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AUTOLITE AUTOLITE PLUG XS3923

$ 14.33

In stock

Spark Plug – XS3923

Part #: 21030414

AUTOLITE quality guaranteed.

Available for ship to store or drop ship.


Free Shipping on New Part orders over $100

AUTOLITE AUTOLITE PLUG XS3923

Product Specifications

Weight 0.10 lbs
Part Number

21030414

UPC Code

009100261656

Punctuated Part Number

2103-0414

Vendor Part Number

XS3923

Vendor Punctuated Part Number

XS3923

Commodity Code

2103

Commodity Group

ELECTRICAL SYSTEM GROUP

Commodity Type

SPARK PLUG GROUP

MPN

21030414

Brand

AUTOLITE

UPC

009100261656

Get the performance you need with the AUTOLITE AUTOLITE PLUG XS3923, available now at Knobtown Cycle. Kansas City’s trusted source for quality motorcycle parts.

Product Description

AUTOLITE PLUG XS3923

  • More focused ignition to prevent fouling than leading standard plug
  • .6mm finewire design with Sport V-trim ground electrode engineered to offer improved ignitability and durability over a standard plug
  • Up to 26% quicker starts than leading standard plug
  • More horsepower and better fuel efficiency than standard plug
  • Meets or exceeds OEM design

Part Locations

Location Available
Wisconsin (WI) 18
New York (NY) 0
Texas (TX) 0
Nevada (NV) 0
North Carolina (NC) 0
National Total 18

Stock levels last updated: December 26, 2025 1:39 AM

Professional Installation Available

Knobtown Cycle offers professional installation services. Contact us via a service request to learn more.


Thank you for Shopping at Knobtown Cycle!

When you shop with us, you’re not just buying motorcycle parts — you’re supporting a small, family-run business rooted right here in the heartland of America. Every order helps us keep riders on the road and fuels our passion for serving the motorcycle community.
From all of us at Knobtown Cycle, thank you for choosing local and riding with us.

Kit Fox – Owner Knobtown Cycle

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Need help with installation?  Our Service Department based in Kansas City, Missouri is here for you.  Fill out a Service Request and lets get you rolling!