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}Need Help? Call Us1-866-529-0412
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Vehicle Info Required to Guarantee FitAdd Vehicle
AC Delco® D663 Professional Series Voltage Regulator - Direct Fit, 12 Volts, Sold individually
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$62.99
$111.65Save: $48.66(44%)
Manufacturer #D663
Vehicle Info Required to Guarantee FitAdd Vehicle
Qty:
1
Highlights
Part:
Brand:
Notes:
Bolt On Mounting Position; Includes Mounting Bracket
Warranty:
24-months or unlimited mile AC Delco limited warranty
Quantity Sold:
Sold individually
Prop 65 Warning:
WARNING: 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.
Product Fit:
Direct Fit
Recommended Use:
OE Replacement
Series:
Professional Series
Voltage:
12 Volts
Vehicle Fitment Information
Vehicle Name
Submodel
Engine
Fitment Information
1966 Buick Electra
Base
8 Cyl 6.6L
Eng. Designation: MT, CARB, Naturally Aspirated, GAS
1966 Buick Electra
Custom
8 Cyl 6.6L
Eng. Designation: MV, CARB, Naturally Aspirated, GAS
1966 Buick Riviera
Gran Sport
8 Cyl 7.0L
Eng. Designation: MZ, CARB, Naturally Aspirated, GAS
1966 Buick Sportwagon
Custom
8 Cyl 5.6L
Eng. Designation: MB, CARB, Naturally Aspirated, GAS
1966 Buick Wildcat
Base
8 Cyl 6.6L
Eng. Designation: MV, CARB, Naturally Aspirated, GAS
Page 1 of 161 | Showing 1 - 5 of 805 results
Product Information
ACDELCO OE REPLACEMENT VOLTAGE REGULATORS
The factory-original fit and lasting function of ACDelco’s OE replacement voltage regulators provide the perfect repair without breaking your budget. Established in 1899, ACDelco manufactures original GM parts and premium OE replacement parts for other brands in the automotive aftermarket.
- High-grade design delivers extended lifespan
- Carefully formed to suit your specific vehicle
- Engineered to exact OE standards
- Has undergone stringent evaluation to guarantee proper fit and performance
Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.
Product Q&A
0
I just replaced my voltage regulator on my 1966 corvette. Is it supposed to feel warmth when the car is not running?66 vetteMay 28, 2022
Best Answer:Hello! 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.
Mitchell D.STAFFMay 31, 20220
Will this voltage regulator work with a 70amp alternator?David D.Jun 27, 2024
Best Answer:Hi David, thanks for initiating contact. Yes, this is compatible with a 70-amp alternator. This voltage regulator is designed to monitor and maintain the proper voltage to a vehicle's critical electrical systems, including the starting and charging systems. If your vehicle information matches this product, click the link below for direct ordering to take advantage of our ongoing discount and limited stocks. Happy shopping!
<a href="https://www.carparts.com/voltage-regulator/ac-delco/acd663?can=CPGG4850_CSQA_20240627" target="_blank">https://www.carparts.com/voltage-regulator/ac-delco/acd663?can=CPGG4850_CSQA_20240627</a>
Grace G.STAFFJun 27, 20240
Is this for a 69 z28 with a 302 engine?Jim M.Aug 18, 2023
Best Answer:Hi Jim, I'm glad to assist you. No. it is incompatible. The correct and matching voltage regulator part number is C635. It is an AC Delco OEM brand with a 2-year warranty. Grab our discounted price and click the link below to buy it today. Happy shopping!
<a href="https://www.carparts.com/details/Chevrolet/Camaro/AC_Delco/Voltage_Regulator/1969/Z28/8_Cyl_4-dot-9L/ACC635.html?can=cpje1043_CSQA_20230818" target="_blank">https://www.carparts.com/details/Chevrolet/Camaro/AC_Delco/Voltage_Regulator/1969/Z28/8_Cyl_4-dot-9L/ACC635.html?can=cpje1043_CSQA_20230818</a>
Jeonino E.STAFFAug 18, 20230
i have a 55 amp alternator on my 1966 cadillac calais but this is for a 63 anp do you know ware i can get one for a 55 amp ?RYAN W.Sep 17, 2022
Best Answer:Hi Ryan, I'm glad to assist you. It will work fine with your current alternator. We do not carry any options with a 55-ampere voltage regulator. Grab our low-price offer and click the link below to order today. Happy shopping!
<a href="https://www.carparts.com/voltage-regulator/ac-delco/acd663?can=CPJE1043_CSQA_20220917" target="_blank">https://www.carparts.com/voltage-regulator/ac-delco/acd663?can=CPJE1043_CSQA_20220917</a>
Jeonino E.STAFFSep 17, 2022Customer Reviews
Professional Series Voltage Regulator - Direct Fit, 12 Volts, Sold Individually
Vo)tage regulator for 1970 Olds
Received sooner than expected. Part fit perfectly. Solved the problem. Great provider of parts
You can trust them with your car needs
Bob S.
VERIFIED PURCHASER
Purchased on Dec 02, 2023