Here is the W126 alternator wire harness installed.


I sanded the belt surface of the small pulley with 80 grit sandpaper, making perpendicular lines to discourage belt slippage.


The old 6-blade fan and large pulley are on the left, and the upgrade 9-blade fan and small pulley are on the right.


Here is the pretty 80 amp alternator ready to install.


The body of the alternator is supposed to be grounded to the bracket, which is grounded to the engine block, which is grounded to the body through a strap. I sanded and used dielectric grease wherever the alternator touches the bracket.

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1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 350,000+ Miles