Alternator Replacement

[Greg Saldaña]

Hey everyone, I was wondering what alternator I should get for my k5. I have an aftermarket radio, 7 speakers, and an amp. It's also the Silverado package so electric windows and back glass, It is a 1986 k5 Blazer, and I can't just go to a parts store because I do not live in the US. Any links would be appreciated.

 

[Bent77]

Aah. Best answer may come from @500$k5 when he gets back on here in the morning

 

[Cucv_M1008]

I like power master stuff but I don't know if it's enough for your set up.

 

[Wes Harden]

1st thing you should do is add a larger size wire from the batt + on alt to junction block on firewall. You should be able to find 100+ amp cs130 alt in Panama, they came on 1988-1999 trucks. switch the pulley with your alt. you will need to modify the small 2 wire plug to fit or buy/make an adapter(Ac Delco pt2145). You also may need to clock, or change the orientation of the back half to the front half to get the wiring, esp the batt wire to clear the engine and valve cover.

@500$k5 owns an auto electric shop, he built me a nice CS130 with heavy duty bearings, clocked for a gen 1 chevy and make 140 amps. The cs130 charge better at lower rpm than the factory 10si

also the cs144 is another option mid 90's GM vehicles came with them and many were 140 amps.

 

[Greg Saldaña]

1st thing you should do is add a larger size wire from the batt + on alt to junction block on firewall. You should be able to find 100+ amp cs130 alt in Panama, they came on 1988-1999 trucks. switch the pulley with your alt. you will need to modify the small 2 wire plug to fit or buy/make an adapter(Ac Delco pt2145). You also may need to clock, or change the orientation of the back half to the front half to get the wiring, esp the batt wire to clear the engine and valve cover.

@500$k5 owns an auto electric shop, he built me a nice CS130 with heavy duty bearings, clocked for a gen 1 chevy and make 140 amps. The cs130 charge better at lower rpm than the factory 10si

also the cs144 is another option mid 90's GM vehicles came with them and many were 140 amps.

Okay sounds good! Thank you for the advice will totally be looking into that

 

[sweetk30]

I have been using this one for close to 20 years or so and zero problems . . . They were cheeper way back then . But looks like they are still going strong .

90-95 NEW CHEVROLET TAHOE GMC YUKON SUBURBAN HIGH OUTPUT ALTERNATOR 200 AMPS | eBay

1995-90 C&K Pickup,Suburban,Tahoe,Yukon G Series Van,Sierra,Sonoma,Bravada. IF YOU CURRENTLY HAVE THE 105 AMP UNIT IN PLACE, THIS UNIT WILL REPLACE THE SMALLER ORIGINAL ALTERNATOR. BOLTS IN PLUG AND PLAY.

www.ebay.com

 

[Wes Harden]

I have been using this one for close to 20 years or so and zero problems . . . They were cheeper way back then . But looks like they are still going strong .

90-95 NEW CHEVROLET TAHOE GMC YUKON SUBURBAN HIGH OUTPUT ALTERNATOR 200 AMPS | eBay

1995-90 C&K Pickup,Suburban,Tahoe,Yukon G Series Van,Sierra,Sonoma,Bravada. IF YOU CURRENTLY HAVE THE 105 AMP UNIT IN PLACE, THIS UNIT WILL REPLACE THE SMALLER ORIGINAL ALTERNATOR. BOLTS IN PLUG AND PLAY.

www.ebay.com

what brackets are you using for that alt. It does not have the 12 and 6 o'clock mounting

 

[sweetk30]

Bolts in to the 90-95 serp belt brackets in place of the cs-130 . Its a modded cs-144 .

Go check there listings they prob have what you want .

 

[Wes Harden]

the cs144 does come with 12 and 6 mounting. I think it was in some car lines that way.

 

[Barrman]

Getting away from the Delco si type alternator means a plug change. I went from a si Delco to a cs-130 to an AD244. Here is a video showing the differences and what is needed:

 

[500$k5]

the cs144 does come with 12 and 6 mounting. I think it was in some car lines that way.

CS130's off of the 454's had the 12 and 6 oclock mounts.

 

[anwat]

I have been using this one for close to 20 years or so and zero problems . . . They were cheeper way back then . But looks like they are still going strong .

https://www.ebay.com/itm/130256557908[/URL

This is what I got about 6 years ago, and it's still going strong. I have an electric winch, plus a lot of other high draw items and I'm still running the same two batteries that were there when I put the alternator in. I would upgrade your wires as @wesharden recommended, but I can vouch for this alternator, it does get hot, but it never fails to keep everything running and charged.[/url]