23770AA040 Subaru PULLEY-IDLER, Price: 36.34$, Weight: 0.345kg


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

Subaru

23770AA040

PULLEY-IDLER

0

0.345

 Dispatch 24h

36.34$

Not Available

Originals

Make Number Name Availability Weight, kg Processing, days Price  
Subaru
23770AA040 
PULLEY-IDLER
6
0.397
2-3
24.57$
 

Compatibility

BodyMade For RegionEngineVehicle GradeMarketModel Year FromModel Year ToDiagram
WAGONRHD2.0L DOHC TURBO DIESELTD-DEKEurope/General08.201010.2012 View
BodyMade For RegionEngineVehicle GradeMarketModel Year FromModel Year ToDiagram
WAGONRHD2000CC DOHC TURBO DIESEL20TDX('11MY-=20DX)Europe/General03.201009.2011 View
BodyMade For RegionEngineVehicle GradeMarketModel Year FromModel Year ToDiagram
WAGON OUTBACKLHD2000CC DOHC TURBO DIESEL20DSREurope/General05.201311.2014 View
BodyMade For RegionEngineVehicle GradeMarketModel Year FromModel Year ToDiagram
XUVRHD2000CC DOHC TURBO DIESEL20DSREurope/General07.201303.2015 View

Engine Belt Idler Pulley – Smooth Drive, Quiet Ride βš™οΈ

This idler pulley is a key guide wheel in the belt drive system. Its job is simple but critical: keep the accessory/drive belt running straight, with the correct wrap angle around other pulleys. Without it, the belt can wander, slip, or squeal, especially during cold starts or when electrical load increases (A/C, alternator, power steering) ?.

Why this part is needed

Belts must stay aligned and stable to transfer engine power to accessories. The idler pulley supports the belt path where no driven component exists, reducing vibration and helping maintain consistent tension across the system.

How it works

Inside the pulley is a sealed bearing that lets the wheel spin freely while the belt rides on its outer surface. As the engine runs, the pulley keeps the belt tracking true, preventing edge wear and heat buildup.

What happens if it’s worn or broken

A failing bearing can cause chirping, grinding, or a high-pitch squeal ?. If it locks up or wobbles, the belt may shred or jump off, leading to loss of charging, overheating, or power steering assist. In severe cases, belt debris can damage nearby components.

Compatible Models

  • Lexus LX470