2018 GMC Terrain Alternators and Starters

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Essential Alternators and Starters for 2018 GMC Terrains

Carquest Premium – Carquest Multi-Use Connector, PTA1413 (Part No.PTA1413)

Carquest Multi-Use Connector, PTA1413

from

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

Carquest Multi-Use Connector, PTA1229

from

$51.99
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.
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ACDelco – ACDelco Black Multi-Purpose Pigtail, PT2787 (Part No.PT2787)

ACDelco Black Multi-Purpose Pigtail, PT2787

from

$40.99
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.
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Carquest Premium – Carquest Starter Relay, RAA3055 (Part No.RAA3055)

Carquest Starter Relay, RAA3055

from

$13.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
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Carquest Premium – Carquest Ignition Lock Cylinder, CSC2372 (Part No.CSC2372)

Carquest Ignition Lock Cylinder, CSC2372

from

$53.99
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.
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Carquest Premium – Carquest Starter: Remanufactured, 6947S (Part No.6947S)

Carquest Starter: Remanufactured, 6947S

from

$164.99
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.
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Carquest Standard – Carquest Starter: Remanufactured, 6947SV (Part No.6947SV)

Carquest Starter: Remanufactured, 6947SV

from

$131.99
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.
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WAI – WAI Alternator: 100% NEW, 155 Amps, 11250N (Part No.11250N)

WAI Alternator: 100% NEW, 155 Amps, 11250N

from

$449.99
This 100% NEW alternator from WAI is a premium choice for those seeking reliability and performance. Engineered to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. Its advanced voltage regulator protection guards against transient voltage spikes, preventing potential battery damage, while the low saturation voltage minimizes heat dissipation for enhanced durability. The high-power rectifier assembly, featuring open junction press-fit diodes, is designed to keep the unit running cool even under demanding conditions. Fully compliant with ECU communication, this alternator guarantees seamless integration with your vehicle’s system. Each unit comes with a printed copy of test results, providing transparency and confidence in its performance from the very first use. Built for long-lasting efficiency, this alternator delivers exceptional value for your vehicle’s electrical system.
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Carquest Professional – Carquest Starter: New, 6947SN (Part No.6947SN)

Carquest Starter: New, 6947SN

from

$273.99
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.
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Carquest Premium – Carquest Starter: Remanufactured, 17997S (Part No.17997S)

Carquest Starter: Remanufactured, 17997S

from

$284.99
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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Carquest Premium – Carquest Starter: Remanufactured, 12473S (Part No.12473S)

Carquest Starter: Remanufactured, 12473S

from

$339.99
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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GM Genuine Parts – GM Genuine Parts Starter: New, 12645298 (Part No.12645298)

GM Genuine Parts Starter: New, 12645298

from

$531.99
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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WAI – WAI Alternator: 100% NEW, 120 Amps, 11459N (Part No.11459N)

WAI Alternator: 100% NEW, 120 Amps, 11459N

from

$349.99
This 100% NEW alternator from WAI is a premium choice for those seeking reliability and performance. Engineered to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. Its advanced voltage regulator protection guards against transient voltage spikes, preventing potential battery damage, while the low saturation voltage minimizes heat dissipation for enhanced durability. The high-power rectifier assembly, featuring open junction press-fit diodes, is designed to keep the unit running cool even under demanding conditions. Fully compliant with ECU communication, this alternator guarantees seamless integration with your vehicle’s system. Each unit comes with a printed copy of test results, providing transparency and confidence in its performance from the very first use. Built for long-lasting efficiency, this alternator delivers exceptional value for your vehicle’s electrical system.
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Carquest Premium – Carquest Alternator: Remanufactured, 125 Amps, 11459A (Part No.11459A)

Carquest Alternator: Remanufactured, 125 Amps, 11459A

from

$279.99
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.
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Bosch – Bosch Alternator: Remanufactured, 150 Amps, AL8838X (Part No.AL8838X)

Bosch Alternator: Remanufactured, 150 Amps, AL8838X

from

$339.99
The Bosch Premium Alternator, remanufactured to deliver 150 amps, is engineered for exceptional performance and reliability. Full-load tested to meet Bosch’s rigorous performance standards, this alternator ensures dependable operation under demanding conditions. With a 12 VDC output and a clockwise rotation direction, it is designed to integrate seamlessly into your vehicle’s electrical system. Unlike rebuilt units, this alternator is 100% factory tested and remanufactured using high-quality materials and cutting-edge technology, ensuring long-lasting durability. Whether you’re replacing a worn-out alternator or upgrading for better performance, this unit offers outstanding value and peace of mind.
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Carquest Premium – Carquest Alternator: Remanufactured, 150 Amps, 11647A (Part No.11647A)

Carquest Alternator: Remanufactured, 150 Amps, 11647A

from

$259.99
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.
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Carquest Premium – Carquest Alternator: Remanufactured, 150 Amps, 10411A (Part No.10411A)

Carquest Alternator: Remanufactured, 150 Amps, 10411A

from

$546.99
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.
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Carquest Premium – Carquest Alternator: Remanufactured, 150 Amps, 11919A (Part No.11919A)

Carquest Alternator: Remanufactured, 150 Amps, 11919A

from

$385.99
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.
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GM Genuine Parts – GM Genuine Parts Alternator: New, 155 Amps, 22988006 (Part No.22988006)

GM Genuine Parts Alternator: New, 155 Amps, 22988006

from

$582.99
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).
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Bosch – Bosch Alternator: Remanufactured, 120 Amps, AL8880X (Part No.AL8880X)

Bosch Alternator: Remanufactured, 120 Amps, AL8880X

from

$428.99
The Bosch Premium Alternator, remanufactured to deliver 120 amps at 12 VDC, is engineered for peak performance and reliability. Full-load tested to meet Bosch’s rigorous performance standards, this alternator ensures consistent power delivery for demanding electrical systems. Unlike rebuilt units, it is 100% factory tested and remanufactured using high-quality materials and advanced technology, guaranteeing durability and long-lasting operation. Designed with a clockwise rotation direction, it seamlessly integrates into compatible systems, making it a dependable choice for maintaining your vehicle’s electrical efficiency. Built to Bosch’s exacting specifications, this alternator offers exceptional value and peace of mind for drivers seeking reliable performance.
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Litens – Litens Overrunning Alternator Decoupling (OAD) Pulley – Original Equipment Quality, 920040A (Part No.920040A)

Litens Overrunning Alternator Decoupling (OAD) Pulley - Original Equipment Quality, 920040A

from

$128.99
Litens Automotive is the original equipment supplier for the 2013-2014 Chevrolet Equinox/GMC Terrain with 3.6L / 2012-2015 Cadillac SRX with 3.6L / 2010-2011 Saab 9-5, Cadillac SRX with 2.8L . 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. 70,000 – 90,000 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.
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Litens – Litens Overrunning Alternator Decoupling (OAD) Pulley – Original Equipment Quality, 920065A (Part No.920065A)

Litens Overrunning Alternator Decoupling (OAD) Pulley - Original Equipment Quality, 920065A

from

$59.99
Litens Automotive is the original equipment supplier for this GM application. This replacement alternator pulley is also designed and produced by Litens and is exact in all form, fit, and performance characteristics as the original equipment 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. 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.
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Litens – Litens Overrunning Alternator Decoupling (OAD) Pulley – Original Equipment Quality, 920089A (Part No.920089A)

Litens Overrunning Alternator Decoupling (OAD) Pulley - Original Equipment Quality, 920089A

from

$83.99
Litens Automotive is the original equipment (O.E.) supplier for this application. This replacement alternator pulley is also designed and produced by Litens and is exact in all form, fit, and performance characteristics as the original equipment 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. Patented Original Equipment Design. 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. Our line is made up of over 900 ADTs, Pulleys, and OADs. 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.
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Upgrade your 2018 GMC Terrain with Top-Quality Alternators and Starters

When it comes to maintaining or upgrading your 2018 GMC Terrain, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your GMC or enhancing its overall performance, Alternators and Starters are key to keeping your Terrain functioning at its best. At Advance Auto Parts, we offer a wide selection of 13 Alternators and Starters for the 2018 GMC Terrain, designed to meet your needs without breaking the bank. From Alternator Pulley Part replacements to Starter 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 GMC Terrain at great prices. Our Alternators and Starters inventory for this model ranges from just $13.99 to $546.99, with an average price of $158.15. Our 13 Alternators and Starters in stock come from 4 trusted brands, so you’re sure to find the right part for your 2018 GMC Terrain 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 GMC Terrain is always ready to roll. We’re committed to providing you with everything you need to keep your Terrain in top shape, all in one place. Start shopping confidently below for your 2018 GMC Terrain!

Best-Selling Alternator Pulley Parts for 2018 GMC Terrains

Enhance the driving experience in your GMC with 2 quality Alternator Pulley Part components, starting at $59.99.

Litens – Litens Overrunning Alternator Decoupling (OAD) Pulley – Original Equipment Quality, 920089A (Part No.920089A)

Litens Overrunning Alternator Decoupling (OAD) Pulley - Original Equipment Quality, 920089A

from

$83.99
Litens Automotive is the original equipment (O.E.) supplier for this application. This replacement alternator pulley is also designed and produced by Litens and is exact in all form, fit, and performance characteristics as the original equipment 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. Patented Original Equipment Design. 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. Our line is made up of over 900 ADTs, Pulleys, and OADs. 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.
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Litens – Litens Overrunning Alternator Decoupling (OAD) Pulley – Original Equipment Quality, 920065A (Part No.920065A)

Litens Overrunning Alternator Decoupling (OAD) Pulley - Original Equipment Quality, 920065A

from

$59.99
Litens Automotive is the original equipment supplier for this GM application. This replacement alternator pulley is also designed and produced by Litens and is exact in all form, fit, and performance characteristics as the original equipment 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. 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.
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Most Popular 2018 GMC Terrain Starter Parts

Customize your GMC with 5 Starter Parts products like Starters and Starter Relays, all priced under $434.99.

GM Genuine Parts – GM Genuine Parts Starter: New, 12663052 (Part No.12663052)

GM Genuine Parts Starter: New, 12663052

from

$434.99
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).
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Carquest Premium – Carquest Starter: Remanufactured, 12473S (Part No.12473S)

Carquest Starter: Remanufactured, 12473S

from

$339.99
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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Carquest Premium – Carquest Starter: Remanufactured, 19107S (Part No.19107S)

Carquest Starter: Remanufactured, 19107S

from

$346.99
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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Carquest Premium – Carquest Starter: Remanufactured, 19614S (Part No.19614S)

Carquest Starter: Remanufactured, 19614S

from

$309.99
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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Carquest Premium – Carquest Starter Relay, RAA3055 (Part No.RAA3055)

Carquest Starter Relay, RAA3055

from

$13.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
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Top Picks for 2018 GMC Terrain Alternator Parts

Upgrade GMC Terrains with top-quality Alternator Parts parts, including 5 OEM and aftermarket selections for your 2018 model.

ACDelco – ACDelco Black Multi-Purpose Pigtail, PT2787 (Part No.PT2787)

ACDelco Black Multi-Purpose Pigtail, PT2787

from

$40.99
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.
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Carquest Premium – Carquest Multi-Use Connector, PTA1413 (Part No.PTA1413)

Carquest Multi-Use Connector, PTA1413

from

$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.
See More

Carquest Premium – Carquest Alternator: Remanufactured, 150 Amps, 10411A (Part No.10411A)

Carquest Alternator: Remanufactured, 150 Amps, 10411A

from

$546.99
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.
See More

Carquest Premium – Carquest Alternator: Remanufactured, 150 Amps, 11919A (Part No.11919A)

Carquest Alternator: Remanufactured, 150 Amps, 11919A

from

$385.99
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.
See More

Carquest Premium – Carquest Alternator: Remanufactured, 130 Amps, 10427A (Part No.10427A)

Carquest Alternator: Remanufactured, 130 Amps, 10427A

from

$377.99
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.
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In-Demand Ignition Lock Parts for 2018 GMC Terrains

Select from 1 premium Ignition Lock Parts parts for your 2018 GMC Terrain.

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

Carquest Ignition Lock Cylinder, CSC2372

from

$53.99
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.
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FAQs for 2018 GMC Terrain Alternators and Starters

Which Alternators and Starters are best-sellers for 2018 GMC Terrains?

Out of 13 Alternators and Starters that fit 2018 GMC Terrains, the following parts are the top sellers:

What’s the price range for 2018 GMC Terrain Alternators and Starters?

Alternators and Starter prices for the 2018 GMC Terrain start at $13.99 and go up to $546.99 for the most premium parts.

What’s the average price of a Alternators and Starter for a 2018 GMC Terrain?

The average price for Alternators and Starters for the 2018 GMC Terrain is $158.15. 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 GMC Terrain model years?

Yes, we currently carry Alternators and Starters for 13 model years of GMC Terrains between 2010 and 2024. Alternators and Starters are bought most frequently for the following model years: 2022, 2021, 2020, 2019, 2017, 2016, 2015, 2014, and 2013.

What are the cheapest Alternators and Starters for my 2018 GMC Terrain?

The cheapest 2018 GMC Terrain Alternators and Starters we carry in stock are:

What types of Alternators and Starters do you sell for my 2018 GMC Terrain?

As of 8/2/26, these are some of the most in-demand types of Alternators and Starters for a 2018 GMC Terrain:

Can I get help with 2018 GMC Terrain 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 GMC Alternators and Starters and more.

What is your return policy for GMC Terrain Alternators and Starters?

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