JE Pistons Subaru EJ Series 291061R Pistons, Single - SUB STI EJ257 8.5KIT
JE Pistons Subaru EJ Series 291061R Pistons, Single - SUB STI EJ257 8.5KIT
A$703.15
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Description
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 04:07:42
Features
Note for Pistons, Rings, Rotors, Rods and engine internals
Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.
(keyword: pistons)Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | JE Pistons |
| StreetFX SKU | jep291061R |
| SFX Item ID | 4802581 |
| Accounting SKU | jep-291061R |
| Manufacturer SKU | 291061R |
| Manufacturer UPC | 193564019547 |
| Alternative References | 291061R, JEP-291061R |
Pistons, Single - SUB STI EJ257 8.5KIT
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.
| Product Attributes | |
|---|---|
| Brand | JE Pistons |
| Manufacturer's Part Number | 291061R |
| Part Type | Pistons |
| Product Line | JE Pistons Subaru EJ Series Pistons |
| UPC | 193564019547 |
| Piston Rings Included | Yes |
| Bore (in.) | 3.918 in. |
| Bore (mm) | 99.520mm |
| Stroke | 79.00mm |
| Engine Stroke Type | Stock |
| Actual Engine Displacement | 2.5L/2458cc |
| Rod Length | 130.500mm |
| Piston Style | Dish, with four valve reliefs |
| Piston Material | Forged aluminum |
| Compression Height (in.) | 1.209 in. |
| Piston Head Volume (cc) | -16.50cc |
| Wrist Pin Style | Press-fit or floating |
| Wrist Pin Retainers Included | Yes |
| Wrist Pin Included | Yes |
| Pin Diameter (in.) | 0.905 in. |
| Piston Ring Thickness | 1.20mm x 1.20mm x 2.50mm |
| File Fit | Yes |
| Gapless | Yes |
| Top Ring Thickness | 1.2mm |
| Second Ring Thickness | 1.2mm |
| Oil Ring Thickness | 2.5mm |
| Remanufactured | No |
| Quantity | Sold individually. |
| Notes | Fits EJ257 STI motors. Designed to fit right exhaust valve orientation. |
Compatibility
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