12006AC390 Subaru PISTON SET,STD A, Price: 61.91$, Weight: 0.57kg
| Make | Number | Name | Availability | Weight, kg | Ship in, Days | Price |
|---|---|---|---|---|---|---|
Subaru |
12006AC390 |
PISTON SET,STD A |
7 |
0.57 |
2-3 |
61.91$ |
Compatibility
| Body | Engine | Vehicle Grade | Market | Model Year From | Model Year To | Suspension | Diagram |
|---|---|---|---|---|---|---|---|
| WAGON | 2500CC EMPI DOHC TURBO | 2.5XT | USA | 02.2006 | 11.2007 | NORMAL SUSPENSION | View |
| Body | Engine | Vehicle Grade | Market | Model Year From | Model Year To | Suspension | Diagram |
|---|---|---|---|---|---|---|---|
| SEDAN | 2500CC EMPI DOHC TURBO | STI LIMITED | USA | 06.2006 | 06.2007 | NORMAL SUSPENSION | View |
| Body | Engine | Vehicle Grade | Market | Model Year From | Model Year To | Train | Diagram |
|---|---|---|---|---|---|---|---|
| WAGON OUTBACK | 2500CC EMPI DOHC TURBO | 25GT LIMITED-I(OBK:XT) | USA | 11.2003 | 06.2006 | FULLTIME 4WD | View |
| Body | Engine | Vehicle Grade | Market | Model Year From | Train | Gearbox | Diagram |
|---|---|---|---|---|---|---|---|
| SEDAN | 2500CC EMPI DOHC TURBO | STI-PREMIUM WITH WING SPL | USA | 01.2017 | FULLTIME 4WD | 6SP MANUAL TRANSMISSION | View |
| Body | Made For Region | Engine | Vehicle Grade | Market | Model Year From | Train | Diagram |
|---|---|---|---|---|---|---|---|
| SEDAN | LHD | 2.5L DOHC TURBO | STI-HIGH WITH WING SPL | Europe/General | 04.2017 | FULLTIME 4WD | View |
Subaru Boxer Engine Piston Set STD A — OEM-grade power and reliability
Why you need it
When your Subaru starts to lose power, burn oil, or rattle on cold starts, the pistons and ring grooves are often the cause. A matched standard size A set restores factory compression, smooth idle, and clean emissions. Ideal for engines within STD A bore spec during a refresh or full rebuild .
How it works
The piston rides in the cylinder, taking combustion force on the crown and sending it through the wrist pin and connecting rod to the crankshaft. The ring pack seals combustion, controls oil, and carries heat into the cylinder wall. Precision skirt profile and low-friction coating reduce slap and wear, keeping the flat-four quiet and efficient .
What happens if it’s worn or broken
Symptoms include low compression, blow‑by, blue smoke, misfire under load, and rising oil use. You may hear knock, see fouled plugs, and find metal in the pan. Continued driving can score bores, damage bearings and turbo, and lead to catastrophic failure.
Install tips
Measure bores and confirm STD A group, lightly hone, check ring end gaps, verify piston‑to‑wall clearance, orient arrows correctly, oil pins/clips, and torque rod bolts. Use fresh gaskets and proper break‑in for a long, clean run .
Compatibility
- Wrx/Levorg
- Impreza
- Forester
- Legacy
- Wrx