Chevrolet R20 Alternators and Starters

Essential Chevrolet R20 Alternators and Starters

Carquest – Starter Brush Set (Part No.X265)

Starter Brush Set

from

$6.29
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
  • BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product
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Mr. Gasket – Chrome Low Mount Alternator Bracket – Small Block Chevy – Dress Up Your Engine! (Part No.5179)

Chrome Low Mount Alternator Bracket - Small Block Chevy - Dress Up Your Engine!

from

$83.99
Mr. Gasket small block Chevy lower alternator mounting kit designed to work with a short water pump. Made of heavy gauge chrome plated steel. Complete with all necessary mounting hardware. Designed to relocate the alternator to the lower left side of the motor. This mounting bracket will make your engine compartment look neat and sanitary. Possible cross member interference on some applications.

Product Features:
  • Alternator Relocating Kit
  • Heavy Gauge Chrome Plated Steel
  • All Necessary Hardware Included
  • Helps To Give Engine Compartment A Clean Look
  • Designed To Work With Short Style Water Pump
  • Possible Cross Member Interference On Some App
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Carquest Premium – Ignition Lock Cylinder (Part No.CSA1384)

Ignition Lock Cylinder

from

$27.99
The Ignition switch is the main power switched distribution point in every vehicle. The ignition switch in some manner will be connected directly to the vehicle battery and then supply power out to every operating system in the vehicle that is required to be connected and disconnected from the vehicle’s battery or power source.

Product Features:
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the connector terminal design process ensures speed-to-market and a precise connector fit guaranteed.
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure confidence and product reliability, every time.
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Dorman – Help – Offset Starter Alignment Shim, (1) 1/64, (1) 3/64, (1) 1/16 In., GM (Part No.02350)

Offset Starter Alignment Shim, (1) 1/64, (1) 3/64, (1) 1/16 In., GM

from

$9.99
Our Starter Motor Shims are manufactured with a high corrosion resistance for long-lasting performance. The shims effectively space out the starter for proper alignment.

Product Features:
  • Conveniently available in various styles and in packs of different quantities
  • High quality steel construction
  • Shimming helps stop whining and/or grinding noises from the starter motor when due to improper alignment
  • Dorman’s Starter Motor Shims are constructed to strict engineering quality standards
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Carquest Premium – Alternator Rectifier Bridge (Part No.SCA1008)

Alternator Rectifier Bridge

from

$31.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.

Product Features:
  • Application matched components ensure the charging system can be returned to like new condition.
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Carquest Premium – Alternator Rectifier Bridge (Part No.SCA1021)

Alternator Rectifier Bridge

from

$68.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.

Product Features:
  • Application matched components ensure the charging system can be returned to like new condition.
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Carquest HD Electrical – Starter: New (Part No.72-6469N)

Starter: New

from

$283.99
Product Features:
  • Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
  • Premium grade solenoids contains materials specifically selected for best conductivity. High temperature cap ensures that the solenoid works flawlessly in high heat environments. High dielectric strength outer case resists shorting.
  • Armatures have precision machined and upgraded steel shaft for improved durability and performance.
  • Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
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Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.3508MS)

Starter: Remanufactured, Limited Lifetime Warranty

from

$98.99
Carquest Premium starters are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium starters are designed to meet or exceed OE specifications for fit, form and function. Our starters are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and needle bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance 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.
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Driveworks – Ball Bearing (Part No.SL-203-FF)

Ball Bearing

from

$13.49
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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National – Multi-Purpose Bearing (Part No.MNJ-471-S)

Multi-Purpose Bearing

from

$14.49
Product Features:
  • RIGHT TYPE: Needle bearings are application-specific for the repair occasion, using either caged or full complement designs
  • PREMIUM MATERIALS: Precision manufactured using high-quality materials for outstanding durability and performance
  • OE-STYLE DESIGN: Engineered to meet OE specifications
  • COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
  • RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on
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Carquest Premium – Multi-Use Connector (Part No.PTA1127)

Multi-Use Connector

from

$19.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:
  • Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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Carquest Professional – Alternator: New, 105 Amps, Limited Lifetime Warranty (Part No.7884-11AN)

Alternator: New, 105 Amps, Limited Lifetime Warranty

from

$162.99
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
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Bosch – Alternator: New, 105 Amps, Limited Lifetime Warranty (Part No.AL668N)

Alternator: New, 105 Amps, Limited Lifetime Warranty

from

$174.99
The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for demanding driving conditions. Engineered with 100% new components, it is built to endure the harshest environments, ensuring optimal functionality and an extended lifespan. Designed to handle excessive heat and high electrical demands, this alternator provides consistent power with a 105-amp rating and 12 VDC output. Its clockwise rotation and precisely gauged, resized, or rethreaded mounting points ensure a perfect fit for seamless installation. As an added benefit, every purchase includes free 24-hour Roadside Assistance Protection, offering peace of mind on the road. Choose Bosch for a durable, high-performance alternator that keeps your vehicle running smoothly.

Product Features:


    Product Features:
    • 100% new components withstand the harshest environments for the best performance and longest life
    • Built specifically to withstand excessive heat and high electrical demands.
    • All mounting points 100% gauged and resized or rethreaded for proper fit
    • Free 24-hour Roadside Assistance Protection with purchase of any Bosch Alternator
    • Engineered for consistent power delivery, the 105-amp rating ensures reliable performance under demanding electrical loads.
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Carquest Premium – Alternator Brush Holder (Part No.XAC1044)

Alternator Brush Holder

from

$14.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.

Product Features:
  • Application matched components ensure the charging system can be returned to like new condition.
See More

Carquest – Alternator Brush Set (Part No.X311)

Alternator Brush Set

from

$12.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
  • BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product
See More

Carquest – Starter Solenoid (Part No.84C1006)

Starter Solenoid

from

$33.99
The Starter Solenoid is the relay of the starting circuit that carries the high amperage required when the starter motor is engaged. The solenoid is typically energized by the starter switch when commanded by the vehicle operator. Starter solenoids may also be used in other high amperage circuits, compare solenoid specification to your circuit needs before installing.

Product Features:
  • Application matched component to ensure the system can be returned to like new condition.
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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Carquest Premium – Starter Solenoid (Part No.SBC3223)

Starter Solenoid

from

$43.99
The starting system consists of the rotating electrical motor and solenoid which may be mounted on the starter motor or mounted remotely. The electric motor drives a gear which engages with the engine’s flywheel located at the rear of the motor, when the motor is energized, the motor will turn the engines crankshaft. The starter solenoid is an electric relay, or switch used to provide power to the starter motor or any electrical device that requires high amperage to operate. A low amperage wire winding within the solenoid will create magnetic force when voltage is applies from a remote switch, such as the ignition switch or another type of remote mounted switch. The contacts within the relay carry a high amperage load to run an electric motor or some other type of high load circuit.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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Carquest Premium – New Voltage Regulator (Part No.RAA1056)

New Voltage Regulator

from

$24.99
CARQUEST Voltage Regulators are engineered and created by an automotive charging system manufacturer designed to meet or exceed OEM specifications.

Product Features:
  • CARQUEST Voltage Regulators are designed to match OE fit, form and function. Fitted with critical OEM electronic components results in longer life expectancy.
  • CARQUEST Voltage Regulators are mechanically designed with utilization of surface mount technology, robust mechanical housing, and consistent encapsulation to protect against moistures & vibration.
  • CARQUEST Voltage Regulators uses surface mount technology and uniform encapsulation to protect against moistures & vibration.
  • CARQUEST Voltage Regulators are 100% individually tested for all product functionalities that includes the proper voltage set-point, power capabilities, and other product specifications.
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Carquest Premium – New Voltage Regulator (Part No.RAA3137)

New Voltage Regulator

from

$48.99
CARQUEST Voltage Regulators are engineered and created by an automotive charging system manufacturer designed to meet or exceed OEM specifications.

Product Features:
  • CARQUEST Voltage Regulators are designed to match OE fit, form and function. Fitted with critical OEM electronic components results in longer life expectancy.
  • CARQUEST Voltage Regulators are mechanically designed with utilization of surface mount technology, robust mechanical housing, and consistent encapsulation to protect against moistures & vibration.
  • CARQUEST Voltage Regulators uses surface mount technology and uniform encapsulation to protect against moistures & vibration.
  • CARQUEST Voltage Regulators are 100% individually tested for all product functionalities that includes the proper voltage set-point, power capabilities, and other product specifications.
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Carquest Premium – Starter Bushing (Part No.SBA5144)

Starter Bushing

from

$2.49
The starting system consists of the rotating electrical motor and solenoid which may be mounted on the starter motor or mounted remotely. The electric motor drives a gear which engages with the engine’s flywheel located at the rear of the motor, when the motor is energized, the motor will turn the engines crankshaft. Individual motor components are available to service any failed part within the motor such as brushes, bushings, and starter drive unit.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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Carquest Premium – Starter Bushing (Part No.SBA5148)

Starter Bushing

from

$2.79
The starting system consists of the rotating electrical motor and solenoid which may be mounted on the starter motor or mounted remotely. The electric motor drives a gear which engages with the engine’s flywheel located at the rear of the motor, when the motor is energized, the motor will turn the engines crankshaft. Individual motor components are available to service any failed part within the motor such as brushes, bushings, and starter drive unit.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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Carquest Premium – Starter Bushing (Part No.SBA5213)

Starter Bushing

from

$2.99
The starting system consists of the rotating electrical motor and solenoid which may be mounted on the starter motor or mounted remotely. The electric motor drives a gear which engages with the engine’s flywheel located at the rear of the motor, when the motor is energized, the motor will turn the engines crankshaft. Individual motor components are available to service any failed part within the motor such as brushes, bushings, and starter drive unit.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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Carquest Premium – Alternator Diode Trio (Part No.SCA1002)

Alternator Diode Trio

from

$6.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.

Product Features:
  • Application matched components ensure the charging system can be returned to like new condition.
See More

Helping You Find the Right Alternators and Starters for Your Chevrolet R20

You love your R20. So we’ve made it easier than ever to help you find Chevrolet R20 Alternators and Starters in our online catalog. Our inventory holds 62 aftermarket and OEM Alternators and Starters for your Chevrolet R20, ranging from $2.49 to $373.99.

We offer parts from 12 brands trusted to make quality Alternators and Starters for your Chevrolet R20. Before you buy, take some time to read through customer reviews. We currently have 3,477 reviews of Chevrolet R20 Alternators and Starters from previous customers. Some of the top rated parts include Alternator: Remanufactured, 105 Amps, Limited Lifetime Warranty with 3.5 stars and Alternator: Remanufactured, 78 Amps, Limited Lifetime Warranty with 4.3 stars.

Find your R20 Alternators and Starters here, order online, and have your order shipped directly to your home. Prefer to have an in-person look at your Chevrolet R20 part to confirm it’s just right? You can find your nearest Advance Auto Parts store and confirm they have the part in stock before heading over.

Top Alternators and Starters Brands for Your Chevrolet R20

Our inventory holds Alternators and Starters for your Chevrolet R20 from 12 trusted brands. You’ll find OEM and aftermarket parts from brands like Carquest Premium, Carquest, and Locksmart, all of which can keep that Chevrolet happy.

Top-Rated Carquest Premium Alternators and Starters

Leading Carquest Premium Alternators and Starters

We carry Carquest Premium brand parts for your Chevrolet R20 across several catalog categories, including Starter Parts. Some of our most reviewed Carquest Premium parts include:

FAQs for Chevrolet R20 Alternators and Starters

What are the most purchased Alternators and Starters for the Chevrolet R20?

Out of 62 Alternators and Starters for the Chevrolet R20, the most popular in our inventory are:
Ignition Lock Cylinder
from $25.05
(25)
Ignition Lock Cylinder
Ignition Lock Cylinders

What are the top-rated Chevrolet R20 Alternators and Starters?

Top-rated Alternators and Starters for your Chevrolet R20 based on customer reviews/ratings are:
Alternator: Remanufactured, 105 Amps, Limited Lifetime Warranty
from $132.99
(16)
Alternator: Remanufactured, 105 Amps, Limited Lifetime Warranty
“The alertnator was good and worked fine.”
Alternator: Remanufactured, 78 Amps, Limited Lifetime Warranty
from $126.99
(15)
Alternator: Remanufactured, 78 Amps, Limited Lifetime Warranty
“Was quick and easy pick up, install, and core return. Love the service at the Mount Joy, PA store.”
Alternator: Remanufactured, 63 Amps, Limited Lifetime Warranty
from $98.99
(11)
Alternator: Remanufactured, 63 Amps, Limited Lifetime Warranty
“Bought this due to bearings going out in old alternator(Squealed and wouldn’t charge all the time)! It was easy to install and at a great price! My ”