Platinum Spark Plug
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Autolite Platinum Spark Plug

Part No. AP104 Warranty Details  
$2.59
was $3.09
you save $0.50
Quantity  Add to Cart

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Autolite Platinum Spark Plugs provide a center wire platinum firing tip for improved performance.

Product Features:
  • Super conductive Yttrium enhanced ground electrode provides superior heat transfer
  • Full platinum tip assures virtually no gap erosion for longer plug life
  • Leak proof, heat fused resistor for durability
  • 4 year limited warranty
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Electrode Tip Material:Platinum
Reach:.708 in
Resistor:Suppressor
Seat Type:Tapered
Thread Diameter:14 mm
Tip Configuration:Power
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
AutolitePlatinum Spark Plug
 
4.6

(based on 45 reviews)

Ratings Distribution

  • 5 Stars

     

    (32)

  • 4 Stars

     

    (10)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

96%

of respondents would recommend this to a friend.

Pros

  • Improves engine efficiency (18)
  • Easy to install (16)
  • Increases power (15)
  • Durable (14)
  • Lightweight (3)

Cons

No Cons

Best Uses

  • Everyday driving (18)
  • Replacement (16)
  • Restoration (6)
  • Performance driving (5)
  • Racing (3)
    • Was this a gift?:
    • No (4)
    • Reviewer Profile:
    • Casual driver (10), Auto enthusiast (9), Mechanic (6)

Most Liked Positive Review

 

Excellent plugs replaced @ 120,900 miles

I replaced my original plugs with these,(120,900 miles on them) when I finally got to the old ones in my car I found I was replacing the same plugs that came in the...Read complete review

I replaced my original plugs with these,(120,900 miles on them) when I finally got to the old ones in my car I found I was replacing the same plugs that came in the car when it was originally sold. Autolite's work like a dream. The car is running smoother than ever and I believe I will notice some mileage gains once I get a chance to drive it for a while.

VS

Most Liked Negative Review

 

Poor Quality Control

Ive used Autolite "standard" plugs for over a decade with no issues BUT.

Well with these Platinum plugs I bought 6 & only 2 out of the 6...Read complete review

Ive used Autolite "standard" plugs for over a decade with no issues BUT.

Well with these Platinum plugs I bought 6 & only 2 out of the 6 had a electrode that was precision centered with the ground strap.

I Bought 6 more & only 3 was centered that time.
There was no consistency as to the electrodes location to the ground strap.

There all usable but the Quality Control is Poor.
They have a 3yr warranty in which they will no doubt last this length of time.

If anyone implys that this plug is a Performance plug then there mistaken!

The OEM plug did not have this offset issue.

Good Day.

Reviewed by 45 customers

Displaying reviews 1-10

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5.0

Spark Plugs

By 

from undisclosed

See all my reviews

Verified Buyer
3 or more reviews submitted

Comments about Autolite Platinum Spark Plug:

Expect to install shortly.

 
5.0

Runs like new

By 

from undisclosed

Verified Buyer

Comments about Autolite Platinum Spark Plug:

Work excellent and a good price

 
5.0

Great price and quality

By 

from undisclosed

Verified Buyer

Comments about Autolite Platinum Spark Plug:

Great price and quality

 
5.0

very compleate

By 

from undisclosed

Verified Buyer

Comments about Autolite Platinum Spark Plug:

Good quality and detailing

 
5.0

Would buy again

By 

from undisclosed

Verified Buyer

Comments about Autolite Platinum Spark Plug:

Good plugs

(1 of 1 customers found this review helpful)

 
4.0

I would purchase again for an older car.

By 

from undisclosed

Verified Buyer

Comments about Autolite Platinum Spark Plug:

Decent priced for a platinum plug and haven't had any problems after installing them on 04-16-17. Installed in a 1999 Ford Taurus with 250,000 miles.

 
4.0

Works Just Fine

By 

from undisclosed

Verified Buyer

Comments about Autolite Platinum Spark Plug:

So far these plugs work great. I put these new plugs in to replace the motorcraft AGSF32N plugs which i got 141 thousand miles.
I hope these will last the life of the car.

 
5.0

yes

By 

from undisclosed

See all my reviews

Verified Buyer
3 or more reviews submitted

Comments about Autolite Platinum Spark Plug:

good plugs

 
5.0

I will always buy and recommend these plugs.

By 

from undisclosed

Verified Buyer

Comments about Autolite Platinum Spark Plug:

I always use autolite plugs in my Ford vehicles. They have never let me down.

 
5.0

yes

By 

from undisclosed

Verified Buyer

Comments about Autolite Platinum Spark Plug:

great

Displaying reviews 1-10

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Do you have questions about this product?

 

Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

19 Questions | 22 Answers
Displaying questions 1-10Previous | Next »
  • Q:

    I've always had good luck with autolite plugs, but now I'm ready to change the plugs in this Northstar caddy, and I'm wondering if they will give me the same good performance with this engine I've never had before? Any insight from someone who's had delt with this engine would be appreciated, thanks Chris
    Asked on 5/24/2017 by Backyard for ever man from West Alexandria ohio

    1 answer

    • A:

      My best advice would be to find out what the manufacturer put in the car
      when it was new. Buy them, gap accordingly, and install. Many, if not
      most, engines are built around specific products, and spark plugs can vary
      significantly when it comes to heat ranges, perceived improvements (that may
      not help), etc.
      Always go with the factory choice, if it's still available. If it's not,
      consult with a knowledgeable mechanic who understands plugs, heat ranges,
      conductors, gaps, etc.
      Also consider how many miles are on the motor, and think about fuel system
      cleaning (IV-type system), plug wires, distributor cap (if applicable), air
      filters, etc. Just changing the plugs because they've broken down/lost
      efficiency over the years/miles, doesn't address other issues that have also
      experienced the same wear and tear. Good luck!

      Answered on 5/24/2017 by wiredforsound05 from undisclosed
  • Q:

    do i gap these Autolite Platinum Spark Plugplugs for my 1999 ford f-150 4.6 2 wd?
    Asked on 11/22/2016 by vince from kalamazoo michigan

    1 answer

    • CUSTOMER CARE

      A:

      Yes, Vince! This Autolite Platinum Spark Plug - Part No. AP104 is pre-gapped from the factory. However, the gap must be adjusted for the vehicle (1999 Ford F-150 4.6L) that the spark plug is intended for (0.054"-inch gap).

      Answered on 11/23/2016 by Solomon from AAP
  • Q:

    what is the gap on a 1983 cj7 six cylinder
    Asked on 10/29/2016 by fishman from sipperville alabama

    1 answer

    • CUSTOMER CARE

      A:

      Hi Fishman, I'm glad to assist you! This Autolite Platinum Spark Plug - Part No. AP104 is pre-gapped at 0.045"-inch from the factory. The gap must be adjusted for the vehicle that the spark plug is intended for. Those with modified engines must remember that a modified engine with higher compression or forced induction will typically require a smaller gap settings.

      Answered on 10/31/2016 by Solomon from AAP
  • Q:

    are this spark plug already set.
    Asked on 1/23/2014 by meka from memphis tn

    1 answer

    • CUSTOMER CARE

      A:

      Hi Meka! I'm glad to help you. This Autolite spark plug traditionally leaves the factory pre-gapped for its application. However, a plug may fit hundreds of engines. Gapping the plugs to your engine’s specifications is important to prevent pre-ignition, detonation, fouling and poor fuel economy. Even if the preset Gap matches that required by your engine, it is always good practice to physically check the Gap as it may have shifted during transportation.

      Answered on 1/23/2014 by Morgan from AAP
  • Q:

    is it higher the number the hotter? or the lower the number...
    Asked on 12/22/2013 by jim from logan.oh..

    1 answer

    • CUSTOMER CARE

      A:

      Hi Jim! Good question, though. The heat rating of the spark plug is indicated by a number; lower numbers indicate a hotter type, higher numbers indicate a colder type.

      Answered on 12/24/2013 by Max from AAP
  • Q:

    what would cause plug to blow out ? can you put some type of locking grease on plug to stop this ????
    Asked on 2/7/2013 by joe from blackstock s.c. 29014

    2 answers

    • A:

      Not just overtightening -- you get any grit or anything in the threads of an aluminum engine and it is very VERY easy to crossthread the plug. That is why you should NEVER use the wrench to tighten until the very end, you should be able to turn it down by hand with just your fingers.

      It is a very VERY good idea to CAREFULLY run a thread chaser in before putting the new plug in. while most of them resemble a spark plug and are used with a spark plug socket, there is one that is intended for oxygen sensors and if you have that thread, use it because it's a female 3/8" ratchet fitting, you put an extension on and go from there.

      In addition to the helacoil, or tapping it out to a larger plug size, it might be possible to wrap the plug with teflon tape, we did that on a VW Bug engine some years back, although it really didn't fire on that cylinder and I dread to think of what would happen were this a computerized engine.

      Answered on 7/27/2015 by Dr. Ed from Matinicus, ME
    • CUSTOMER CARE

      A:

      With reference to your inquiry on the Autolite Single Platinum Spark Plug - part# AP104, the only way a plug can blow out is if the threads are damaged/non existent, this usually happens from over tightening the plugs and is very easy to do on aluminium heads. Fitting a heli-coil is the way to go to fix it. However, I would suggest taking your vehicle to a certified mechanic for a proper diagnosis. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

      Answered on 2/8/2013 by Vincent from AAP
  • Q:

    Where is my $16.00 on $2.00 rebate per plug? It is now 1/26/2013 I sent it in back on 5/2012 and call autolite and never can get through for any status, I feel screwed and bad for my child, I think adavance should just pay me and have to deal with autolite corp. I will never buy autolite product again or fall for any rebate from advance,WHOM ever it concerns, that rebate money is from my disabled child that needed transportation repairs and that money back sooner then most of us,so they can advace a autlite up ther a#$!
    Asked on 1/26/2013 by nate from michigan

    1 answer

    • CUSTOMER CARE

      A:

      We apologize for the inconvenience caused, please call us at 1-877-ADVANCE (238-2623) and we would be more than happy to assist you.

      Answered on 1/26/2013 by Aaron from AAP
  • Q:

    WHAT IS THE "DESIGN CHANGE" AS STATED COMPARED TO THE OTHER PLUG YOU OFFER # SP493 ?
    Asked on 9/25/2012 by HAL from KINGSTON,TN

    1 answer

    • CUSTOMER CARE

      A:

      The Autolite Single Platinum Spark Plug (Part No. AP104) comes with a platinum ball on center electrode which minimizes gap erosion for longer life and resists wear to help maintain gap size. This Platinum Ball Welding Process is the only difference between this part and the Motorcraft Original Equipment Single Platinum Spark Plug (Part No. SP493). For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto store and one of our representatives will gladly assist you with any questions or concerns you may have.

      Answered on 9/26/2012 by John the Car-Doc from AAP
  • Q:

    Where are the spark plugs located on the 1998 Ford Explorer AWD 5.0L? What is the gap setting, and are they easy to get to and install? Thanks
    Asked on 8/21/2012 by Shea from Rocky Mount, Va

    1 answer

    • CUSTOMER CARE

      A:

      The Spark plug gap for a 1998 Ford Explorer AWD 5.0L is .054. The installation process is simple and you can replace it yourself. Locate the spark plug wires on the sides of the Explorer's engine. Pull back on the wires to reveal the spark plugs. Turn one spark plug wire by its boot, which is the larger piece at the end of the wire. Place the socket over the spark plug and unscrew it until the old spark plug is free from the cylinder well. Brush out the wire boot and cylinder well to remove any debris. Screw the new spark plug into the well until it is tight. Reconnect the wire and turn it halfway to the left and then all the way to the right to lock the wire on the spark plug in place. Only work with one spark plug at a time to avoid causing any damage to the engine of the Explorer.

      Answered on 8/21/2012 by John the Car-Doc from AAP
  • Q:

    what is the plug gap for a mazda b3000 truck?
    Asked on 8/4/2012 by whiskers from hawley,tx

    1 answer

    • CUSTOMER CARE

      A:

      The spark plug gap setting for your Mazda B3000 should be 0.044 inch. For compatibility of this part, please provide your vehicle year and engine specification. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

      Answered on 8/4/2012 by Rick from AAP
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