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AC Delco Voltage Regulators

Keep your car's devices working by getting a reliable AC Delco voltage regulator. Luckily, CarParts.com is the best place to buy AC Delco products at prices that won’t break the bank. We have many AC Delco voltage regulators that guarantee safety and durability, so you can comfortably use all of your car’s electrical devices. Take a look at our AC Delco voltage regulators now and place your order today!
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C635 Professional Series Voltage Regulator - Direct Fit, Sold individually
AC Delco®
C635 Professional Series Voltage Regulator - Direct Fit, Sold individually
Part Number: ACC635
Vehicle Info Required to Guarantee Fit
$65.49
Product Details
Notes : Internal regulatorWarranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Professional SeriesReplaces OE Number : 89058245Recommended Use : OE ReplacementProduct Fit : Direct Fit
C645 Professional Series Voltage Regulator - Direct Fit, Sold individually
AC Delco®
C645 Professional Series Voltage Regulator - Direct Fit, Sold individually
Part Number: ACC645
Vehicle Info Required to Guarantee Fit
$95.49
Product Details
Warranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Professional SeriesRecommended Use : OE ReplacementProduct Fit : Direct Fit
D636A GM Original Equipment Series Voltage Regulator - Direct Fit, Sold individually
AC Delco®
D636A GM Original Equipment Series Voltage Regulator - Direct Fit, Sold individually
Part Number: ACD636A
Vehicle Info Required to Guarantee Fit
$37.99
Product Details
Warranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : GM Original Equipment SeriesRecommended Use : OE ReplacementProduct Fit : Direct Fit
F662 Professional Series Voltage Regulator - Direct Fit, Sold individually
AC Delco®
F662 Professional Series Voltage Regulator - Direct Fit, Sold individually
Part Number: ACF662
Vehicle Info Required to Guarantee Fit
$32.49
Product Details
Warranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Professional SeriesReplaces OE Number : 19106583Recommended Use : OE ReplacementProduct Fit : Direct Fit
D680 GM Original Equipment Series Voltage Regulator - Direct Fit, Sold individually
AC Delco®
D680 GM Original Equipment Series Voltage Regulator - Direct Fit, Sold individually
Part Number: ACD680
Vehicle Info Required to Guarantee Fit
$20.99
Product Details
Warranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : GM Original Equipment SeriesRecommended Use : OE ReplacementProduct Fit : Direct Fit
13582947 GM Original Equipment Series Voltage Regulator - Direct Fit, Sold individually
AC Delco®
13582947 GM Original Equipment Series Voltage Regulator - Direct Fit, Sold individually
Part Number: AC13582947
Vehicle Info Required to Guarantee Fit
$54.49
Product Details
Warranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : GM Original Equipment SeriesRecommended Use : OE ReplacementProduct Fit : Direct Fit
93744561 GM Original Equipment Series Voltage Regulator - Direct Fit, Sold individually
AC Delco®
93744561 GM Original Equipment Series Voltage Regulator - Direct Fit, Sold individually
Part Number: AC93744561
Vehicle Info Required to Guarantee Fit
$118.99
Product Details
Warranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : GM Original Equipment SeriesRecommended Use : OE ReplacementProduct Fit : Direct Fit
C603Z Professional Series Voltage Regulator - Direct Fit, Sold individually
AC Delco®
C603Z Professional Series Voltage Regulator - Direct Fit, Sold individually
Part Number: ACC603Z
Vehicle Info Required to Guarantee Fit
$69.99
Product Details
Notes : With transistorized regulator; External regulatorWarranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Professional SeriesRecommended Use : OE ReplacementProduct Fit : Direct Fit
D618 GM Original Equipment Series Voltage Regulator - Direct Fit, Sold individually
AC Delco®
D618 GM Original Equipment Series Voltage Regulator - Direct Fit, Sold individually
Part Number: ACD618
Vehicle Info Required to Guarantee Fit
$67.99
Product Details
Warranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : GM Original Equipment SeriesRecommended Use : OE ReplacementProduct Fit : Direct Fit
D663 Professional Series Voltage Regulator - Direct Fit, 12 Volts, Sold individually
AC Delco®
D663 Professional Series Voltage Regulator - Direct Fit, 12 Volts, Sold individually
Part Number: ACD663
Vehicle Info Required to Guarantee Fit
$62.49
Product Details
Notes : Bolt On Mounting Position; Includes Mounting BracketWarranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Professional SeriesVoltage : 12 VoltsRecommended Use : OE ReplacementProduct Fit : Direct Fit
Page 1 of 1 | Showing 1 - 10 of 10 results

Top Rated Products

AC Delco D618 GM Original Equipment Series Voltage Regulator - Direct Fit, Sold individually
$67.99( Review)
It's just what I expected and needed to repair my 62 Chevy SS!
Nancy L.
VERIFIED PURCHASER
AC Delco D663 Professional Series Voltage Regulator - Direct Fit, 12 Volts, Sold individually
$62.49( Review)
Received sooner than expected. Part fit perfectly. Solved the problem. Great provideSee More
Bob S.
VERIFIED PURCHASER
AC Delco C635 Professional Series Voltage Regulator - Direct Fit, Sold individually
$65.49( Review)
This item is a perfect fit and works perfectly. Just as the General intended when my See More
Robert B.
VERIFIED PURCHASER

Product Questions & Answers

AC Delco C603Z Professional Series Voltage Regulator - Direct Fit, Sold individually
$69.99
Q:what amp is this regulator?
John M.
A:BEST ANSWERHi John, thank you for reaching out. The ampere of this voltage regulator isn't readily available from the manufacturer. The specifications of this part are similar to the original part. The fitment selection is guaranteed by simply entering the complete vehicle information. You can use this link to go back to the item page and continue the order: https://www.carparts.com/voltage-regulator/ac-delco/acc603z?can=CPAP3648_20220417 I hope this helps. Happy shopping. Show less
Aldrin P.
 
1 Question, 1 AnswerView all Q&As >
AC Delco D663 Professional Series Voltage Regulator - Direct Fit, 12 Volts, Sold individually
$62.49
Q:I just replaced my voltage regulator on my 1966 corvette. Is it supposed to feel warmth when the car is not running? Show Less
66 vette
A:BEST ANSWERHello! It should not warm up until it is in use. It will stay warm for a while after you turn off the car due to heat soak of the engine, but it should not stay warm. Show less
Mitchell D.
 
4 Questions, 1 AnswerView all Q&As >

Helpful Automotive Resources

Where is the Voltage Regulator Located on an Alternator?
Where is the Voltage Regulator Located on an Alternator?The voltage regulator is the part of the charging system responsible for regulating the current in the alternator field (the spinning rotor driven by the pulley). It keeps track of system voltage and regulates the alternator field current to maintain a target voltage of about 14.5 volts. .u7c3dc9c37fd0faf25b05906501b9df1e { padding:0px;
Why Is My Battery Light On?
Why Is My Battery Light On?The battery light can be working properly yet you can still have a bad alternator, so the battery light only indicates total failure.– Richard McCuistian, ASE Certified Master Automobile Technician
P2503 Code: Charging System Voltage Low
P2503 Code: Charging System Voltage LowThe charging system relies on the alternator, which generates alternating current (AC) and converts it to direct current (DC). Modern automobiles operate on a 12-volt direct current electrical system. A voltage regulator regulates the charging voltage produced by the alternator, keeping it between a specific voltage range to protect the