1946 Morgan 4/4 Series I Spark Plugs

Keep Your 1946 Morgan 4/4 Series I 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 1946 Morgan 4/4 Series I 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 and Autolite. For example, Champion Spark Plugs start at just $3.79 with an average 4.7 star rating. Autolite offer similar pricing and quality, backed by strong customer feedback. With over 3 reviews and a solid 5 star average, you can shop with confidence knowing other Morgan 4/4 Series I owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1946 Morgan 4/4 Series I Spark Plug at Advance Auto Parts is around $4.19, with a range that starts at $3.79 and goes up to $4.99. With 4 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Copper Non-Resistor Spark Plug: Quick Starts & Reliable Power and Conventional Nickel Tip Copper Core Spark Plug: Enhances Heat Transfer & Durability start at just $3.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Spark Plug, don’t forget to check out other key components like Ignition Kits. At Advance Auto Parts, we’re here to help you keep your 1946 Morgan 4/4 Series I in peak condition, inside and out.

Essential 1946 Morgan 4/4 Series I Spark Plugs

Autolite – Copper Non-Resistor Spark Plug: Quick Starts & Reliable Power (Part No.275)

Copper Non-Resistor Spark Plug: Quick Starts & Reliable Power

from

$3.99
Autolite Copper spark plugs are designed to provide reliable performance and quick starts, ensuring your vehicle meets its power demands. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, enhancing overall efficiency. The high nickel alloy center and ground electrodes are engineered for extended life, while the mid-projection design ensures optimal ignition performance. Built with a high alumina multi-rib ceramic insulator, these plugs offer superior thermal conductivity and insulation, boosting strength and reliability. The nickel-plated shell resists corrosion, ensuring durability even under demanding conditions. With a flat seat type and regular grade construction, these spark plugs are a dependable choice for maintaining consistent engine performance.

Product Features:
  • The copper core center electrode aids in thermal control and improves resistance to fouling.
  • Its specially engineered high nickel alloy center and ground electrode provides extended life.
  • The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
  • The mid-projection center electrode design ensures optimal ignition performance, contributing to consistent engine efficiency.
See More

Champion – Copper Plus Spark Plug (N5C): Dependable Performance & Durability (Part No.120)

Copper Plus Spark Plug (N5C): Dependable Performance & Durability

from

$3.99
Copper Plus Spark Plug (N5C) delivers reliable performance and durability, making it an ideal choice for maintaining your engine’s efficiency. Featuring a copper core center electrode, this spark plug ensures enhanced conductivity and precise heat control, promoting longer life and consistent wear. Its OE-type replacement design resists fouling and meets ISO and SAE Standards, guaranteeing proven performance in various engine conditions. The flat seat type design further boosts dependability, while the nickel-tipped center and ground electrodes provide superior corrosion resistance. Built for standard replacement needs, this spark plug is engineered to handle demanding environments with ease, offering excellent value and peace of mind for your vehicle’s ignition system.

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
  • Enhanced Heat Control: The copper core electrode increases conductivity and heat control, ensuring good overall wear and a longer lifespan for the spark plug.
  • Flat Seat Type Design: The flat seat type design of the Champion Copper Plus Small Engine Spark Plug further enhances its dependability and performance in various engine conditions.
See More

ACDelco – Conventional Nickel Tip Copper Core Spark Plug: Enhances Heat Transfer & Durability (Part No.R44F)

Conventional Nickel Tip Copper Core Spark Plug: Enhances Heat Transfer & Durability

from

$4.99
ACDelco Gold (Professional) Conventional Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These conventional spark plugs are designed for reliability and efficient performance. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Product Features:
  • Black Onyx coating helps reduce corrosion
  • Copper core provides great heat transfer and helps maximize plug durability
  • Available for use in Marine applications
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
  • Nickel Center Electrode Tip: Provides efficient performance and reliability, making it a high-quality alternative to OE parts.
  • Outstanding Suppression Characteristics: Delivers reliable performance, reducing the risk of misfires and ensuring smooth engine operation.
See More

Champion – Copper Plus Spark Plug (RN5C): Dependable Performance & Durability (Part No.123)

Copper Plus Spark Plug (RN5C): Dependable Performance & Durability

from

$3.79
Copper Plus spark plug delivers dependable performance and durability, making it an ideal OE-type replacement for your vehicle. 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. Built to ISO and SAE Standards, this spark plug offers proven performance and superior corrosion resistance, making it a trustworthy choice for long-term use. With a flat seat type and integrated resistor, it is designed to meet the demands of modern engines while maintaining compatibility and efficiency.

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
See More

Most Popular Spark Plugs for 1946 Morgan 4/4 Series Is

Enhance your 1946 Morgan 4/4 Series I with one of the 4 Spark Plugs we have in stock, starting at just $3.79.

Champion – Copper Plus Spark Plug (RN5C): Dependable Performance & Durability (Part No.123)

Copper Plus Spark Plug (RN5C): Dependable Performance & Durability

from

$3.79
Copper Plus spark plug delivers dependable performance and durability, making it an ideal OE-type replacement for your vehicle. 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. Built to ISO and SAE Standards, this spark plug offers proven performance and superior corrosion resistance, making it a trustworthy choice for long-term use. With a flat seat type and integrated resistor, it is designed to meet the demands of modern engines while maintaining compatibility and efficiency.

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
See More

Champion – Copper Plus Spark Plug (N5C): Dependable Performance & Durability (Part No.120)

Copper Plus Spark Plug (N5C): Dependable Performance & Durability

from

$3.99
Copper Plus Spark Plug (N5C) delivers reliable performance and durability, making it an ideal choice for maintaining your engine’s efficiency. Featuring a copper core center electrode, this spark plug ensures enhanced conductivity and precise heat control, promoting longer life and consistent wear. Its OE-type replacement design resists fouling and meets ISO and SAE Standards, guaranteeing proven performance in various engine conditions. The flat seat type design further boosts dependability, while the nickel-tipped center and ground electrodes provide superior corrosion resistance. Built for standard replacement needs, this spark plug is engineered to handle demanding environments with ease, offering excellent value and peace of mind for your vehicle’s ignition system.

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
  • Enhanced Heat Control: The copper core electrode increases conductivity and heat control, ensuring good overall wear and a longer lifespan for the spark plug.
  • Flat Seat Type Design: The flat seat type design of the Champion Copper Plus Small Engine Spark Plug further enhances its dependability and performance in various engine conditions.
See More

Autolite – Copper Non-Resistor Spark Plug: Quick Starts & Reliable Power (Part No.275)

Copper Non-Resistor Spark Plug: Quick Starts & Reliable Power

from

$3.99
Autolite Copper spark plugs are designed to provide reliable performance and quick starts, ensuring your vehicle meets its power demands. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, enhancing overall efficiency. The high nickel alloy center and ground electrodes are engineered for extended life, while the mid-projection design ensures optimal ignition performance. Built with a high alumina multi-rib ceramic insulator, these plugs offer superior thermal conductivity and insulation, boosting strength and reliability. The nickel-plated shell resists corrosion, ensuring durability even under demanding conditions. With a flat seat type and regular grade construction, these spark plugs are a dependable choice for maintaining consistent engine performance.

Product Features:
  • The copper core center electrode aids in thermal control and improves resistance to fouling.
  • Its specially engineered high nickel alloy center and ground electrode provides extended life.
  • The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
  • The mid-projection center electrode design ensures optimal ignition performance, contributing to consistent engine efficiency.
See More

ACDelco – Conventional Nickel Tip Copper Core Spark Plug: Enhances Heat Transfer & Durability (Part No.R44F)

Conventional Nickel Tip Copper Core Spark Plug: Enhances Heat Transfer & Durability

from

$4.99
ACDelco Gold (Professional) Conventional Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These conventional spark plugs are designed for reliability and efficient performance. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Product Features:
  • Black Onyx coating helps reduce corrosion
  • Copper core provides great heat transfer and helps maximize plug durability
  • Available for use in Marine applications
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
  • Nickel Center Electrode Tip: Provides efficient performance and reliability, making it a high-quality alternative to OE parts.
  • Outstanding Suppression Characteristics: Delivers reliable performance, reducing the risk of misfires and ensuring smooth engine operation.
See More

Top-Rated Spark Plug Brands For Your 1946 Morgan 4/4 Series I

When it comes to finding the perfect Spark Plug for your 1946 Morgan 4/4 Series I, 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 Spark Plug brands including Champion and Autolite, and more, all known for their exceptional customer ratings (average brand rating of 4.7 stars) and competitive prices, as low as $3.79. Purchasing a Spark Plug from us here at Advance Auto Parts is a smart move for both you and your 1946 Morgan 4/4 Series I, providing peace of mind with parts that meet or exceed OEM standards.

Popular Champion 1946 Morgan 4/4 Series I Spark Plugs

If you’re looking for a top-quality Spark Plug for your 1946 Morgan 4/4 Series I, Advance Auto Parts has exactly what you need with our selection of Champion Spark Plugs. We have 2 Champion Spark Plugs in stock for this fitment, all known for their durability and precision fit. With prices starting at just $3.79 and an average cost of $3.89, you’ll find the perfect Spark Plug for your needs and budget. Champion Spark Plugs for the 1946 Morgan 4/4 Series I come highly rated, with over 2 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.

Top-Quality Autolite 1946 Morgan 4/4 Series I Spark Plugs

For those in search of a high-quality Spark Plug for their 1946 Morgan 4/4 Series I, Advance Auto Parts offers a great selection of Autolite Spark Plugs. With 1 Autolite Spark Plugs in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Spark Plugs start at just $3.99, giving you a range of options to suit your budget. Backed by over 1 customer ratings and an average rating of 4.6 stars, Autolite Spark Plugs provide both reliability and excellent performance. Choosing a Autolite Spark Plug from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Copper Non-Resistor Spark Plug: Quick Starts & Reliable Power
from $3.99
(1)
Copper Non-Resistor Spark Plug: Quick Starts & Reliable Power
“Perfect for my classic. Work right now but only been running a month.”

FAQs for 1946 Morgan 4/4 Series I Spark Plugs

What are the best-selling Spark Plugs for 1946 Morgan 4/4 Series Is?

Out of 4 Spark Plugs that fit 1946 Morgan 4/4 Series Is, the following parts are the top sellers:

What’s the price range for 1946 Morgan 4/4 Series I Spark Plugs?

The prices of Spark Plugs for the 1946 Morgan 4/4 Series I range from $3.79 up to $4.99 for the most premium parts.

What is the average price of a Spark Plug for a 1946 Morgan 4/4 Series I?

The average price for Spark Plugs for the 1946 Morgan 4/4 Series I is $4.19. 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 Morgan 4/4 Series I model years?

Yes, we carry Spark Plugs for 3 model years of Morgan 4/4 Series Is between 1947 and 1950. The following model years are the most popular for Spark Plug purchases: 1950, 1949, 1948, and 1947.

What are the cheapest Spark Plugs for my 1946 Morgan 4/4 Series I?

What are the top-rated Spark Plugs that fit the 1946 Morgan 4/4 Series I?

The one 1946 Morgan 4/4 Series I Spark Plug we have in stock is the Copper Plus Spark Plug (RN5C): Dependable Performance & Durability. It is rated 5 stars and costs $3.79.

What types of Spark Plugs do you sell for my 1946 Morgan 4/4 Series I?

We currently have just 1 Spark Plug in stock for a 1946 Morgan 4/4 Series I, and as of 11/2/25, it is a Spark Plug.

Can I get help with 1946 Morgan 4/4 Series I Spark Plug orders?

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

What is your return policy for Morgan 4/4 Series I Spark Plugs?

Advance Auto Parts keeps returns simple. For new Morgan 4/4 Series I Spark Plugs and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.