12033AB640 Subaru RING SET-PISTON STD, Price: 96.03$, Weight: 0.09kg


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

Subaru

12033AB640

RING SET-PISTON STD

14

0.09

2-3

96.03$

 

Originals

Make Number Name Availability Weight, kg Processing, days Price  
Subaru
12033AB640 
RING SET-PISTON STD
3
0.104
 Dispatch 24h
115.24$
 

Substitutions

Make Number Name Availability Weight, kg Processing, days Price  
Subaru
12033AB070 
PISTON RING SET STD
0
0.104
-
96.03$
Not Available

Compatibility

BodyEngineVehicle GradeMarketModel Year FromModel Year ToTrainDiagram
セダン2.0L EMPI DOHC ハイパワーターボSTI TS TYPE RA NBRJapan06.201304.2014フルタイム4リンクドウ View
BodyEngineVehicle GradeMarketModel Year FromTrainGearboxDiagram
セダン2.0L EMPI DOHC ハイパワーターボS208 NBR CHALLENGE PACKJapan02.2017フルタイム4リンクドウ6ソク マニユアル トランスミツシヨン View

Standard-size piston ring set for Subaru boxer engines

Why this part is needed

This ring pack restores tight cylinder sealing, bringing back lost compression, clean combustion, and stable idle. It controls oil on the cylinder walls, cuts blue smoke, and protects the catalytic converter. Ideal for rebuilds or oil-burning engines .

How it works

The top compression ring locks in combustion pressure; the second ring backs up sealing and scrapes residual gases; the 3-piece oil ring meters oil with a spring expander. Moly-faced and ductile-iron materials seat quickly on a proper hone, while correct end gaps maintain seal when hot .

If the rings are worn or damaged

Expect low power, hard starts, high blow-by, oily plugs, blue exhaust, rising fuel use, and clogged PCV. Excess debris can score cylinder walls and stress the turbo (where fitted). Emissions climb and oil consumption spikes.

Pro install tips

Hone to spec, verify ring end gaps in the bore, stagger gaps 120°, orient pistons correctly, lube lightly, torque per manual, and perform gentle break-in with an early oil change.

Compatibility

  • Impreza
  • Wrx/Levorg