5 belts required for 420SEL, 560SEL, 560SEC and 560SL.
If you have one belt that is going bad, replace them all simultaneously. You don't want to have to do this job again in the near future. When the belts are off, it is time to check all the bearings in the engine accessories, which include the alternator, air pump, water pump, idler pulley, AC pump, and Power Steering pump. Watch the videos below and Kent will explain.
420 560 V8 Engine Drive Belt Replacement Kit w/ Video Instructions
$62.00
SKU:
GEG-560BELTS