Audio/Video Electronics Wired up? If you have some sort of A/V modification let's hear about it here. Discussion of stock electrical problems should be done in the 'Lighting & Electrical' section.

HO Alternator install

  #1  
Old 09-26-2015, 09:47 PM
New Member
Thread Starter
Join Date: Sep 2015
Posts: 2
Bieszki95 is on a distinguished road
Default HO Alternator install

I plan on upgrading my stock alternator in my 04 blazer to a high output one. I've been shopping around on sites such as sonic electronix but how do I know what will fit? As far as system power, I dont know what I'm gonna be running. I just want a hefty alternator. Any help would be much appreciated.
 
  #2  
Old 09-27-2015, 10:37 AM
altoncustomtech's Avatar
Senior Member
Join Date: Oct 2010
Location: Monroe City, IN
Posts: 932
altoncustomtech will become famous soon enough
Default

Originally Posted by Bieszki95 View Post
I plan on upgrading my stock alternator in my 04 blazer to a high output one. I've been shopping around on sites such as sonic electronix but how do I know what will fit? As far as system power, I dont know what I'm gonna be running. I just want a hefty alternator. Any help would be much appreciated.
The AD244 case alternators will fit. I would highly recommend either DC Power Inc. or Singer alternators for an HO alt. The 250A Singer in my Jimmy does a fantastic job and is the closest thing I would consider to a budget option. The DC Power XP series 250A in my van is the best HO alt I've seen. Voltage on it is so rock solid with every accessory running, the headlights on and the Sundown SAZ-2000 running full tilt. That alt is a beast.

When it comes to high output alternators you really can't and don't want to cheap out. The "upgrades" they do to cheap alternators often make them worse than keeping your stock one. Output at idle is comprised to make high output at unrealistic engine RPM's or worse they can't even do that when they get hot. The high output Alta built by reputable companies will do the majority of their capable output at engine idle and can do at least the rated output when hot above idle.
 
  #3  
Old 09-27-2015, 10:48 AM
altoncustomtech's Avatar
Senior Member
Join Date: Oct 2010
Location: Monroe City, IN
Posts: 932
altoncustomtech will become famous soon enough
Default

If you're not going to be doing thousands of watts of power and a ton of current draw you could probably grab a stock AD244 alternator from a full size truck/suv and get plenty of output for most things. There are whole how to's out on the internet that tell you what vehicles to look in, part numbers and the like to do the upgrade really cheap. The only thing you have to change is the belt. If you do go with an aftermarket HO alt then you should also make sure to do the BIG 3 so the wiring can handle the increased output.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
95jimmy_slt
Lighting & Electrical
16
02-18-2014 06:28 PM
lionel2
2nd Gen S-series (1995-2005) Tech
1
06-29-2012 08:18 PM
ImScrewed92
Lighting & Electrical
19
09-13-2010 05:51 PM
ThisSideUp
Audio/Video Electronics
1
07-18-2005 04:51 PM
shawnCRX
1st Gen S-series (1983-1994) Tech
1
06-11-2005 03:47 PM


Thread Tools
Search this Thread
Quick Reply: HO Alternator install


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.