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Belt Pulleys

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Old Nov 25, 2025 | 11:44 PM
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resoplez
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2017 GLS 63 AMG
Belt Pulleys
Can anyone provide the M157 pulley and belt part numbers?

My WIS shows incomplete picture. I know Im missing the top central one as well as 2 or 3 more

A2782020519 Guide Pulley beetween Power Steering Pump and Alternator
A2782020619 Guide Pulley beetween Power Steering Pump and Refrigerant Compressor
A1522000070 Belt Tensioner

Also, not sure which of this belts is the right one
39934796 21.36 x 2526
29936796 20.50 x 2528

Thanks in advance

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