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Autolite

Autolite Small Engine Spark Plug, 458

4.5 stars out of 517 reviews
(4.5)|
517 ratings
Autolite Small Engine Spark Plug, 458Autolite Small Engine Spark Plug 4583 pack Autolite Small Engine Spark Plug 4582 pack Autolite Small Engine Spark Plug 458
Pack Size:Single
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Key item features

  • Compatibility: The Autolite Small Engine Spark Plug, 458 replaces Champion (J19LM, RJ19LM, RJ19HX), NGK (B2), and Briggs & Stratton (796112S, 591868) spark plugs.
  • Durable Seal: Copper-glass seal bonds insulator, terminal post, and center electrode together, ensuring full voltage at the spark gap and a gas-tight seal.
  • Flash-Over Protection: Multi-rib insulator design reduces the risk of flash-over, enhancing safety and performance.
  • Enhanced Strength: One-piece terminal post adds strength and durability to the spark plug.
  • RFI Reduction: Built-in resistor reduces radio frequency interference (RFI) and minimizes electrode erosion.
  • Precision Threads: Cold-formed steel shell with precision rolled threads ensures a secure fit and easy installation.
  • Performance Core: Full copper core electrode provides better performance under various conditions.
  • Usage Recommendation: Autolite recommends consulting your equipment's repair manual for specific instructions on changing spark plugs.
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4.5 out of 5 stars
stars517 ratings213 reviews
How item rating is calculated
  1. 5 stars79% (408)
  2. 4 stars9% (47)
  3. 3 stars4% (22)
  4. 2 stars1% (5)
  5. 1 star7% (35)

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Showing 1-3 of 213 reviews

Dec 21, 2025
Mark
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Very good plugs next to champion. I probably believe they're the best plugs I've ever put in my Harley Davidson.

Helpful?3cdde9e0-0b0e-11f1-85c1-b9be452911c716927780
Feb 10, 2026
frank
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Ordered two packages of 4 they came in 3 orders

Helpful?3cdde9e0-0b0e-11f1-85c1-b9be452911c716927780
Apr 26, 2024
Bourneblogger
5 out of 5 stars review

Verified Purchase

Replaced Torch F5RTC

This replaced a Torch F5RTC spark plug for my Yardmax 20” mower with Honda motor. It requires a 13/16 deep socket spark plug wrench with arm attachment to get to it. I bought a socket wrench set for $20 at Walmart, too. Took 5 mins once I had all the parts.

Helpful?3cdde9e0-0b0e-11f1-85c1-b9be452911c716927780