Alternator pulley size

RayDunn

Well-known member
Jul 21, 2004
83
0
42
Nashville, TN
Does anyone know what size alternator pulley size I need for a 95 Disco with a 3.9? I need a new alternator and keep seeing some with a 67mm pulley and some with a 52mm pulley. Thanks.
 
F

frickjp

Guest
95 came with the bigger pulley, but the smaller one charges more at lower speed.
 

MUSKYMAN

Well-known member
Apr 19, 2004
8,277
0
OverBarrington IL
no Jeffs all about this one, after one of his posts I swapped to the smaller pulley on my 94 and it has made a nice difference at idle.
 

RayDunn

Well-known member
Jul 21, 2004
83
0
42
Nashville, TN
1. How does the pulley size effect charging?

2. Bottom line: It doesn't matter which one I get, either will work. Smaller simply charges a little more.

Thanks for the help.