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⚡ Ignite your drive with Autolite’s double platinum power!
Autolite APP3923 Double Platinum Spark Plugs deliver faster ignition and superior durability through a necked-down center electrode and platinum-to-platinum firing. Enhanced with a Yttrium ground electrode and high nickel alloy side electrode, these plugs maintain precise gaps for longer life. Trusted since 1936, they offer universal fitment for cars and trucks, ensuring reliable, high-performance starts and acceleration.


| ASIN | B076C8XXW4 |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #23,523 in Automotive ( See Top 100 in Automotive ) #112 in Automotive Performance Spark Plugs |
| Brand | Autolite Iridium Ultra |
| Brand Name | Autolite Iridium Ultra |
| Compatible with Vehicle Type | Car, Truck |
| Core Material | Platinum |
| Core material | Platinum |
| Country of Publication | Mexico |
| Customer Reviews | 4.6 out of 5 stars 818 Reviews |
| Global Trade Identification Number | 00009100002358 |
| Included Components | Platinum Spark Plug |
| Item Type Name | Double Platinum Spark Plug |
| Item Weight | 200 g |
| Manufacturer | FRAM |
| Manufacturer Part Number | APP3923-4PK |
| Model Number | APP3923-4PK |
| OEM Equivalent Part Number | APP3923-4PK |
| Thread Size | 5/8 inches |
| Thread size | 5/8 inches |
| Top Material Type | Nickel |
| Top material type | Nickel |
| UPC | 009100002358 |
| Unit Count | 4 Count |
| Vehicle service type | Car, Truck |
M**M
Perfect
Used this full set to replace all 4 spark plugs on a 2000 VW Jetta 2.0L Real good performance from them so far.
L**N
Exlente me funcionó muy bien
Me funcionó muy bien aun las tengo usando no tengo foto por tonto no le tome pero me llego bien ya las tengo instaladas y funcionado bien. Saludos
D**E
Make sure you gap them!
Decent plugs for the price, but make sure you gap them! Gas milage seems good. They don't come pre-gapped. I Assumed they did and threw them in the Audi A4 as i couldn't find my gap tool. The car started, idled and drove fine but stuttered badly when hard accelerating. I pulled the plugs, checked the pre-set gap and they were well over spec. Decreased the gap and now drives perfect. I'm used to the pre-gapped auto parts store plugs out the box, my bad. Overall good plugs as long as you keep that in mind. Too early to tell how long/how well they'll perform.
T**.
Autolite app plugs
Plugs worked great in my 13 chevy cruze lt with the turbo engine. I however didn't keep them in my car because I put iridium plugs back in since my car has a tune in it
J**B
They work
Purchased for a 2012 VW GTI. Had to adjust the gap quite a bit to fit my vehicle specs, but they work fine.
Trustpilot
3 days ago
2 months ago