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K. Wiggins
K. Wiggins, Classic Car Mechanic
Category: Classic Car
Satisfied Customers: 2991
Experience:  ASE Certified Technician, Associates Degree in Automotive Technology, 15+ years in the trade
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I have a impala i am putting a serpentine belt system on it

Customer Question

I have a 69 impala i am putting a serpentine belt system on it my question is the plug on the new alternator has three wires red black yellow any there 69 impala has two on the plug which are dark blue and white and I am not talking about the main power wire I just need to know what wires match so I can get things going
Submitted: 1 year ago.
Category: Classic Car
Expert:  K. Wiggins replied 1 year ago.

There's a few ways to wire these, the simplest is going to be to wire the Dark blue (runs from your batt or GEN light) to the L terminal of the new unit and the white to the S terminal. No need to use the thrid one. Here's the info from GM with connector pin outs.

Expert:  K. Wiggins replied 1 year ago.

here's a simpler pic

Customer: replied 1 year ago.
You were great help that was what i need to know .
Expert:  K. Wiggins replied 1 year ago.

Glad I could help you out, thanks for using Just Answer!