Ignitions and Electrical› Ignition Components

Autolite

XTREME PERF SPK PLG BOX/4

$21.23

SKU: A035 AXP3923

In Stock
In Stock
Ships by Jun 18
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Autolite XP3923 is an XP Iridium spark plug designed for durability and efficiency. It features iridium and platinum electrodes that resist gap erosion, ensuring a longer lifespan and optimal fuel efficiency.

The fine wire center electrode enhances ignitability, while the platinum ground electrode is shaped for optimal performance. This spark plug has a 0.6mm center electrode projection and a 100k mile longevity rating.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandAutolite
Part NumberA035 AXP3923

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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