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.
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
Specifications
Center Electrode Core Material:
Platinum
Center Electrode Tip Material:
Platinum
Electrical Terminal Type:
Stud
Ground Electrode Core Material:
Nickel
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Tapered
Ground Electrode Tip Material:
Platinum
Hex Size:
5/8" in
Pre-Gap Size:
0.04 in
Reach:
25 mm
Resistance:
4000
Resistor Type:
Yes
Seat Type:
Tapered
Thread Diameter:
14 mm
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842 Customer Reviews
89%of respondents would recommend this to a friend
Ratings Distribution
5 Stars
670
4 Stars
102
3 Stars
25
2 Stars
11
1 Star
34
Pros
88
Improves Engine Efficiency
67
Easy To Install
65
Increases Power
50
Durable
12
Lightweight
Cons
8
Difficult To Install
8
none
6
No Improvement In Performance
4
Decreases Gas Mileage
1
None
Best Uses
96
Everyday Driving
61
Replacement
24
Performance Driving
15
Restoration
3
Racing
Car & Truck
13
Casual Driver
11
Auto Enthusiast
9
Mechanic
7
Truck Enthusiast
1
Competitive Driver
Describe Yourself
46
Casual Driver
39
Auto Enthusiast
19
Mechanic
15
Truck Enthusiast
5
Competitive Driver
Most Liked Positive Review
Awesome Spark Plugs
Wow as I have some good exciting news about these spark plugs. I installed them in my 97 Ford F-150 4.6 V8 right along with some new Duralast Spark Plug Wires right, when I turn the ignition over to reveal the results, I was excited at the results of hearing the smooth idle of my ride with them new plugs and wires. I am impressed with the performance of those plugs. They improve my engine performance. They are top notch. I definitely recommend them to anyone. I put my trust in them. They stopped the low speed hesitation i was experiencing, now I do not hear or feel it anymore. Truck feels better. Great investment in them, Autolite you're the best. I had a misfiring on cylinder 3. I am back on the road, they exceed performance to me, I give them a A+++++ beyond. My truck drive very smooth now, better than before. I do not feel like I can feel the idle at a stop light or stop sign, man I got some excellent plugs, now time will tell how good they will last from now until 5 years of the warranty. I'm ready to see will they improve great gas mileage.
Most Liked Negative Review
Each plug had smuges and grease on them
The plugs all had smudges and grease on them out of the box, could tell they were cleaned and the boxes were opened before I purchased them.
Reviewed by 842 Customers
Nice
Submitted 10 days ago
My
Bottom Line Yes, I would recommend to a friend
Great price!
Submitted 20 days ago
I paid a friendly price for this product. These plugs were easy to install. I have yet to drive 100,000 miles yet.
Bottom Line Yes, I would recommend to a friend
I would buy this product again.
Submitted a month ago
Consistent idle speed. Aggressive acceleration right up to red line. Much better than the Champion plugs I have been using.
Bottom Line Yes, I would recommend to a friend
Would buy again.
Submitted a month ago
Worked as needed.
Bottom Line Yes, I would recommend to a friend
Great Product
Submitted 5 months ago
Works great. Easy install. Installed on 2000 F150 XLT 4.6 RWD.
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Will advanced sales rep pre gap plugs for you
Verified Reply - John the Car-Doc
Hi Jerry! We do only install automotive batteries and wiper blades at our stores. However, I'd recommend that you call us at 1-877-ADVANCE (238-2623) and press option 3 so that you could speak to our store customer care and they will be in a better position to assist you.
Just a tip... The Acura service manual says the plug gap spec. is .039"-.043" IDK why they say .044 is spec. 40 Year ASE Master Tech. always set new plug gap to the tight end of the spec because the gap increases with mileage on the plug.
Verified Reply - Solomon
Hi Charles, happy to help you! Thank you for bringing this to our attention! We have forwarded this information to our content team to update the site. We appreciate your patience while this information is updated.
Warranty
Verified Reply - Steve
Hi John, I'm glad to help you! We do handle only technical questions regarding product fitments, specifications, diagnosis and repairs. For warranty related quires, please feel free to call us at: 1-877-ADVANCE (238-2623) or contact our "Live Chat" support and one of our representatives will gladly assist you with any questions or concerns you may have.
What are the best plugs for my 2011 Ford Taurus sel
Verified Reply - John the Car-Doc
Hi Don, I'm glad to assist you! We do offer an exact fit Autolite Iridium Iridium XP Spark Plug - Part # XP5364 for your 2011 Ford Taurus SEL online.
Are these plugs pre‐gapped exactly for a 2009 mercury grand marquis at 1.4mm?
Verified Reply - Steve
Hi Tony, I'm glad to help you! This Autolite Double Platinum Spark Plug (Part # APP104) is an exact fit for your 2009 Mercury Grand Marquis with a preset gap of 1.27mm. All the spark plugs are pre-gapped from the factory, the fact remains that the gap must be adjusted for the vehicle that the spark plug is intended for.
Displaying Question & Answer 1-5
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