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JE Pistons Subaru EJ Series 310938L Pistons, Single - SUB STI EJ257 9.5KIT
JE Pistons Subaru EJ Series 310938L Pistons, Single - SUB STI EJ257 9.5KIT
A$703.15
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Description
JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for European, import, and sport compact applications, and they have been performance-proven in victory lane time and time again.
JE Pistons Subaru EJ Series pistons are single replacements. Available in different bore sizes for right or left, the pistons are specifically engineered for extreme applications up to, and including, professional competition. In such environments, the higher compression ratios and boost necessitate the high-tensile strength of forged 2618 aluminum construction. The skirts feature a proprietary Forged Side Relief (FSR) forging design that minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin. High-quality wrist pins, locks, and piston rings are included. Equip your engine with the best in forged pistons—JE Pistons.
Part Type
Pistons
Specifications
- Product Attributes - Brand
- JE Pistons
- Product Attributes - Manufacturer's Part Number
- 310938L
- Product Attributes - Part Type
- Pistons
- Product Attributes - Product Line
- JE Pistons Subaru EJ Series Pistons
- Product Attributes - UPC
- 193564019615
- Product Attributes - Piston Rings Included
- Yes
- Product Attributes - Bore (in.)
- 3.937 in.
- Product Attributes - Bore (mm)
- 100.000mm
- Product Attributes - Stroke
- 79.00mm
- Product Attributes - Engine Stroke Type
- Stock
- Product Attributes - Actual Engine Displacement
- 2.5L/2482cc
- Product Attributes - Rod Length
- 130.500mm
- Product Attributes - Piston Style
- Dish, with four valve reliefs
- Product Attributes - Piston Material
- Forged aluminum
- Product Attributes - Compression Height (in.)
- 1.209 in.
- Product Attributes - Piston Head Volume (cc)
- +7.60cc
- Product Attributes - Wrist Pin Style
- Press-fit or floating
- Product Attributes - Wrist Pin Retainers Included
- Yes
- Product Attributes - Wrist Pin Included
- Yes
- Product Attributes - Pin Diameter (in.)
- 0.905 in.
- Product Attributes - Piston Ring Thickness
- 0.048 in. x 0.048 in. x 0.100 in.
- Product Attributes - File Fit
- Yes
- Product Attributes - Gapless
- No
- Product Attributes - Top Ring Thickness
- 0.047 in.
- Product Attributes - Top Ring Material
- Carbon steel
- Product Attributes - Top Ring Facing Material
- Gas nitrided
- Product Attributes - Second Ring Thickness
- 0.047 in.
- Product Attributes - Second Ring Material
- Iron
- Product Attributes - Second Ring Facing Material
- Phosphate coated
- Product Attributes - Oil Ring Thickness
- 0.098 in.
- Product Attributes - Oil Ring Material
- Carbon steel
- Product Attributes - Oil Ring Tension
- Low
- Product Attributes - Remanufactured
- No
- Product Attributes - Quantity
- Sold individually.
- Product Attributes - Notes
- Fits left side exhaust valve orientation, will work with turbocharger or nitrous oxide.
Reference Information
| Brand Name/s | JE Pistons |
|---|---|
| StreetFX SKU | jep310938L |
| SFX Item ID | 4805161 |
| Supplier Item Code | 4805161 |
| Manufacturer SKU | 310938L |
| Manufacturer UPC | 193564019615 |
| Alternative References | EJ257, 9.5KIT |
Compatibility
| Application Data |
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