Alternator Question

[CallmeMaybe]

What is the stock amp for the alternator? Autoparts stores say 61-100ish. They believe I have a 61amp but will the 100amp fit? It has a bigger casing.

 

1988 4.0L 4x4

[flint54]

Not sure about the 100 amp, but I can tell you with certainty that the 136 amp from a 99 WJ will require minor trimming to make fit.

[banshee]

mine is an 87 4.0L requires 105amp, O-reilly $100 give or take

[Pete M]

if you can, take your old one in with you to verify the mounting pattern.

[ncmountainMJ]

Not sure about the 100 amp, but I can tell you with certainty that the 136 amp from a 99 WJ will require minor trimming to make fit.

 

Sorry to hijack this post but can you give me more detail or a link to this upgrade?

[cruiser54]

It's a CS-130 Delco alternator. Local generator/starter shops can boost them up for you , too.

 

Don't forget the crappy and small cables your Jeep has. Many times addressing that makes a huge difference.

 

www.kelleyswip.com

[1987Comanche]

Non A/C, non HD cooling trucks got the 61 Amp, 4 3/4" case alternator. Adding either of these options gets you the 5 1/4" case alternator (105 amp I believe). The larger case alternator is a direct swap for the smaller one and it's cheaper too! You will, however, likely confuse the people at the parts store...

[mvusse]

Non A/C, non HD cooling trucks got the 61 Amp, 4 3/4" case alternator. Adding either of these options gets you the 5 1/4" case alternator (105 amp I believe). The larger case alternator is a direct swap for the smaller one and it's cheaper too! You will, however, likely confuse the people at the parts store...

 

When I bought my truck (no AC, no auxiliary fan or pigtail for one) it had the larger alternator and I would like to think it was original because the bolts all had then 21 years of corrosion. Every single one broke off before it let loose.

[velco]

Cold weather package includes the 105 amp alternator. Cool up here today -24C with a -33C wind chill.

[banshee]

upgrade from 2007 jeep Compass

with 2.0L Engine - 140 Amp

part number 31-01280 AR

 

OR

 

upgrade from 2004 Mercedes Benz C240

150 AMPS but slightly harder wiring

Part number 31-00096 AR

autoparts wherehouse.com