SKU: 22791943809

Cummins Internal Voltage Regulator

$81.90 $91.00
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Description

Cummins Internal Voltage RegulatorInternal voltage regulator to set your charging to a set 14. 2 volts. Basically turning your Cummins alternator into a one wire unit. Great for engine swaps or when your dodge factory computer based voltage regulator fails. Does not work with Bosch alternator!!! Fits Denso Alternator 1989 2002 The 2001 have plugin instead of 2 small posts, can use exact same diagram just instead of orange green wires going to alternators post, they must be connected

Internal voltage regulator to set your charging to a set 14.2 volts. Basically turning your Cummins alternator into a one wire unit. Great for engine swaps or when your dodge factory computer-based voltage regulator fails. Does not work with Bosch alternator!!! Fits Denso Alternator 1989-2002 The 2001 have plugin instead of 2 small posts, can use exact same diagram just instead of orange/green wires going to alternators post, they must be connected to 2 pins inside the alternators plug.

Tech Questions:
I bought the Cummins alternator one wire voltage regulator and it seems to only work half the time, half of the time it’ll regulate at that 14 V that it’s supposed to be at and the other half of the time it goes all the way up to 17 to 18 V. I wired it up based on the diagram I was sent. I’m not sure if it’s a wiring problem or it’s an actual problem with the regulator.
ANSWER or possible solution:
Make sure the wire from the truck to the orange wire off our regulator is good.  A poor or high resistance connection  will cause the symptom you describe. 
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Exchange/Return Notes
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SKU: 22791943809

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4.5 ★★★★★
Based on 188 reviews
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C
Verified Purchase
Carolyn Marie
Grantham, US
★★★★★ 5
Extended Warranty is worth it.
So glad I took out a three year warranty, my Shark Steam Mop stopped steaming. Asurion refunded me with Amazon credit. Thank you.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
C
Verified Purchase
Chayil
Carnegie, US
★★★★★ 4
Ease of handling
Initially when I filed the claim online, I was erroneously informed to contact the manufacturer because I was still under their warranty. I learned that I was not. It’s for this reason they got 4 stars instead of 5. I had to call and explain to Assurion. Once I did that they honored the extended warranty with no complications. I just had to return the defective device to them, they provided all prepaid UPS slip and I took it to UPS. They sent an Amazon gift card (via email) less than 48 hours after my UPS drop off. I enjoyed the ease of everything. Just make sure you call instead of handling the claim online. A person is always better.
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Reviewed in the United States on May 1, 2025
B
Verified Purchase
BJune
Belleville, US
★★★★★ 5
Great protection plan service
My vacuum stopped holding a full charge after a little over a year, so I submitted a claim to Asurion. They immediately emailed me back with a gift card to cover the cost of replacing the vacuum. I was able to find an even more expensive vacuum that was on sale, so I'm very pleased with Asurion's protection plan.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
M
Verified Purchase
MrAwsome1
Waukegan, US
★★★★★ 5
Worked great!
Got my refund in minutes!
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Reviewed in the United States on March 19, 2026
W
Verified Purchase
William Simonis
Boise, US
★★★★★ 5
Refunding/giftcards. Thank you
They were nice enough to replace my vacuum even though the battery was defective. They usually don't cover batteries. So it was a great. But they were nice enough to give me a gift card for the whole amount. Thanks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026

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