1977 Jaguar XJ12 Alternators and Starters
Find Your Specific 1977 Jaguar XJ12 Alternators and Starters
Below you will find various in-demand Jaguar Alternators and Starters, components and accessories for your 1977 XJ12. Advance Auto Parts has popular XJ12 parts like Alternator Parts Voltage Regulator Parts and more. You’ll also find aftermarket and OEM Alternators and Starters for other XJ12 model years including
1976,
1978,
1979,
1994,
1995,
1996 and more. Select a category of 1977 Jaguar XJ12 Alternators and Starters below and start saving instantly.
Popular 1977 Jaguar XJ12 Alternators and Starters Categories
Essential Alternators and Starters for 1977 Jaguar XJ12s
WAI – Lucas Ir/Ef 70 Amp/12 Volt, Cw, 1-Groove Pulley, Limited Lifetime Warranty (Part No.14054N)
from
$159.99
This 70-amp alternator from WAI is a premium choice for reliable performance and durability. Engineered to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. The advanced voltage regulator protection guards against transient voltage spikes, preventing potential battery damage, while its low saturation voltage minimizes heat dissipation for enhanced efficiency. The high-power rectifier assembly, equipped with open junction press-fit diodes, keeps the unit running cool even under demanding conditions. Fully compliant with ECU communication, this alternator is designed to integrate seamlessly with your vehicle’s system. Each unit comes with a printed copy of test results, giving you confidence in its performance from the very first use. Built for long-lasting dependability, this alternator delivers exceptional value for your vehicle’s electrical system.
Product Features:
See More
Product Features:
- Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
- Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
- High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
- Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
- Designed for long-lasting dependability, this alternator ensures exceptional value and reliable performance for your vehicle’s electrical system.
Carquest Premium – Alternator: Remanufactured, 120 Amps, Limited Lifetime Warranty (Part No.13690A)
from
$306.99
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 Premium – Voltage Regulator (Part No.RAC3671)
from
$97.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.
Product Features:
See More
Product Features:
- Application matched components ensure the charging system can be returned to like new condition.
Upgrade your 1977 Jaguar XJ12 with Top-Quality Alternators and Starters
When it comes to maintaining or upgrading your 1977 Jaguar XJ12, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Jaguar or enhancing its overall performance, Alternators and Starters are key to keeping your XJ12 functioning at its best. At Advance Auto Parts, we offer a wide selection of 2 Alternators and Starters for the 1977 Jaguar XJ12, designed to meet your needs without breaking the bank.
From
Alternator Part
replacements to
Voltage Regulator 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 1977 Jaguar XJ12 at great prices.
Our Alternators and Starters inventory for this model
ranges from just $97.99 to $159.99, with
an average price of $128.99.
Our 2 Alternators and Starters in stock come from 2 trusted brands, so you’re sure to find the right part for your 1977 Jaguar XJ12 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, Fluids and Chemicals
and more to make sure your 1977 Jaguar XJ12 is always ready to roll. We’re committed to providing you with everything you need to keep your XJ12 in top shape, all in one place.
Start shopping confidently below for your 1977 Jaguar XJ12!
Best-Selling Alternator Parts for 1977 Jaguar XJ12s
Enhance the driving experience in your Jaguar with 1 quality Alternator Part components, starting at $159.99.
WAI – Lucas Ir/Ef 70 Amp/12 Volt, Cw, 1-Groove Pulley, Limited Lifetime Warranty (Part No.14054N)
from
$159.99
This 70-amp alternator from WAI is a premium choice for reliable performance and durability. Engineered to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. The advanced voltage regulator protection guards against transient voltage spikes, preventing potential battery damage, while its low saturation voltage minimizes heat dissipation for enhanced efficiency. The high-power rectifier assembly, equipped with open junction press-fit diodes, keeps the unit running cool even under demanding conditions. Fully compliant with ECU communication, this alternator is designed to integrate seamlessly with your vehicle’s system. Each unit comes with a printed copy of test results, giving you confidence in its performance from the very first use. Built for long-lasting dependability, this alternator delivers exceptional value for your vehicle’s electrical system.
Product Features:
See More
Product Features:
- Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
- Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
- High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
- Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
- Designed for long-lasting dependability, this alternator ensures exceptional value and reliable performance for your vehicle’s electrical system.
Most Popular 1977 Jaguar XJ12 Voltage Regulator Parts
Customize your Jaguar with 1 Voltage Regulator Parts products
like Voltage Regulators, all
priced under $97.99.
Carquest Premium – Voltage Regulator (Part No.RAC3671)
from
$97.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.
Product Features:
See More
Product Features:
- Application matched components ensure the charging system can be returned to like new condition.
FAQs for 1977 Jaguar XJ12 Alternators and Starters
Which Alternators and Starters are best-sellers for 1977 Jaguar XJ12s?
Out of 2 Alternators and Starters that fit 1977 Jaguar XJ12s, the following parts are the top sellers:
- Lucas Ir/Ef 70 Amp/12 Volt, Cw, 1-Groove Pulley, Limited Lifetime Warranty (12181353) – $159.99
- Voltage Regulator (50043967) – $97.99
What’s the price range for 1977 Jaguar XJ12 Alternators and Starters?
Alternators and Starter prices for the 1977 Jaguar XJ12 start at $97.99 and go up to $159.99 for the most premium parts.
What’s the average price of a Alternators and Starter for a 1977 Jaguar XJ12?
The average price for Alternators and Starters for the 1977 Jaguar XJ12 is $128.99. 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 Jaguar XJ12 model years?
What are the cheapest Alternators and Starters for my 1977 Jaguar XJ12?
The cheapest 1977 Jaguar XJ12 Alternators and Starters we carry in stock are:
- Voltage Regulator (50043967) – $97.99
- Lucas Ir/Ef 70 Amp/12 Volt, Cw, 1-Groove Pulley, Limited Lifetime Warranty (12181353) – $159.99
What types of Alternators and Starters do you sell for my 1977 Jaguar XJ12?
As of 11/2/25, these are some of the most in-demand types of Alternators and Starters for a 1977 Jaguar XJ12:
Can I get help with 1977 Jaguar XJ12 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 Jaguar Alternators and Starters and more.
What is your return policy for Jaguar XJ12 Alternators and Starters?
Advance Auto Parts keeps returns simple. For new Jaguar XJ12 Alternators and Starters and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
