---
product_id: 648303037
title: "UF646 Ignition Coil & SP534 Double Iridium Spark Plug for 2011-2017 Ford | F-150 Explorer Transit-150 250 350 Expedition Taurus/Lincoln Navigator MKT MKS V6 3.5L Turbo BL3Z12029C DG549 C1814 5C1871"
brand: "x4xz"
price: "$244.03"
currency: USD
in_stock: true
reviews_count: 8
category: "X4 Xz"
url: https://www.desertcart.us/products/648303037-uf646-ignition-coil-and-sp534-double-iridium-spark-plug-2011
store_origin: US
region: United States of America
---

# 6-pack ignition coils for max spark Double iridium plugs, 100k km lifespan OE fit for 3.5L Ford & Lincoln engines UF646 Ignition Coil & SP534 Double Iridium Spark Plug for 2011-2017 Ford | F-150 Explorer Transit-150 250 350 Expedition Taurus/Lincoln Navigator MKT MKS V6 3.5L Turbo BL3Z12029C DG549 C1814 5C1871

**Brand:** x4xz
**Price:** $244.03
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your Ford’s potential with precision and power!

## Quick Answers

- **What is this?** UF646 Ignition Coil & SP534 Double Iridium Spark Plug for 2011-2017 Ford | F-150 Explorer Transit-150 250 350 Expedition Taurus/Lincoln Navigator MKT MKS V6 3.5L Turbo BL3Z12029C DG549 C1814 5C1871 by x4xz
- **How much does it cost?** $244.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/648303037-uf646-ignition-coil-and-sp534-double-iridium-spark-plug-2011)

## Best For

- x4xz enthusiasts

## Why This Product

- Trusted x4xz brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting Spark:** Double iridium spark plugs designed to last 100,000 km, ensuring consistent ignition and smoother cold starts.
- • **Power Up Your Drive:** 6 ignition coils engineered for flawless spark delivery, eliminating misfires and boosting engine response.
- • **Noise-Free Performance:** Built-in ferrite noise suppressor in coils reduces radio frequency interference for a quieter, cleaner ride.
- • **Precision Fit, Zero Hassle:** Direct OE replacement for multiple Ford and Lincoln 3.5L turbo engines, guaranteeing seamless installation and perfect compatibility.
- • **Durability Meets Innovation:** Premium thermoplastic connectors resist heat and thermal cycling, extending component life under tough driving conditions.

## Overview

This premium ignition coil and double iridium spark plug kit is a direct OE replacement designed specifically for 3.5L turbocharged Ford and Lincoln engines (2011-2017). Featuring six ignition coils with advanced noise suppression and six long-life double iridium spark plugs rated for 100,000 km, it ensures smoother engine starts, improved fuel efficiency, and reliable performance. Engineered for easy installation and backed by a 1-year warranty, this kit is the ultimate upgrade for drivers seeking enhanced power and durability.

## Description

Product description

Review: Very Good Quality - The quality of the product is very good and worked well. Noticeable upon start...runs smoother and better response. The plugs that come with this kit indicate compatible for F150 3.5 EcoBoost. They are compatible but at a hotter heat range of 6 vs 12 for the OEM plugs. After some research I found that many suggest a heat range of 6 for the Eco Boost. They are iridium plugs ILT6RG8G and normally used on Jaguars and Land Rovers. No cross reference will indicate compatibility until you discover these are actually NGK 95605. Then you begin to see the references toward heat range 6 as preferred using these on the 3.5 ecoboost engine. So this seems to be the best deal at this price point.
Review: OE Fit - my truck runs like new!

## Features

- ✔Compatible with: For 2015-2017 Ford Expedition 3.5L丨2013-2017 Ford Explorer 3.5L丨2011-2015 Ford F-150 3.5L丨2013-2015 Ford Flex 3.5L丨2015-2017 Ford Police Interceptor Sedan 3.5L丨2015-2017 Ford Police Interceptor Utility 3.5L丨2013-2015 Ford Taurus 3.5L丨2015-2017 Ford Transit-150 3.5L丨2015-2017 Ford Transit-250 3.5L丨2015-2017 Ford Transit-350 3.5L丨2015-2017 Ford Transit-350 HD 3.5L. For 2013-2015 Lincoln MKS 3.5L丨2013-2015 Lincoln MKT 3.5L丨2015-2017 Lincoln Navigator 3.5L. Please see the second main picture for more vehicles before purchase.
- ✔Excellent Function: A faulty ignition coil & spark plug may result in engine misfire, rough engine idle, decrease in power, poor fuel economy etc. Every component either matches or improves on the OE design to ensure fast and easy installation with superior performance and reliability, to provide superior cold-start performance and a smoother running engine.
- ✔High-quality: The spark plug is double iridium spark plug, have a much longer working life, can work 100000 kilometers, consistent and stable spark. The ignition coil made of premium quality materials, stainless-steel spring with internal ferrite noise suppressor prevents radio frequency interference, advanced thermoplastic coil connector ensures proper connection and resists fractures caused by heat and thermai cycling, to better transfer the high voltage created by the engine‘s spark plug.
- ✔OE# UF646&SP534. Replace# DG549, IC749, 2505-484814, BL3Z-12029-C, E1146, 673-6300, 5C1871, SP534, SP537, SP580, SP528, CYFS-12-Y3. Package included: Ignition Coil Packs x6, Double Iridium Spark Plug x6. Not included instruction manual, easy to install.
- ✔After-Sales Service: We offer 24 hours customer service and 1 year product service, If you are encounter product installation, product quality and other problems, please feel free to contact us.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D62FH8BT |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #1,291 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Ignition Coils |
| Brand | X4XZ |
| Brand Name | X4XZ |
| Compatible with Vehicle Type | Truck |
| Connector Gender | Male |
| Customer Reviews | 4.3 out of 5 stars 34 Reviews |
| Included Components | Ignition Coil & Double Iridium Spark Plug |
| Installation Type | [Assumed] Screw-In or Bolt-On |
| Item Type Name | Ignition Coil & Double Iridium Spark Plug |
| Item Weight | 1.75 Kilograms |
| Manufacturer | X4XZ |
| Manufacturer Part Number | UF646+SP534 |
| Manufacturer Warranty Description | 1 YEAR |
| Model Number | UF646+SP534 |
| OEM Equivalent Part Number | DG549, IC749, 2505-484814, BL3Z-12029-C, E1146, 673-6300, 5C1871, SP534, SP537, SP580, SP528, CYFS-12-Y3 |
| Part Interchange Info | UF646 can be used as a direct replacement for DG549, IC749, 2505-484814, BL3Z-12029-C, E1146, 673-6300, 5C1871, SP534, SP537, SP580, SP528, CYFS-12-Y3 ignition coils in Ford and Lincoln vehicles with 3.5L engines, such as the Ford Expedition (2015-2017), Ford Explorer (2013-2017), Ford F-150 (2011-2015), Ford Flex (2013-2015), Ford Police Interceptor Sedan (2015-2017), Ford Police Interceptor Util… |
| Vehicle Service Type | Truck |

## Product Details

- **Brand:** X4XZ
- **Connector Gender:** Male
- **Installation Type:** [Assumed] Screw-In or Bolt-On
- **Item Weight:** 1.75 Kilograms
- **Vehicle Service Type:** Truck

## Images

![UF646 Ignition Coil & SP534 Double Iridium Spark Plug for 2011-2017 Ford | F-150 Explorer Transit-150 250 350 Expedition Taurus/Lincoln Navigator MKT MKS V6 3.5L Turbo BL3Z12029C DG549 C1814 5C1871 - Image 1](https://m.media-amazon.com/images/I/71L0rRGdDjL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very Good Quality
*by T***S on May 19, 2025*

The quality of the product is very good and worked well. Noticeable upon start...runs smoother and better response. The plugs that come with this kit indicate compatible for F150 3.5 EcoBoost. They are compatible but at a hotter heat range of 6 vs 12 for the OEM plugs. After some research I found that many suggest a heat range of 6 for the Eco Boost. They are iridium plugs ILT6RG8G and normally used on Jaguars and Land Rovers. No cross reference will indicate compatibility until you discover these are actually NGK 95605. Then you begin to see the references toward heat range 6 as preferred using these on the 3.5 ecoboost engine. So this seems to be the best deal at this price point.

### ⭐⭐⭐⭐⭐ OE Fit
*by A***S on November 25, 2025*

my truck runs like new!

### ⭐⭐⭐⭐⭐ Bobinas y bujías Ford F150
*by C***O on February 16, 2026*

Excelente kit de repuesto todo salió bien

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-28*