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2.5L 16v - EJ25 DOHC
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2.5L 16v - EJ25 DOHC
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Forged pistons for Subaru EJ25 DOHC 2.5L (23 mm pin). Chart, engine compatibility, vehicle compatibility, and OEM part numbers. Bore sizes 99.5–100.5 mm, compression ratio 8.0–11.5:1.
Specifications of the forged pistons offered by NSB Concept for Subaru 2.5 L 16 V EJ25 DOHC :
| Reference | OEM Bore 99,50 mm | OEM CR 8,2–8,4 :1 (turbo DOHC) | OEM Pin 23 mm | Height OEM Pin 30,25 mm | Range | Coating | Aluminium | Forging | Dome | Weight | Rings |
|---|---|---|---|---|---|---|---|---|---|---|---|
| K9051DA | 99.5 | 8:1 | 23 | 29.5 | Wossner | NC | NC | Slipper | -28.65 | NC | 995XPY |
| K9052DA | 99.5 | 8:1 | 23 | 30.25 | Wossner | NC | NC | Slipper | -25.3 | NC | 995XPY |
| JE-314335 | 99.5 | 8.5:1 | 23 | 30.3 | JE FSR | NC | 2618 | FSR | -24.4 | 392.0 | NC |
| WK599M995 | 99.5 | 8.7:1 | 23 | 30.25 | Wiseco | Skirt | 2618 | NC | -23.0 | NC | 9950VF |
| JE-314338 | 99.5 | 11.5:1 | 23 | 30.3 | JE Round | NC | 2618 | Round | -1.0 | 416.0 | NC |
| JE-314336 | 99.75 | 8.5:1 | 23 | 30.3 | JE FSR | NC | 2618 | FSR | -24.8 | 395.0 | NC |
| WK599M9975 | 99.75 | 8.7:1 | 23 | 30.25 | Wiseco | Skirt | 2618 | NC | -23.0 | NC | 9975VF |
| JE-314339 | 99.75 | 11.5:1 | 23 | 30.3 | JE Round | NC | 2618 | Round | -1.3 | 420.0 | NC |
| K9051D050 | 100.0 | 8.1:1 | 23 | 29.5 | Wossner | NC | NC | Slipper | -28.65 | NC | 1000XPY |
| K9052D050 | 100.0 | 8.1:1 | 23 | 30.25 | Wossner | NC | NC | Slipper | -25.3 | NC | 1000XPY |
| JE-314337 | 100.0 | 8.5:1 | 23 | 30.3 | JE FSR | NC | 2618 | FSR | -25.1 | 400.0 | NC |
| WK599M100 | 100.0 | 8.7:1 | 23 | 30.25 | Wiseco | Skirt | 2618 | NC | -23.0 | NC | 10000VF |
| JE-314340 | 100.0 | 11.5:1 | 23 | 30.3 | JE Round | NC | 2618 | Round | -1.5 | 424.0 | NC |
| K9051D100 | 100.5 | 8.1:1 | 23 | 29.5 | Wossner | NC | NC | Slipper | -28.65 | NC | 1005XPY |
| K9052D100 | 100.5 | 8.1:1 | 23 | 30.25 | Wossner | NC | NC | Slipper | -25.3 | NC | 1005XPY |
Compatibility (engine codes):
vehicles original equipped the EJ25 DOHC :
| Brand | Model | Engine code | Power | Years |
|---|---|---|---|---|
| Saab | 9-2X Aero | EJ255 | 230 hp | 2006 |
| Subaru | Forester XT (SG/SH) | EJ255 | 210–230 hp | 2004 – 2013 |
| Subaru | Impreza WRX | EJ255 | 224–265 hp | 2006 – 2014 |
| Subaru | Impreza WRX STI | EJ257 | 300–310 hp | 2004 – 2021 |
| Subaru | Legacy GT (BL/BM) | EJ255 | 250–265 hp | 2005 – 2012 |
| Subaru | Outback XT (BP) | EJ255 | 243–250 hp | 2005 – 2009 |
OEM piston references :
Warning: Before installation, please verify the integrity and conformity of each component of the piston kit as well as the correctness of the assembly in the engine; any warranty is strictly limited to the parts included in the piston kit.
