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 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. 258DP
Warranty Details (2 YR REPLACEMENT IF DEFECTIVE)
The Copper Non-Resistor Spark Plug is expertly crafted to keep your outdoor equipment running smoothly, whether it's a mower, tractor, chainsaw, snowblower, or leaf blower. Built with a high nickel alloy center and ground electrode, this spark plug ensures extended life and reliable performance. Its multi-rib ceramic insulator minimizes the risk of flash-over, while the copper-glass seal creates a gas-tight bond for enhanced durability. The cold-formed steel shell with precision-rolled threads reduces wear and boosts longevity, making it a dependable choice for regular-grade applications. Featuring a flat seat type and a short projection standard center electrode, this spark plug is designed for consistent ignition and optimal functionality. With nickel-tipped electrodes, it delivers excellent durability and value, ensuring your equipment operates at its best all year long.

Product Features:
  • Specially engineered high nickel alloy center and ground electrode provides extended life.
  • It's multi-rib ceramic insulator reduces danger of flash-over while its copper-glass seal bonds the center electrode and terminal post, providing a gas-tight internal seal.
  • Designed with a cold-formed steel shell precision rolled threads that provide greater durability and reduced wear.
  • Flat seat design enhances compatibility and secure fit for optimal functionality in various outdoor equipment.
Specifications
Center Electrode Core Material:
Copper

Center Electrode Design:
Standard

Center Electrode Projection:
Short Projection

Center Electrode Tip Material:
Nickel

Electrical Terminal Type:
Non-Removable Nut

Electrode Tip Material:
Non Resistor

Grade Type:
Regular

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Design:
Standard

Ground Electrode Tip Material:
Nickel

Hex Size:
3/4 in

Hex Type:
Hex

Indexed:
No

Insulator Material:
Ceramic

Manufacturer Heat Range:
2

Pre-Gap Size:
0.025 in

Reach:
0.374 in

Resistor:
Non Resistor

Resistor Type:
No

Seat Type:
Flat

Skirt:
Yes

Thread Diameter:
14 mm

Tip Configuration:
Standard

Washer(s) Included:
Yes

Wrench Diameter:
3/4 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®