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⚡ Ignite your drive with Autolite’s double platinum power!
Autolite APP3924 Double Platinum Spark Plugs feature a necked-down center electrode and platinum-to-platinum firing for faster ignition, reduced misfires, and enhanced durability. With a copper core and yttrium-enhanced ground electrode, they provide superior heat transfer and maintain precise gaps for longer life. Trusted since 1936, these plugs deliver reliable, high-performance starts and acceleration backed by a 5-year limited warranty.
| ASIN | B076CFG4S2 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #454,995 in Automotive ( See Top 100 in Automotive ) #2,540 in Automotive Replacement Spark Plugs |
| Brand | Autolite Iridium Ultra |
| Core Material | Copper |
| Customer Reviews | 4.6 4.6 out of 5 stars (545) |
| Date First Available | July 25, 2011 |
| Exterior | Chrome |
| Global Trade Identification Number | 00009100259950 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 7 ounces |
| Item model number | APP3924-4PK |
| Manufacturer | Autolite |
| Manufacturer Part Number | APP3924-4PK |
| Model | Double Platinum Spark Plug |
| Position | Center |
| Product Dimensions | 5 x 1 x 5 inches |
| Top Material Type | Nickel |
| UPC | 009100259950 |
| Vehicle Service Type | Car, Truck |
R**D
Good spark plugs and a good price
They worked great on my 2005 VTX 1800c Honda
G**T
Spark plugs
They work great. Good price.
C**O
Son productos de la mas alta calidad a un precio bastante bueno, calzaron perfecto en el vehículo Suzuki Grand Vitara, dentro de algún tiempo ajustare mi comentario de ser necesario
H**D
Installed and engine started
These plugs went in my engine without issues and the engine started. It runs great and I have no complaints about the function. My issues with the plugs are quality control. Four plugs came gapped at different distances from .030 to .050. That I pretty much anticipated and would not rely on factory pre-gaps anyway. More interesting is what appears as a "shearing" of the base electrode during manufacturing which results in a slightly twisted end and some uneven end. This makes for a slightly different gap at one end of the electrode than the other. Fortunately a very thin, long file was able to quickly remove that and make it even again. For the price, they are certainly worth what you get.
S**.
Amazing cost. Easy to install in the Toyota 4 cyl.
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!
A**D
It’s ok
It’s ok
S**I
very good
works well
B**N
Nice plug for a nice plug.
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.
K**N
I cannot believe how amazing these are my 1994 Miata was not starting thought maybe I got a bad batch of spark plugs because before I got NGK and as soon as I put these in the car started up instantly and idled with no problem
J**Y
THESE SPARK PLUGS WILL OUTLAST THE REGULAR SPARK PLUGS.
J**.
Fit great goid price and fast shipping . Thanks
J**.
pour
R**B
Fits as it should. Fast SH
Trustpilot
1 month ago
2 months ago