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 Kit |
| Description_DES |
Piston Set, 2618, Inv Dome/Dish, 3.927 Bore, 1.130 CD, 0.905 Pin, Set of 4. |
| Description_EXT |
JE, Subaru, EJ Series, 3.927 in. Bore, 8.50:1, Inverted Dome/Dish, 4 Cyl. 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_INV |
JE Pistons, Piston Kit |
| 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_TLE |
Subaru EJ257, 99.75 Bore, Dish, Set of 4 |
| Description_SHO |
Piston Kit |
| Oil Ring Thickness |
0.0995 |
| Ringset Included |
Yes |
| Forging Type |
FSR |
| Engine Type |
ICE |
| Piston Pin Material |
5115 |
| Piston Pin Wall Thickness |
0.180 |
| Piston Material |
2618 |
| Compression Height |
1.130 |
| Top Compression Ring Thickness |
0.0480 |
| Piston Average Weight |
391 |
| Prop 65 (C, R or CR) |
CR |
| Bore Diameter |
99.75 |
| Product Market |
Sport Compact |
| Piston Series |
JE Pistons |
| Piston Quantity |
4 |
| Piston Head Type |
Dish |
| Make |
SUBARU |
| Piston Pin Outside Diameter |
0.905 |
| Title |
JE Pistons - Subaru, EJ Series, 99.75 mm Bore, Piston Kit |
| Wrist Pin Outer Diameter |
0.905 |
| Engine - Web |
EJ Series |
| Wrist Pin Wall Thickness |
0.180 |
| Add-On |
JG4901-3927 |
| Industry |
Automotive |
| Second Compression Ring Thickness |
0.0480 |
| Add-On |
905-2250-18-51S |
| Engine |
EJ SERIES |
| Piston Pin Length |
2.250 |
| Title - Web |
JE Pistons Subaru EJ Series Piston Kit - 99.75 mm Bore - 1.130 in. CH, -21.10 CC |
| Prop 65 Yes/No |
Yes |
| Product Type |
Engine Piston Kit |
| Piston Volume |
-21.10 |
| Out of Stock Message |
Call for Availability |
| Add-On |
905-042-CT |
| Cylinder Head |
EJ257 STI |
| Category Hierarchy |
Auto>JE Pistons>Piston Kits>Sport Compact |
| Ring Set Included |
Yes |
| Prop 65 - Short Label |
Prop 65 Warning Label.JPG |
| Wrist Pin Length |
2.250 |
| Make - Web |
Subaru |
| Wrist Pin Material |
5115 Low Carbon Steel, Case Hardened |
| Length |
5.0000 |
| Width |
9.0000 |
| Height |
5.0000 |
| Weight |
5.0000 |
