99071AB333 Subaru HOSE-VACUUM, Price: 18.86$, Weight: 0.435kg


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

Subaru

99071AB333

HOSE-VACUUM

0

0.435

2-3

18.86$

Not Available

Compatibility

BodyEngineVehicle GradeMarketModel Year FromModel Year ToSuspensionDiagram
WAGON2500CC EMPI DOHC TURBOFORESTER SPORTSUSA02.200711.2007NORMAL SUSPENSION View
BodyEngineVehicle GradeMarketModel Year FromModel Year ToSuspensionDiagram
WAGON2500CC EMPI DOHC TURBOWRXUSA04.200506.2007NORMAL SUSPENSION View
BodyEngineVehicle GradeMarketModel Year FromModel Year ToSuspensionDiagram
PICK UP TRACK2500CC EMPI DOHC TURBOBAJA-BUSA02.200304.2006NORMAL SUSPENSION 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

Engine Vacuum Line for Subaru — OE-Grade Replacement

This Subaru vacuum hose keeps intake vacuum stable for idle control, turbo response, and emissions. Built from heat‑resistant compound, it withstands oil mist, fuel vapors, and under‑hood temperature. Exact inner diameter and wall strength prevent collapse under high vacuum and keep sensors and actuators reading correctly.

Why you need it

The line feeds vacuum to key parts like boost control solenoids, bypass valves, purge systems, and pressure sensors. A tight, flexible hose restores smooth idle, steady boost, cleaner emissions, and better fuel economy.

How it works

Manifold vacuum varies with throttle. This hose carries those pressure changes to valves and regulators, letting the ECU command airflow and boost precisely. Proper routing and clamp tension ensure instant, leak‑free response.

If the hose fails ⚠️

Cracks or swelling cause unmetered air leaks: rough idle, stalling, lean codes (e.g., P0171), weak boost, turbo flutter, poor MPG, and higher emissions. In severe cases, drivability suffers and the check light appears.

Fitment notes

Direct fit. Match length and bends, cut ends square, and secure with quality clamps. Replace brittle tees and check valves during service for best results.

Compatibility

  • Wrx/Levorg
  • Impreza
  • Legacy
  • Forester