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Autolite

Autolite Small Engine Spark Plug, 458

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
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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
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560 ratings221 reviews
How item rating is calculated
  1. 5 stars79% (443)
  2. 4 stars9% (52)
  3. 3 stars4% (23)
  4. 2 stars1% (5)
  5. 1 star7% (37)
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Showing 1-3 of 221 reviews

Jun 29, 2026
anonymous
Top Reviewer
Item details
Multipack quantity: 1
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

perfect

took my mad at the world leaf blower never wanting to starter to maybe 2 pulls after prime

Helpful?c759be10-6891-11f1-8dd0-9d3763a63fd716927780
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?c759be10-6891-11f1-8dd0-9d3763a63fd716927780
May 17, 2026
Daniel
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Nice Sparkplugs

Works well. Tractor runs much better.

Helpful?c759be10-6891-11f1-8dd0-9d3763a63fd716927780