1966 Triumph TR4A Differentials
Keep Your 1966 Triumph TR4A in Top Shape with Quality Differentials
Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1966 Triumph TR4A looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Bearings and Differential Pinion Seals. 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.
Competitive Prices and Extensive Inventory
The average price for a 1966 Triumph TR4A Differential at Advance Auto Parts is around $12.74, with a range that starts at $8.99 and goes up to $16.49. With 2 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Bearing Race and Differential Pinion Seal start at just $8.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Differential, don’t forget to check out other key components like Drive Shafts and Axles and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1966 Triumph TR4A in peak condition, inside and out.
Find Your Specific 1966 Triumph TR4A Differentials
Looking for the perfect Differential for your 1966 Triumph TR4A? You’re in the right place. Below, you’ll find links to various types of Differentials that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Differentials, ensuring durability and a precise fit for your Triumph TR4A. Whether you’re driving a 1966 model or another popular model year like
1965,
1967, and
1968, we’ve got you covered. Purchasing Differentials from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Differentials that fit your vehicle.
Essential 1966 Triumph TR4A Differentials
National – Bearing Race (Part No.LM29710)
from
$16.49
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
Product Features:
See More
Product Features:
- PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
- SMOOTH ROTATION – Crowned raceways for even load distribution
- OE-STYLE DESIGN – Engineered to meet OE specifications
- COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
- RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
National – Differential Pinion Seal (Part No.470487N)
from
$8.99
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
Product Features:
See More
Product Features:
- Design type: spring loaded; multi-lip
- Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
- Resistance to EP lubricants
- Low swell in hydrocarbon fluids
- Delivers quality and reliable performance for every type of repair
Popular 1966 Triumph TR4A Differentials Categories
Most Popular Differential Bearing for 1966 Triumph TR4As
Enhance your 1966 Triumph TR4A with this popular Differential Bearing we have in stock, for $16.49.
National – Bearing Race (Part No.LM29710)
from
$16.49
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
Product Features:
See More
Product Features:
- PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
- SMOOTH ROTATION – Crowned raceways for even load distribution
- OE-STYLE DESIGN – Engineered to meet OE specifications
- COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
- RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
Best-Selling 1966 Triumph TR4A Differential Pinion Seal
Upgrade your TR4A with our best-selling Differential Pinion Seal.
National – Differential Pinion Seal (Part No.470487N)
from
$8.99
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
Product Features:
See More
Product Features:
- Design type: spring loaded; multi-lip
- Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
- Resistance to EP lubricants
- Low swell in hydrocarbon fluids
- Delivers quality and reliable performance for every type of repair
FAQs for 1966 Triumph TR4A Differentials
What are the best-selling Differentials for 1966 Triumph TR4As?
Out of 2 Differentials that fit 1966 Triumph TR4As, the following parts are the top sellers:
- Bearing Race (15050148) – $16.49
- Differential Pinion Seal (18444061) – $8.99
What’s the price range for 1966 Triumph TR4A Differentials?
The prices of Differentials for the 1966 Triumph TR4A range from $8.99 up to $16.49 for the most premium parts.
What is the average price of a Differential for a 1966 Triumph TR4A?
The average price for Differentials for the 1966 Triumph TR4A is $12.74. Keep in mind the variety of part types within our Differential category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Differentials for other Triumph TR4A model years?
What are the cheapest Differentials for my 1966 Triumph TR4A?
The cheapest 1966 Triumph TR4A Differentials we carry are:
- Differential Pinion Seal (18444061) – $8.99
- Bearing Race (15050148) – $16.49
What types of Differentials do you sell for my 1966 Triumph TR4A?
As of 11/2/25, these are some of the most in-demand types of Differentials for a 1966 Triumph TR4A:
Can I get help with 1966 Triumph TR4A Differential orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Triumph Differentials and more.
What is your return policy for Triumph TR4A Differentials?
Advance Auto Parts keeps returns simple. For new Triumph TR4A Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.