Keeps your various running the way it should — this RIDEX part restores the original function of a worn or failed Vribbed Belt Tensioner Pulley OE Ref 13 40 555, built to OEM reference 1340514 rather than a generic approximation.
RIDEX identifies it as 312D0032, EAN: 4059191240661. Match that against OEM 1340514 or your old part before fitting, particularly if your vehicle's had any running changes across its production years.
Confirmed for selected various vehicles. Use the vehicle registration lookup tool if you're not certain, or browse Belt Drive for other options.