Powermaster Alternator V-Belt Pulley 55-75 Amp 1965-1973

Powermaster: 7078
MSRP: $156.13
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Powermaster Alternator V-Belt Pulley 55-75 Amp 1965-1973
Powermaster Alternator V-Belt Pulley 55-75 Amp 1965-1973 Powermaster Alternator V-Belt Pulley 55-75 Amp 1965-1973 Powermaster Alternator V-Belt Pulley 55-75 Amp 1965-1973 Powermaster Alternator V-Belt Pulley 55-75 Amp 1965-1973

Product Description

Powermaster 55-75 Amp Alternator with a V-Belt Pulley for 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972 and 1973 Mustangs.

Get your 1965-1973 Mustang's charging system back on track with this new stock style alternator. Not everyone wants to install an expensive upgraded one wire alternator so Powermaster offers this brand new factory style alternator.

This is NOT a remanufactured alternator but a brand new standard replacement for your original single pulley alternator. The alternator is externally regulated and provides 55 amps at idle, 65 amps while cruising and 75 amps at the top end making this a great alternator for your stock Mustang. The 1G style alternator case is a direct bolt-in and keeps your Mustang looking factory stock. A single v-belt pulley is included and installed making installation simple and fast.

- 55-75 Amp output
- Single V-belt pulley
- 1G style alternator case
- Externally regulated
- Pulley included
- Natural finish

Replace the alternator in your classic Mustang while retaining its original look with help from Powermaster. With an OEM finish and a factory style case, this alternator fits and looks like it came from the factory. Wiring hookups are the same as the original alternator hookups as well providing you with a pain-free installation.

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Installation Instructions


Difficulty: Moderate

Mustang Applications

This product will fit the following Mustang years:

Product Reviews

Write a review
Powermaster Alternator V-Belt Pulley 55-75 Amp 1965-1973 is rated 4.0 out of 5 by 4.
Rated 5 out of 5 by from Buy This! I couldn't not for the life of me get my ALT light to go out on my 289 w/lamps and I had a "new" Duralast alternator from Autozone, new wiring harness, new alt harness, new voltage regulator, grounding strap, etc. The ALT light would still stay on. So I decided to buy this on recommendation and BOOM! the ALT light went out. DO NOT trust those cr***y Duralast rebuilt alternators from Autozone. They only fix what is tagged as broke. This is a brand new built alternator and it works FLAWLESSLY! I honestly wish I could give it 6 stars.
Date published: 2015-01-26
Rated 5 out of 5 by from Nice update! Great finish, casting and cadmium plating. Fits perfectly and includes all hardware. The nicest part is the relocated BAT, FLD and STA to the top of the alternator, making it much easier to test with a multimeter for proper functionality. A quality product. Pair it up with a new solid state voltage regulator for perfect charging.
Date published: 2015-06-02
Rated 1 out of 5 by from Not the correct pulley This alternator is advertised as a direct replacement of the original. That is not factual. Yes, a V belt will fit on the pulley but the pulley is not wide enough. With a load the belt will slip. Look closely at the pulley in the picture and you will see that it doesn't look like the stock pulley. You can swap the old pulley if you choose. That is sometime a difficult task if you have an older alternator.
Date published: 2017-01-06
Rated 5 out of 5 by from Good fit and finish I considered buying a 2nd or 3rd Gen. one-wire alternator, but got this 3-wire original type alternator. I was having a low voltage problem when I used headlamps and car was in Drive and stopped (e.g., at stoplight) and decided to replace the old re-built alt. I have a 1965 with standard accessories, e.g., A/C, power steering, automatic transmission, and saw no reason the original type alt wouldn't produce sufficient voltage. Another factor was that the 2nd and 3rd Gen. alt's are not compatible with the 1965's "ALT" dummy light on instrument panel. (Supposedly there's a way to work around this, but I never found a clear source explaining how to do so.) I have a separate Bosch voltmeter, which I highly recommend installing on a 1965 if you want to do any troubleshooting with charging issues. A tachometer is also almost essential for that purpose. (BTW, Bosch also sells a chrome "retro-style" tachometer which is easy to install and matches the style of the 1965 instrument panel -- for power just be sure to tap the wire from the tach into the red-green wire from the "ON" blade of the Ign.-switch, someplace in the six or so inches before the red-green wire plugs into the Pink resistor wire that goes to the firewall. The tach signal wire connects to the (-) post of the Ign. Coil. The tach light wire can go to the original blue-red wire three-hole plug connector hanging under the dash near the Ign.-switch; or you can plug or tap into an ACCY plug or wire from fuse box. I also painted the chrome back case flat-black to match my dash color.) After installing this 1st Gen. Powermaster (which was easy 1 hour job), replacing voltage regulator with an electronic type, and re-setting the distributor timing, I've (so far) not had a problem with low voltage. I suspect timing was biggest problem, but it was time for a new alt anyhow. I also purchased the separate wiring alt harness, which made install easy and new looking.
Date published: 2015-12-02
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Product Questions

I was driving 80km/hr when i heard high pitch screeching sound. is it the alternator? car won't start now. but it turns

Asked by: bill 73
Its possible, it could be something else, you may have to remove the belt and check that all the pulleys spin freely except the crankshaft pulley.
Answered by: rk cjpp
Date published: 2017-08-30

What is the correct V belt for this pulley? Do I need an original type V belt? I have a 200ci 6 cylinder 1965 Mustang.

Asked by: DanJ
The original type of v belt will work.
Answered by: rk cjpp
Date published: 2016-11-14

Does this fit a straight six cylinder?

Asked by: Pudge44
Yes it will, you may have to reclock it if the wiring doesn't line up correctly.
Answered by: rk cjpp
Date published: 2016-10-28

I have a '66 Mustang with a 6 cyl. Will the ALT1 work, okay?

Asked by: Punk
Answered by: CJPP Dave
Date published: 2017-05-13

Do I/should I need to upgrade any wiring if I install this alternator to my stock 1966 Mustang?

Asked by: 66nag
If the alternator wiring is original it should be replaced with an original style harness since it is probably brittle.
Answered by: rk cjpp
Date published: 2016-09-08

Does this altenater have a autolite stamp on the top of it?

Asked by: Marvin Gentz
Answered by: CJPP Dave
Date published: 2016-07-05

Which external voltage regulator would work best for this model please ? Thanks Jonathan

Asked by: Jonbor
Browse our selection here: http://www.cjponyparts.com/mustang-voltage-regulators/c/60060168/
Answered by: CJ Pony Parts
Date published: 2017-06-27

What  is the warranty on the alternator?

Asked by: Lawrence in
Visit the Powermaster warranty page for more info on their product warranty: http://www.powermastermotorsports.com/warranty_information.html
Answered by: CJ Pony Parts
Date published: 2015-08-24
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