11861AA020 Subaru HOSE AY-MA VAC, Price: 12.63$, Weight: 0.191kg


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

Subaru

11861AA020

HOSE AY-MA VAC

0.191

7-10

12.63$

Not Available

Originals

Make Number Name Availability Weight, kg Processing, days Price  
Subaru
11861AA020 
HOSE AY-MA VAC
0
0.22
-
13.34$
Not Available

Compatibility

BodyEngineVehicle GradeMarketModel Year FromModel Year ToTrainDiagram
ワゴン2.0L EMPI DOHC ターボGT-HJapan05.201210.2013フルタイム4リンクドウ View
BodyEngineVehicle GradeMarketModel Year FromModel Year ToTrainDiagram
ワゴン2.5L EMPI DOHC ターボS-エデイシヨンJapan06.201106.2012フルタイム4リンクドウ View
BodyEngineVehicle GradeMarketModel Year FromModel Year ToTrainDiagram
ワゴン2.0L EMPI DOHC ターボ20GTJapan05.201011.2011フルタイム4リンクドウ View
BodyEngineVehicle GradeMarketModel Year FromModel Year ToSuspensionDiagram
ワゴン2.0L EMPI DOHC ターボBLITZEN2006Japan03.200504.2006ノーマル サスペンシヨン View

Vacuum Manifold Hose Assembly for Subaru ⛽🔧

Keep your Subaru flat-four running smooth with a fresh vacuum manifold hose assembly. This molded line delivers stable intake vacuum to key systems like the PCV, purge/EVAP solenoid, and intake control valves, helping the ECU hold steady idle, clean emissions, and crisp throttle response. Built to OEM geometry and diameter, it resists kinks, collapse, and oil vapor hardening.

Why this part is needed

Heat cycles, fuel vapors, and age turn factory hoses brittle. Tiny cracks or loose ends create unmetered air leaks, throwing off fuel trims and making the engine work harder. Replacing the line restores airtight sealing and reliable vacuum signals.

How it works

During light throttle, the intake creates negative pressure. This hose channels that vacuum to actuators and valves so the control unit can manage idle, purge flow, and mixture. Correct wall thickness and bends maintain flow and prevent flattening.

What happens if it’s broken

Expect rough idle, hesitation, higher fuel use, whistle noises, hard warm starts, and a check engine light (common lean/EVAP codes). Left unchecked, it can foul plugs, stress the catalytic converter, and shorten sensor life. Replacement is a quick, plug-and-play fix 🛠️.

Compatibility

  • Legacy
  • Impreza
  • Forester
  • Exiga