12006AC400 Subaru PISTON SET,STD B, Price: 57.67$, Weight: 0.572kg


Make Number Name Availability Weight, kg Ship in, Days Price

Subaru

12006AC400

PISTON SET,STD B

9

0.572

2-3

57.67$

 

Substitutions

Make Number Name Availability Weight, kg Processing, days Price  
TEIKIN
551050050 
PISTON SET 050 EJ255-T (SET OF 8)
20
5.262
4-5
93.04$
 
TEIKIN
55105STD 
PISTON STD EJ255-T
5
0.658
4-5
87.77$
 

Compatibility

BodyEngineVehicle GradeMarketModel Year FromModel Year ToSuspensionDiagram
WAGON2500CC EMPI DOHC TURBO2.5XTUSA02.200611.2007NORMAL SUSPENSION View
BodyEngineVehicle GradeMarketModel Year FromModel Year ToSuspensionDiagram
SEDAN2500CC EMPI DOHC TURBOSTI LIMITEDUSA06.200606.2007NORMAL SUSPENSION View
BodyEngineVehicle GradeMarketModel Year FromModel Year ToTrainDiagram
WAGON OUTBACK2500CC EMPI DOHC TURBO25GT LIMITED-I(OBK:XT)USA11.200306.2006FULLTIME 4WD View
BodyEngineVehicle GradeMarketModel Year FromTrainGearboxDiagram
SEDAN2500CC EMPI DOHC TURBOSTI-PREMIUM WITH WING SPLUSA01.2017FULLTIME 4WD6SP MANUAL TRANSMISSION View
BodyMade For RegionEngineVehicle GradeMarketModel Year FromTrainDiagram
SEDANLHD2.5L DOHC TURBOSTI-HIGH WITH WING SPLEurope/General04.2017FULLTIME 4WD View

Engine piston set, STD size B for Subaru boxer

Bring back stock compression, quiet operation, and strong throttle response with this OE-grade piston set. Built for standard-bore blocks, the matched pistons, pins, and rings cut blow‑by, reduce cold slap, and keep combustion clean for daily and tuned use .

Why you need it

Pistons seal the chamber, carry the rings, and turn combustion force into crankshaft torque. Choose this set during a rebuild after wear, scoring, high oil burn, or knock. Grade B sizing restores factory skirt‑to‑wall clearance without an overbore.

How it works ⚙️

Each piston travels in the cylinder; compression and oil rings control gases and oil. The wrist pin links to the rod, sending power to the crank. Correct clearances and coated skirts lower friction and move heat into the cylinder wall.

If worn or broken ⚠️

Expect blue smoke, low compression, loss of power, cold start rattle, high emissions, and fuel use. Severe damage can crack ringlands, score bores, or seize the engine—endangering the turbo and catalytic converter.

Build highlights ✅

Light alloy, precise ring grooves, anti‑friction coating, weight‑matched set, true OE fit. Hone lightly, measure bores, set ring end gap, and seat clips correctly for long life.

Compatibility

  • WRX/Levorg
  • Impreza
  • Forester
  • Legacy
  • WRX