2003 Infiniti Q45 Alternators and Starters
Find Your Specific 2003 Infiniti Q45 Alternators and Starters
Below you will find various in-demand Infiniti Alternators and Starters, components and accessories for your 2003 Q45. Advance Auto Parts has popular Q45 parts like Voltage Regulator Parts, Alternator Parts, Starter Parts and more. You’ll also find aftermarket and OEM Alternators and Starters for other Q45 model years including
1997,
1998,
1999,
2000,
2001,
2002,
2004,
2005,
2006 and more. Select a category of 2003 Infiniti Q45 Alternators and Starters below and start saving instantly.
Popular 2003 Infiniti Q45 Alternators and Starters Categories
Essential Alternators and Starters for 2003 Infiniti Q45s
Carquest Premium – Alternator: Remanufactured, 150 Amps (Part No.11316A)
from
$218.99
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
DENSO – Alternator (Part No.F4000688931ND)
from
$357.42
DENSO alternators are not only original equipment on many of the world’s top production cars; they are a favorite in motorsports as well, where their light weight, high efficiency, and durability under the most gruelling conditions make them the natural choice. Remanufactured DENSO alternators go through a gruelling process: Stators and rectifiers are tested to 300 volts, while rotors are submitted to 600 volts, all to ensure reliable performance. Rotor slip rings are buffed to an 8 micron surface finish, with run out limited to 20 microns, minimizing brush wear and abrasion. Bearings are validated to OE standards and loaded with premium OE-standard lubricants. New or remanufactured, a DENSO alternator is a quality component.
Product Features:
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Product Features:
- OE-Equivalent Direct Fit Application.
- Remanufactured using only OE Components.
- 29 performance and safety checks.
- Subjected to rigorous safety and performance tests.
- Tested to OE standards and re-packed with OE-grade lubricant.
- Provides exceptional reliability.
Carquest Premium – New Voltage Regulator (Part No.RAC1231)
from
$389.99
CARQUEST Voltage Regulators are engineered and created by an automotive charging system manufacturer designed to meet or exceed OEM specifications.
Product Features:
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Product Features:
- CARQUEST Voltage Regulators are designed to match OE fit, form and function. Fitted with critical OEM electronic components results in longer life expectancy.
- CARQUEST Voltage Regulators are mechanically designed with utilization of surface mount technology, robust mechanical housing, and consistent encapsulation to protect against moistures & vibration.
- CARQUEST Voltage Regulators uses surface mount technology and uniform encapsulation to protect against moistures & vibration.
- CARQUEST Voltage Regulators are 100% individually tested for all product functionalities that includes the proper voltage set-point, power capabilities, and other product specifications.
Carquest Premium – Voltage Regulator (Part No.RAA1198)
from
$344.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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National – Bearings (Part No.303-CC)
from
$26.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.
Product Features:
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Product Features:
- Premium bearing design matches OEM specifications
- Precision manufactured using premium-grade steel for outstanding durability and performance
- Controlled heat treating process for lasting performance and extended bearing life
- Industry leading coverage
- Professional technicians know they can depend on National
WAI – 1.7kW/12 Volt, CW, 8-Tooth Pinion (Part No.17180N)
from
$207.99
WAI is a leading parts manufacturer for the aftermarket. You’ll find superior quality and performance on all WAI 100% new alternators and starters as well as generators, motors, voltage regulators, rectifiers and other components.
Product Features:
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Product Features:
- Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
- Premium grade solenoids contains materials specifically selected for best conductivity. High temperature cap ensures that the solenoid works flawlessly in high heat environments. High dielectric strenght 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 Premium – Starter Remanufactured Premium (Part No.17696S)
from
$327.99
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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Bosch – Professional Preferred Starter, Remanufactured (Part No.F500027293BOS)
from
$171.53
Bosch has been a major supplier of new alternators and starters to OE vehicle manufacturers since 1913. Securing OE certification requires strict adherence to stringent precision and performance criteria. These same exacting criteria are also applied in the manufacturing of all Bosch aftermarket alternators and starters. Whether 100% remanufactured or new, Bosch Premium Alternators and Starters are quality built and 100% factory tested to ensure years of reliable performance, even under the most extreme operating conditions. That’s why they are preferred by more professional installers.
Product Features:
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Product Features:
- Built to last using the highest quality materials and the most technologically advanced manufacturing processes
- Remanufactured using more new parts than any other unit
- 100% exhaustive multipoint quality and performance testing throughout the remanufacturing process ensures optimum starting and charging performance under all operating conditions
- Every unit is full-load tested to guarantee compliance with Bosch strict performance specifications
- Solenoid with 100% new terminal hardware, contact face and high temperature cap, are completely disassembled and computer performance tested for pull/hold strength
- 100% new long life self-lubricating brushes
- Gear train all new bushings
- Drive with 100% new bushings, springs, rollers, washers caps and high temperature lubrication
- Gear train lubricated with OE-specified grease providing protection from – 4 0 ?F to +3 02 ?F
- Commutator remachined to Bosch tight tolerances
- Permanent magnets/field coils tested for field strength and shorts (replaced with new as required)
- Armature continuity tested, gauged, straightened and shimmed
- All electrical connections resoldered
- All shaft splines and load bearing surfaces lubricated with OE high temperature grade
DENSO – Starter (Part No.F5000305362ND)
from
$289.83
DENSO remanufactured starters are subjected to rigorous testing; Armatures and field coils are high-voltage tested; commutators are refinished and performance-validated; terminals and fasteners are replaced with high-quality copper components. Every starter is exactingly bench-tested to ensure factory-original performance.
Product Features:
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Product Features:
- High-voltage tested armature and field coils to ensure reliable performance
- Premium copper terminals to ensure a clean source of electrical current
- All-new bearings, brushes, and seals
- Maximum cranking torque under all conditions
- Class leaders in size and weight
- Environmentally designed to start in cold and hot weather conditions
Bosch – Premium 100% Remanufactured Starter (Part No.SR2270X)
from
$166.99
Bosch Premium Starters are designed, built and tested to provide the ultimate in performance and reliability.
Product Features:
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Product Features:
- Built for extremes! Our new and reman starters and alternators are 100% factory tested to ensure reliable performance, under extremes of heat, cold and high demand
- Our new and reman starters and alternators are designed to perform equal to or better than the original equipment parts, that they replace
- Our new and reman starters and alternators are designed to be identical in fit and performance to original equipment parts
- Our new and reman starters and alternators utilize the latest manufacturing technologies and highest quality parts to ensure the best performance and longest life
Carquest Premium – Starter Remanufactured Premium (Part No.17180S)
from
$25.00
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.
See More
Upgrade your 2003 Infiniti Q45 with Top-Quality Alternators and Starters
When it comes to maintaining or upgrading your 2003 Infiniti Q45, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Infiniti or enhancing its overall performance, Alternators and Starters are key to keeping your Q45 functioning at its best. At Advance Auto Parts, we offer a wide selection of 5 Alternators and Starters for the 2003 Infiniti Q45, designed to meet your needs without breaking the bank.
From
Voltage Regulator Part
replacements to
Alternator 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 Infiniti Q45 at great prices.
Our Alternators and Starters inventory for this model
ranges from just $26.49 to $676.13, with
an average price of $338.97.
Our 5 Alternators and Starters in stock come from 4 trusted brands, so you’re sure to find the right part for your 2003 Infiniti Q45 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 2003 Infiniti Q45 is always ready to roll. We’re committed to providing you with everything you need to keep your Q45 in top shape, all in one place.
Start shopping confidently below for your 2003 Infiniti Q45!
Best-Selling Voltage Regulator Parts for 2003 Infiniti Q45s
Enhance the driving experience in your Infiniti with 1 quality Voltage Regulator Part components, starting at $344.99.
Carquest Premium – Voltage Regulator (Part No.RAA1198)
from
$344.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More
Most Popular 2003 Infiniti Q45 Alternator Parts
Customize your Infiniti with 3 Alternator Parts products
like Alternators and
Drive End Bearings, all
priced under $676.13.
National – Bearings (Part No.303-CC)
from
$26.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.
Product Features:
See More
Product Features:
- Premium bearing design matches OEM specifications
- Precision manufactured using premium-grade steel for outstanding durability and performance
- Controlled heat treating process for lasting performance and extended bearing life
- Industry leading coverage
- Professional technicians know they can depend on National
Hitachi – Alternator (Part No.F4000740899HIT)
from
$676.13
Alternator
DENSO – Alternator (Part No.F4000688931ND)
from
$357.42
DENSO alternators are not only original equipment on many of the world’s top production cars; they are a favorite in motorsports as well, where their light weight, high efficiency, and durability under the most gruelling conditions make them the natural choice. Remanufactured DENSO alternators go through a gruelling process: Stators and rectifiers are tested to 300 volts, while rotors are submitted to 600 volts, all to ensure reliable performance. Rotor slip rings are buffed to an 8 micron surface finish, with run out limited to 20 microns, minimizing brush wear and abrasion. Bearings are validated to OE standards and loaded with premium OE-standard lubricants. New or remanufactured, a DENSO alternator is a quality component.
Product Features:
See More
Product Features:
- OE-Equivalent Direct Fit Application.
- Remanufactured using only OE Components.
- 29 performance and safety checks.
- Subjected to rigorous safety and performance tests.
- Tested to OE standards and re-packed with OE-grade lubricant.
- Provides exceptional reliability.
Top Picks for 2003 Infiniti Q45 Starter Parts
Upgrade Infiniti Q45s with top-quality Starter Parts parts, including 1 OEM and aftermarket selections for your 2003 model.
DENSO – Starter (Part No.F5000305362ND)
from
$289.83
DENSO remanufactured starters are subjected to rigorous testing; Armatures and field coils are high-voltage tested; commutators are refinished and performance-validated; terminals and fasteners are replaced with high-quality copper components. Every starter is exactingly bench-tested to ensure factory-original performance.
Product Features:
See More
Product Features:
- High-voltage tested armature and field coils to ensure reliable performance
- Premium copper terminals to ensure a clean source of electrical current
- All-new bearings, brushes, and seals
- Maximum cranking torque under all conditions
- Class leaders in size and weight
- Environmentally designed to start in cold and hot weather conditions
FAQs for 2003 Infiniti Q45 Alternators and Starters
Which Alternators and Starters are best-sellers for 2003 Infiniti Q45s?
Out of 5 Alternators and Starters that fit 2003 Infiniti Q45s, the following parts are the top sellers:
- Bearings (3273628) – $26.49
- Voltage Regulator (12521223) – $344.99
- Starter (11868607) – $289.83
What’s the price range for 2003 Infiniti Q45 Alternators and Starters?
Alternators and Starter prices for the 2003 Infiniti Q45 start at $26.49 and go up to $676.13 for the most premium parts.
What’s the average price of a Alternators and Starter for a 2003 Infiniti Q45?
The average price for Alternators and Starters for the 2003 Infiniti Q45 is $338.97. 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 Infiniti Q45 model years?
What are the cheapest Alternators and Starters for my 2003 Infiniti Q45?
The cheapest 2003 Infiniti Q45 Alternators and Starters we carry in stock are:
- Bearings (3273628) – $26.49
- Starter (11868607) – $289.83
- Voltage Regulator (12521223) – $344.99
- Alternator (11868552) – $357.42
- Alternator (12590471) – $676.13
What types of Alternators and Starters do you sell for my 2003 Infiniti Q45?
As of 2/5/25, these are some of the most in-demand types of Alternators and Starters for a 2003 Infiniti Q45:
Can I get help with 2003 Infiniti Q45 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 Infiniti Alternators and Starters and more.
What is your return policy for Infiniti Q45 Alternators and Starters?
Advance Auto Parts keeps returns simple. For new Infiniti Q45 Alternators and Starters and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
