1977 Triumph TR7 Alternator Parts

Keep Your 1977 Triumph TR7 in Top Shape with Quality Alternator Parts

Whether you’re repairing or upgrading your Alternator Part, using high-quality parts is key to keeping your 1977 Triumph TR7 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Commutator End Bearings and Alternators. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Alternator Parts from Trusted Brands

Looking for a reliable Alternator Part? We’ve got you covered with options from brands you know and trust like DriveWorks. For example, DriveWorks Alternator Parts start at just $13.49 with an average 4.3 star rating. With over 14 reviews and a solid 5 star average, you can shop with confidence knowing other Triumph TR7 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1977 Triumph TR7 Alternator Part at Advance Auto Parts is around $104.49, with a range that starts at $13.49 and goes up to $165.99. With 3 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Alternator: Remanufactured, 55 Amps, Limited Lifetime Warranty and Lucas Ir/Ef 36 Amp/12 Volt, Cw, W/O Pulley, Limited Lifetime Warranty start at just $133.99 and offer a great balance of form and function.

Essential 1977 Triumph TR7 Alternator Parts

Driveworks – Ball Bearing (Part No.SL-203-FF)

Ball Bearing

from

$13.49
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Carquest Premium – Alternator: Remanufactured, 55 Amps, Limited Lifetime Warranty (Part No.14085A)

Alternator: Remanufactured, 55 Amps, Limited Lifetime Warranty

from

$133.99
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:


    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
See More

WAI – Lucas Ir/Ef 36 Amp/12 Volt, Cw, W/O Pulley, Limited Lifetime Warranty (Part No.14030N)

Lucas Ir/Ef 36 Amp/12 Volt, Cw, W/O Pulley, Limited Lifetime Warranty

from

$165.99
This 36-amp alternator from WAI is engineered to deliver exceptional performance and reliability, making it a top choice for aftermarket replacements. Designed to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. The advanced voltage regulator protection safeguards against transient voltage spikes, preventing potential battery damage, while its low saturation voltage minimizes heat dissipation for enhanced durability. Featuring a high-power rectifier assembly with open junction press-fit diodes, this alternator is built to run cooler and more efficiently. Each unit is rigorously tested, and a printed copy of the test results is included, giving you confidence in its performance from the moment it powers on. With WAI’s commitment to quality, this alternator offers long-lasting value and dependable operation for your vehicle.

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.
  • Rigorously tested for exceptional performance and reliability, ensuring long-lasting value and dependable operation for your vehicle.
See More

Most Popular Commutator End Bearing for 1977 Triumph TR7s

Enhance your 1977 Triumph TR7 with this popular Commutator End Bearing we have in stock, for $13.49.

Driveworks – Ball Bearing (Part No.SL-203-FF)

Ball Bearing

from

$13.49
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Best-Selling 1977 Triumph TR7 Alternators

Upgrade your TR7 with one of our 2 best-selling Alternators.

WAI – Lucas Ir/Ef 36 Amp/12 Volt, Cw, W/O Pulley, Limited Lifetime Warranty (Part No.14030N)

Lucas Ir/Ef 36 Amp/12 Volt, Cw, W/O Pulley, Limited Lifetime Warranty

from

$165.99
This 36-amp alternator from WAI is engineered to deliver exceptional performance and reliability, making it a top choice for aftermarket replacements. Designed to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. The advanced voltage regulator protection safeguards against transient voltage spikes, preventing potential battery damage, while its low saturation voltage minimizes heat dissipation for enhanced durability. Featuring a high-power rectifier assembly with open junction press-fit diodes, this alternator is built to run cooler and more efficiently. Each unit is rigorously tested, and a printed copy of the test results is included, giving you confidence in its performance from the moment it powers on. With WAI’s commitment to quality, this alternator offers long-lasting value and dependable operation for your vehicle.

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.
  • Rigorously tested for exceptional performance and reliability, ensuring long-lasting value and dependable operation for your vehicle.
See More

Carquest Premium – Alternator: Remanufactured, 55 Amps, Limited Lifetime Warranty (Part No.14085A)

Alternator: Remanufactured, 55 Amps, Limited Lifetime Warranty

from

$133.99
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:


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
See More

Top-Rated Alternator Part Brands For Your 1977 Triumph TR7

When it comes to finding the perfect Alternator Part for your 1977 Triumph TR7, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Alternator Part brands including DriveWorks, and more, all known for their exceptional customer ratings (average brand rating of 4.3 stars) and competitive prices, as low as $13.49. Purchasing a Alternator Part from us here at Advance Auto Parts is a smart move for both you and your 1977 Triumph TR7, providing peace of mind with parts that meet or exceed OEM standards.

Popular DriveWorks 1977 Triumph TR7 Alternator Parts

If you’re looking for a top-quality Alternator Part for your 1977 Triumph TR7, Advance Auto Parts has exactly what you need with our selection of DriveWorks Alternator Parts. We have 1 DriveWorks Alternator Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $13.49, you’ll find the perfect Alternator Part for your needs and budget. DriveWorks Alternator Parts for the 1977 Triumph TR7 come highly rated, with over 7 customer reviews and an impressive average rating of 4.3 stars. Choosing a DriveWorks Alternator Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Ball Bearing
from $13.49
(7)
Ball Bearing
“fit great”

FAQs for 1977 Triumph TR7 Alternator Parts

What are the best-selling Alternator Parts for 1977 Triumph TR7s?

Out of 3 Alternator Parts that fit 1977 Triumph TR7s, the following parts are the top sellers:

What’s the price range for 1977 Triumph TR7 Alternator Parts?

The prices of Alternator Parts for the 1977 Triumph TR7 range from $13.49 up to $165.99 for the most premium parts.

What is the average price of an Alternator Part for a 1977 Triumph TR7?

The average price for Alternator Parts for the 1977 Triumph TR7 is $104.49. Keep in mind the variety of part types within our Alternator Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Alternator Parts for other Triumph TR7 model years?

Yes, we carry Alternator Parts for 5 model years of Triumph TR7s between 1975 and 1981. The following model years are the most popular for Alternator Part purchases: 1981, 1980, 1979, 1978, 1976, and 1975.

What are the cheapest Alternator Parts for my 1977 Triumph TR7?

The cheapest 1977 Triumph TR7 Alternator Parts we carry are:

What are the top-rated Alternator Parts that fit the 1977 Triumph TR7?

The one 1977 Triumph TR7 Alternator Part we have in stock is the Ball Bearing. It is rated 4.5 stars and costs $13.49.

What types of Alternator Parts do you sell for my 1977 Triumph TR7?

As of 11/2/25, these are some of the most in-demand types of Alternator Parts for a 1977 Triumph TR7:

Can I get help with 1977 Triumph TR7 Alternator Part orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Triumph Alternator Parts and more.

What is your return policy for Triumph TR7 Alternator Parts?

Advance Auto Parts keeps returns simple. For new Triumph TR7 Alternator Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.