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Product Information

Product Details
Part No. 7861-7AN
Warranty Details (LIMITED LIFETIME REPLACEMENT)
Carquest Professional alternators are 100% new units that are built to meet or exceed original equipment (O.E.) specifications. Our new alternators are engineered and built by an IATF/TS 16949 certified supplier that meets the highest standards achievable. Carquest Professional alternators are re-engineered to include improvements and enhancements (where applicable) to the OE design to extend longevity and service life. Our new alternators are built with all new components and are 100% triple tested to ensure high quality that is backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Manufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • All new components are utilized to ensure long service life
  • Housings are 100% new with dimensions computer gauged and measured to ensure proper fitment
  • Internal electronics are upgraded for heavy duty reliability (where applicable)
  • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
  • Application-specific technical bulletins included where applicable
  • All units are 100% triple tested to ensure quality and performance
  • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
  • Rotors and stators are load tested and double insulated for maximum charging performance
Specifications
Amperage Rating:
100.0 A

Decoupled Or Clutch Pulley:
No

Family:
Delco

Fan Type:
External

Plug Clock Rear View Main Mounting Ear at 6 O Clock:
7

Pulley Belt Type:
Serpentine

Pulley Groove Quantity:
6

Pulley Included:
Yes

Regulator Type:
Internal

Rotation Direction:
Clockwise (Right)

Voltage:
12.0 VDC

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4.55 out of 5
47 Customer Reviews
88% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
35
4 Stars
8
3 Stars
1
2 Stars
1
1 Star
2
I'd recommend this alternator..
Pros
2
Durable
2
Easy To Install
1
Junk
1
Internet discount sealed the deal
Cons
1
No Improvement In Performance
Best Uses
2
Everyday Driving
2
Replacement
1
Performance Driving
1
Restoration
1
JUNK
Car & Truck
1
Casual Driver
Describe Yourself
2
Truck Enthusiast
1
Casual Driver
Most Liked Positive Review
Greatest of ease.
Replaced the one in my Truck do to the bearings making noise. Not one to run it till it fails for it would take out the belt and anything in it's way could get damage. Remove the belt, 3 bolts unplug the wire unscrew the nut and the alternator is off. Reverse to put back on. From start to finish takes about 10 mins as long as you have the right tools. Works like a Charm and no bearing grind and I am safe to go where I have no fear of being stranded by the failure of such a Great Part. Buy with Confidence.
Most Liked Negative Review
Whines like crazy.
This was a warranty replacement for one I bought back in late 2019. The original one whined even at an idle with no substantial load on the charging system. This one is much quieter. I finally replaced it after the voltage started jumping around.
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Displaying Reviews 1 - 5Back to Top

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I have a 94 gmc 1500 p/u 4wd with a duralast gold altenater dlg1345611. When I look this up lt said not compatible with my gmc which is all power. I want to replace it with a carquest. What amp and part number do I need?
Verified Reply - Solomon
Hi Irmie, glad to assist you! The exact fit Carquest alternator for your 1994 GMC G1500 is CARQUEST Alternator - Remanufactured - 100 Amps (Part No. 7861-3A). Please enter your vehicle on our website and search for this part to check the fitment.
WHAT YEAR AND MODEL IS THE ALTERNATOR FOR
Verified Reply - Steve
Hi Becky, glad to assist you! As this part 7861-7AN fits various makes and models, to check the exact fit application, please provide us with the year, make, model and engine size of your vehicle.
is all the internal parts new if not what parts are new
Verified Reply - Vincent
Hi Charlie, great question! I researched and found that this alternator features brand-new components and cutting-edge design. Many internal components have engineered enhancements and improvements to the original/OE design and capability Mounting surfaces/points are 100% new with gauged and measured dimensions.

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