15% OFF ORDERS $35+ | 20% OFF $100+ | ONLINE ONLY
USE CODE
HOLIDAYSAVE
*
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
Loading...
Share
Product thumb
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...
Loading...Loading...Loading...Loading...Loading...

Product Information

Product Details
Part No. 7993
Warranty Details (60 DAY REPLACEMENT IF DEFECTIVE)
Product Features:
  • DESIGNED FOR RACING: Conventional nickel alloy center electrode with V-groove provides consistent performance
  • RECOMMENDED USAGE: Racing use only, featuring special configurations and designs to ensure durability and ignitability
  • NGK's OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
Specifications
Center Electrode Core Material:
Copper

Center Electrode Design:
Standard

Center Electrode Insulator Tip Projection:
0.12 in

Center Electrode Projection:
Mid Projection

Center Electrode Tip Material:
Nickel

Electrical Terminal Type:
Non-Removable Nut

Electrode Core Material:
nickel with V groove

Electrode Tip Material:
nickel with V groove

Grade Type:
Performance

Ground Configuration:
J-Gap

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Design:
Standard

Ground Electrode Tip Material:
Nickel

Ground Strap Quantity:
1

Hex Size:
5/8" (16mm)

Insulator Height:
2.07 in

Insulator Material:
Ceramic

Manufacturer Heat Range:
10

Pre-Gap Size:
.020 in

Reach:
0.689 in

Resistance:
0.0 ohm

Resistor:
No

Resistor Type:
No

Seat Type:
Tapered

Shorty Spark Plug:
No

Skirt:
No

Skirt Length:
0.0 in

Thread Diameter:
0.551 in

Thread Size:
M14 - 1.25

Tip Configuration:
Loose

Washer(s) Included:
No

Wrench Diameter:
5/8 in
Loading...
Loading...Loading...Loading...Loading...Loading...
Loading...
Loading...
Loading...Loading...Loading...Loading...Loading...
No results
Loading...
Loading...Loading...Loading...Loading...Loading...
Feedback
Be The First To Know About Deals And Promotions.
Plus, create an account to receive $5 off of $20 or more.
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®