Name: Autolite AR3923-4PK High Performance Racing Resistor Spark Plug, Pack of 4
Brand: Autolite Iridium Ultra
SKU: 214894231
Price: 1546.39 THB
Availability: OutOfStock
Rating: 4.428571428571429 (7 reviews)

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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Description

⚡ Ignite your engine’s true potential with Autolite Racing Spark Plugs!

HEAT RESISTANT ALLOY - Yttrium-enhanced alloy reduces side wire temperature by 8%, minimizing pre-ignition risks.
RACE PROVEN DURABILITY - Trusted by professional drivers for peak performance under extreme conditions.
CORROSION RESISTANT FINISH - Nickel plating ensures long-lasting protection against rust and wear.
OPTIMIZED IGNITION EFFICIENCY - Cut-back ground electrode enhances flame kernel ignitability for faster, cleaner combustion.
PRECISION FIT FOR PERFORMANCE - Vehicle-specific design guarantees seamless installation and optimal engine compatibility.

Autolite AR3923-4PK High Performance Racing Spark Plugs deliver professional-grade ignition with a colder heat range and yttrium-enhanced alloy that cuts side wire temperature by 8%, boosting durability and reducing pre-ignition. Featuring a cut-back ground electrode for superior flame kernel ignitability and nickel plating for corrosion resistance, these plugs are engineered for modified engines and trusted by race drivers worldwide.

Specifications

ASIN	B000CBQ6D2
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#369,660 in Automotive ( See Top 100 in Automotive ) #2,226 in Automotive Replacement Spark Plugs
Brand	Autolite Iridium Ultra
Brand Name	Autolite Iridium Ultra
Compatible with Vehicle Type	Car
Core Material	Nickel
Customer Reviews	4.5 out of 5 stars 65 Reviews
Global Trade Identification Number	00009100026576
Included Components	4 spark plugs
Item Type Name	HP Racing Spark Plug
Item Weight	0.1 Pounds
Manufacturer	Autolite
Manufacturer Part Number	AR3923-4PK
Manufacturer Warranty Description	4 Year Limited
Model Number	AR3923-4PK
Thread Size	14mm
Top Material Type	Nickel
UPC	009100026576
Unit Count	1.0 Count
Vehicle Service Type	Car

Reviews

D**L

great spark plugs

we put the plugs in the race truck every year great plugs

28.12.2024

D**D

Preferred plug for SBF w AFR185s & 100 shot

Recommended by AFR, run them with no issues on NX 100 shot gapped at .035. The cut back ground strap and nickel plating are nice. The nickel plating with just a little anti seize makes removal a non-issue from aluminum cylinder heads. Recommend grabbing them when the price is right, sometimes it’s same or better than the standard 392X Autolites.

6.05.2022

K**N

Five Stars

AAA

22.07.2015

M**R

Did not fit vehicle

Did not fit?

21.10.2024

1**Y

plugs

fast shipping and good price

5.02.2022

2**W

Great job thank you

10.09.2024

C**N

05 vw gti 1.8t no issues and great product!

Used em in my 05 gti 1.8t high grade spark plug at affordable price. Highly recommend these plugs.

3.03.2025

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