---
product_id: 334292066
title: "Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)"
brand: "ngk"
price: "R$737"
currency: BRL
in_stock: true
reviews_count: 7
category: "Ngk"
url: https://www.desertcart.com.br/products/334292066-iridium-ix-dcpr7eix-spark-plugs-for-1999-2016-harley-davidson
store_origin: BR
region: Brazil
---

# Up to 3HP power boost Pre-gapped for perfect fit Enhanced anti-corrosion shell Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)

**Brand:** ngk
**Price:** R$737
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your Harley’s true potential with NGK Iridium IX!

## Quick Answers

- **What is this?** Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair) by ngk
- **How much does it cost?** R$737 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/334292066-iridium-ix-dcpr7eix-spark-plugs-for-1999-2016-harley-davidson)

## Best For

- ngk enthusiasts

## Why This Product

- Trusted ngk brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Iridium Edge:** 25% smaller iridium electrode means lower voltage demand and longer ignition life.
- • **OEM-Trusted Fit:** Designed specifically for 1999-2016 Harley Davidson Twin Cam models for seamless performance.
- • **Corrosion Shield:** New metal shell plating resists rust and wear, keeping your ride reliable.
- • **Power Surge Ready:** Unlock up to 3 extra horsepower for your Harley’s Twin Cam engine.
- • **Precision Pre-Gapped:** No hassle installation with factory-set gap for optimal ignition.

## Overview

The NGK Iridium IX DCPR7EIX spark plugs deliver cutting-edge ignition technology with a 25% smaller iridium electrode that reduces voltage needs and extends ignition system life. Pre-gapped for hassle-free installation, these plugs provide up to 3 horsepower gain and feature a new anti-corrosion metal shell plating, making them the perfect OEM fit for 1999-2016 Harley Davidson Twin Cam motorcycles.

## Description

DescriptionGain up to 3HP just by using these plugs! The ultimate in spark plug technology and performance from the industry leader The iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrode Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life New metal shell plating has enhanced anticorrosion qualities Come pre-gapped

Review: Working as expected - OEM fit for Harley Davidson Fatboy 103 Ci twin cam engine. Smooth starting and running.
Review: Good spark plugs for my Harley Fat Bob - Using these for the past many years, good replacement for OEM spark plugs

## Features

- Come pre-gapped
- The ultimate in spark plug technology and performance from the industry leader
- Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life
- New metal shell plating has enhanced anti corrosion qualities

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003BUCNNS |
| Assembly Required | No |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #117,070 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #818 in Ignitions |
| Brand | NGK |
| Core Material | Iridium |
| Country of Origin | USA |
| Customer Reviews | 4.7 4.7 out of 5 stars (4,566) |
| Date First Available | 25 September 2014 |
| Exterior | Painted |
| Generic Name | SPARK_PLUG |
| Item Dimensions LxWxH | 8.4 x 2.4 x 2.1 Centimeters |
| Item Weight | 40.8 g |
| Item model number | DCPR7EIX |
| Manufacturer | NGK |
| Manufacturer Part Number | DCPR7EIX |
| Model | NGK DCPR7EIX |
| Position | Front, Rear |
| Product Dimensions | 8.41 x 2.39 x 2.11 cm; 40.82 g |
| Thread Size | 12mm |
| Top Material Type | Metal |
| UPC | 700155016542 |
| Vehicle Service Type | Motorcycle |

## Product Details

- **Brand:** NGK
- **Core Material:** Iridium
- **Thread Size:** 12mm
- **Top Material Type:** Metal
- **Vehicle Service Type:** Motorcycle

## Images

![Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair) - Image 1](https://m.media-amazon.com/images/I/61RTkqyQPKL.jpg)

## Questions & Answers

**Q: Should I gap  to my owners manual spec or are they designed to work with the smaller pre-gap they came with?**
A: Harley Davidson recommends 0.40" gap.  As to "You should never gap an iridium plug", NGK's website states for Harley Davidson, these should be gapped at 0.40".  I've found many websites stating that if re-gap is needed use care not to damage the electrode or the porcelain center.  So, it's not that you should not re-gap, it's that you should be extremely careful.

**Q: Are these 14mm threads?**
A: Yes

**Q: Do you get 1 or 2 spark plugs in this price**
A: Pair / 2 plugs

**Q: Is this 6r12, if so why does it not say so ?**
A: Because these plugs are IX DCPR7EIX 99 TO 16 HARLEY-DAVIDSON

## Customer Reviews

### ⭐⭐⭐⭐⭐ Working as expected
*by B***6 on 4 December 2023*

OEM fit for Harley Davidson Fatboy 103 Ci twin cam engine. Smooth starting and running.

### ⭐⭐⭐⭐⭐ Good spark plugs for my Harley Fat Bob
*by R***. on 6 November 2023*

Using these for the past many years, good replacement for OEM spark plugs

### ⭐⭐⭐⭐⭐ Review
*by J***S on 21 July 2025*

As described. Well packaged.

## Frequently Bought Together

- NGK Iridium IX DCPR7EIX Spark Plugs Compatible with 1999-2016 Harley Davidson Twin Cam (Pair)
- K&N Motorcycle Oil Filter: High Performance, Premium, Designed to be used with Synthetic or Conventional Oils: Fits Select Harely Davidson, Buell Motorcycles, KN-171C
- K&N Motorcycle Oil Filter: High Performance, Premium, Designed to be used with Synthetic or Conventional Oils: Fits Select Harely Davidson Motorcycles, KN-171B

---

## 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.com.br/products/334292066-iridium-ix-dcpr7eix-spark-plugs-for-1999-2016-harley-davidson](https://www.desertcart.com.br/products/334292066-iridium-ix-dcpr7eix-spark-plugs-for-1999-2016-harley-davidson)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-26*