Keeps your BMW, SSANGYONG running the way it should — this Aftermarket part restores the original function of a worn or failed V belt Deflection Pulley guide Pulley OE Ref 11287549557, built to OEM reference 422137 rather than a generic approximation.
Aftermarket identifies it as AMCP-31988-BM036. Match that against OEM 422137 or your old part before fitting, particularly if your vehicle's had any running changes across its production years.
Confirmed for selected BMW, SSANGYONG vehicles. Use the vehicle registration lookup tool if you're not certain, or browse Belt Drive for other options.