--- product_id: 766634627 title: "Spark Plugs E3.109 Premium Racing Spark Plug w/DiamondFIRE Technology (Pack of 2)" brand: "e3" price: "167 zł" currency: PLN in_stock: true reviews_count: 6 category: "E3" url: https://www.desertcart.pl/products/766634627-spark-plugs-e3-109-premium-racing-spark-plug-w-diamondfire store_origin: PL region: Poland --- # Boosts power output +10HP Improves fuel efficiency noticeably DiamondFIRE tech for faster flame spread Spark Plugs E3.109 Premium Racing Spark Plug w/DiamondFIRE Technology (Pack of 2) **Brand:** e3 **Price:** 167 zł **Availability:** ✅ In Stock ## Summary > ⚡ Ignite your ride with race-grade spark innovation! ## Quick Answers - **What is this?** Spark Plugs E3.109 Premium Racing Spark Plug w/DiamondFIRE Technology (Pack of 2) by e3 - **How much does it cost?** 167 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/766634627-spark-plugs-e3-109-premium-racing-spark-plug-w-diamondfire) ## Best For - e3 enthusiasts ## Why This Product - Trusted e3 brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Cross-compatible with top brands and backed by a limited lifetime warranty. - • **Fuel-Smart Efficiency:** Cut fuel consumption and save money on every mile. - • **Race-Ready Power Boost:** Unlock up to 10 extra horsepower with precision engineering. - • **Precision Fit for Racing:** 14mm thread and taper seat designed for high-performance engines. - • **DiamondFIRE Ground Electrode:** Patented tech ensures rapid, stable combustion for peak engine performance. ## Overview The E3.109 Premium Racing Spark Plug features patented DiamondFIRE technology with a dual-leg ground electrode for superior heat transfer and faster flame propagation. Designed specifically for racing applications, it enhances engine power, reduces fuel consumption, and lowers emissions. Compatible with major spark plug brands and backed by a limited lifetime warranty, this pack of two plugs delivers durable, high-performance ignition for serious enthusiasts. ## Description Buy E3 Spark Plugs E3.109 Premium Racing Spark Plug w/DiamondFIRE Technology (Pack of 2): Spark Plugs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Use the E3 spark plug - I've been a mechanic since 1975, what people don't understand is that they don't have to put the spark plus that they call for in your lawnmower. I use the E3 plug. My lawnmower starts easy an I use less gas. Clean the plug an it will last a long time. Review: Good spark - Good plugs, gave me 10 more hp and good gas mileage ## Features - The information below is per-pack only - HIGH-PERFORMANCE DESIGN: Built for racing applications, the E3.109 spark plug is engineered to increase power, reduce fuel consumption, and improve hydrocarbon emissions - DIAMONDFIRE TECHNOLOGY: Features E3’s patented DiamondFIRE ground electrode secured with dual legs for excellent heat transfer and unmatched performance stability - OPTIMAL ENGINE EFFICIENCY: The patented DiamondFIRE ground electrode design enhances engine stability by promoting faster flame propagation, enabling a more complete burn of the fuel/air mixture - RACING-SPECIFICATIONS: Specifically designed for high-performance racing applications, this spark plug features a 14mm thread, 0.708” reach, 5/8” hex, and a taper seat - COMPATIBILITY AND DURABILITY: Cross-compatible with Autolite AR93, AR94; Champion 280, 685, S59YC, S61YC; and NGK 7891, R5724-9; backed by a limited lifetime warranty, ensuring long-lasting durability and reliable performance ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CHMV667X | | Best Sellers Rank | #1,075,111 in Automotive ( See Top 100 in Automotive ) #5,739 in Automotive Replacement Spark Plugs | | Brand Name | E3 | | Core Material | Copper | | Customer Reviews | 4.2 4.2 out of 5 stars (63) | | Item Type Name | Spark Plug | | Item Weight | 3.2 ounces | | Manufacturer | E3 Spark Plugs | | Manufacturer Part Number | E3.109 | | Model Number | E3.109 | | Unit Count | 2.0 Count | ## Images ![Spark Plugs E3.109 Premium Racing Spark Plug w/DiamondFIRE Technology (Pack of 2) - Image 1](https://m.media-amazon.com/images/I/61pQSAimCaL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Use the E3 spark plug *by M***E on May 31, 2024* I've been a mechanic since 1975, what people don't understand is that they don't have to put the spark plus that they call for in your lawnmower. I use the E3 plug. My lawnmower starts easy an I use less gas. Clean the plug an it will last a long time. ### ⭐⭐⭐⭐⭐ Good spark *by R***E on January 30, 2025* Good plugs, gave me 10 more hp and good gas mileage ### ⭐⭐⭐⭐⭐ I have a cold air intake on the journey and also a performance chip *by G***P on October 7, 2023* Work very well w cold air intake and a performance chip added about 50 more hourse power --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/766634627-spark-plugs-e3-109-premium-racing-spark-plug-w-diamondfire](https://www.desertcart.pl/products/766634627-spark-plugs-e3-109-premium-racing-spark-plug-w-diamondfire) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-09*