Can a bad ignition coil cause a \u0026#39;Permanent\u0026#39; P0300 code?

Yes. If the coil\u0026#39;s internal oxygen-free copper windings are degraded, it may produce a spark that is too weak for the ECU to detect as a \u0026#39;clean\u0026#39; combustion, triggering a persistent P0300 (Random Misfire) code. Replacing the full set of Ford 6.2 coil packs is the most reliable way to clear these codes.

BDFHYK ignition coil pack and iridium spark plug set with 2 pins OE replacement design for Ford 6.2L V8 engines.

Car fitment guide for Ford F-250 F-350 Super Duty and E-450 V8 6.2L engines ignition coil compatibility.

BDFHYK high-performance ignition coil internal structure featuring primary and secondary coils with magnetic core for stable spark.

BDFHYK ignition coil components breakdown highlighting flexible high-temp silicone and shock resistance features.

BDFHYK ignition coil fitment guide for Ford F-250 F-350 and Lincoln LS 3.9L V8 featuring 2-pin connector design and OE replacement numbers FD506 DG515 HL3Z12029C.

Ignition coil replacement comparison showing basically no carbon deposits after using BDFHYK oxygen-free copper windings.

Iridium spark plug jump-start technology boosting ignition power by 20 percent to resolve engine jitter and save fuel.

BDFHYK Ignition Coil Pack UF834 and Iridium Spark Plugs 6509 Fits Ford F-250 F-350 E-350 E-450 Super Duty 2018-2020 6.2L V8, Set of 8

$141.49

Product Detail

Type Ignition Coil + Spark Plug Set
SKU BDDLZ-BD-05-10462-CK
Engine
6.2L V8
OE Number Coil: UF-834, UF834, HL3Z12029C, HL3E12029BA, UF-865, UF865, HL3Z12029B
OE Number For Spark plug:6509

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Is your Ford F-250 stuttering under heavy loads or suffering from a rough idle during cold starts? For the high-torque 6.2L V8 engines found in 2018–2020 F-Series Super Duty trucks, ignition failure is a common roadblock to peak performance. The BDFHYK ignition coil set is a professional-grade Ford 6.2 coil pack replacement designed to restore your truck's original towing power and throttle response.

Eliminate engine misfires and restore peak towing power with the BDFHYK Ignition Coil + Spark Plug Set. Engineered for high-output V8 engines, this professional-grade combo features UF834 coils and 6509 iridium spark plugs to ensure stable combustion and a smoother idle. Whether you're hauling heavy loads or daily driving, our BDFHYK ignition coil technology provides the reliability your Ford 6.2 coil pack system demands.

Performance Guaranteed: Enjoy a 20% ignition power boost and improved fuel efficiency.
Fast & Reliable: Fast 2–7 day U.S. delivery from local warehouses.
Risk-Free: Backed by a 12-month warranty for total peace of mind.

Vehicle Fitment & OE Reference

Please verify your 2 Pins connector and OE numbers to ensure a perfect fit for your Ford ignition coil upgrade:

Coil OE Numbers: HL3Z12029C, HL3E12029BA, UF-834, UF-865, HL3Z12029B.
Spark Plug OE Number: 6509.

Brand	Model	Years	Engine
Ford	F-250 Super Duty	2018–2020	V8 6.2L
Ford	F-350 Super Duty	2018–2020	V8 6.2L
Ford	E-450 Super Duty	2019	V8 6.2L

Why BDFHYK is the Superior Choice for Your Ford F250 Ignition Coil Replacement

Truck owners on forums like Ford-Trucks.com often worry about coil longevity and 'misfires under load.' Our coil pack ford solution solves these issues with advanced engineering:

High-Performance Internal Build: Each BDFHYK Ford ignition coil features oxygen-free highly conductive coil windings and a high-permeability magnetic core to maximize energy transfer.
Thermal & Vibration Resilience: Built with Germany-imported varnished copper wire and Japan-imported high-temperature rubber, these Ford 6.2 coil packs resist the extreme heat and vibration of heavy-duty work.
360-degree Laser-Welded Iridium Spark Plugs: Our iridium spark plugs use precision laser welding to secure the electrode, effectively helping to resolve jitter and improve fuel efficiency.
Ignition Power Boost: The BDFHYK Ignition system provides a 20% power boost in ignition efficiency, ensuring your Ford ignition coil never drops a spark, even in the most demanding conditions.

Diagnostic Solutions: Solving the 6.2L V8 Misfire

If you are experiencing a 'Check Engine' light with codes P0300 through P0308, your Ford F250 ignition coil system is likely failing. This kit is the ultimate solution for:

Eliminating Acceleration Hesitation: The Strengthen Motive Force technology ensures that when you step on the gas, your 6.2L V8 engines respond instantly without 'stuttering'.
Improving Fuel Economy: By achieving fuller combustion, these iridium spark plugs help Reduce Fuel Consumption, saving you money at the pump during long-haul trips.
Resolving Engine Jitter: High ignition stability makes the engine run more smoothly at idle, removing the annoying vibrations common in older Ford coil pack setups.

Application Scenarios & Ideal Users

The Heavy Hauler: If you use your F-350 for towing trailers or heavy equipment, this Ford coil pack and spark plug combo restores the torque needed for confident hauling.
The Fleet Maintenance Pro: Perfect for restoring 2019 E-450 Super Duty vehicles that require consistent starting and 'basically no carbon deposits' for long-term reliability.
The DIY Mechanic: Designed as a direct OE replacement, our BDFHYK Ford ignition coil features a 2-pin plug-and-play design for a fast, hassle-free installation that saves you dealership labor costs.

Pro-Tip for DIY Installation

To ensure the longest life for your new Ford ignition coil kit, we recommend checking your spark plug gaps (OE spec for the 6.2L is typically 1.0mm-1.1mm) before installation. Always disconnect the negative battery terminal to safely reset the ECU misfire counters.

Upgrade to BDFHYK today—where 'Original Car Standard' meets 'High Performance' durability.

Technical Specifications

Brand	BDFHYK
Vehicle Compatibility	Ford F-250 / F-350 / E-450 Super Duty (2018–2020)
Engine Compatibility	6.2L V8 Engines ONLY
Ignition Coil OE Reference	HL3Z12029C, HL3E12029BA, UF-834, UF834, UF-865, UF865, HL3Z12029B
Spark Plug OE Number	6509 (Premium Iridium Electrode)
Connector Type	2 Pins (Direct Plug-and-Play Design)
Internal Windings	Oxygen-Free Highly Conductive Copper (Germany-Imported)
Core Construction	High-Permeability Magnetic Core & Dual-Winding System
Insulation Protection	Flexible High-temp Silicone & Japan-Imported Rubber
Manufacturing Process	360-degree Laser Welding Technology (Secures Electrode)
Efficiency Rating	+20% Ignition Power Boost (Ensures stable combustion)
Primary Functions	Resolve Engine Jitter, Eliminate Misfires, Restore Towing Power
Durability Features	Shock Resistance, Thermal Stability, Vibration Resilience
Installation Method	Direct OE Replacement (DIY Friendly)
Package Includes	Full Kit for V8 Engines (8x Coils + 16x Spark Plugs recommended for 6.2L)
Warranty	12-Month Limited Warranty
Shipping	Fast 2–7 Day U.S. Delivery from Local Warehouses

Q: What are the symptoms of a failing Ford 6.2L ignition coil?

A: The most common signs include a noticeable 'stutter' or hesitation when accelerating under load, a rough idle, and decreased fuel economy. You may also see a flashing Check Engine Light with diagnostic trouble codes (DTCs) ranging from P0300 to P0308, indicating specific cylinder misfires.

Q: What year is considered the 'bad year' for the Ford F-250?

A: While the 6.2L V8 is widely considered one of Ford's most reliable engines, early models (around 2011–2012) occasionally faced valve spring issues. For newer 2018–2020 models, the most frequent 'annoyance' reported in forums is simply the wear and tear of the ignition system due to high-heat operating conditions.

Q: How long do BDFHYK Ford coil packs last?

A: Typically, high-quality Ford 6.2 coil packs last between 60,000 to 100,000 miles. However, if you frequently use your F-250 for heavy towing or work in extreme heat, we recommend inspecting your coils and iridium spark plugs every 50,000 miles to prevent 'misfires under load.'

Q: How much oil does a 6.2-liter Ford engine hold?

A: The Ford 6.2L V8 engine typically requires 7 quarts of oil (including filter). Owners often debate oil weights in forums, but Ford officially recommends 5W-20 synthetic blend for most operating environments to ensure proper lubrication of the top-end components.

Q: Why does my Ford F-250 shudder when towing uphill?

A: This 'shudder' is often a classic Ford F250 ignition coil failure. Under heavy load (high cylinder pressure), a weak coil can no longer jump the spark plug gap, causing a misfire. Upgrading to the BDFHYK ignition coil with a 20% power boost helps eliminate this specific towing vibration.

Q: Do I need to replace all 16 spark plugs on my Ford 6.2L?

A: Yes. The 6.2L V8 is a 'dual-plug' design, meaning it has 2 spark plugs per cylinder (16 total). To ensure the strengthen motive force and smooth idle advertised, it is critical to replace all 16 plugs—including the hard-to-reach ones—when you install your new coil pack ford set.

Q: Are BDFHYK ignition coils a direct 'Plug-and-Play' fit?

A: Absolutely. Our BDFHYK Ford ignition coil is designed with the exact 2-pin connector and mounting bracket offset as the original OE parts (HL3Z12029C / UF834). No modifications or wire splicing are required for installation.

Q: What makes iridium spark plugs better for the Ford Super Duty?

A: The 6.2L V8 runs hot and works hard. Iridium spark plugs have a much higher melting point than platinum or copper. This allows for a finer electrode tip, which requires less voltage to spark, resulting in a faster ignition and better resistance to 'carbon deposits' during prolonged idling.

Q: Can a bad ignition coil cause a 'Permanent' P0300 code?

A: Yes. If the coil's internal oxygen-free copper windings are degraded, it may produce a spark that is too weak for the ECU to detect as a 'clean' combustion, triggering a persistent P0300 (Random Misfire) code. Replacing the full set of Ford 6.2 coil packs is the most reliable way to clear these codes.

Q: How hard is it to replace the coils and plugs myself (DIY)?
A: On a scale of 1 to 10, it’s about a 4. The most challenging part is accessing the plugs near the firewall. With a 5/8-inch spark plug socket and a few extensions, a DIYer can save hundreds in labor costs. Our BDFHYK kit is the preferred choice for owners looking for 'Original Car Standard' quality without the dealership markup.

Returns & Refunds

We accept returns within 30 days of delivery for eligible items. If the product is unused and in original condition, you may request a return according to our refund policy. Full policy details: View Refund Policy . We recommend contacting our support team before initiating a return to ensure the fastest resolution.

Customer Support

If you purchased the wrong part, received an incompatible item, or need installation assistance, please contact us directly.

Email: service@bdfhyk.com

Business Hours:

Mon–Fri 9:00–18:00 (GMT+8)

Mon–Fri 19:00–04:00 (UTC−6 / CST)

Manufacturing Standards

Direct Factory Supply, Cost Saving
Integrated R&D, production, and warehousing. Eliminate middleman markups: same quality at lower prices, superior quality at same prices.

Precision Inspection, Commitment to Excellence
Rigorous inspection process, international certification standards. Each product includes individual inspection.