1966 GMC 1500 Spark Plugs
More 1966 GMC 1500 Spark Plugs
Find your specific 1966 GMC 1500 original or aftermarket Spark Plugs below. Order your parts online and have delivered to your home or pick up in-store at Advance Auto.
Essential 1966 GMC 1500 Spark Plugs
Champion – Copper Plus Small Engine Spark Plug Dependable Performance, OE Replacement RN5C (Part No.123)
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$2.99
Dependable performance. This Champion® spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.
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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
Champion – Copper Plus Small Engine Spark Plug: Dependable Performance, OE Replacement, N5C (Part No.120)
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$2.99
Dependable Performance, OE Replacement, N5C. This Champion® spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear. Built to ISO and SAE standards, it offers dependable performance and durability with its Copper Plus technology. The OE type replacement plug resists fouling and boasts superior corrosion resistance. The nickel copper alloy center electrode allows for accurate control of heat range, ensuring a longer life and reliable performance. The flat seat type design further enhances its dependability.
Product Features:
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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.
E3 – DiamondFIRE Automotive Spark Plug: More Power, Saves Gas (Part No.E3.46)
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$7.49
The Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented electrode configuration of these new The spark plugs increases the amount of combustion pressure created during each power stroke of an engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3.46 is a 14mm, 0.750 reach plug with a gasket seat. It fits a wide variety of applications from the 60s to early 90s, especially import. E3.46 is widely stocked in automotive retail stores. The automotive plugs have three legs securing the Diamond FIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented Diamond FIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use.
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Product Features:
- E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn.
- Smoother Acceleration & Idle – The faster flame initiated by the The spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
- Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
- Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
- E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
- The Spark Plugs are pre-gapped at the factory and cannot be adjusted.
- Wide Compatibility: The E3.46 spark plugs are 14mm with a 0.750 reach and a gasket seat, making them suitable for a wide range of applications from the 1960s to early 1990s, especially for import vehicles.
- Widely Available: The E3.46 spark plugs are widely stocked in automotive retail stores, ensuring easy availability for consumers.
ACDelco – Copper Core Spark Plug (Part No.R44XLS)
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$4.99
ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. 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.
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Product Features:
- Black Onyx coating helps reduce corrosion
- Copper core provides great heat transfer and helps maximize plug durability
- Ribbed suppressor seal extends resistance and helps prevent spark ‘flash over’ and misfires
- Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
- 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
Autolite – Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (Part No.AP65)
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$4.79
With over 100 years of engineering expertise and more than 11 billion plugs sold, Autolite Platinum spark plugs are designed and engineered in the USA to deliver exceptional performance. Featuring a high nickel alloy side electrode that maintains a precise gap and a full platinum tip that ensures virtually no gap erosion, these spark plugs offer long-lasting durability. The necked-down center electrode fires quicker and cleaner with less voltage, resulting in easier starts, quicker acceleration, and improved fuel economy compared to standard plugs.
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Product Features:
- High nickel alloy side electrode maintains precise gap
- Full platinum tip assures virtually no gap erosion for long life
- Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs)
- Improved Fuel Economy: Designed to enhance fuel efficiency compared to standard spark plugs.
- Engineered in the USA: Backed by over 100 years of engineering expertise and a legacy of more than 11 billion plugs sold.
Autolite – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP65)
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$6.49
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.
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Product Features:
- Works to optimize engine performance for a longer life and improved fuel economy
- OE design
- Full-platinum tips; platinum on both the center and side electrodes to promote reduced gap wear
- Platinum ball welding process provides a consistent point of contact for enhanced adhesion
Autolite – Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (Part No.65)
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$3.49
With over 100 years of engineering expertise and more than 11 billion plugs sold, Autolite continues to set the standard. Designed and engineered in the USA, these spark plugs feature a copper cored center electrode for higher thermal conductivity and a specially engineered high nickel alloy center and ground electrode for extended life. The high alumina ceramic ensures high dielectric strength, while the leak-proof, heat-fused internal seal guarantees durability. Additionally, the multi-rib insulator prevents flash-over, making these spark plugs a reliable choice for any vehicle.
Product Features:
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Product Features:
- Copper cored center electrode for higher thermal conductivity
- Specially engineered high nickel alloy center and ground electrode for extended life
- High alumina ceramic for high dielectric strength
- Leak proof, heat fused internal seal for durability
- Multi-rib insulator prevents flash-over
- Quick Starts and Smooth Acceleration: Designed to deliver quick starts and smooth acceleration, ensuring a reliable performance for your vehicle.
- Enhanced Fuel Economy: Engineered to provide good fuel economy, helping you save on fuel costs.
Popular 1966 GMC 1500 Spark Plugs Categories
1966 GMC 1500 Spark Plugs
Maybe you’re in the middle of a full rebuild of that 1966 GMC 1500. Maybe you just need a couple of Spark Plugs. Either way, Advance Auto Parts has 7 different Spark Plugs in our inventory ranging from $2.99 to $7.49. That means you can find the exact parts or products you need to keep that 1966 GMC 1500 running smoothly.
Spark Plugs are only as good as their brand. We stock 4 different brands to make sure you have plenty of trusted parts to choose from for your 1966 GMC 1500. Autolite, ACDelco, and E3 are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!
We know you’ll find the perfect Spark Plugs for your 1966 GMC 1500, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 156 reviews in this category, some of the top rated parts include Copper Plus Small Engine Spark Plug: Dependable Performance, OE Replacement, N5C with 5.0 stars.
So if you’re in the market for aftermarket Spark Plugs to keep your 1966 GMC 1500 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!
Spark Plugs Brands To Make Your 1966 GMC 1500 Last
Simple repair, complete replacement, or a full rebuild. No matter the job, your 1966 GMC 1500 demands trusted brand parts and products to keep it running. Many trusted brands of Spark Plugs make up Advance Auto Parts’ inventory, and all are ready to help make your 1500 the best it can be. Be sure to browse some of our top Spark Plugs brands and parts.
Popular ACDelco Spark Plugs
We carry ACDelco parts in our stock across Spark Plugs categories, plus more. For a 1966 GMC 1500, our most popular ACDelco Spark Plugs include:
Top 1966 GMC 1500 Spark Plugs from Autolite
Autolite products are another trusted brand when it comes to Spark Plugs for your 1966 GMC 1500. Popular Autolite parts include:
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$4.79
(126)
Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration
Spark Plugs
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$3.49
(6)
Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration
Spark Plugs
FAQs for 1966 GMC 1500 Spark Plugs
What are the most purchased Spark Plugs for the 1966 GMC 1500?
Out of 7 Spark Plugs for the 1966 GMC 1500, the most popular in our inventory are:
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$2.99
(1)
Copper Plus Small Engine Spark Plug Dependable Performance, OE Replacement RN5C
Spark Plugs
from
$6.49
This product is not rated
Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life
Spark Plugs
What are the top-rated 1966 GMC 1500 Spark Plugs?
Top-rated Spark Plugs for your 1966 GMC 1500 based on customer reviews/ratings are:
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$2.99
(1)
Copper Plus Small Engine Spark Plug: Dependable Performance, OE Replacement, N5C
“Great prices”
