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 Billet |
| Description_DEF |
Engine Piston Kit |
| Description_DES |
Piston Set, 2618, Inv Dome/Dish, 3.937 Bore, 1.210 CD, 0.905 Pin, Set of 4. |
| Description_EXT |
JE, Subaru, EJ Series, 3.937 in. Bore, 8.80:1, Inverted Dome/Dish, 4 Cyl. Piston Kit |
| 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, 100.00 Bore, Dish, Set of 4 |
| Piston Material |
2618 |
| Top Compression Ring Thickness |
0.0480 |
| Cylinder Head |
EJ257 STI |
| Title |
JE Pistons - Subaru, EJ Series, 100.00 mm Bore, Piston Kit |
| Piston Quantity |
4 |
| Ring Set Included |
Yes |
| Piston Average Weight |
391 |
| Compression Height |
1.210 |
| Category Hierarchy |
Auto>JE Pistons>Piston Kits>Sport Compact |
| Product Market |
Sport Compact |
| Bore Diameter |
100.00 |
| Product Type |
Engine Piston Kit |
| Prop 65 (C, R or CR) |
CR |
| Engine - Web |
EJ Series |
| Wrist Pin Length |
2.250 |
| Add-On |
905-2250-18-93S |
| Piston Series |
JE Pistons |
| Piston Volume |
-15.10 |
| Title - Web |
JE Pistons Subaru EJ Series Piston Kit - 100.00 mm Bore - 1.210 in. CH, -15.10 CC |
| Add-On |
905-042-CT |
| Piston Pin Outside Diameter |
0.905 |
| Out of Stock Message |
Call for Availability |
| Second Compression Ring Thickness |
0.0480 |
| Industry |
Automotive |
| Prop 65 Yes/No |
Yes |
| Add-On |
JG4904-3937 |
| Wrist Pin Material |
9310 Nickel Carbon Steel Alloy |
| Wrist Pin Outer Diameter |
0.905 |
| Make - Web |
Subaru |
| Oil Ring Thickness |
0.0995 |
| Piston Pin Length |
2.250 |
| Piston Pin Material |
9310 |
| Engine Type |
ICE |
| Piston Head Type |
Dish |
| Forging Type |
FSR |
| Ringset Included |
Yes |
| Engine |
EJ SERIES |
| Make |
SUBARU |
| Piston Pin Wall Thickness |
0.180 |
| Prop 65 - Short Label |
Prop 65 Warning Label.JPG |
| Wrist Pin Wall Thickness |
0.180 |
| Length |
5.0000 |
| Width |
9.0000 |
| Height |
5.0000 |
| Weight |
5.0000 |
