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Proform 100 AMP AlternatoráChrome Finish,1-Wire; GM 10 SI; w/Int Reg, V-Pully, & Ext.Fan

(30 reviews)
Part # 66445.1N
90 day replacement if defective
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Product Information

Product Details
Part No. 66445.1N
Warranty Details (90 DAY REPLACEMENT IF DEFECTIVE)
Can you tell the difference? Most chrome alternators look nearly the same, and that's why what's on the inside is so critical. Reliability starts with how it's made. Choosing PROFORM means choosing alternators with components produced by highly specialized machines, assembled by highly trained personnel using dedicated jigs and equipment, with everything 100% new for maximum longevity and optimum performance. After assembly each alternator is individually tested at the factory. Finally, it's boxed with a quality assurance graph that documents the specific unit's output performance. We do the testing, not you! And PROFORM proves it!

Product Features:
  • GM 10si 1-Wire Style Alternator
  • Lustrous Chrome Finish
  • Steel with Chrome Finish
  • No Logo
  • Fits Various GM V8 Engines (See Applications)
  • Internal Regulator
  • 100 AMP, 2.5" V-Belt Pulley, 6.61" Mounting Center
  • 100% New Components; Not Re-man or Refurbished
  • 1-Wire Hook-up for Easy Installation
  • Includes Machined Pulley
  • PROFORM Parts Brand Product
Specifications
Alternator Case Type:
GM 10SI

Alternator Finish:
Chrome

Amperage Rating:
100 A

External Fan Included:
Yes

One Wire Capable:
Yes

Pulley Grooves:
1

Pulley Included:
Yes

Pulley Type:
V-Belt

Regulator Included:
Yes

Regulator Type:
Internal

Voltage:
12 v
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3.7 out of 5
30 Customer Reviews
43% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
17
4 Stars
3
3 Stars
1
2 Stars
2
1 Star
7
Pros
3
Easy To Use
1
High-Performance
1
Versatile
Cons
23
No
1
None
1
Chrome Peeled Off
1
Siezed Up
Most Liked Positive Review
I would recommend to others
1937 Chevrolet Master Deluxe street rod equipped with two radiator fan, ac, halogen lights, 400 watt stereo, etc. - Replace a 65 amp alternator that was struggling to keep up with the demand and replaced it with the new ProForm chrome 100 amp. Easy installation, wiring and works great with no effort. I would purchase again.
Most Liked Negative Review
Only lasted a little over a year
First ProForm alternator wouldn't charge so ordered a replacement. Had to pay for the second alternator then get a refund on the first one after paying for both. Had a difficult time getting this alternator to fit my Suzuki Samurai and after a little over a year it siezed, chrome peeled off and was no good. I had to go back to the stock alternator even though I need more power to lift my snow plow. When the alternator siezed up it caused my fan to quit turning and my motor to over heat and blow a head gasket. Very poorly made alternator.
Reviewed by 30 Customers
I would recommend to others
Verified Buyer -
1937 Chevrolet Master Deluxe street rod equipped with two radiator fan, ac, halogen lights, 400 watt stereo, etc. - Replace a 65 amp alternator that was struggling to keep up with the demand and replaced it with the new ProForm chrome 100 amp. Easy installation, wiring and works great with no effort. I would purchase again.
Bottom Line Yes, I would recommend to a friend
Great product.
Verified Buyer -
Easy install.Great quality for the price.Going to buy another for my other car.
Bottom Line Yes, I would recommend to a friend
I would buy this product again
Verified Buyer -
installed on 1960 tractor, worked great!
Bottom Line No, I would not recommend to a friend
Only lasted a little over a year
First ProForm alternator wouldn't charge so ordered a replacement. Had to pay for the second alternator then get a refund on the first one after paying for both. Had a difficult time getting this alternator to fit my Suzuki Samurai and after a little over a year it siezed, chrome peeled off and was no good. I had to go back to the stock alternator even though I need more power to lift my snow plow. When the alternator siezed up it caused my fan to quit turning and my motor to over heat and blow a head gasket. Very poorly made alternator.
Bottom Line No, I would not recommend to a friend
Works Great
Verified Buyer -
The alternator almost installed itself. It appears to be working great.Now I don't have to push my dump truck to get it started!
Bottom Line Yes, I would recommend to a friend
Displaying Reviews 1 - 5Back to Top
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