2012 Buick LaCrosse Alternators and Starters

Below you will find various in-demand Buick Alternators and Starters, components and accessories for your 2012 LaCrosse. Advance Auto Parts has popular LaCrosse parts like Starter Parts, Ignition Lock Parts, Alternator Parts and more. You’ll also find aftermarket and OEM Alternators and Starters for other LaCrosse model years including 2010, 2011, 2013, 2014, 2015, 2016, 2017, 2018, 2019 and more. Select a category of 2012 Buick LaCrosse Alternators and Starters below and start saving instantly.

Popular 2012 Buick LaCrosse Alternators and Starters Categories

Alternators

Starters

Ignition Lock Cylinders

Alternator Pigtails

Starter Solenoid Connector

Essential Alternators and Starters for 2012 Buick LaCrosses

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$124.99

This ignition lock cylinder is designed to match the fit and function of the original on specified GM vehicles. It comes complete with one valet key used for installation setup and 2 transponder keys. The transponder keys require programming with an appropriate scan tool.

Product Features:

Direct replacement – this ignition lock cylinder is designed to match the fit and function of the original on specified GM vehicles
Restores function – engineered to ensure proper operation of the ignition key when the original cylinder is binding or has failed
Programming required – the included transponder keys will require programming with an appropriate scan tool
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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$86.99

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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$99.99

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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$53.99

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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$109.99

This ignition lock cylinder is designed to match the fit, function and performance of the original equipment part on specified vehicles. It is engineered to help restore ignition lock function when an original cylinder is broken or worn out.

Product Features:

Direct replacement – this ignition lock cylinder matches the fit and function of the original equipment assembly on certain vehicle years, makes and models
Ideal solution – engineered to help restore and ensure the functionality of the lock cylinder
Durable construction – designed and manufactured to strict specifications for reliable performance
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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$42.49

ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

Protective outer coverings help provide long-lasting durability
Color-coded wires allow for easy installation
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

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$46.99

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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$33.99

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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$52.99

WIRE CONNECTOR

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$281.99

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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$281.99

GM Genuine Parts Remanufactured Starter Motors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Remanufacturing starter motors is an industry standard practice that involves disassembly of existing units, and replacing components that are most prone to wear with new components. Damaged and obsolete parts are replaced and are end of line tested to ensure they perform to GM specifications. In addition, remanufacturing returns components back into service rather than processing as scrap or simply disposing of them. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:

Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
Remanufacturing is an industry standard practice that returns parts into service rather than scrapping them
Tested to ensure they perform to GM specifications

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$264.99

The newly manufactured starter motor is an exact replacement for your GM vehicle’s original starter, ensuring seamless compatibility and reliable performance. Designed, engineered, and rigorously tested to meet GM’s high standards, this starter motor is backed by General Motors for added peace of mind. With a clockwise rotation, 12-tooth configuration, and 12 VDC voltage, it delivers precise and efficient operation tailored to your Chevrolet, Buick, GMC, or Cadillac vehicle. As part of the MIPGM0T2 family, this starter incorporates updated materials and advanced technologies, reflecting GM’s commitment to innovation and durability. Whether you’re restoring your vehicle’s starting system or upgrading for long-term reliability, this GM Genuine Part offers exceptional value and performance.

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$135.99

Carquest Standard starters are designed and built to meet original equipment (O.E.) specifications, while providing great value. Our starters are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. All of our Carquest Standard starters are inspected and 100% tested to ensure they are built to meet OEM fit, form and function. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:

Built to meet OE quality in fit, form, and function.
Units are rebuilt with critical parts and components that are 100% new.
Designed to meet OE specifications for fit, form and function
Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
Application-specific technical bulletins included where applicable
All units are 100% triple tested to ensure quality and performance
Designed to meet OE specifications for fit, form and function
Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
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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$239.99

Carquest Professional starters are 100% new units that are built to meet or exceed original equipment (O.E.) specifications. Our new starters are engineered and built by an IATF/TS 16949 certified supplier that meets the highest standards achievable. Carquest Professional starters are re-engineered to include improvements and enhancements (where applicable) to the OE design to extend longevity and service life. Our new starters 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:

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
Housings are 100% new with dimensions computer gauged and measured to ensure proper fitment
All new components are utilized to ensure long service life
Internal electronics are upgraded for heavy duty reliability (where applicable)
Armatures and commutators are 100% load tested
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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$176.99

Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading 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 a 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:

Each unit is triple-tested to ensure quality and performance
All wear components (brushes, bushings, and bearings) are replaced with all NEW components in the remanufacturing process
Tech Hotline with trained ASE Certified Technicians: Call Carquest Technical Support at 1-800-228-9672
Remanufactured to meet or exceed OE specifications for fit, form, and function, ensuring reliable performance and compatibility.
100% electronic testing of all critical components and the entire unit guarantees optimal functionality and durability.

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$207.99

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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$219.99

GM Genuine Parts Starter Motors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These starters consist of a powerful motor coupled to the starter drive pinion. The starter drive pinion engages the engine flywheel to crank the engine. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:

Newly manufactured as an exact replacement for your GM vehicle’s original starter
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

from

$273.99

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
Housings are 100% new with dimensions computer gauged and measured to ensure proper fitment
All new components are utilized to ensure long service life
Internal electronics are upgraded for heavy duty reliability (where applicable)
Armatures and commutators are 100% load tested
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
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
Housings are 100% new with dimensions computer gauged and measured to ensure proper fitment
All new components are utilized to ensure long service life
Internal electronics are upgraded for heavy duty reliability (where applicable)
Armatures and commutators are 100% load tested
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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$219.99

Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading 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 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
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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$304.99

The Valeo premium alternator, delivering 150 amps at 12 VDC, is a top-tier solution for reliable electrical performance. Built entirely with new components, this alternator eliminates the risk of premature failure often associated with remanufactured units, ensuring long-lasting durability. Designed with application-specific parts for an exact fit, it features premium rare earth magnets that enhance output efficiency without increasing size. Tested rigorously for up to six months under extreme conditions, it guarantees reliability even in the harshest environments, resisting heat, vibration, and contaminants to maintain maximum charge output. With a clockwise rotation direction and original equipment quality, Part Number 849106 is now available in the aftermarket, offering unmatched compatibility and performance. Recognized for innovation, Valeo alternators improve fuel economy and eliminate voltage drops, making them a smart investment for any vehicle’s electrical system.

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 849106 is the original equipment part now available in the aftermarket.

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$284.99

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
All units are 100% triple tested to ensure quality and performance

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$549.99

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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$298.99

Alternator: New, 120 Amps by WAI delivers exceptional performance and reliability, engineered to meet or exceed OEM specifications for a seamless fit and hassle-free installation. Designed with advanced voltage regulator protection, it safeguards against transient voltage spikes, preventing potential battery damage while ensuring efficient communication with the ECU. Its low saturation voltage minimizes heat dissipation, enhancing durability and operational efficiency. The high-power rectifier assembly features robust open junction press-fit diodes, keeping the unit cool even under demanding conditions. Each alternator comes with a printed copy of test results, providing transparency and confidence in its superior quality from the moment it powers on. Perfect for those seeking dependable power and long-lasting value.

Product Features:

Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
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.
Designed for enhanced durability and operational efficiency, the alternator’s advanced engineering minimizes heat dissipation, ensuring reliable performance even under demanding conditions.

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$307.99

This 135-amp alternator from WAI is engineered to deliver exceptional performance and reliability, making it a top choice for aftermarket replacements. Designed to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. The advanced voltage regulator protection safeguards against transient voltage spikes, preventing potential battery damage, while its low saturation voltage minimizes heat dissipation for enhanced durability. Featuring a high-power rectifier assembly with open junction press-fit diodes, this alternator is built to run cooler and more efficiently. Each unit comes with a printed copy of test results, providing transparency and confidence in its performance from the very first use. Whether you’re upgrading or replacing, this alternator offers superior quality and long-lasting value.

Product Features:

Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
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.
Built for enhanced durability, the alternator’s advanced design minimizes heat dissipation, ensuring reliable performance and long-lasting value.

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$231.99

GM Genuine Parts Alternators are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These alternators provide power to the vehicle’s electrical systems and charge the battery while the engine is running. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:

Newly manufactured as an exact replacement for your GM vehicle’s original alternator
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

from

$369.99

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

from

$321.99

Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading 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 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
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

from

$320.99

Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading 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 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
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

Upgrade your 2012 Buick LaCrosse with Top-Quality Alternators and Starters

When it comes to maintaining or upgrading your 2012 Buick LaCrosse, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Buick or enhancing its overall performance, Alternators and Starters are key to keeping your LaCrosse functioning at its best. At Advance Auto Parts, we offer a wide selection of 17 Alternators and Starters for the 2012 Buick LaCrosse, 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 2012 Buick LaCrosse at great prices. Our Alternators and Starters inventory for this model ranges from just $33.99 to $369.99, with an average price of $170.70. Our 17 Alternators and Starters in stock come from 7 trusted brands, so you’re sure to find the right part for your 2012 Buick LaCrosse without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2012 Buick LaCrosse, we stock popular OEM and aftermarket Alternators and Starters from top names like Carquest Premium, and more. Carquest Premium Alternators and Starters start at just $145.99 and boast an impressive 4.4 stars average rating from customers. With 571 customer reviews and counting, our 2012 Buick LaCrosse Alternators and Starters have a strong track record of reliability, ensuring you can trust your purchase.

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 2012 Buick LaCrosse is always ready to roll. We’re committed to providing you with everything you need to keep your LaCrosse in top shape, all in one place. Start shopping confidently below for your 2012 Buick LaCrosse!

Best-Selling Starter Parts for 2012 Buick LaCrosses

Enhance the driving experience in your Buick with 10 quality Starter Part components, starting at $52.99.

show more show less

from

$145.99

Product Features:

Each unit is triple-tested to ensure quality and performance
All wear components (brushes, bushings, and bearings) are replaced with all NEW components in the remanufacturing process
Tech Hotline with trained ASE Certified Technicians: Call Carquest Technical Support at 1-800-228-9672
Remanufactured to meet or exceed OE specifications for fit, form, and function, ensuring reliable performance and compatibility.
100% electronic testing of all critical components and the entire unit guarantees optimal functionality and durability.

from

$281.99

from

$264.99

from

$366.99

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
Housings are 100% new with dimensions computer gauged and measured to ensure proper fitment
All new components are utilized to ensure long service life
Internal electronics are upgraded for heavy duty reliability (where applicable)
Armatures and commutators are 100% load tested
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
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
Housings are 100% new with dimensions computer gauged and measured to ensure proper fitment
All new components are utilized to ensure long service life
Internal electronics are upgraded for heavy duty reliability (where applicable)
Armatures and commutators are 100% load tested
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

from

$107.99

Designed to meet OE specifications for fit, form and function
Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
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
Designed to meet OE specifications for fit, form and function
Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
Application-specific technical bulletins included where applicable
All units are 100% triple tested to ensure quality and performance

from

$273.99

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
Housings are 100% new with dimensions computer gauged and measured to ensure proper fitment
All new components are utilized to ensure long service life
Internal electronics are upgraded for heavy duty reliability (where applicable)
Armatures and commutators are 100% load tested
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
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
Housings are 100% new with dimensions computer gauged and measured to ensure proper fitment
All new components are utilized to ensure long service life
Internal electronics are upgraded for heavy duty reliability (where applicable)
Armatures and commutators are 100% load tested
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

from

$139.99

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.

from

$254.99

Newly manufactured as an exact replacement for your GM vehicle’s original starter
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

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$239.99

The Bosch Premium Starter is engineered to deliver exceptional performance and reliability, making it a trusted choice for your vehicle’s ignition system. Designed with a clockwise (right) rotation and featuring a 12-tooth configuration, this starter ensures precise engagement and smooth operation. Operating at 12 VDC, it provides consistent power to meet the demands of your engine. Built to Bosch’s high standards, this remanufactured starter undergoes rigorous testing to ensure durability and long-lasting performance. Whether you’re replacing a worn-out starter or upgrading for better reliability, this premium component offers excellent value and compatibility with your vehicle.

Product Features:

Product Features:

Engineered for exceptional performance and reliability, ensuring dependable ignition system operation.
Designed with a 12-tooth configuration for precise engagement and smooth functionality.
Operates at 12 VDC to deliver consistent power tailored to your engine’s demands.
Remanufactured to Bosch’s high standards, undergoing rigorous testing for durability and long-lasting performance.
Offers excellent value and compatibility, making it an ideal choice for replacing or upgrading your vehicle’s starter.

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$52.99

WIRE CONNECTOR

Top Picks for 2012 Buick LaCrosse Alternator Parts

Upgrade Buick LaCrosses with top-quality Alternator Parts parts, including 6 OEM and aftermarket selections for your 2012 model.

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$219.99

Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading 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 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
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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$42.49

Protective outer coverings help provide long-lasting durability
Color-coded wires allow for easy installation
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

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$46.99

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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$304.99

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 849106 is the original equipment part now available in the aftermarket.

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$33.99

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

from

$369.99

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

Top-Rated Alternators and Starters Brands For Your 2012 Buick LaCrosse

Shop for the best-rated brands offering Alternators and Starters and other products for your 2012 Buick LaCrosses. Below you’ll find some of our best rated Alternators and Starters from Carquest Premium, and more. Alternators and Starters from these brands that fit a 2012 LaCrosse start at just $145.99 and are rated as high as 4.4 stars. OEM and aftermarket Alternators and Starters don’t get more top quality, durable, and affordable than from the brands below.

Popular Carquest Premium 2012 Buick LaCrosse Alternators and Starters

When it comes to maintaining or upgrading your 2012 Buick LaCrosse, using quality Alternators and Starters is essential to ensure durability and a perfect fit. Carquest Premium ticks all of those boxes. We offer a wide selection of Carquest Premium Alternators and Starters, specifically designed for the 2012 Buick LaCrosse. With over 3 Carquest Premium brand Alternators and Starters in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $145.99, with an average price of just $215.99. Plus, with over 127 customer reviews and an average rating of 4.4 stars, you can trust that our Carquest Premium Alternators and Starters will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

from $219.99

(26)

Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty

“The representative helped identify and buy correct part online and arrange for a third party to pick it up due to my physical mobility problems.”

from $145.99

(64)

Starter: Remanufactured, Limited Lifetime Warranty

“Relatively easy install on my chevy cobalt. Been using it for a few weeks now, starts up beautifully.”

from $281.99

(37)

Starter: Remanufactured, Limited Lifetime Warranty

“There’s an older gentleman that works at this Advance Auto that will do everything he can to help you get what you’re looking for. It’s rare to find g”

FAQs for 2012 Buick LaCrosse Alternators and Starters

Which Alternators and Starters are best-sellers for 2012 Buick LaCrosses?

Out of 17 Alternators and Starters that fit 2012 Buick LaCrosses, the following parts are the top sellers:

Starter: New (11885726) – $264.99
Starter: New, Limited Lifetime Warranty (10647349) – $366.99
Starter: Remanufactured, 1 Year Limited Warranty (12516793) – $107.99

What’s the price range for 2012 Buick LaCrosse Alternators and Starters?

Alternators and Starter prices for the 2012 Buick LaCrosse start at $33.99 and go up to $369.99 for the most premium parts.

What’s the average price of a Alternators and Starter for a 2012 Buick LaCrosse?

The average price for Alternators and Starters for the 2012 Buick LaCrosse is $170.70. 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 Buick LaCrosse model years?

Yes, we currently carry Alternators and Starters for 13 model years of Buick LaCrosses between 2005 and 2019. Alternators and Starters are bought most frequently for the following model years: 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2011, and 2010.

What are the cheapest Alternators and Starters for my 2012 Buick LaCrosse?

The cheapest 2012 Buick LaCrosse Alternators and Starters we carry in stock are:

Multi-Use Connector (12441409) – $33.99
Black Multi-Purpose Pigtail (11895185) – $42.49
Multi-Use Connector (12441205) – $46.99
WIRE CONNECTOR (50130729) – $52.99
Ignition Lock Cylinder (12548203) – $53.99

What are the top-rated Alternators and Starters that fit the 2012 Buick LaCrosse?

Out of 571 reviews by customers, our 2012 Buick LaCrosse Alternators and Starters have an average customer rating of . These are some of the highest-rated Alternators and Starter types for the 2012 Buick LaCrosse and their top-rated products:

Alternator Parts
- Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (10647333) – $219.99
Starter Parts
- Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (10647333) – $219.99

What types of Alternators and Starters do you sell for my 2012 Buick LaCrosse?

As of 11/2/25, these are some of the most in-demand types of Alternators and Starters for a 2012 Buick LaCrosse:

Can I get help with 2012 Buick LaCrosse 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 Buick Alternators and Starters and more.

What is your return policy for Buick LaCrosse Alternators and Starters?

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

2012 Buick LaCrosse Alternators and Starters

Dorman – Ignition Lock Cylinder: Three Keys Included, OE Fix; with Onboard Programming (Part No.924-796)

Carquest Premium – Ignition Lock Cylinder (Part No.CSC2373)

Carquest Premium – Ignition Lock Cylinder (Part No.CSA4244)

Carquest Premium – Ignition Lock Cylinder (Part No.CSC2372)

Dorman – Ignition Lock Cylinder: Un-Coded (Part No.924-716)

GM Genuine Parts – Black Multi-Purpose Pigtail (Part No.PT2044)

Carquest Premium – Multi-Use Connector (Part No.PTA1229)

Carquest Premium – Multi-Use Connector (Part No.PTA1482)

GM Genuine Parts – WIRE CONNECTOR (Part No.PT2971)

Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.17997S)

ACDelco – Starter (Part No.323-1629)

GM Genuine Parts – Starter: New (Part No.12645298)

Carquest Standard – Starter: Remanufactured, 1 Year Limited Warranty (Part No.6484SV)

Carquest Professional – Starter: New, Limited Lifetime Warranty (Part No.6497SN)

Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.6484S)

WAI – Starter: 1.4kW/12 Volt, CW, 11-Tooth Pinion (Part No.6497N)

GM Genuine Parts – Starter: New (Part No.12657797)

Carquest Professional – Starter: New, Limited Lifetime Warranty (Part No.6947SN)

Carquest Premium – Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (Part No.11453A)

Valeo – Alternator: New, 150 Amps (Part No.849106)

Carquest Professional – Alternator: New, 125 Amps, Limited Lifetime Warranty (Part No.11127AN)

Carquest Premium – Alternator: Remanufactured, 155 Amps, Limited Lifetime Warranty (Part No.10350A)

WAI – Bosch Ir/If 120 Amp/12 Volt, Cw, 6-Groove Decoupler Pulley, Limited Lifetime Warranty (Part No.11125N)

WAI – Denso Hairpin Ir/If 135 Amp/12 Volt, Cw, 6-Groove Pulley, Limited Lifetime Warranty (Part No.11179N)

GM Genuine Parts – Alternator: New, 130 Amps, 2 Year Limited Warranty (Part No.13597244)

Carquest Professional – Alternator: New, 150 Amps, Limited Lifetime Warranty (Part No.11453AN)

Carquest Premium – Alternator: Remanufactured, 130 Amps, Limited Lifetime Warranty (Part No.11456A)

Carquest Premium – Alternator: Remanufactured, 135 Amps, Limited Lifetime Warranty (Part No.11179A)

Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.6947S)

Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.17997S)

GM Genuine Parts – Starter: New (Part No.12645298)

Carquest Professional – Starter: New, Limited Lifetime Warranty (Part No.17997SN)

Carquest Standard – Starter: Remanufactured, 1 Year Limited Warranty (Part No.6947SV)

Carquest Professional – Starter: New, Limited Lifetime Warranty (Part No.6947SN)

WAI – Starter: 1.2kW/12 Volt, CW, 9-Tooth Pinion (Part No.6947N)

GM Genuine Parts – Starter: New (Part No.12609317)

Bosch – Starter: Remanufactured (Part No.SR8661X)

GM Genuine Parts – WIRE CONNECTOR (Part No.PT2971)

Carquest Premium – Ignition Lock Cylinder (Part No.CSC2372)

Carquest Premium – Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (Part No.11453A)

GM Genuine Parts – Black Multi-Purpose Pigtail (Part No.PT2044)

Carquest Premium – Multi-Use Connector (Part No.PTA1229)

Valeo – Alternator: New, 150 Amps (Part No.849106)

Carquest Premium – Multi-Use Connector (Part No.PTA1482)

Carquest Professional – Alternator: New, 150 Amps, Limited Lifetime Warranty (Part No.11453AN)