My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Autolite 458DP Copper Non-Resistor Spark Plug for Small Engines

Manufacturer

Part Number

458DP
Sale Price

$3.01

In Stock (8)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Autolite 458DP is a copper core non-resistor spark plug designed for small engines including lawn mowers, tractors, chainsaws, snowblowers, leaf blowers, and other outdoor power equipment. This spark plug features traditional nickel alloy electrodes and a full copper core center electrode that improves heat dissipation and resistance to fouling.

Key Features:

  • Copper core center electrode provides superior thermal control and reduces fouling
  • High nickel alloy center and ground electrodes for extended service life
  • Non-resistor design delivers stronger spark signal for older ignition systems
  • Copper-glass seal bonds insulator, terminal post, and center electrode for 100% leak-proof, gas-tight seal
  • Multi-rib ceramic insulator reduces risk of flash-over and prevents misfires
  • Cold-formed steel shell with precision rolled threads ensures secure fit and easy installation
  • One-piece terminal post adds strength and durability
  • Power tip extends into combustion chamber to aid self-cleaning and reduce pre-ignition

Specifications:

  • Thread Diameter: 14mm
  • Thread Pitch: 1.25mm
  • Reach: 9.5mm (3/8")
  • Hex Size: 13/16" (21mm)
  • Gap: 0.031" (0.8mm)
  • Heat Range: 9
  • Seat Type: Gasket
  • Terminal Type: Solid
  • Resistor: No

Torque Specifications: Cast Iron: 26-29 lb-ft | Aluminum: 15-22 lb-ft

Cross References: Replaces Champion J19LM, RJ19LM, RJ19HX; NGK B2; Briggs & Stratton 796112S, 591868

Backed by Autolite's 2-year limited warranty and engineered for reliable performance with up to 30,000 miles of service life.

Great prices. Fast shipping. Huge inventory.

A+shipping was quick, communications were quick

Good web purchase

Great site, fast ordering and processing. Found the mangaflow cat back I wanted for $180 cheaper then anywhere else. Can't wait to get my exhaust in

thank you

I bought a Bestop for my Samari and the service was great and the top fit perfect. The online site is easy to use and quick.

Good pricing. Order processing is fast and easy.

It is the way all on-line purchases should go. I got the item in 2 days, even before the email that it had shipped! Only negative is that the shipping cost was 35% the item cost. But it was still less that others with "free" shipping.

Just received my order! I placed the order Sunday night and received it on Tuesday, super fast shipping! The SS vent caps look great and arrived in perfect condition. Thanks!

Fast , Smooth transaction

We found what we needed at the right price.

so far the experience has been great!

User friendly, no problems hopefully product will be exactly what was ordered!

Had what I wanted at a very competitive price. Speed of which it was sent out for delivery was exellent.

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy