• Products
  • 038903315AN VAG ROLLER TENSIONER / TENSIONER

038903315AN VAG ROLLER TENSIONER / TENSIONER, Price: 74.87$, Weight: 1.5kg

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

    VAG

    038903315AN

    ROLLER TENSIONER / TENSIONER

    		 57

    1.5

    2-3

    74.87$
     

    Originals

    Make Number Name Availability Weight, kg Processing, days Price  
    AUDI
    038903315AN 
    TENSIONER
    		0
    0.575
    2-3
    71.18$
    		 Not Available

    Substitutions

    Make Number Name Availability Weight, kg Processing, days Price  
    FEBEST
    0187ZZE150 
    PULLEY IDLER
    		77
    0.121
    2-3
    17.23$
     

    Accessory Belt Tension Roller for VAG Engines

    This belt tension roller is a key part of the auxiliary drive system on many VW, Audi, SEAT, and Ε koda diesel and petrol engines. Its job is to keep the serpentine/aux belt at the correct tension so the alternator, power steering pump, and A/C compressor can run smoothly βš™οΈ.

    Why This Part Is Needed

    As the belt stretches with age and heat cycles, stable tension becomes critical. The roller maintains the right belt grip, prevents slip, and reduces vibration and squeal βœ….

    How It Works

    The internal bearing lets the pulley spin freely while the tensioning mechanism applies controlled pressure to the belt. This keeps belt alignment correct across all pulleys and protects accessories from shock loads ?.

    What Happens If It Fails

    A worn bearing can whine, grind, or seize. A weak tensioner can cause belt slip, charging issues, loss of A/C, or heavy steering. In severe cases the belt can jump off, leaving you stranded and risking engine bay damage ??.

    Technician Tip

    Replace the roller when doing a belt service and inspect pulley alignment for best long-term reliability.