E3 Spark Plug E3.10 Lawn and Garden Spark Plug, Pack of 1

TLDR Review: E3.10 Spark Plug

Published: August 3rd, 2025

Pros

  • Effective replacement that significantly improved starting performance and engine responsiveness.
  • Offers superior performance compared to basic spark plugs, with noticeable enhancement.
  • Easy to install and ensures smooth operation and starting for both lawn mowers and snowblowers.
  • Provides a fast start for push mowers, consistently starting on the first pull.
  • Environmentally friendly, satisfying users with its green benefits.
  • Lonasting durability, with users reporting many years of successful use before needing replacement.
  • Considered a good value for the performance enhancement received despite a higher price point.

Cons

  • Requires carburetor adjustments due to increased idle RPMs after installation.
  • Some users felt uncertain about selecting the correct model initially.

Bottom Line

The E3.10 Lawn and Garden Spark Plug shines as a high-performance, environmentally friendly replacement that elevates your equipment's performance, especially lawn mowers and snowblowers. While its higher price point may make you pause, the investment is often rewarded with improved smoothness and reliability. If you're looking for noticeable performance gains and smooth operation, this spark plug is worth considering, but just be prepared for potential carburetor adjustments due to changes in idle RPMs.

Lowest at any Popular Retailer
$5.98 at Amazon

Where to Buy

Prices last updated: August 3rd 2025 1:37 pm
Get ShopSavvy
ShopSavvy is totally free and works on all popular phones and browsers
Download ShopSavvy App

Compare prices for anything in real-time, set price alerts, watch for deals by keyword, and much more

Install ShopSavvy Browser Extension

Compare and track prices automatically while you shop online at thousands of websites.

© 2025 Monolith Technologies, Inc. All rights reserved..