Search  for anything...

Autolite APP3924 Double Platinum Automotive Replacement Spark Plugs (4 Pack)

  • Based on 528 reviews
Condition: New
Checking for product changes
$14.50 Why this price?
Save $3.84 was $18.34

Buy Now, Pay Later


As low as $3 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 8 left in stock, order soon!
Fulfilled by Aautoparts11

Arrives Wednesday, May 7
Order within 21 hours and 37 minutes
Available payment plans shown during checkout

Number of Items: 4


Features

  • MAXIMUM PERFORMANCE: Every Double Platinum spark plug is necked-down center electrode fires quicker and cleaner, with less voltage for easier starts and quicker acceleration. Full copper core electrode provides better performance in all conditions
  • IMPROVED DURABILITY: Our spark plugs are platinum-to-platinum firing for superior durability and super conductive Yttrium enhanced ground electrode provides superior heat transfer
  • CONSTRUCTION: These spark plugs are platinum enhanced high nickel alloy side electrode maintains precision gap and assures virtually no gap erosion for longer plug life
  • high nickel alloy side electrode maintains precise gap
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plugs needs

Description

Autolite Double Platinum Spark Plugs have better materials to give your engine better performance. Platinum-to-platinum design greatly decreases gap erosion, reduces misfires, and provides improved durability compared to standard plugs. It's the superior-performing spark plug, providing preferred technology for DIS engines. 5-year limited warranty

Brand: Autolite


Core Material: Copper


Gap Size: 0.04 Inches


Top Material Type: Nickel


Vehicle Service Type: UTV


Brand: ‎Autolite


Core Material: ‎Copper


Gap Size: ‎0.04 Inches


Top Material Type: ‎Nickel


Vehicle Service Type: ‎UTV


Global Trade Identification Number: ‎50


UPC: ‎009100259950


Manufacturer: ‎Autolite


Model: ‎Double Platinum Spark Plug


Item Weight: ‎7 ounces


Product Dimensions: ‎5 x 1 x 5 inches


Item model number: ‎APP3924-4PK


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Chrome


Manufacturer Part Number: ‎APP3924-4PK


Date First Available: July 25, 2011


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Amazing cost. Easy to install in the Toyota 4 cyl.
Number of Items: 4
Absolutely perfect pricing. Just a few bucks a plug for high Quality Double Platinum. I have no idea how they can make these (and sell them) so cheaply. Great product, worked flawlessly in the Toyota!
Reviewed in the United States on October 27, 2023 by Skippy S.

  • Great product
Number of Items: 4
I use these in my 77 Nova and haven't had a problem with them.
Reviewed in the United States on February 4, 2025 by Mike

  • Nice plug for a nice plug.
Number of Items: 4
Mileage? Longevity? I just put them in yesterday. we shall see. All I know is that I installed them easily, along with new ignition coils, and the car ran great as soon as I turned the key. My car had been running so rough that I was convinced the entire car was falling apart. No. I just needed new plugs and these are working quite well. ... show more
Reviewed in the United States on October 13, 2021 by Bezweifeln

  • Good fit for my vehicle
Number of Items: 4
Price was right. Works fine.
Reviewed in the United States on January 19, 2023 by Thomas S.

  • Works Good
Number of Items: 4
Noticed a smoother run on my 97' Ram 1500. Didn't really notice more power but definitely saved me a little on gas naturally. Has a little more pick up an go. But nothing crazy. Will definitely get these again.
Reviewed in the United States on June 7, 2024 by Mark S.

  • We'll see how they do?
Number of Items: 4
I replaced the spark plugs in my 2001 Toyota Echo. The set I took out lasted about 80,000 miles. I don't believe they were properly gaped either. I have high hopes that these will do the 100,000 mile thing which would likely be the last plugs I need to install. Time will tell but these do get generally good reviews. ... show more
Reviewed in the United States on July 9, 2022 by JJ Goodtimes

  • Works great 👍
Number of Items: 4
Works great 👍
Reviewed in the United States on December 26, 2023 by Bryan Staggert

  • Great price and super fast delivery
Number of Items: 4
Great prices on these, fits and works perfect, THANK YOU
Reviewed in the United States on April 7, 2022 by Todd

Can't find a product?

Find it on Amazon first, then paste the link below.