---
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: "NT$727"
currency: TWD
in_stock: true
url: https://www.desertcart.tw/products/2043837-e3-spark-plugs-e3-46-premium-automotive-spark-plug-diamondfire
store_origin: TW
region: Taiwan
---

# 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:** NT$727
**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?** NT$727 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/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

E3 Spark Plugs E3.46 Premium Automotive Spark Plug with DiamondFIRE Technology, 14mm Thread, 0.750-Inch Reach, Gasket Seat, Resistor, Pack of 1

## 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 |
|---------------|-------|
| Brand | E3 |
| Core Material | Copper |
| Gap Size | 0.04 Inches |
| Thread Size | 14mm |
| Top Material Type | Alloy Steel |
| Vehicle Service Type | Car |
| Global Trade Identification Number | 00894489000473, 00894489000466 |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 894489000466 759173601957 894489000473 |
| OEM Part Number | E3.46 |
| Manufacturer | E3 Spark Plugs |
| Model | E3.46 |
| Item Weight | 0.8 ounces |
| Product Dimensions | 5.85 x 1.65 x 1.45 inches |
| Country of Origin | China |
| Item model number | E3.46 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | E3.46 |

## Product Details

- **Brand:** E3
- **Core Material:** Copper
- **Gap Size:** 0.04 Inches
- **Thread Size:** 14mm
- **Top Material Type:** Alloy Steel

## 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)

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**Shop now:** [https://www.desertcart.tw/products/2043837-e3-spark-plugs-e3-46-premium-automotive-spark-plug-diamondfire](https://www.desertcart.tw/products/2043837-e3-spark-plugs-e3-46-premium-automotive-spark-plug-diamondfire)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-01-24*