4901-3917 |
| Engine Type |
ICE |
| Out of Stock Message |
Call for Availability |
| Add-On |
905-2250-18-51S |
| Add-On |
905-042-CT |
| Ringset Included |
Yes |
| Forging Type |
FSR |
| Piston Head Type |
Dish |
| Prop 65 - Short Label |
Prop 65 Warning Label.JPG |
| Wrist Pin Material |
5115 Low Carbon Steel, Case Hardened |
| Make - Web |
Subaru |
| Length |
5.0000 |
| Width |
9.0000 |
| Height |
5.0000 |
| Weight |
5.0000 |
