--- product_id: 2043837 title: "E3 Spark Plugs E3.46 Premium Automotive Spark Plug with DiamondFIRE Technology, 14mm Thread, 0.750-Inch Reach, Gasket Seat, Resistor, Pack of 1" brand: "e3" price: "VT3430" currency: VUV in_stock: true reviews_count: 10 category: "E3" url: https://www.desertcart.vu/products/2043837-e3-spark-plugs-e3-46-premium-automotive-spark-plug-diamondfire store_origin: VU region: Vanuatu --- # 12% more power boost 13% improved fuel efficiency Lower emissions & cleaner burn E3 Spark Plugs E3.46 Premium Automotive Spark Plug with DiamondFIRE Technology, 14mm Thread, 0.750-Inch Reach, Gasket Seat, Resistor, Pack of 1 **Brand:** e3 **Price:** VT3430 **Availability:** ✅ In Stock ## Summary > ⚡ Ignite your classic ride with power, efficiency, and eco-edge! ## Quick Answers - **What is this?** E3 Spark Plugs E3.46 Premium Automotive Spark Plug with DiamondFIRE Technology, 14mm Thread, 0.750-Inch Reach, Gasket Seat, Resistor, Pack of 1 by e3 - **How much does it cost?** VT3430 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/2043837-e3-spark-plugs-e3-46-premium-automotive-spark-plug-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 - • **Fuel & Power Upgrade:** Delivers up to 12% more power and 13% better fuel economy - • **Durability Guaranteed:** Yttrium-enhanced alloy with 5-year/100,000-mile warranty - • **DiamondFIRE Technology:** Patented side-wire electrode for faster, cleaner combustion - • **Eco-Friendly Performance:** Reduces harmful emissions and carbon buildup effectively - • **Classic Car Compatibility:** Optimized for domestic vehicles from the 60s to early 90s ## Overview The E3.46 Premium Spark Plug features patented DiamondFIRE side-wire technology that enhances combustion efficiency, delivering up to 12% more power and 13% better fuel economy. Designed for domestic vehicles from the 60s to early 90s, it reduces emissions and carbon buildup while ensuring long-lasting durability with a Yttrium-enhanced alloy and a 5-year/100,000-mile warranty. ## Description Product Description The E3.46 automotive spark plug is engineered to provide enhanced performance for a wide variety of applications, particularly for vehicles from the 1960s to early 1990s, with a focus on imports. This 14mm, 0.750” reach plug with a gasket seat features E3’s patented DiamondFIRE technology, which secures the electrode to the shell with three legs, optimizing heat transfer and increasing turbulence within the cylinder. The result is improved engine efficiency, smoother acceleration, and faster starts. The unique DiamondFIRE side wire has been proven to boost power, reduce fuel consumption, and lower hydrocarbon emissions for long-term use, while the full-size center electrode ensures optimal performance. Features a fixed gap design that creates an edge-to-edge spark path, replenishing the spark zone with a fresh fuel/air charge, resulting in better combustion and exposing the flame front more directly to the piston head. These features collectively contribute to increased power output, reduced gasoline consumption, lower emissions, and a longer lifespan for the spark plug. Backed by a five-year or 100,000-mile warranty, ensuring reliable, long-lasting performance. Compatible with various applications, our automotive spark plug is a high-performance solution designed to meet the needs of classic vehicle owners, improving engine operation and reducing maintenance costs. desertcart.com Review: Works Great! - Using it in my pressure washer and works great! Review: ARE E3 MORE BETTER ? - Everyone told me E3 spark plugs are a fancy Gimmick. BUT they are real good plugs ! 10% better gas milage with no fowling. MY tractor has a set for 10 years with no trouble. Thanks E3 ## Features - COMPATIBILITY WITH DOMESTIC VEHICLES: Perfect for a wide range of domestic applications, especially cars from the 60s to early 90s, offering a significant boost in power, fuel efficiency, and emission control for classic engines - DIAMONDFIRE TECHNOLOGY: Patented side-wire electrode design ensures faster, more complete combustion, optimizing engine efficiency, improving power output, and reducing harmful emissions - MORE POWER AND FUEL EFFICIENCY: E3 Spark Plugs deliver up to 12% more power and up to 13% better fuel economy in small engines, and up mid-single digits on automotive applications, helping to enhance overall engine performance and reduce fuel consumption across a wide range of vehicles - LOWER EMISSIONS: The more complete burn helps to reduce emissions, minimize carbon buildup, promote cleaner combustion, and support compliance with modern environmental and emissions standards - LONG-LASTING PERFORMANCE: Built with Yttrium-enhanced alloy for durability and pre-ignition prevention; backed by a 5-year/100,000-mile limited warranty for reliable, extended use without frequent replacements ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000BPQGSE | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #311,551 in Automotive ( See Top 100 in Automotive ) #1,933 in Automotive Replacement Spark Plugs | | Brand Name | E3 | | Compatible with Vehicle Type | Car | | Core Material | Copper | | Customer Reviews | 4.6 4.6 out of 5 stars (216) | | Gap Size | 0.04 Inches | | Global Trade Identification Number | 00894489000466, 00894489000473 | | Included Components | (1) Automotive Spark Plug | | Item Type Name | Spark Plugs | | Item Weight | 22.68 g | | Manufacturer | E3 Spark Plugs | | Manufacturer Part Number | E3.46 | | Manufacturer Warranty Description | 5 Years or 100,000 miles parts | | Model Number | E3.46 | | OEM Equivalent Part Number | E3.46 | | Thread Size | 14mm | | Top Material Type | Alloy Steel | | UPC | 894489000466 759173601957 894489000473 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** E3 - **Core Material:** Copper - **Thread Size:** 14mm - **Top Material Type:** Alloy Steel - **Vehicle Service Type:** Car ## Images ![E3 Spark Plugs E3.46 Premium Automotive Spark Plug with DiamondFIRE Technology, 14mm Thread, 0.750-Inch Reach, Gasket Seat, Resistor, Pack of 1 - Image 1](https://m.media-amazon.com/images/I/41BJKw2p3cL.jpg) ![E3 Spark Plugs E3.46 Premium Automotive Spark Plug with DiamondFIRE Technology, 14mm Thread, 0.750-Inch Reach, Gasket Seat, Resistor, Pack of 1 - Image 2](https://m.media-amazon.com/images/I/51Op20eYCXL.jpg) ![E3 Spark Plugs E3.46 Premium Automotive Spark Plug with DiamondFIRE Technology, 14mm Thread, 0.750-Inch Reach, Gasket Seat, Resistor, Pack of 1 - Image 3](https://m.media-amazon.com/images/I/41HxnkjgHxL.jpg) ![E3 Spark Plugs E3.46 Premium Automotive Spark Plug with DiamondFIRE Technology, 14mm Thread, 0.750-Inch Reach, Gasket Seat, Resistor, Pack of 1 - Image 4](https://m.media-amazon.com/images/I/51mAjoJ14rL.jpg) ![E3 Spark Plugs E3.46 Premium Automotive Spark Plug with DiamondFIRE Technology, 14mm Thread, 0.750-Inch Reach, Gasket Seat, Resistor, Pack of 1 - Image 5](https://m.media-amazon.com/images/I/61RsrvC4G6L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works Great! *by C***J on December 7, 2024* Using it in my pressure washer and works great! ### ⭐⭐⭐⭐⭐ ARE E3 MORE BETTER ? *by T***. on May 31, 2025* Everyone told me E3 spark plugs are a fancy Gimmick. BUT they are real good plugs ! 10% better gas milage with no fowling. MY tractor has a set for 10 years with no trouble. Thanks E3 ### ⭐⭐⭐⭐⭐ Quick delivery, amazing product. Works very well. *by F***S on January 20, 2020* Received in good condition and good time. Quick delivery. Amazing product, felt the difference in power of my car straight off. ## Frequently Bought Together - E3 Spark Plugs E3.46 Premium Automotive Spark Plug with DiamondFIRE Technology, 14mm Thread, 0.750-Inch Reach, Gasket Seat, Resistor, Pack of 1 - 140-3280 Air Filter Compatible with Onan Micro Quiet Generator Air Filter 3600 4000 48-2017 --- ## 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.vu/products/2043837-e3-spark-plugs-e3-46-premium-automotive-spark-plug-diamondfire](https://www.desertcart.vu/products/2043837-e3-spark-plugs-e3-46-premium-automotive-spark-plug-diamondfire) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-05*