IsuzuGeek wrote:Anyone know if there is an easy upgrade for 1st gens with a 2.6? I want to run dual batteries and I would like a better alternator to juice everything up.
Stock you have a Hitachi LR150-718 that is rated at 50 amps. It's a little confusing because the LR160-718 is listed for the same application and it produces 60 amps. Both use a 350 plug, rotates CW, 175mm distance between mounting ears and the pulley is 72mm OD x 17mm V-channel(Pulley class V1). This alternator was used from 1988-95 on all the 4 cylinders.
The 1995 Nissan Pathfinder and 1995-96 Pickup use a Hitachi LR170-745. It uses a 300 plug, rotates CW, 175mm distance between mounting ears and the pulley class is V1. So on paper it looks like you could pull one of these from the junk yard and get a 70 amp alternator with the only mod being a little wiring. I'm not sure it would be worth it though for 10-20 extra amps of power. There is a High Output version made by Mean Green, P/N MG11353, which is rated at 180 amps but it costs around $379.99+ shipping. The
If you don't mind spending some time in a junk yard you could always make your self a 175mm "template" and walk around checking for fitment on various alternators. Anything over 175mm will work, you'll just have to make a spacer to account for the additional distance. I would check the various Nissan's the use the 2.4l and any version of the VGxx series engine since they all use a similar mount.
In my search for IsuzuGeek I stumbled across this page: http://www.maniacelectricmotors.com/hiouispeal.html
where they list a 180amp alternator for 92-95 Troopers and Rodeo/Amigos.
Here's a random link that will very useful if you decide to rebuild an alternator or use the kit that Tad listed. http://www.pirate4x4.com/tech/billavista/Wiring/Part2/