Will this work on a predator 212?

No, they do not fit that model.

Is this pack of 1 or 4?

These are sold in packs of 4. So if you need a total of 8 spark plugs, add a quantity of 2 to your cart.

Are these the same as ar3910x?

The 3933 is the standard and the 3910 is the power tip. Not sure what the difference is. They are the same heat range.

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Autolite AR3933X Ar High Performance Racing Non-Resistor Spark Plug

Autolite AR3933X Ar High Performance Racing Non-Resistor Spark Plug

Product ID: 342052474

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Details

Brand
Autolite Ultra
Core material
Nickel
Top material type
Nickel
Vehicle service type
Car
Global Trade Identification Number

⚡Cut background electrode for faster ignition

🔥Colder heat range for max performance

🛠️Yttrium alloy cuts side wire temp by 8%

Description

⚡ Ignite your engine’s true potential with Autolite AR3933X!

DURABILITY BOOST - Yttrium-enhanced alloy reduces side wire temperature by 8%, extending plug life
IGNITION SPEED UPGRADE - Cut background electrode accelerates flame kernel growth for quicker starts
RACE PROVEN PERFORMANCE - Trusted by professional drivers for peak track results
ADVANCED HEAT MANAGEMENT - Colder heat range designed to handle intense engine mods
CORROSION RESISTANT FINISH - Nickel plating ensures long-lasting reliability under extreme conditions

The Autolite AR3933X is a high-performance racing spark plug engineered with a colder heat range and a Yttrium-enhanced alloy that reduces side wire temperature by up to 8%, improving durability and minimizing pre-ignition. Featuring a cut background electrode for faster ignition and a corrosion-resistant nickel plating, it’s the trusted choice of professional drivers seeking reliable, race-ready ignition performance.

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Manufacturer	AUTOLITE
Brand	Autolite Iridium Ultra
Model	AR3933X-4PK
Product Dimensions	12.7 x 2.54 x 2.54 cm; 54.43 g
Item model number	AR3933X-4PK
Manufacturer Part Number	AR3933X-4PK
Position	Center
Item Weight	54.4 g

Autolite AR3933X Ar High Performance Racing Non-Resistor Spark Plug

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