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Advance Auto Parts Logo
1205 E Main St
Columbus, OH 43205
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Autolite Iridium Iridium Ultra Finewire Spark Plug: Optimal Performance, Durability, Ignitability

Part # AI6203
limited lifetime replacement
$10.99
Add A Vehicle to Check Fitment
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Store Pickup

FREE
Ready in 30 mins at 1205 E Main StColumbus, OH

Same Day Home Delivery

Not Available After 6pm

Home Delivery

FREE for orders over $35

Standard Delivery Available

Curbside pickup is available at most stores
$3 Rebate with the purchase of 4 or more Autolite Iridium Ultra or Iridium XP Spark Plugs (purchases must be on same transaction)

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Product Information

Product Details
Part No. AI6203
Warranty Details (LIMITED LIFETIME REPLACEMENT)
Autolite Iridium Ultra Laser Finewire Spark Plugs are one of our brand's most technologically advanced products. These spark plugs provide superior durability, more focused ignition with better overall ignitability for optimum performance. Autolite Spark Plugs are the best alternative to OE spark plugs, offering OE fit form and function supporting all foreign and domestic makes and models at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs in the world.

Product Features:
  • Autolite Iridium Ultra is an engineered OE replacement iridium spark plug.
  • A laser-welded 0.5mm pure iridium finewire center electrode provides optimal fuel efficiency, acceleration and focused ignitability.
  • Nickel-plated shell to resist corrosion.
  • High-alumina ceramic insulator for increased strength.
  • Laser welded 0.5mm Iridium finewire center electrode.
  • Proprietary platinum sidewire technology.
Specifications
Center Electrode Core Material:
Iridium

Electrical Terminal Type:
Stud

Center Electrode Tip Material:
Iridium

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Design:
Tapered

Ground Electrode Tip Material:
Platinum

Reach:
1.043 in

Reach:
26.5 mm

Resistance:
4000

Pre-Gap Size:
0.044 in

Pre-Gap Size:
1.1 mm

Thread Diameter:
12 mm

Hex Size:
5/8" in

Hex Size:
16 mm

Seat Type:
Flat

Resistor Type:
Yes

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3.94 out of 5
16 Customer Reviews
75% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
9
4 Stars
3
3 Stars
1
2 Stars
0
1 Star
3
Pros
No Pros
Cons
No Cons
Most Liked Positive Review
Superb performance for less money.
This is the second set of these I have used in my 2017 Subaru Forester 2.5i, this time stretched to 76000 miles but only did them again because Subaru calls for 60000 interval. The prior set had no issues, the new set demonstrate excellent performance and gas mileage. Recommend light coating anti-seize on threads for easier future removal.
Most Liked Negative Review
Not good for a 2007 Nissan Altima 2.5L
I put them in a 2007 Nissan Altima 2.5L and the car ran terrible. I ended up putting the old ones back in and the car is running fine. I am going to pick up the NGK dilkar6a11 . The part that sucks is I am out the money I paid for these, because Advanced Auto Parts does not take back spark plugs that have been installed, even though they are the ones that recommended them
Reviewed by 16 Customers
3063 Saddlebred Ct
Submitted 2 months ago
My local advance didn't have 6 of the NGK's my Honda calls for, so I opted for these to see how they would do. I have to say, I have not noticed a difference between these and stock. I have put about 150 miles on my vehicle and it's running great. All plugs were pre-gapped to the spec and required no adjustment.
Bottom Line Yes, I would recommend to a friend
Pretty nice
Submitted 2 months ago
Put em in and my car started right up thank god is running good today
Bottom Line Yes, I would recommend to a friend
BAD
Submitted 4 months ago
I bought 6 last week. Early this week my car light up the engine sign. I returned to the mechanic and two of the spark plugs were already damaged. I went to a Ford dealer and bought 6 original spark plugs. I lost my money in Advance.
Bottom Line No, I would not recommend to a friend
This is only good for a temp fix
Submitted 5 months ago
NkG is far more superior to this plug. I have them in and you can feel a slight misfire as I only needed one plug.
Bottom Line No, I would not recommend to a friend
Noce
Submitted 10 months ago
Good plug
Bottom Line Yes, I would recommend to a friend
Displaying Reviews 1 - 5Back to Top

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is it compatible on asian honda civic 1.8E vtec?
Verified Reply - John the Car-Doc
Hi Jonas desuyo! Since you didn't mention the specific year of the application, it's hard to tell for sure. There is no product link on your submitted question. To give you the correct information, please provide the part number of the product and the year of your application.
Do autolite number 4194 fit a 2004 pt cruiser
Verified Reply - Steve
Hi Carmelita, I'm glad to help you! This Autolite Copper Non-Resistor Spark Plug (Part # 4194) does not fit your 2004 Chrysler PT Cruiser. We do have an exact spark plug available online for your vehicle and the part number is AP5263. Please enter your vehicle on our website and search for this part to check the fitment.
Are those plugs 10$ a piece for kia fortea
Verified Reply - Steve
Hi Brandon, I'm glad to help you! We can only look up by the vehicle and the part number. There is no product link on your submitted question. For further assistance, please provide us with the year and engine size of your vehicle with the part number of the product along with your inquiry.
WHERE ARE AUTOLITE IRIDIUM ULTRA FINE WIRE MADE ?
Verified Reply - Solomon
Hi Hektor, happy to help you! Advance Auto Parts does sell Made in the USA products as well as products manufactured from many other countries in order to keep our pricing competitive. Please also keep in mind that many suppliers have multiple manufacturing plants that could result in different countries of origin for the same part.
It lists a $3 rebate on the purchase of 4 or more of these spark plugs. I just purchased 4, how do I get the rebate?
Verified Reply - Steve
Hi Carl, I'm glad to help you! All rebate inquiries are handled by a different department and we do not have access to the rebate information. I suggest you to contact the rebate customer service at 1-888-378-9766 or through email at advanceautoparts@help.4myrebate.com and they would be in a better position to assist you further.
Displaying Question & Answer 1-5

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