SAVE 15% OFF ANY ORDER | 20% OFF $100+ | ONLINE ONLY
USE CODE
SPRING
*
Exclusions apply.
Advance Auto Parts Logo
Choose a Store
  • Shop All
  • Replacement Parts
  • Performance Parts
  • Accessories
  • Oil & Fluids
  • Special Offers
  • Speed Perks
  • Advice & How-Tos
  • Project Guides
  • FAQ / Help Desk
Share
Product thumb
Product main large
Loading...
How Would You Like To Get This Item?

Store Pickup

Loading...Loading...Loading...

Same Day Home Delivery

Loading...Loading...Loading...

Home Delivery

Loading...Loading...Loading...
Loading...
Loading...

Product Information

Product Details
Part No. AR52
Warranty Details (2 YR REPLACEMENT IF DEFECTIVE)
Autolite Racing spark plugs are engineered with a cut-back ground electrode, anti-corrosive nickel plating, and large ground electrode that deliver better heat transfer, ensuring maximum engine performance on the track.

Product Features:
  • Engineered with a cut-back ground electrode that delivers optimal ignitability of the flame kernel and better heat transfer, leading to quicker starts.
  • The yttrium-enhanced alloy enables up to 8% reduction in ground wire temperature for colder heat ranges designed to enable performance modifications and handle intense conditions.
  • Designed with an anti-corrosive nickel-plating prevents rusting better than black oxide, allowing the plug to maintain its durability and efficiency.
  • Its high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength while preventing flash-over.
Specifications
Center Electrode Core Material:
Copper

Center Electrode Design:
Standard

Center Electrode Projection:
Mid Projection

Center Electrode Tip Material:
Nickel

Electrical Terminal Type:
Removable Nut

Electrode Tip Material:
Non Resistor

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Design:
Standard

Ground Electrode Tip Material:
Nickel

Hex Size:
13/16 in

Hex Type:
Hex

Indexed:
No

Insulator Material:
Ceramic

Manufacturer Heat Range:
11

Pre-Gap Size:
0.034 in

Reach:
0.75 in

Resistor:
Non Resistor

Resistor Type:
No

Seat Type:
Flat

Skirt:
Yes

Thread Diameter:
14 mm

Tip Configuration:
Power

Washer Included:
Yes

Wrench Diameter:
13/16 in
Loading...
Loading...
Loading...
No results
Loading...
Feedback
TOP REPLACEMENT PARTS
Brake Pads & Shoes
Brake Rotors
Alternators
Water Pumps
Starters
Brake Calipers

Order Lookup

Help Desk

Store Locator

In Store Services

Mobile App

CUSTOMER SUPPORT
Accessibility Statement
Contact Us
Forgot Password
Help Desk
In Store Pickup
In Store Services
Order Tracking
Recall Information
Return Policy
Same Day Delivery
© 2025 Advance Auto Parts
Privacy Policy
Terms of Use
Site Map
ADVANCING A WORLD IN MOTION®