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Autolite Copper Resistor Spark Plug: Quick Starts & Smooth Acceleration

(492 reviews)
Part # 5224
2 yr replacement if defective
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Product Information

Product Details
Part No. 5224
Warranty Details (2 YR REPLACEMENT IF DEFECTIVE)
Autolite Copper spark plugs are expertly crafted to ensure your vehicle delivers reliable performance with every start. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, while the high nickel alloy center and ground electrode enhance durability for extended life. The high alumina multi-rib ceramic insulator boosts thermal conductivity and insulation strength, making it ideal for demanding conditions. Designed with a corrosion-resistant nickel-plated shell, these spark plugs offer long-lasting durability. With a standard center electrode design and long projection, they provide quick starts, smooth acceleration, and improved fuel economy, helping you save on fuel costs while maintaining peak performance. Perfectly suited for vehicles requiring a flat seat type and resistor-equipped spark plugs, Autolite Copper spark plugs are a dependable choice for consistent ignition and enhanced driving experience.

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.
  • 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.
Specifications
Center Electrode Core Material:
Copper

Center Electrode Design:
Standard

Center Electrode Projection:
Long Projection

Center Electrode Tip Material:
Nickel

Electrical Terminal Type:
Non-Removable Nut

Electrode Tip Material:
Resistor

Grade Type:
Regular

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Design:
Standard

Ground Electrode Tip Material:
Nickel

Hex Size:
5/8 in

Hex Type:
Hex

Indexed:
No

Insulator Material:
Ceramic

Manufacturer Heat Range:
9

Pre-Gap Size:
0.044 in

Reach:
0.75 in

Resistor:
Suppressor

Resistor Type:
Yes

Seat Type:
Flat

Skirt:
Yes

Thread Diameter:
14 mm

Tip Configuration:
Special Power

Washer(s) Included:
Yes

Wrench Diameter:
5/8 in
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4.52 out of 5
492 Customer Reviews
85% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
376
4 Stars
62
3 Stars
21
2 Stars
2
1 Star
31
Pros
53
Easy To Install
52
Improves Engine Efficiency
41
Durable
37
Increases Power
16
Lightweight
Cons
391
No
28
(null)
7
Yes
5
none
2
No Improvement In Performance
Most Liked Positive Review
Great Spark Plugs, I use these always
I’ve got 2 GMs and A Ford and they all use Autolite #26 plugs. I have beat the heck out of these plugs, pulled them and cleaned them up and kept going with no trouble. I ran the same set of Autolite Plugs in my Buick for 3 yrs before I changed them and they were still running good at the time I decided to change them. I ran the same set in my Chevy for 2 yrs then pulled em and cleaned them up and ran them some more untill I sold the car. Great Plugs Autolite. Thanks, and by the way the ones in the Ford are now 2 yrs old and still run great.
Most Liked Negative Review
Gapping too small
The plug appears okay but the gap is smaller than what is called for on my vehicle. Don't know if it is the manufacturer's issue or if Advanced Auto has the wrong plug listed for my vehicle. I was able to open the gap to the minimum requirements with sandpaper.
Reviewed by 492 Customers
Great!
Verified Buyer -
I bought these for my motorcycle. It was cutting out real bad and after replacing the plugs, it runs great now!
Bottom Line Yes, I would recommend to a friend
decent
Verified Buyer -
you get what you pay for. next time i am going to buy the premium spark plugs. my engine starts up a bit faster in the morning now though
Bottom Line Yes, I would recommend to a friend
Great for Ford N-Series tractors
Verified Buyer -
This plug works great in my 1945 Ford 2n tractor. I put a fresh set in every 4-5 years and they usually look like they don't really need replacement. But for the price is good preventative maintenance.
Bottom Line Yes, I would recommend to a friend
less than impressed
I would not buy this product again I bought Bosch superplus and the car ran perfectly....
Bottom Line No, I would not recommend to a friend
Gapping too small
Verified Buyer -
The plug appears okay but the gap is smaller than what is called for on my vehicle. Don't know if it is the manufacturer's issue or if Advanced Auto has the wrong plug listed for my vehicle. I was able to open the gap to the minimum requirements with sandpaper.
Displaying Reviews 1 - 5Back to Top
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