2018 Audi S3 Alternators and Starters

Essential Alternators and Starters for 2018 Audi S3s

Valeo – Starter: New (Part No.442388)

Starter: New

from

$399.99
As a global leader in original equipment electrical systems since 1923, Valeo offers 100% new starter motors designed for performance and long-term reliability. Unlike remanufactured units, Valeo premium starters use entirely new components to eliminate premature failure risks and ensure consistent power delivery. Built to original equipment specifications, each starter undergoes stringent quality testing including noise, vibration, corrosion, and endurance validation under extreme conditions. With up to 40,000 test cycles simulating real-world starts, Valeo starters guarantee long-lasting performance. Trusted by major automakers worldwide, Valeo brings OE innovation and durability to the aftermarket with a perfect-fit solution that meets today¿s electrical system demands.

Product Features:
  • 100% NEW ¿ Valeo premium starters are 100% new, not remanufactured, eliminating risks of premature failure
  • 100% NEW ┐ Valeo premium starters are 100% new, not remanufactured, eliminating risks of premature failure
  • OE FIT ¿ Direct replacement design ensures perfect fit and easy installation without modifications
  • OE FIT ┐ Direct replacement design ensures perfect fit and easy installation without modifications
  • EXTREME TESTED ¿ Subjected to rigorous testing for noise, vibration, corrosion, and durability under harsh conditions
  • EXTREME TESTED ┐ Subjected to rigorous testing for noise, vibration, corrosion, and durability under harsh conditions
  • HIGH-PERFORMANCE VALIDATION ¿ Undergoes up to 40,000 cycles of speed, temperature, and electrical measurement tests
  • HIGH-PERFORMANCE VALIDATION ┐ Undergoes up to 40,000 cycles of speed, temperature, and electrical measurement tests
  • LONG-LASTING RELIABILITY ¿ Built for consistent starting power and long service life across a range of vehicle applications.
  • LONG-LASTING RELIABILITY ┐ Built for consistent starting power and long service life across a range of vehicle applications.
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Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.19214S)

Starter: Remanufactured, Limited Lifetime Warranty

from

$321.99
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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WAI – Starter: 1.1kW/12 Volt, CCW, 11-Tooth Pinion (Part No.19214N)

Starter: 1.1kW/12 Volt, CCW, 11-Tooth Pinion

from

$182.99
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.19630S)

Starter: Remanufactured, Limited Lifetime Warranty

from

$405.99
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.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • 100% remanufactured drive clutch assembly ensures lasting performance
  • Armatures and commutators are 100% load tested
  • New motor lead terminals and solenoid contacts are used to ensure maximum connectivity
  • 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
  • This part number is upgraded with a durable sealant to help prevent contamination from engine leaks
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Bosch – Starter: Remanufactured (Part No.SR0840X)

Starter: Remanufactured

from

$687.99
Product Features:
  • Engineered for exceptional performance and reliability, ensuring dependable operation for your vehicle.
  • Designed with a counterclockwise (left) rotation and 11 teeth for precise engagement and smooth functionality.
  • Operates at 12 VDC to deliver consistent and efficient power to start your engine effortlessly.
  • Remanufactured to Bosch’s high standards, undergoing rigorous testing for durability and long-lasting performance.
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Valeo – Alternator: New, 180 Amps (Part No.439737)

Alternator: New, 180 Amps

from

$584.99
The Valeo premium alternator delivers exceptional performance and reliability, making it a top choice for automotive electrical systems. Designed with 100% new components and core, this alternator eliminates the risk of premature failure, ensuring long-lasting durability compared to remanufactured units. Featuring premium rare earth magnets, it achieves superior efficiency by increasing output without enlarging its size. With an impressive 180-amp rating and 12 VDC voltage, this alternator is engineered for demanding electrical needs. Its application-specific design guarantees an exact fit, while rigorous testing under extreme conditions for up to six months ensures reliability in the harshest environments. Resistant to heat, vibration, and contaminants, it maintains maximum charge output even under challenging circumstances. As the original equipment part now available in the aftermarket, this Valeo alternator combines innovation and quality, boosting fuel economy and eliminating voltage drops. Perfect for those seeking unmatched performance and durability, it rotates clockwise and belongs to the trusted Valeo OE family.

Product Features:
  • Valeo premium alternators are 100% new products (not remanufactured)
  • 100% new components and core eliminates premature failure for increased durability over remanufactured units
  • All parts are application specific for an exact fit
  • Premium rare earth magnets increase the output of the alternator without increasing the size for better efficiency
  • All applications go under extreme condition testing up to 6 months to ensure reliability under the harshest conditions and electrical demands
  • High resistance to heat, vibration, and contaminating particles helps maintain maximum charge output
  • Part Number 439737 is the original equipment part now available in the aftermarket.
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Carquest Premium – Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (Part No.10417A)

Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty

from

$618.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and 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 limited 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:


    Product Features:
    • Designed to meet or exceed OE specifications for fit, form and function
    • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
    • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
    • 100% new OE-quality brushes and bearings are used to ensure long service life
    • Rotors and stators are load tested and double insulated for maximum charging performance
    • Slip rings are precision polished for maximum brush contact and service life
    • 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
See More

Carquest Premium – Alternator: Remanufactured, 180 Amps, Limited Lifetime Warranty (Part No.10433A)

Alternator: Remanufactured, 180 Amps, Limited Lifetime Warranty

from

$716.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and 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 limited 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:


    Product Features:
    • Designed to meet or exceed OE specifications for fit, form and function
    • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
    • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
    • 100% new OE-quality brushes and bearings are used to ensure long service life
    • Rotors and stators are load tested and double insulated for maximum charging performance
    • Slip rings are precision polished for maximum brush contact and service life
    • 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
See More

Carquest Premium – Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (Part No.11894A)

Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty

from

$458.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and 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 limited 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:


    Product Features:
    • Designed to meet or exceed OE specifications for fit, form and function
    • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
    • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
    • 100% new OE-quality brushes and bearings are used to ensure long service life
    • Rotors and stators are load tested and double insulated for maximum charging performance
    • Slip rings are precision polished for maximum brush contact and service life
    • 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
See More

Carquest Premium – Alternator: Remanufactured, 140 Amps, Limited Lifetime Warranty (Part No.10272A)

Alternator: Remanufactured, 140 Amps, Limited Lifetime Warranty

from

$599.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and 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 limited 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:


    Product Features:
    • Designed to meet or exceed OE specifications for fit, form and function
    • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
    • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
    • 100% new OE-quality brushes and bearings are used to ensure long service life
    • Rotors and stators are load tested and double insulated for maximum charging performance
    • Slip rings are precision polished for maximum brush contact and service life
    • 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
See More

Carquest Premium – Ignition Lock Cylinder (Part No.CSC5003)

Ignition Lock Cylinder

from

$723.99
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.
See More

Litens – Overrunning Alternator Decoupling (OAD) Pulley – Original Equipment Quality (Part No.920851A)

Overrunning Alternator Decoupling (OAD) Pulley - Original Equipment Quality

from

$279.99
Litens Automotive is the original equipment supplier to Audi/VW for this decoupling alternator pulley. This replacement pulley is also designed and produced by Litens and is exact in all form, fit, and performance characteristics as the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). Decoupling pulleys are engine specific and should never be interchanged with other types of pulley technology. The Litens OAD type pulley is designed to free-wheel in one direction and, with an internal spring and damping device, softly engage in the opposite direction. The OAD is designed as a sacrificial part of the front-end accessory drive system, protecting other belt driven component as well as the alternator. The correct decoupler pulley ensures smooth, quiet performance as well as increasing vehicle gas mileage. Under normal driving conditions, the original pulley will require replacement in approx. 60,000 – 70,000 miles. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket.

Product Features:
  • Patented Original Equipment Design
  • Protects the alternator and other front-end accessory drive components.
  • Installation instructions included.
  • New plastic cap included with the OAD.
  • Tools Required – Litens recommends using a long 10mm 12 point driver bit (also known as a triple square) and a 17×20 spline tool such as a Metal Nerd MNXZ10 and a Miller Special Tools P/N 8823 and a torque wrench.
  • Professional mechanics can install this replacement OAD in approximately 2 hour. During alternator replacement, belts, tensioners, and routing pulleys should be inspected.
  • 56.2mm O.D.; 17mm I.D; 40.6mm width; ribbed running surface for a 6-rib serpentine belt; high-grade steel construction. 17mm Spline bit driver Included for ease of installation.
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Mann-Filter – Cartridge Oil Filter: Ideal For Any Type of Oil (Part No.HU 6013 Z)

Cartridge Oil Filter: Ideal For Any Type of Oil

from

$15.49
More and more performance, less and less consumption – in order to meet the high demands placed on modern engines, automobile manufacturers demand the absolute highest levels of performance from the engine components used. The oil circuit is of central importance here, as only clean engine oil can permanently ensure consistent engine performance. If the circulating oil is not permanently freed of impurities and combustion residues, protection from wear is no longer guaranteed. In the worst case, this may even damage the engine. If you want to play it safe when choosing an oil filter, choose MANN-FILTER. They are designed for modern high-performance oils and can stand up to even the most demanding technical challenges. As the application areas of oil filters and the demands placed on them vary, MANN-FILTER oil filters are available in different designs.

Product Features:
  • Outstanding dirt holding capacity
  • Prolongs service intervals and continues to meet the technical requirements of high-performance engines
  • Offers even faster and optimized oil supply when starting the engine
See More

Upgrade your 2018 Audi S3 with Top-Quality Alternators and Starters

When it comes to maintaining or upgrading your 2018 Audi S3, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Audi or enhancing its overall performance, Alternators and Starters are key to keeping your S3 functioning at its best. At Advance Auto Parts, we offer a wide selection of 9 Alternators and Starters for the 2018 Audi S3, designed to meet your needs without breaking the bank. From Starter Part replacements to Ignition Lock Parts upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Alternators and Starters for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Alternators and Starters for your 2018 Audi S3 at great prices. Our Alternators and Starters inventory for this model ranges from just $15.49 to $723.99, with an average price of $466.27. Our 9 Alternators and Starters in stock come from 4 trusted brands, so you’re sure to find the right part for your 2018 Audi S3 without overspending.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Alternators and Starter upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 2018 Audi S3 is always ready to roll. We’re committed to providing you with everything you need to keep your S3 in top shape, all in one place. Start shopping confidently below for your 2018 Audi S3!

Best-Selling Starter Parts for 2018 Audi S3s

Enhance the driving experience in your Audi with 2 quality Starter Part components, starting at $15.49.

Mann-Filter – Cartridge Oil Filter: Ideal For Any Type of Oil (Part No.HU 6013 Z)

Cartridge Oil Filter: Ideal For Any Type of Oil

from

$15.49
More and more performance, less and less consumption – in order to meet the high demands placed on modern engines, automobile manufacturers demand the absolute highest levels of performance from the engine components used. The oil circuit is of central importance here, as only clean engine oil can permanently ensure consistent engine performance. If the circulating oil is not permanently freed of impurities and combustion residues, protection from wear is no longer guaranteed. In the worst case, this may even damage the engine. If you want to play it safe when choosing an oil filter, choose MANN-FILTER. They are designed for modern high-performance oils and can stand up to even the most demanding technical challenges. As the application areas of oil filters and the demands placed on them vary, MANN-FILTER oil filters are available in different designs.

Product Features:
  • Outstanding dirt holding capacity
  • Prolongs service intervals and continues to meet the technical requirements of high-performance engines
  • Offers even faster and optimized oil supply when starting the engine
See More

Valeo – Starter: New (Part No.442388)

Starter: New

from

$399.99
As a global leader in original equipment electrical systems since 1923, Valeo offers 100% new starter motors designed for performance and long-term reliability. Unlike remanufactured units, Valeo premium starters use entirely new components to eliminate premature failure risks and ensure consistent power delivery. Built to original equipment specifications, each starter undergoes stringent quality testing including noise, vibration, corrosion, and endurance validation under extreme conditions. With up to 40,000 test cycles simulating real-world starts, Valeo starters guarantee long-lasting performance. Trusted by major automakers worldwide, Valeo brings OE innovation and durability to the aftermarket with a perfect-fit solution that meets today¿s electrical system demands.

Product Features:
  • 100% NEW ¿ Valeo premium starters are 100% new, not remanufactured, eliminating risks of premature failure
  • 100% NEW ┐ Valeo premium starters are 100% new, not remanufactured, eliminating risks of premature failure
  • OE FIT ¿ Direct replacement design ensures perfect fit and easy installation without modifications
  • OE FIT ┐ Direct replacement design ensures perfect fit and easy installation without modifications
  • EXTREME TESTED ¿ Subjected to rigorous testing for noise, vibration, corrosion, and durability under harsh conditions
  • EXTREME TESTED ┐ Subjected to rigorous testing for noise, vibration, corrosion, and durability under harsh conditions
  • HIGH-PERFORMANCE VALIDATION ¿ Undergoes up to 40,000 cycles of speed, temperature, and electrical measurement tests
  • HIGH-PERFORMANCE VALIDATION ┐ Undergoes up to 40,000 cycles of speed, temperature, and electrical measurement tests
  • LONG-LASTING RELIABILITY ¿ Built for consistent starting power and long service life across a range of vehicle applications.
  • LONG-LASTING RELIABILITY ┐ Built for consistent starting power and long service life across a range of vehicle applications.
See More

Most Popular 2018 Audi S3 Ignition Lock Parts

Customize your Audi with 1 Ignition Lock Parts products like Ignition Lock Cylinders, all priced under $723.99.

Carquest Premium – Ignition Lock Cylinder (Part No.CSC5003)

Ignition Lock Cylinder

from

$723.99
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.
See More

Top Picks for 2018 Audi S3 Alternator Pulley Parts

Upgrade Audi S3s with top-quality Alternator Pulley Parts parts, including 1 OEM and aftermarket selections for your 2018 model.

Litens – Overrunning Alternator Decoupling (OAD) Pulley – Original Equipment Quality (Part No.920851A)

Overrunning Alternator Decoupling (OAD) Pulley - Original Equipment Quality

from

$279.99
Litens Automotive is the original equipment supplier to Audi/VW for this decoupling alternator pulley. This replacement pulley is also designed and produced by Litens and is exact in all form, fit, and performance characteristics as the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). Decoupling pulleys are engine specific and should never be interchanged with other types of pulley technology. The Litens OAD type pulley is designed to free-wheel in one direction and, with an internal spring and damping device, softly engage in the opposite direction. The OAD is designed as a sacrificial part of the front-end accessory drive system, protecting other belt driven component as well as the alternator. The correct decoupler pulley ensures smooth, quiet performance as well as increasing vehicle gas mileage. Under normal driving conditions, the original pulley will require replacement in approx. 60,000 – 70,000 miles. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket.

Product Features:
  • Patented Original Equipment Design
  • Protects the alternator and other front-end accessory drive components.
  • Installation instructions included.
  • New plastic cap included with the OAD.
  • Tools Required – Litens recommends using a long 10mm 12 point driver bit (also known as a triple square) and a 17×20 spline tool such as a Metal Nerd MNXZ10 and a Miller Special Tools P/N 8823 and a torque wrench.
  • Professional mechanics can install this replacement OAD in approximately 2 hour. During alternator replacement, belts, tensioners, and routing pulleys should be inspected.
  • 56.2mm O.D.; 17mm I.D; 40.6mm width; ribbed running surface for a 6-rib serpentine belt; high-grade steel construction. 17mm Spline bit driver Included for ease of installation.
See More

In-Demand Alternator Parts for 2018 Audi S3s

Select from 5 premium Alternator Parts parts for your 2018 Audi S3, with prices ranging from $431.99 to $716.99.

Carquest Premium – Alternator: Remanufactured, 140 Amps, Limited Lifetime Warranty (Part No.10273A)

Alternator: Remanufactured, 140 Amps, Limited Lifetime Warranty

from

$431.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and 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 limited 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:


Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
  • 100% new OE-quality brushes and bearings are used to ensure long service life
  • Rotors and stators are load tested and double insulated for maximum charging performance
  • Slip rings are precision polished for maximum brush contact and service life
  • 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
See More

Carquest Premium – Alternator: Remanufactured, 180 Amps, Limited Lifetime Warranty (Part No.10433A)

Alternator: Remanufactured, 180 Amps, Limited Lifetime Warranty

from

$716.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and 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 limited 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:


Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
  • 100% new OE-quality brushes and bearings are used to ensure long service life
  • Rotors and stators are load tested and double insulated for maximum charging performance
  • Slip rings are precision polished for maximum brush contact and service life
  • 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
See More

Carquest Premium – Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (Part No.10417A)

Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty

from

$618.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and 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 limited 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:


Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
  • 100% new OE-quality brushes and bearings are used to ensure long service life
  • Rotors and stators are load tested and double insulated for maximum charging performance
  • Slip rings are precision polished for maximum brush contact and service life
  • 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
See More

Valeo – Alternator: New, 140 Amps (Part No.439814)

Alternator: New, 140 Amps

from

$549.99
The Valeo premium alternator delivers exceptional performance and reliability, making it a top choice for automotive electrical systems. Designed with 100% new components and core, this alternator eliminates the risk of premature failure, ensuring long-lasting durability compared to remanufactured units. Featuring premium rare earth magnets, it achieves superior efficiency by increasing output without enlarging its size. Engineered for exact fit with application-specific parts, it guarantees seamless installation and compatibility. With an impressive 140-amp rating and 12 VDC voltage, this alternator is built to handle demanding electrical loads. Rigorous testing under extreme conditions for up to six months ensures its reliability in harsh environments, while its resistance to heat, vibration, and contaminants maintains maximum charge output. As the original equipment part now available in the aftermarket, Valeo’s alternator combines innovation and quality, boosting fuel economy and eliminating voltage drops. Trust Valeo’s expertise since 1923 for a product that delivers unmatched value and performance.

Product Features:
  • Valeo premium alternators are 100% new products (not remanufactured)
  • 100% new components and core eliminates premature failure for increased durability over remanufactured units
  • All parts are application specific for an exact fit
  • Premium rare earth magnets increase the output of the alternator without increasing the size for better efficiency
  • All applications go under extreme condition testing up to 6 months to ensure reliability under the harshest conditions and electrical demands
  • High resistance to heat, vibration, and contaminating particles helps maintain maximum charge output
  • Part Number 439814 is the original equipment part now available in the aftermarket.
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Carquest Premium – Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (Part No.11894A)

Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty

from

$458.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and 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 limited 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:


Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
  • 100% new OE-quality brushes and bearings are used to ensure long service life
  • Rotors and stators are load tested and double insulated for maximum charging performance
  • Slip rings are precision polished for maximum brush contact and service life
  • 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
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FAQs for 2018 Audi S3 Alternators and Starters

Which Alternators and Starters are best-sellers for 2018 Audi S3s?

Out of 9 Alternators and Starters that fit 2018 Audi S3s, the following parts are the top sellers:

What’s the price range for 2018 Audi S3 Alternators and Starters?

Alternators and Starter prices for the 2018 Audi S3 start at $15.49 and go up to $723.99 for the most premium parts.

What’s the average price of a Alternators and Starter for a 2018 Audi S3?

The average price for Alternators and Starters for the 2018 Audi S3 is $466.27. Keep in mind the variety of part types within our Alternators and Starter category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Alternators and Starters for other Audi S3 model years?

Yes, we currently carry Alternators and Starters for 8 model years of Audi S3s between 2015 and 2025. Alternators and Starters are bought most frequently for the following model years: 2023, 2022, 2020, 2019, 2017, 2016, 2015, 2024, and 2025.

What are the cheapest Alternators and Starters for my 2018 Audi S3?

The cheapest 2018 Audi S3 Alternators and Starters we carry in stock are:

What types of Alternators and Starters do you sell for my 2018 Audi S3?

As of 11/2/25, these are some of the most in-demand types of Alternators and Starters for a 2018 Audi S3:

Can I get help with 2018 Audi S3 Alternators and Starter orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Audi Alternators and Starters and more.

What is your return policy for Audi S3 Alternators and Starters?

Advance Auto Parts keeps returns simple. For new Audi S3 Alternators and Starters and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.