2003 Chevrolet Trailblazer Alternators and Starters
Find Your Specific 2003 Chevrolet Trailblazer Alternators and Starters
Below you will find various in-demand Chevrolet Alternators and Starters, components and accessories for your 2003 Trailblazer. Advance Auto Parts has popular Trailblazer parts like Starter Parts, Ignition Lock Parts, Alternator Parts and more. You’ll also find aftermarket and OEM Alternators and Starters for other Trailblazer model years including
2002,
2004,
2005,
2006,
2007,
2008,
2009,
2021,
2023 and more. Select a category of 2003 Chevrolet Trailblazer Alternators and Starters below and start saving instantly.
Popular 2003 Chevrolet Trailblazer Alternators and Starters Categories
Essential Alternators and Starters for 2003 Chevrolet Trailblazers
Carquest Premium – Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (Part No.10383A)
from
$304.99
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:
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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
Product Features:
Carquest Professional – Alternator: New, 145 Amps, Limited Lifetime Warranty (Part No.8292AN)
from
$292.99
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:
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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
Carquest Premium – Alternator: Remanufactured, 145 Amps, Limited Lifetime Warranty (Part No.8489A)
from
$222.99
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:
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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
Bosch – Alternator: Remanufactured, 150 Amps, 2 Year Limited Warranty (Part No.AL8805X)
from
$236.99
The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for demanding automotive applications. Full-load tested to meet Bosch’s rigorous performance standards, this alternator ensures consistent power delivery with its 150-amp rating and 12 VDC output. Remanufactured to factory specifications using high-quality materials and advanced technology, it offers durability and long-lasting functionality. Unlike rebuilt units, Bosch’s remanufactured alternators undergo 100% factory testing to guarantee optimal operation. Designed for clockwise rotation, this alternator is built to handle the toughest conditions while maintaining peak efficiency. Whether you’re upgrading or replacing, this alternator provides unmatched value and dependable performance for your vehicle.
Product Features:
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Product Features:
- Full-load tested to guarantee compliance with Bosch’s strict performance specifications
- 100% factory tested, units are remanufactured (not rebuilt)
- Built to last – uses high quality materials and the most technologically advanced developments.
- Clockwise rotation design enhances compatibility and efficiency for seamless integration into your vehicle.
Product Features:
Bosch – Alternator: Remanufactured, 145 Amps, Limited Lifetime Warranty (Part No.AL8865X)
from
$417.99
The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for your vehicle’s electrical system. With a robust 145-amp output and 12 VDC voltage, this alternator ensures consistent power delivery for demanding applications. Engineered with high-quality materials and cutting-edge technology, it is built to last and withstand rigorous conditions. Each unit is 100% factory tested and remanufactured – not rebuilt – to meet Bosch’s stringent performance standards. Additionally, it undergoes full-load testing to guarantee compliance with strict specifications. Designed for clockwise rotation, this alternator is a dependable solution for maintaining your vehicle’s electrical efficiency and durability.
Product Features:
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Product Features:
- Full-load tested to guarantee compliance with Bosch’s strict performance specifications
- 100% factory tested, units are remanufactured (not rebuilt)
- Built to last – uses high quality materials and the most technologically advanced developments.
- Provides consistent 145-amp output to support demanding electrical applications, ensuring reliable performance for your vehicle.
- Designed for clockwise rotation to seamlessly integrate with compatible vehicle systems, enhancing operational efficiency.
Product Features:
Carquest HD Electrical – Alternator: New, 253 Amps, With Pulley (Part No.71-8292N-253A)
from
$326.99
Carquest Starters with 100% NEW construction will restore hard working vehicles to exceed OE specified performance & endurance. All new units and components offer unmatched performance, reduce downtime & customer comebacks. Carquest HD alternators are primed to keep you moving forward. Built to perform in severe duty environments where consistent efficient high outputs are required.
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Product Features:
- Contains Innovative Brush-less and Premium Brush Components that have been tested and certified for highest possible power output
- Stator – wound to OE specifications. Heavy coated Polyester wire provides consistent conductivity
- Premium Transpo rectifiers use 13mm press fit Diodes for maximum performance
- Rotor shafts CNC machined & precision balanced to eliminate vibration
- Over-Voltage shutdown limits voltage if output terminal is disconnected form the battery
- Load dump protection ensures transient voltage spikes do not damage transistor
- Improved power transmission with lower engine speed keeps accessories and powered implements running at maximum output without additional load to the engine.
Product Features:
Bosch – Alternator: Remanufactured, 150 Amps, 2 Year Limited Warranty (Part No.AL8893X)
from
$261.99
The Bosch Premium Alternator, delivering 150 amps at 12 VDC, 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. Unlike rebuilt units, it is 100% factory-tested and remanufactured using high-quality materials and cutting-edge technology, guaranteeing long-lasting durability. Designed with a clockwise rotation direction, it is built to seamlessly integrate into your vehicle’s electrical system. Whether you’re replacing a worn-out alternator or upgrading for enhanced performance, this Bosch alternator offers unmatched value and peace of mind.
Product Features:
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Product Features:
- Full-load tested to guarantee compliance with Bosch’s strict performance specifications
- 100% factory tested, units are remanufactured (not rebuilt)
- Built to last – uses high quality materials and the most technologically advanced developments.
- Seamlessly integrates with your vehicle’s electrical system for optimal compatibility and performance.
- Engineered for dependable operation under demanding conditions, ensuring reliability when you need it most.
Product Features:
Dorman – Alternator Pigtail (Part No.645-569)
from
$47.99
This alternator connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.
Product Features:
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Product Features:
- Direct replacement – this alternator connector matches the appearance and function of the factory hardware on specified applications
- Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
- Durable construction – this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Carquest Premium – Multi-Use Connector (Part No.PTA1229)
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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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
Carquest Premium – Multi-Use Connector (Part No.PTA1117)
from
$44.99
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:
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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
Dorman – Ignition Lock Cylinder: Two Keys Included (Part No.926-059)
from
$68.99
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:
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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
Dorman – Ignition Lock Cylinder Housing with Passlock Sensor (Part No.924-713)
from
$149.99
Steering column jammed or ignition switch not working? This ignition lock housing is a direct replacement for an inoperable original equipment lock housing to help restore ignition lock functions.
Product Features:
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Product Features:
- Direct replacement – this ignition lock housing matches the fit and function of the original equipment lock housing
- Durable materials – this lock housing is made from quality materials for reliable service
- Easy to install – no special tools required to install this lock housing
- Quality tested – this part has undergone vehicle try-on and material testing
Carquest Premium – Ignition Lock Cylinder (Part No.CSC1473)
from
$58.99
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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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.
Carquest Premium – Ignition Lock Housing (Part No.CSC1564)
from
$148.99
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. The ignition lock cylinder provides security requiring an ignition key to unlock the ignition switch.
Product Features:
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Product Features:
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise 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.
Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.6934S)
from
$229.99
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 – Starter: Remanufactured, Limited Lifetime Warranty (Part No.6499S)
from
$215.99
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 – Starter: Remanufactured (Part No.323-1637)
from
$447.99
Product Features:
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- 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
- Designed, engineered, and tested to rigorous standards, ensuring reliable performance and durability.
- Replaces damaged and obsolete components with new parts to enhance functionality and extend service life.
Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.6490S)
from
$219.99
Carquest Premium starters are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium starters are designed to meet or exceed OE specifications for fit, form and function. Our starters are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and needle bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.
Product Features:
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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, ensuring reliable fit, form, and function for optimal vehicle performance.
- 100% electronic testing of critical components and the entire unit guarantees consistent and dependable operation.
Product Features:
GM Genuine Parts – Starter: Remanufactured (Part No.323-1639)
from
$496.99
Product Features:
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- 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
- Designed and engineered to meet rigorous standards, ensuring reliable performance and durability.
Carquest Premium – Starter: Remanufactured (Part No.12862S)
from
$205.99
Carquest Premium starters are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium starters are designed to meet or exceed OE specifications for fit, form and function. Our starters are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and needle bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.
Product Features:
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Product Features:
- Designed to meet or exceed OE specifications for fit, form and function
- Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
- 100% remanufactured drive clutch assembly ensures lasting performance
- Armatures and commutators are 100% load tested
- New motor lead terminals and solenoid contacts are used to ensure maximum connectivity
- Application-specific technical bulletins included where applicable
- All units are 100% triple tested to ensure quality and performance
- Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
Carquest Standard – Starter: Remanufactured, 1 Year Limited Warranty (Part No.6490SV)
from
$159.99
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:
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Product Features:
- 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
Carquest Professional – Starter: New, Limited Lifetime Warranty (Part No.6492SN)
from
$221.99
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:
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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
- 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
Carquest HD Electrical – Starter: New (Part No.72-6757N)
from
$218.99
CARQUEST Starters with 100% NEW construction will restore hard working vehicles to exceed OE specified performance and endurance. All new units offer unmatched performance and reduce downtime.
Product Features:
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Product Features:
- High Quality components form the foundation our parts are built from
- Transpo innovative and high quality electronic technologies for internal components are incorporated to achieve high performance outputs
- Connectors and power transmission components are highly resistant to extreme moisture environments because we use nickel plated contactors and double armature coating. We maintain a rigorous test schedule with endurance, salt spray, dirt and grime and out
- Integrated magnetic switch provides protection against weak power from batteries.
- Over-Crank Protection (OCP) Monitors heat in starter from over cranking & shuts down starter to prevent burning
- Precision design and machining are the Extreme vibration failure solution. Vehicles often perform in adverse conditions like extreme temperatures that create tolerance shifts that produce high frequency vibration, which leads to resistance in power transf
GM Genuine Parts – Starter: Remanufactured (Part No.323-1644)
from
$384.99
Product Features:
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- 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
- Designed with a 9-tooth configuration to deliver precise and consistent engagement for reliable vehicle starting.
- Operates at 12 VDC, ensuring compatibility and optimal performance within a wide range of GM vehicles.
Carquest HD Electrical – Starter: New (Part No.72-6942N)
from
$218.99
Product Features:
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- 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.
Carquest Standard – Starter: Remanufactured, 1 Year Limited Warranty (Part No.6492SV)
from
$161.99
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:
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Product Features:
- 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
Carquest HD Electrical – Starter: New, 12V, 9 Tooth (Part No.72-6494N)
from
$199.99
Carquest Starters take advantage of the power of 100% NEW to restore hard working vehicles to OE specified performance & endurance. All new units and components offer unmatched performance, reduce downtime & customer comebacks. Carquest Starters are primed to keep fleets moving forward. Built to perform in severe duty environments, with high output capabilities built in through improved technical & material formulas for high power output and efficient performance
Product Features:
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Product Features:
- High quality components form the foundation our parts are built from. Transpo¿s innovative and high quality electronic technologies for internal components are incorporated to achieve high performance outputs.
- High quality components form the foundation our parts are built from. Transpo┐s innovative and high quality electronic technologies for internal components are incorporated to achieve high performance outputs.
- Power & Efficiency are designed into every component. No matter the ambient temperature, starters will provide maximum cranking power to get engines running.
- Connectors and power transmission components are highly resistant to extreme moisture environments because we use nickel plated contactors and double armature coating. We maintain a rigorous test schedule with endurance, salt spray, dirt and grime and out
- Integrated magnetic switch provides protection against weak power from batteries.
- Over-Crank Protection (OCP) Monitors heat in starter from over cranking & shuts down starter to prevent burning
- Precision design and machining are the Extreme vibration failure solution. Vehicles often perform in adverse conditions like extreme temperatures that create tolerance shifts that produce high frequency vibration, which leads to resistance in power transf
GM Genuine Parts – Starter: Remanufactured (Part No.323-1653)
from
$401.99
Product Features:
See More
- 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
- Designed and engineered to meet rigorous standards, ensuring reliable performance and durability.
Upgrade your 2003 Chevrolet Trailblazer with Top-Quality Alternators and Starters
When it comes to maintaining or upgrading your 2003 Chevrolet Trailblazer, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Chevrolet or enhancing its overall performance, Alternators and Starters are key to keeping your Trailblazer functioning at its best. At Advance Auto Parts, we offer a wide selection of 14 Alternators and Starters for the 2003 Chevrolet Trailblazer, 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 2003 Chevrolet Trailblazer at great prices.
Our Alternators and Starters inventory for this model
ranges from just $44.99 to $501.99, with
an average price of $180.85.
Our 14 Alternators and Starters in stock come from 6 trusted brands, so you’re sure to find the right part for your 2003 Chevrolet Trailblazer 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 2003 Chevrolet Trailblazer, we stock popular OEM and aftermarket Alternators and Starters from top names
like Carquest Premium Dorman, and more.
Carquest Premium Alternators and Starters
start at just $219.99 and boast an impressive 4.4 stars average rating from customers.
With 76 customer reviews and counting, our 2003 Chevrolet Trailblazer 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 2003 Chevrolet Trailblazer is always ready to roll. We’re committed to providing you with everything you need to keep your Trailblazer in top shape, all in one place.
Start shopping confidently below for your 2003 Chevrolet Trailblazer!
Best-Selling Starter Parts for 2003 Chevrolet Trailblazers
Enhance the driving experience in your Chevrolet with 3 quality Starter Part components, starting at $159.99.
Carquest Premium – Starter: Remanufactured, Limited Lifetime Warranty (Part No.6490S)
from
$219.99
Carquest Premium starters are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium starters are designed to meet or exceed OE specifications for fit, form and function. Our starters are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and needle bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.
Product Features:
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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, ensuring reliable fit, form, and function for optimal vehicle performance.
- 100% electronic testing of critical components and the entire unit guarantees consistent and dependable operation.
Carquest Standard – Starter: Remanufactured, 1 Year Limited Warranty (Part No.6490SV)
from
$159.99
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:
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Product Features:
- 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
Bosch – Starter: Remanufactured (Part No.SR8678X)
from
$194.99
The Bosch Premium Starter is engineered to deliver exceptional performance and reliability, making it a dependable choice for your vehicle’s ignition system. Designed with a clockwise (right) rotation and featuring 11 teeth, this starter ensures precise engagement and smooth operation. Operating at 12 VDC, it provides consistent power to meet the demands of modern vehicles. 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 peace of mind for your automotive needs.
Product Features:
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Product Features:
- Engineered for exceptional performance and reliability, ensuring dependable ignition system operation.
- Designed with a clockwise rotation and 11 teeth for precise engagement and smooth functionality.
- Operates at 12 VDC to provide consistent power for modern vehicle demands.
- Remanufactured to Bosch’s high standards, undergoing rigorous testing for durability and long-lasting performance.
- Offers excellent value and peace of mind, making it an ideal choice for replacing or upgrading your vehicle’s starter.
Most Popular 2003 Chevrolet Trailblazer Ignition Lock Parts
Customize your Chevrolet with 4 Ignition Lock Parts products
like Ignition Lock Cylinders, all
priced under $149.99.
Dorman – Ignition Lock Cylinder Housing with Passlock Sensor (Part No.924-713)
from
$149.99
Steering column jammed or ignition switch not working? This ignition lock housing is a direct replacement for an inoperable original equipment lock housing to help restore ignition lock functions.
Product Features:
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Product Features:
- Direct replacement – this ignition lock housing matches the fit and function of the original equipment lock housing
- Durable materials – this lock housing is made from quality materials for reliable service
- Easy to install – no special tools required to install this lock housing
- Quality tested – this part has undergone vehicle try-on and material testing
Carquest Premium – Ignition Lock Housing (Part No.CSC1564)
from
$148.99
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. The ignition lock cylinder provides security requiring an ignition key to unlock the ignition switch.
Product Features:
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Product Features:
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise 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.
Dorman – Ignition Lock Cylinder: Two Keys Included (Part No.926-059)
from
$68.99
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:
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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
Carquest Premium – Ignition Lock Cylinder (Part No.CSC1473)
from
$58.99
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:
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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.
Top Picks for 2003 Chevrolet Trailblazer Alternator Parts
Upgrade Chevrolet Trailblazers with top-quality Alternator Parts parts, including 7 OEM and aftermarket selections for your 2003 model.
Dorman – Alternator Pigtail (Part No.645-569)
from
$47.99
This alternator connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.
Product Features:
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Product Features:
- Direct replacement – this alternator connector matches the appearance and function of the factory hardware on specified applications
- Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
- Durable construction – this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Carquest Premium – Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (Part No.8290A)
from
$225.99
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:
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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
Carquest Standard – Alternator: Remanufactured, 150 Amps, 1 Year Limited Warranty (Part No.8290AV)
from
$180.99
Carquest Standard alternators are designed and built to meet original equipment (O.E.) specifications, while providing great value. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. All of our Carquest Standard alternators 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:
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Product Features:
- 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
Carquest Professional – Alternator: New, 150 Amps, Limited Lifetime Warranty (Part No.8290AN)
from
$290.99
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:
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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
Carquest Premium – Multi-Use Connector (Part No.PTA1117)
from
$44.99
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:
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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
GM Genuine Parts – Alternator: Remanufactured, 150 Amps, 2 Year Limited Warranty (Part No.321-2127)
from
$501.99
The remanufactured alternator with a robust 150-amp output and 12 VDC voltage is designed to deliver reliable power for your vehicle’s electrical system. Featuring a clockwise rotation direction and part of the trusted DELCO AD244 LN31 family, this alternator ensures compatibility and optimal performance. As an ACDelco GM Original Equipment part, it meets stringent GM specifications, offering the quality and dependability you expect. The remanufacturing process adheres to industry standards, reducing waste while restoring the alternator to peak functionality. Tested rigorously to guarantee consistent performance, this alternator is a durable and eco-friendly solution for maintaining your vehicle’s electrical needs.
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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
- Designed with a robust 150-amp output to provide reliable power for demanding vehicle electrical systems.
- Eco-friendly remanufacturing process reduces waste while restoring the alternator to peak functionality.
Bosch – Alternator: Remanufactured, 150 Amps, 2 Year Limited Warranty (Part No.AL8805X)
from
$236.99
The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for demanding automotive applications. Full-load tested to meet Bosch’s rigorous performance standards, this alternator ensures consistent power delivery with its 150-amp rating and 12 VDC output. Remanufactured to factory specifications using high-quality materials and advanced technology, it offers durability and long-lasting functionality. Unlike rebuilt units, Bosch’s remanufactured alternators undergo 100% factory testing to guarantee optimal operation. Designed for clockwise rotation, this alternator is built to handle the toughest conditions while maintaining peak efficiency. Whether you’re upgrading or replacing, this alternator provides unmatched value and dependable performance for your vehicle.
Product Features:
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Product Features:
- Full-load tested to guarantee compliance with Bosch’s strict performance specifications
- 100% factory tested, units are remanufactured (not rebuilt)
- Built to last – uses high quality materials and the most technologically advanced developments.
- Clockwise rotation design enhances compatibility and efficiency for seamless integration into your vehicle.
Top-Rated Alternators and Starters Brands For Your 2003 Chevrolet Trailblazer
Shop for the best-rated brands offering Alternators and Starters and other products for your 2003 Chevrolet Trailblazers. Below you’ll find some of our best rated Alternators and Starters from Carquest Premium and Dorman, and more. Alternators and Starters from these brands that fit a 2003 Trailblazer start at just $47.99 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 2003 Chevrolet Trailblazer Alternators and Starters
When it comes to maintaining or upgrading your 2003 Chevrolet Trailblazer, 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 2003 Chevrolet Trailblazer. With over 2 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 $219.99, with an average price of just $222.99. Plus, with over 35 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
$225.99
(2)
Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty
“Came with everything”
from
$219.99
(33)
Starter: Remanufactured, Limited Lifetime Warranty
“Put it in about a week ago and no issues”
Popular Dorman 2003 Chevrolet Trailblazer Alternators and Starters
Dorman auto parts is one of the highest quality Alternators and Starter brands in the market. Any 2003 Chevrolet Trailblazer owner should feel confident when installing genuine Dorman parts in their vehicle. To ensure the best fit and performance for your 2003 Trailblazer, Advance Auto Parts carries a full inventory of 2 Dorman Alternators and Starters. Plus you will be keeping your Chevrolet in peak condition while saving money because prices on these Dorman Alternators and Starters range from $47.99 to $149.99, plus, with more than 3 customer reviews and an impressive 4.2 stars average rating, you can be confident the Fram Alternators and Starters below will deliver on both quality and value.
FAQs for 2003 Chevrolet Trailblazer Alternators and Starters
Which Alternators and Starters are best-sellers for 2003 Chevrolet Trailblazers?
Out of 14 Alternators and Starters that fit 2003 Chevrolet Trailblazers, the following parts are the top sellers:
- Alternator: Remanufactured, 150 Amps, 1 Year Limited Warranty (10008874) – $180.99
- Alternator: New, 150 Amps, Limited Lifetime Warranty (10017987) – $290.99
- Multi-Use Connector (12447173) – $44.99
What’s the price range for 2003 Chevrolet Trailblazer Alternators and Starters?
Alternators and Starter prices for the 2003 Chevrolet Trailblazer start at $44.99 and go up to $501.99 for the most premium parts.
What’s the average price of a Alternators and Starter for a 2003 Chevrolet Trailblazer?
The average price for Alternators and Starters for the 2003 Chevrolet Trailblazer is $180.85. 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 Chevrolet Trailblazer model years?
What are the cheapest Alternators and Starters for my 2003 Chevrolet Trailblazer?
The cheapest 2003 Chevrolet Trailblazer Alternators and Starters we carry in stock are:
- Multi-Use Connector (12447173) – $44.99
- Alternator Pigtail (10717336) – $47.99
- Ignition Lock Cylinder (12526006) – $58.99
- Ignition Lock Cylinder: Two Keys Included (12180638) – $68.99
- Ignition Lock Housing (12560793) – $148.99
What are the top-rated Alternators and Starters that fit the 2003 Chevrolet Trailblazer?
Out of 76 reviews by customers, our 2003 Chevrolet Trailblazer Alternators and Starters have an average customer rating of . These are some of the highest-rated Alternators and Starter types for the 2003 Chevrolet Trailblazer and their top-rated products:
- Starter Parts
- Starter: Remanufactured, Limited Lifetime Warranty (15220146) – $219.99
- Alternator Parts
- Starter: Remanufactured, Limited Lifetime Warranty (15220146) – $219.99
- Ignition Lock Parts
- Starter: Remanufactured, Limited Lifetime Warranty (15220146) – $219.99
What types of Alternators and Starters do you sell for my 2003 Chevrolet Trailblazer?
As of 11/2/25, these are some of the most in-demand types of Alternators and Starters for a 2003 Chevrolet Trailblazer:
Can I get help with 2003 Chevrolet Trailblazer 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 Chevrolet Alternators and Starters and more.
What is your return policy for Chevrolet Trailblazer Alternators and Starters?
Advance Auto Parts keeps returns simple. For new Chevrolet Trailblazer Alternators and Starters and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
