Alternator
- Dajiggs
- Club Member
- Posts: 9
- Joined: Thu Dec 10, 2009 7:49 am
Alternator
So I have a 2004 H1 with only 14k Miles and my alternator crapped out. I was wondering if anyone has heard of this happenning on such a new unit. Also, can anyone suggest the best way to go about finding parts. I'm gonna pull the thing out today and hopefully it'll give me a part# but do you think this could be a warranty issue if not with hummer than atleast with the manufacturer? I'd appreciate anyone's 2 cents on this
- Roy
- CHC Trail SuperGuide
- Posts: 1933
- Joined: Tue Dec 29, 2009 8:21 pm
- Location: Stratford,Ontario
Re: Alternator
[quote name='Dajiggs' timestamp='1295528989' post='24350']
So I have a 2004 H1 with only 14k Miles and my alternator crapped out. I was wondering if anyone has heard of this happenning on such a new unit. Also, can anyone suggest the best way to go about finding parts. I'm gonna pull the thing out today and hopefully it'll give me a part# but do you think this could be a warranty issue if not with hummer than atleast with the manufacturer? I'd appreciate anyone's 2 cents on this
[/quote]
Go to a automotive repair shop for starter/alternater. Let them repair the unit. Will /should cost less than a new.
Its a gm 173 -124amp alt $340 from the states AMG#6012512
Just think of anything electrical as a light bulb, they just go <img src='http://www.canadianhummerclub.com/forum ... unsure.gif' class='bbc_emoticon' alt=':unsure:' />
So I have a 2004 H1 with only 14k Miles and my alternator crapped out. I was wondering if anyone has heard of this happenning on such a new unit. Also, can anyone suggest the best way to go about finding parts. I'm gonna pull the thing out today and hopefully it'll give me a part# but do you think this could be a warranty issue if not with hummer than atleast with the manufacturer? I'd appreciate anyone's 2 cents on this
[/quote]
Go to a automotive repair shop for starter/alternater. Let them repair the unit. Will /should cost less than a new.
Its a gm 173 -124amp alt $340 from the states AMG#6012512
Just think of anything electrical as a light bulb, they just go <img src='http://www.canadianhummerclub.com/forum ... unsure.gif' class='bbc_emoticon' alt=':unsure:' />
99 Wagon
5.9 Cummins 12 valve mech. Stocking most parts to fix your H1
41.5-13.5 R16.5 Pitbull Rockers,
Auburn lockers front and rear
Full custom underbody protection
3" body lift
4" side rock tubes
12100 rear cv shafts
5.9 Cummins 12 valve mech. Stocking most parts to fix your H1

41.5-13.5 R16.5 Pitbull Rockers,
Auburn lockers front and rear
Full custom underbody protection
3" body lift
4" side rock tubes
12100 rear cv shafts
519-272-1761 
<p style="text-align:center;"> 
- Tom
- CHC Pilot
- Posts: 178
- Joined: Wed Nov 26, 2008 1:02 am
- Location: Kitchener, Ontario
Re: Alternator
It is out of a GM van with a 6.5L in it. Go to Napa with it and they will cross reference it. It's a standard ALT, and Napa will give you warranty on the rebuilt one.
[center]2003 HUMMER H1 SUMMIT SILVER WAGON
PREDATOR STAGE 4 | 40" Kevlar MT/R's | 2"Body Lift | 8 X HID's
AGR Rock Ram | Front/Rear Eaton's[/center]
PREDATOR STAGE 4 | 40" Kevlar MT/R's | 2"Body Lift | 8 X HID's
AGR Rock Ram | Front/Rear Eaton's[/center]
- dwaxman1
- CHC Trail Guide
- Posts: 957
- Joined: Wed Dec 09, 2009 6:20 pm
- Location: , Ontario
Re: Alternator
Markus replaced his lots of times... he knows the part# off by hand.. it was always from Napa
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- Hesh
- CHC Trail Guide
- Posts: 527
- Joined: Sun May 02, 2010 3:00 pm
- Location: Winnipeg
Re: Alternator
Im almost positive that if you are offroading the truck, that you'll want the proper replacement, and not the Van/cross-ref'd ones, as our alternators are sealed and protected way more than typical 'regular-market' 6.5 alternators were. If the truck is a pavement queen, then I wouldnt worry about it.
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- Roy
- CHC Trail SuperGuide
- Posts: 1933
- Joined: Tue Dec 29, 2009 8:21 pm
- Location: Stratford,Ontario
Re: Alternator
[quote name='Hesh' timestamp='1295572947' post='24365']
Im almost positive that if you are offroading the truck, that you'll want the proper replacement, and not the Van/cross-ref'd ones, as our alternators are sealed and protected way more than typical 'regular-market' 6.5 alternators were. If the truck is a pavement queen, then I wouldnt worry about it.
[/quote]
I do not believe the alt. is any different then the vans.Water levels for the civilian model is only 36" ,as for the humvee at the height of the air intake. A humvee alt cost a minor $2500 -200 amp.
Only real sealed unit is the starter.So if you do not do water crossings,you could down cost the starter to less then $500 compared to the original at $1200U$
Im almost positive that if you are offroading the truck, that you'll want the proper replacement, and not the Van/cross-ref'd ones, as our alternators are sealed and protected way more than typical 'regular-market' 6.5 alternators were. If the truck is a pavement queen, then I wouldnt worry about it.
[/quote]
I do not believe the alt. is any different then the vans.Water levels for the civilian model is only 36" ,as for the humvee at the height of the air intake. A humvee alt cost a minor $2500 -200 amp.
Only real sealed unit is the starter.So if you do not do water crossings,you could down cost the starter to less then $500 compared to the original at $1200U$
Last edited by Roy on Thu Jan 20, 2011 9:11 pm, edited 1 time in total.
99 Wagon
5.9 Cummins 12 valve mech. Stocking most parts to fix your H1
41.5-13.5 R16.5 Pitbull Rockers,
Auburn lockers front and rear
Full custom underbody protection
3" body lift
4" side rock tubes
12100 rear cv shafts
5.9 Cummins 12 valve mech. Stocking most parts to fix your H1

41.5-13.5 R16.5 Pitbull Rockers,
Auburn lockers front and rear
Full custom underbody protection
3" body lift
4" side rock tubes
12100 rear cv shafts
519-272-1761 
<p style="text-align:center;"> 
- Hesh
- CHC Trail Guide
- Posts: 527
- Joined: Sun May 02, 2010 3:00 pm
- Location: Winnipeg
Re: Alternator
My bad, youre absolutely right. One of those weeks where Friday cant come soon enough, cuz I feel like this -> <img src='http://www.canadianhummerclub.com/forum ... adbang.gif' class='bbc_emoticon' alt=':headbang:' />
Thanks for the correction Roy <img src='http://www.canadianhummerclub.com/forum ... ght_on.gif' class='bbc_emoticon' alt=':right_on:' />
Thanks for the correction Roy <img src='http://www.canadianhummerclub.com/forum ... ght_on.gif' class='bbc_emoticon' alt=':right_on:' />
[center]November '10 CHC ROTM Winner!!![/center]
- Roy
- CHC Trail SuperGuide
- Posts: 1933
- Joined: Tue Dec 29, 2009 8:21 pm
- Location: Stratford,Ontario
Re: Alternator
[quote name='Hesh' timestamp='1295575587' post='24368']
My bad, youre absolutely right. One of those weeks where Friday cant come soon enough, cuz I feel like this -> <img src='http://www.canadianhummerclub.com/forum ... adbang.gif' class='bbc_emoticon' alt=':headbang:' />
Thanks for the correction Roy <img src='http://www.canadianhummerclub.com/forum ... ght_on.gif' class='bbc_emoticon' alt=':right_on:' />
[/quote]
You must be sitting on the computer, fast reply!!
My bad, youre absolutely right. One of those weeks where Friday cant come soon enough, cuz I feel like this -> <img src='http://www.canadianhummerclub.com/forum ... adbang.gif' class='bbc_emoticon' alt=':headbang:' />
Thanks for the correction Roy <img src='http://www.canadianhummerclub.com/forum ... ght_on.gif' class='bbc_emoticon' alt=':right_on:' />
[/quote]
You must be sitting on the computer, fast reply!!
99 Wagon
5.9 Cummins 12 valve mech. Stocking most parts to fix your H1
41.5-13.5 R16.5 Pitbull Rockers,
Auburn lockers front and rear
Full custom underbody protection
3" body lift
4" side rock tubes
12100 rear cv shafts
5.9 Cummins 12 valve mech. Stocking most parts to fix your H1

41.5-13.5 R16.5 Pitbull Rockers,
Auburn lockers front and rear
Full custom underbody protection
3" body lift
4" side rock tubes
12100 rear cv shafts
519-272-1761 
<p style="text-align:center;"> 
- Hesh
- CHC Trail Guide
- Posts: 527
- Joined: Sun May 02, 2010 3:00 pm
- Location: Winnipeg
Re: Alternator
... hence why it is 'one of those weeks' lol
<img src='http://www.canadianhummerclub.com/forum ... feSpit.gif' class='bbc_emoticon' alt=':coffeespit:' />
<img src='http://www.canadianhummerclub.com/forum ... feSpit.gif' class='bbc_emoticon' alt=':coffeespit:' />
[center]November '10 CHC ROTM Winner!!![/center]
- Kurt
- Club Member
- Posts: 47
- Joined: Sat Jul 17, 2010 1:08 pm
- Location: Vancouver BC
Re: Alternator
I never had luck with the generic/reman/napa units.
Make sure you take the alternator with you if you get a non OEM/GM/AC Delco unit.
The cross references may have the wrong type of case, or the case may not be clockable to the right position to fit on an H1/6.5 GM bracket, or the bolt may be the wrong size, or the pully may be incorrect for our application.
If budget is a concern, take your hummer to a alternator repair/rebuild shop and get them to rebuild the internals but keep the pully/fan and case. This will run about $75 or so and you have a guaranteed fit.
After dealing with remans/napa stuff that .. on paper said it was a cross reference, there was always some issue I was bumping into.
I wound up getting a AC Delco unit from a Hummer dealer, it was the part from a 1999 diesel GM Savana G-Van. It ran around $350 retail but the shop gave it to me at minimal wholesale with a small markup of around $250-260.
Dropped it in, no issues since.
If I find the AC Deloc part number I'll post it, you may be able to get it from rockauto.com or an online oem parts website for a good price for a new unit [~250]
Make sure you take the alternator with you if you get a non OEM/GM/AC Delco unit.
The cross references may have the wrong type of case, or the case may not be clockable to the right position to fit on an H1/6.5 GM bracket, or the bolt may be the wrong size, or the pully may be incorrect for our application.
If budget is a concern, take your hummer to a alternator repair/rebuild shop and get them to rebuild the internals but keep the pully/fan and case. This will run about $75 or so and you have a guaranteed fit.
After dealing with remans/napa stuff that .. on paper said it was a cross reference, there was always some issue I was bumping into.
I wound up getting a AC Delco unit from a Hummer dealer, it was the part from a 1999 diesel GM Savana G-Van. It ran around $350 retail but the shop gave it to me at minimal wholesale with a small markup of around $250-260.
Dropped it in, no issues since.
If I find the AC Deloc part number I'll post it, you may be able to get it from rockauto.com or an online oem parts website for a good price for a new unit [~250]
Last edited by Kurt on Thu Jan 27, 2011 1:51 pm, edited 1 time in total.
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1998 Hummer HMCO 6.5 Turbo Diesel Tan & Black / Cepek Shock Kit / Eaton E-locker Front and Rear / Rhino Tire Carrier / 37" MTR w/ Uparmored HMMWV Wheels / HummerDan's Rocker panel protection and sliders
1998 Hummer HMCO 6.5 Turbo Diesel Tan & Black / Cepek Shock Kit / Eaton E-locker Front and Rear / Rhino Tire Carrier / 37" MTR w/ Uparmored HMMWV Wheels / HummerDan's Rocker panel protection and sliders