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SCHAEFFLER INA Schaeffler INA Timing Belt Tensioner Pulley 531 0103 20 531010320

Schaeffler INA Timing Belt Tensioner Pulley 531 0103 20

Compatible with AUDI COUPE B3 (89, 8B3) , AUDI 80 B4 Sedans (8C2) , AUDI 80 B4 Avant (8C5) Show more info
Ensures proper tension for the timing belt drive system. Essential for maintaining correct engine timing and preventing damage.
29.89 EUR
inc. VAT 21%
In stock 3
Delivery 1 day (18.05.2026)
PN 531 0103 20
Make SCHAEFFLER INA
EAN 4005108142764

The Schaeffler INA Timing Belt Tensioner Pulley 531 0103 20 is a critical component in your vehicle's gas distribution mechanism. Its primary function is to maintain the optimal tension of the timing belt, which is crucial for the synchronized operation of the engine's camshaft and crankshaft. Proper belt tension prevents slippage, ensuring that the valves open and close at the precise moments required for efficient combustion. A worn or improperly tensioned belt can lead to significant engine damage, including bent valves and piston damage. This pulley is designed for durability and consistent performance, contributing to the longevity of your engine's timing system. By choosing a quality tensioner pulley from Schaeffler INA, you are investing in reliability and precision. Regular inspection and replacement of timing belt components, including the tensioner pulley, are recommended as part of your vehicle's scheduled maintenance to avoid costly repairs.

  • Maintains correct timing belt tension
  • Ensures synchronized engine operation
  • Prevents belt slippage and premature wear
  • Critical for preventing engine damage
  • Durable construction for long service life
  • Designed for specific vehicle applications
  • Part of the Schaeffler INA quality range
  • Recommended for routine maintenance
Outer diameter [mm]
72
Width [mm]
27
Bore diameter [mm]
8
OE-number
078 109 243 K
Substance of Very High Concern
Does not contain SVHC substances!
  • AUDI
    • COUPE B3 (89, 8B3)
      • 2.6 (110kW/150PS)
      • 2.8 (128kW/174PS)
      • 2.6 quattro (110kW/150PS)
      • 2.8 quattro (128kW/174PS)
    • 80 B4 Sedans (8C2)
      • 2.6 (110kW/150PS)
      • 2.8 (128kW/174PS)
      • 2.6 quattro (110kW/150PS)
      • 2.8 quattro (128kW/174PS)
    • 80 B4 Avant (8C5)
      • 2.6 (110kW/150PS)
      • 2.6 quattro (110kW/150PS)
      • 2.8 quattro (128kW/174PS)
      • 2.8 (128kW/174PS)
    • CABRIOLET B3 (8G7)
      • 2.6 (110kW/150PS)
      • 2.8 (128kW/174PS)
    • A8 D2 (4D2, 4D8)
      • 2.8 (128kW/174PS)
      • 2.8 quattro (128kW/174PS)
      • 2.8 (120kW/163PS)
      • 2.8 quattro (120kW/163PS)
    • A4 B5 (8D2)
      • 2.6 (110kW/150PS)
      • 2.8 (128kW/174PS)
      • 2.6 quattro (110kW/150PS)
      • 2.8 quattro (128kW/174PS)
      • 2.6 (102kW/139PS)
    • A6 C4 (4A2)
      • 2.6 (110kW/150PS)
      • 2.8 (128kW/174PS)
      • 2.6 quattro (110kW/150PS)
      • 2.8 quattro (128kW/174PS)
      • 2.6 (102kW/139PS)
      • 2.8 (120kW/163PS)
    • A6 C4 Avant (4A5)
      • 2.6 (110kW/150PS)
      • 2.8 (128kW/174PS)
      • 2.8 quattro (128kW/174PS)
      • 2.6 quattro (110kW/150PS)
      • 2.6 (102kW/139PS)
    • A4 B5 Avant (8D5)
      • 2.6 (110kW/150PS)
      • 2.6 quattro (110kW/150PS)
AUDI
078 109 243 K 078109243K
SEAT
078 109 243 K 078109243K
SKODA
078 109 243 K 078109243K
VW
078 109 243 K 078109243K
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