1966 International CO4000 Transtar Spark Plugs

Keep Your 1966 International CO4000 Transtar in Top Shape with Quality Spark Plugs

Whether you’re repairing or upgrading your Spark Plug, using high-quality parts is key to keeping your 1966 International CO4000 Transtar looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Spark Plugs. 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 Spark Plugs from Trusted Brands

Looking for a reliable Spark Plug? We’ve got you covered with options from brands you know and trust like Champion. For example, Champion Spark Plugs start at just $3.29 with an average 4.7 star rating. With over 40 reviews and a solid 5 star average, you can shop with confidence knowing other International CO4000 Transtar owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1966 International CO4000 Transtar Spark Plug at Advance Auto Parts is around $3.29, with a range that starts at $2.49 and goes up to $3.99. With 6 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Copper Plus Spark Plug (RJ6C): Dependable Performance & Durability start at just $2.49 and offer a great balance of form and function.

Essential 1966 International CO4000 Transtar Spark Plugs

Champion – Copper Plus Spark Plug (RJ6C): Dependable Performance & Durability (Part No.102)

Copper Plus Spark Plug (RJ6C): Dependable Performance & Durability

from

$2.49
Copper Plus spark plug RJ6C delivers dependable performance and durability, making it an ideal choice for maintaining your vehicle’s efficiency. Featuring a copper core center electrode, it ensures precise heat control and enhanced conductivity, promoting longer life and consistent wear. The nickel-tipped center and ground electrodes provide superior corrosion resistance, ensuring reliable ignition performance over time. Designed as a standard replacement, this spark plug meets ISO and SAE Standards, guaranteeing proven performance and compatibility with a wide range of vehicles. Its flat seat type and built-in resistor further enhance its functionality, making it a trusted solution for optimal engine operation.

Product Features:
  • Copper Plus – Dependable Performance and Durability
  • Copper core center electrode allows for accurate control of heat range for longer life
  • Superior corrosion resistance
  • Built to ISO and SAE standards for proven performance
  • Built to ISO and SAE standards for proven performance
See More

Champion – Copper Plus Spark Plug (J6C): Dependable Performance & Durability (Part No.823-1)

Copper Plus Spark Plug (J6C): Dependable Performance & Durability

from

$3.99
Copper Plus spark plug delivers dependable performance and durability, making it an ideal choice for maintaining your vehicle’s efficiency. Featuring a copper core center electrode, it ensures precise heat control for extended lifespan and consistent wear. The nickel-tipped center and ground electrodes enhance conductivity while resisting fouling, ensuring reliable ignition under various conditions. Designed as an OE-type replacement, this spark plug meets ISO and SAE Standards, guaranteeing proven performance and compatibility with a wide range of vehicles. Its flat seat design and superior corrosion resistance further contribute to its reliability, making it a cost-effective solution for long-term use.

Product Features:
  • Resists fouling
  • Superior corrosion resistance
  • Dependable and proven performance
  • Increased conductivity and heat control for good overall wear
See More

Champion – Copper Plus Small Engine Spark Plug (J8C): Dependable Performance & Durability (Part No.841)

Copper Plus Small Engine Spark Plug (J8C): Dependable Performance & Durability

from

$3.79
The Copper Plus spark plug is engineered for dependable performance and durability, making it an ideal OE-type replacement for small engines. Featuring a copper core center electrode, it ensures precise heat control and increased conductivity, promoting longer life and consistent wear. Its nickel center and ground electrode tips, combined with a flat seat design, deliver enhanced reliability and superior performance. Built to ISO and SAE Standards, this spark plug resists fouling and offers exceptional corrosion resistance, ensuring it withstands tough conditions. Whether you’re maintaining a small engine or seeking a reliable replacement, this spark plug provides proven performance and value.

Product Features:
  • Copper Plus – Dependable Performance and Durability
  • OE type replacement plug
  • Resists fouling
  • Copper core center electrode allows for accurate control of heat range for longer life
  • Superior corrosion resistance
  • Built to ISO and SAE standards for proven performance
  • Increased Conductivity and Heat Control: The Champion Copper Plus Small Engine Spark Plug features a copper core electrode that enhances conductivity and heat management, ensuring good overall wear.
  • Enhanced Reliability: With a nickel center electrode tip material and flat seat type, this spark plug provides enhanced reliability and consistent performance for small engines.
See More

Champion – Copper Plus Spark Plug (RJ8C): Dependable Performance & Durability (Part No.871)

Copper Plus Spark Plug (RJ8C): Dependable Performance & Durability

from

$2.49
The Copper Plus spark plug is engineered for dependable performance and durability, making it an ideal OE-type replacement. Featuring a copper core center electrode, it ensures precise heat control and enhanced conductivity, promoting longer life and consistent wear. Its nickel-tipped center and ground electrodes resist fouling and provide superior corrosion resistance, ensuring reliable ignition under various conditions. Built to ISO and SAE Standards, this spark plug delivers proven performance and compatibility with standard replacement needs. The flat seat design and integrated resistor further enhance its functionality, making it a trusted choice for maintaining engine efficiency and reliability.

Product Features:
  • Resists fouling
  • Superior corrosion resistance
  • Dependable and proven performance
  • Increased conductivity and heat control for good overall wear
See More

Champion – Copper Plus Small Engine Spark Plug (J8C): Dependable Performance & Durability (Part No.841-1)

Copper Plus Small Engine Spark Plug (J8C): Dependable Performance & Durability

from

$3.79
Copper Plus spark plug delivers reliable performance and durability, making it an ideal choice for small engines. Featuring a copper core center electrode, it ensures precise heat control and enhanced conductivity, promoting longer life and consistent wear. Built to ISO and SAE Standards, this OE-type replacement plug resists fouling and offers superior corrosion resistance, ensuring dependable operation in various conditions. The nickel-tipped center and ground electrodes further enhance its durability and performance, while the flat seat design ensures a secure fit. Whether you’re maintaining your equipment or replacing worn-out parts, this spark plug provides exceptional value with its proven performance and robust construction.

Product Features:
  • Resists fouling
  • Superior corrosion resistance
  • Dependable and proven performance
  • Increased conductivity and heat control for good overall wear
See More

Champion – Copper Plus Spark Plug (J6C): Dependable Performance & Durability (Part No.823)

Copper Plus Spark Plug (J6C): Dependable Performance & Durability

from

$3.29
The Copper Plus spark plug is engineered for dependable performance and durability, making it an ideal OE-type replacement. Featuring a copper core center electrode, it ensures precise heat control for extended lifespan and consistent wear. Its nickel-tipped center and ground electrodes enhance conductivity while resisting fouling, ensuring reliable ignition under various conditions. Built to ISO and SAE Standards, this spark plug delivers proven performance and superior corrosion resistance, making it a trusted choice for maintaining engine efficiency. With a flat seat type and standard-grade design, it offers compatibility with a wide range of applications, providing excellent value for long-term use.

Product Features:
  • Resists fouling
  • Superior corrosion resistance
  • Dependable and proven performance
  • Increased conductivity and heat control for good overall wear
See More

Most Popular Spark Plugs for 1966 International CO4000 Transtars

Enhance your 1966 International CO4000 Transtar with one of the 6 Spark Plugs we have in stock, starting at just $2.49.

Champion – Copper Plus Small Engine Spark Plug (J8C): Dependable Performance & Durability (Part No.841)

Copper Plus Small Engine Spark Plug (J8C): Dependable Performance & Durability

from

$3.79
The Copper Plus spark plug is engineered for dependable performance and durability, making it an ideal OE-type replacement for small engines. Featuring a copper core center electrode, it ensures precise heat control and increased conductivity, promoting longer life and consistent wear. Its nickel center and ground electrode tips, combined with a flat seat design, deliver enhanced reliability and superior performance. Built to ISO and SAE Standards, this spark plug resists fouling and offers exceptional corrosion resistance, ensuring it withstands tough conditions. Whether you’re maintaining a small engine or seeking a reliable replacement, this spark plug provides proven performance and value.

Product Features:
  • Copper Plus – Dependable Performance and Durability
  • OE type replacement plug
  • Resists fouling
  • Copper core center electrode allows for accurate control of heat range for longer life
  • Superior corrosion resistance
  • Built to ISO and SAE standards for proven performance
  • Increased Conductivity and Heat Control: The Champion Copper Plus Small Engine Spark Plug features a copper core electrode that enhances conductivity and heat management, ensuring good overall wear.
  • Enhanced Reliability: With a nickel center electrode tip material and flat seat type, this spark plug provides enhanced reliability and consistent performance for small engines.
See More

Champion – Copper Plus Spark Plug (J6C): Dependable Performance & Durability (Part No.823)

Copper Plus Spark Plug (J6C): Dependable Performance & Durability

from

$3.29
The Copper Plus spark plug is engineered for dependable performance and durability, making it an ideal OE-type replacement. Featuring a copper core center electrode, it ensures precise heat control for extended lifespan and consistent wear. Its nickel-tipped center and ground electrodes enhance conductivity while resisting fouling, ensuring reliable ignition under various conditions. Built to ISO and SAE Standards, this spark plug delivers proven performance and superior corrosion resistance, making it a trusted choice for maintaining engine efficiency. With a flat seat type and standard-grade design, it offers compatibility with a wide range of applications, providing excellent value for long-term use.

Product Features:
  • Resists fouling
  • Superior corrosion resistance
  • Dependable and proven performance
  • Increased conductivity and heat control for good overall wear
See More

Champion – Copper Plus Small Engine Spark Plug (J8C): Dependable Performance & Durability (Part No.841-1)

Copper Plus Small Engine Spark Plug (J8C): Dependable Performance & Durability

from

$3.79
Copper Plus spark plug delivers reliable performance and durability, making it an ideal choice for small engines. Featuring a copper core center electrode, it ensures precise heat control and enhanced conductivity, promoting longer life and consistent wear. Built to ISO and SAE Standards, this OE-type replacement plug resists fouling and offers superior corrosion resistance, ensuring dependable operation in various conditions. The nickel-tipped center and ground electrodes further enhance its durability and performance, while the flat seat design ensures a secure fit. Whether you’re maintaining your equipment or replacing worn-out parts, this spark plug provides exceptional value with its proven performance and robust construction.

Product Features:
  • Resists fouling
  • Superior corrosion resistance
  • Dependable and proven performance
  • Increased conductivity and heat control for good overall wear
See More

Champion – Copper Plus Spark Plug (RJ8C): Dependable Performance & Durability (Part No.871)

Copper Plus Spark Plug (RJ8C): Dependable Performance & Durability

from

$2.49
The Copper Plus spark plug is engineered for dependable performance and durability, making it an ideal OE-type replacement. Featuring a copper core center electrode, it ensures precise heat control and enhanced conductivity, promoting longer life and consistent wear. Its nickel-tipped center and ground electrodes resist fouling and provide superior corrosion resistance, ensuring reliable ignition under various conditions. Built to ISO and SAE Standards, this spark plug delivers proven performance and compatibility with standard replacement needs. The flat seat design and integrated resistor further enhance its functionality, making it a trusted choice for maintaining engine efficiency and reliability.

Product Features:
  • Resists fouling
  • Superior corrosion resistance
  • Dependable and proven performance
  • Increased conductivity and heat control for good overall wear
See More

Champion – Copper Plus Spark Plug (J6C): Dependable Performance & Durability (Part No.823-1)

Copper Plus Spark Plug (J6C): Dependable Performance & Durability

from

$3.99
Copper Plus spark plug delivers dependable performance and durability, making it an ideal choice for maintaining your vehicle’s efficiency. Featuring a copper core center electrode, it ensures precise heat control for extended lifespan and consistent wear. The nickel-tipped center and ground electrodes enhance conductivity while resisting fouling, ensuring reliable ignition under various conditions. Designed as an OE-type replacement, this spark plug meets ISO and SAE Standards, guaranteeing proven performance and compatibility with a wide range of vehicles. Its flat seat design and superior corrosion resistance further contribute to its reliability, making it a cost-effective solution for long-term use.

Product Features:
  • Resists fouling
  • Superior corrosion resistance
  • Dependable and proven performance
  • Increased conductivity and heat control for good overall wear
See More

Champion – Copper Plus Spark Plug (RJ6C): Dependable Performance & Durability (Part No.102)

Copper Plus Spark Plug (RJ6C): Dependable Performance & Durability

from

$2.49
Copper Plus spark plug RJ6C delivers dependable performance and durability, making it an ideal choice for maintaining your vehicle’s efficiency. Featuring a copper core center electrode, it ensures precise heat control and enhanced conductivity, promoting longer life and consistent wear. The nickel-tipped center and ground electrodes provide superior corrosion resistance, ensuring reliable ignition performance over time. Designed as a standard replacement, this spark plug meets ISO and SAE Standards, guaranteeing proven performance and compatibility with a wide range of vehicles. Its flat seat type and built-in resistor further enhance its functionality, making it a trusted solution for optimal engine operation.

Product Features:
  • Copper Plus – Dependable Performance and Durability
  • Copper core center electrode allows for accurate control of heat range for longer life
  • Superior corrosion resistance
  • Built to ISO and SAE standards for proven performance
  • Built to ISO and SAE standards for proven performance
See More

Top-Rated Spark Plug Brands For Your 1966 International CO4000 Transtar

When it comes to finding the perfect Spark Plug for your 1966 International CO4000 Transtar, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 1 trusted brands. We carry the most popular Spark Plug brands including Champion, and more, all known for their exceptional customer ratings (average brand rating of 4.7 stars) and competitive prices, as low as $3.29. Purchasing a Spark Plug from us here at Advance Auto Parts is a smart move for both you and your 1966 International CO4000 Transtar, providing peace of mind with parts that meet or exceed OEM standards.

Popular Champion 1966 International CO4000 Transtar Spark Plugs

If you’re looking for a top-quality Spark Plug for your 1966 International CO4000 Transtar, Advance Auto Parts has exactly what you need with our selection of Champion Spark Plugs. We have 3 Champion Spark Plugs in stock for this fitment, all known for their durability and precision fit. With prices starting at just $3.29 and an average cost of $3.62, you’ll find the perfect Spark Plug for your needs and budget. Champion Spark Plugs for the 1966 International CO4000 Transtar come highly rated, with over 15 customer reviews and an impressive average rating of 4.7 stars. Choosing a Champion Spark Plug from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Copper Plus Small Engine Spark Plug (J8C): Dependable Performance & Durability
from $3.79
(13)
Copper Plus Small Engine Spark Plug (J8C): Dependable Performance & Durability
“Bought it for a Troy-Built Tomahawk chipper.”
Copper Plus Small Engine Spark Plug (J8C): Dependable Performance & Durability
from $3.79
(1)
Copper Plus Small Engine Spark Plug (J8C): Dependable Performance & Durability
“Only Advance carried this hard to find plug. It works as it should.”

FAQs for 1966 International CO4000 Transtar Spark Plugs

What are the best-selling Spark Plugs for 1966 International CO4000 Transtars?

Out of 6 Spark Plugs that fit 1966 International CO4000 Transtars, the following parts are the top sellers:

What’s the price range for 1966 International CO4000 Transtar Spark Plugs?

The prices of Spark Plugs for the 1966 International CO4000 Transtar range from $2.49 up to $3.99 for the most premium parts.

What is the average price of a Spark Plug for a 1966 International CO4000 Transtar?

The average price for Spark Plugs for the 1966 International CO4000 Transtar is $3.29. Keep in mind the variety of part types within our Spark Plug category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Spark Plugs for other International CO4000 Transtar model years?

Yes, we carry Spark Plugs for 2 model years of International CO4000 Transtars between 1965 and 1968. The following model years are the most popular for Spark Plug purchases: 1968, 1967, and 1965.

What are the cheapest Spark Plugs for my 1966 International CO4000 Transtar?

Does Advance Auto Parts sell Spark Plugs for any other 1966 International models?

Yes. We stock Spark Plugs for 11 other popular 1966 International models. Some of the most popular are 1966 Scout Spark Plugs, 1966 M1100 Spark Plugs, 1966 M1200 Spark Plugs, 1966 M1400 Spark Plugs, and 1966 M800 Spark Plugs.

What are the top-rated Spark Plugs that fit the 1966 International CO4000 Transtar?

The one 1966 International CO4000 Transtar Spark Plug we have in stock is the Copper Plus Spark Plug (RJ8C): Dependable Performance & Durability. It is rated 5 stars and costs $2.49.

What types of Spark Plugs do you sell for my 1966 International CO4000 Transtar?

We currently have just 1 Spark Plug in stock for a 1966 International CO4000 Transtar, and as of 11/2/25, it is a Spark Plug.

Can I get help with 1966 International CO4000 Transtar Spark Plug orders?

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

What is your return policy for International CO4000 Transtar Spark Plugs?

Advance Auto Parts keeps returns simple. For new International CO4000 Transtar Spark Plugs and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.