BDFHYK DG511 ignition coil and SP515 SP546 spark plug kit for Ford V8 applications

DG511 ignition coil pack with SP515 and SP546 spark plugs for Ford F-150 V8 applications

Ford F-250 Super Duty DG511 ignition coil and SP515 SP546 spark plug service kit

Ford Mustang and Expedition DG511 ignition coil pack for V8 applications

Lincoln Navigator DG511 ignition coil and SP515 SP546 spark plug service components

Mercury Mountaineer DG511 ignition coil pack for V8 applications

BDFHYK OE-style DG511 ignition coil and SP515 SP546 spark plug components

BDFHYK DG511 Ignition Coil and SP515/SP546 Spark Plug Kit, 8-Pack, for Select 2004–2008 Ford 5.4L V8 3-Valve Engines

$72.99

Type Ignition Coil + Spark Plug Set
SKU BDDLZ-BD-05-01875-SZ
OE Number For Coil: DG511, GD511, FD508, 3L3U12A366BB, 3L3Z12029BA
OE Number For Spark plug:SP546, SP515, SP507

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Technical Specifications

Brand	BDFHYK
Product Type	Ignition Coil + Spark Plug Set
Primary Coil Reference	DG511
OE / Interchange References	DG511, GD511, FD508, 3L3U12A366BB, 3L3Z12029BA
Spark Plug References	SP515 / SP546
Engine	V8 for the DG511 applications
Listed Vehicle Fitment	2004–2008 Ford F-150; 2005–2008 Ford F-250 Super Duty; 2005–2008 Ford Mustang; 2005–2008 Ford Expedition; 2005–2008 Lincoln Navigator; 2006–2008 Mercury Mountaineer — DG511 V8 applications
Fitment Checks	Confirm exact year, model, V8 engine application, DG511 reference, connector shape/keying, boot profile, SP515/SP546 spark plug reference, and required service quantity.
Installation Checks	Inspect wiring/connectors and plug wells; compare removed and replacement components; use the vehicle service specification for spark plug gap and tightening torque.
Important Note	BDFHYK OE-style aftermarket service components, not factory-branded parts.

BDFHYK DG511 Ignition Coil and SP515 / SP546 Spark Plug Kit for Ford V8

Rough idle, hard starting, hesitation under load, or a cylinder-specific misfire may involve worn ignition components, but wiring, connectors, fuel delivery, intake leaks, sensors, compression, timing, and other mechanical conditions can produce similar symptoms. This BDFHYK ignition coil and spark plug kit uses the DG511 ignition coil reference with SP515 / SP546 spark plug references for Ford, Lincoln, and Mercury V8 applications. Confirm the exact engine, coil reference, connector shape, spark plug reference, and required service quantity before ordering.

Ford, Lincoln and Mercury V8 Fitment

Vehicle Fitment

Year	Make	Model	Engine	Notes
2005-2008	Ford	Expedition	5.4L V8	3-Valve Only; Verify OE
2004-2008	Ford	F-150	5.4L V8	3-Valve Only; Verify OE
2005-2008	Ford	F-250 / F-350 Super Duty	5.4L V8	3-Valve Only; Verify OE
2006-2008	Lincoln	Mark LT	5.4L V8	3-Valve Only; Verify OE
2005-2008	Lincoln	Navigator	5.4L V8	3-Valve Only; Verify OE

Package Includes: 8x Ignition Coils & 8x Spark Plugs.
Fitment: Compatible 5.4L V8 3-Valve Engines Only.
Important: SP515 and SP546 are not interchangeable for every application. Please verify your vehicle's year, engine configuration, original ignition coil connector, and OE part numbers before purchasing.

DG511 Ignition Coil Reference

ignition coil references include DG511, GD511, FD508, 3L3U12A366BB, and 3L3Z12029BA. Compare the removed coil body, connector shape, keying, boot profile, and service reference before ordering.

SP515 / SP546 Spark Plug References

References include SP515 and SP546 as primary spark plug references. Confirm the exact spark plug reference required for the vehicle and engine before installation.

How to Confirm DG511 Coil Pack Fitment

Confirm year, make, model, and V8 engine application.
Compare the removed coil body, connector shape, keying, and boot profile.
Confirm the original OE/interchange reference on the removed component.
Confirm the service quantity required for the exact engine.
Verify the SP515 / SP546 spark plug reference for the exact application.

Ignition Diagnostic Checks Before Replacement

A misfire code alone does not prove that an ignition coil has failed. Inspect wiring, connectors, spark plug wells, fuel delivery, intake leaks, sensors, compression, timing, and other mechanical conditions as part of the diagnosis.

Installation Checks

Inspect wiring and electrical connectors before installation.
Check spark plug wells for oil or moisture.
Compare the old and new coil body, connector, and boot profile.
Use the exact vehicle service specification for spark plug gap and tightening torque.
Verify connector seating after installation.

These are BDFHYK OE-style aftermarket service components, not factory-branded parts.

Difficulty Moderate

Estimated Time 0.5–1 hour

Tools Required

Screwdrivers
Service manual specific to your vehicle
Socket set and ratchet
Wrenches

Pre-Installation Checklist

Stop the engine before disassembling or replacing the ignition coil.
Check the spark plugs and spark plug wires as part of diagnosis.
Keep the installation area clean and dry.
Make sure the ignition coil connections are correct.
Refer to the service manual for your specific vehicle because removal order and connector or fastener details can vary by make and model.
Disconnect the negative battery cable before working on the ignition system.

Installation Steps

Disconnect the battery. Remove the negative battery cable by loosening the clamp bolt with a socket or wrench.
Locate the ignition coils on top of the engine. They may be attached to the engine block or surrounding components.
Disconnect and remove the old ignition coil. Remove the mounting bolts or screws and disconnect the electrical connector(s). The order can vary by vehicle, so follow the vehicle-specific service manual. Remove the old coil once fully disconnected.
If one coil serves multiple spark plugs and has multiple electrical connections, mark or label the connectors so they can be reattached to the correct terminals.
Install the new ignition coil in the reverse order of removal. Secure the mounting bolts or screws and reconnect the electrical connector(s) in the correct positions.
Reconnect the negative battery terminal. Hand-tighten the connection, then tighten the terminal bolt with a socket or wrench. Do not over-tighten.
Close the hood, start the engine with the vehicle in Park, and confirm it starts and idles normally. If it does, test-drive the vehicle.

Post-Installation Verification

Confirm the new ignition coil is securely mounted.
Confirm all electrical connectors are connected to the correct terminals.
Confirm the negative battery terminal is reconnected and tightened sufficiently without over-tightening.
Start the engine in Park and confirm it starts and idles normally.
If idle is normal, test-drive the vehicle and check for remaining misfire or drivability symptoms.

Troubleshooting

Spark plug and wire checks from the manual:
With the engine running, disconnect spark plug wires one at a time and observe engine-speed or roughness changes; the manual states that no significant change can indicate a bad spark plug.
The manual describes checking for spark by holding the end of a disconnected spark plug wire near a metal surface and looking or listening for a spark or cracking sound.
While the engine is cranked, check for spark at each spark plug wire; the manual states that no spark can indicate a dead wire.
Make sure battery, ignition, coil, and spark-plug wire connections are secure. Wiggle connections and retest if a loose connection is suspected.
Keep spark plug ends clean and free of dirt, oil, or grease; clean and retest before replacing a plug.
Inspect wires for cracked, cut, scraped, or burned insulation. Check boots and terminals for damage, corrosion, or poor contact.
Check for corrosion between the boot, spark plug, and ignition coil, and inspect the spark plug for discoloration or damage.
Inspect spring clips and wire retention at the distributor and spark plug ends to make sure connections are held securely.
Ignition coil failure can cause one or more cylinders to misfire, stuttering, sluggishness, and other drivability issues.

BDFHYK Ignition Coil Installation Guide

Q: Will this DG511 ignition coil and spark plug kit fit my Ford, Lincoln, or Mercury?

A: Fitment covers the listed DG511 V8 applications for Ford F-150, F-250 Super Duty, Mustang, Expedition, Lincoln Navigator, and Mercury Mountaineer.

Q: Which ignition coil references should I compare?

A: Compare DG511, GD511, FD508, 3L3U12A366BB, or 3L3Z12029BA with the removed ignition coil and service information.

Q: Which spark plug references are used?

A: Spark plug references are SP515 and SP546.

Q: Does this fitment include L4 or V6 applications?

A: No. The current vehicle fitment is limited to DG511 V8 applications.

Q: Does this fitment include a 6.8L V10 application?

A: The current vehicle fitment is V8-only. Confirm the exact engine before ordering.

Q: Does a misfire code prove the ignition coil is bad?

A: No. Wiring, connectors, fuel delivery, intake leaks, sensors, compression, timing, and other mechanical conditions can cause similar symptoms.

Q: Should all coils and spark plugs be replaced together?

A: Replacement should follow diagnostic results, component condition, service history, and the exact engine's service requirements. Confirm required service quantity first.

Q: What should I compare before ordering?

A: Compare year, model, V8 engine application, DG511 reference, connector shape/keying, boot profile, and the SP515/SP546 spark plug reference.

Q: What spark plug gap should I use?

A: Use the exact vehicle service specification for the specific engine and spark plug application.

Q: What tightening torque should I use?

A: Use the exact vehicle service specification for the specific engine and spark plug application.

Q: What should I inspect during installation?

A: Inspect wiring and connectors, check spark plug wells for oil or moisture, and verify connector seating after installation.

Q: Are these Genuine OEM parts?

A: No. These are BDFHYK OE-style aftermarket service components, not factory-branded parts.

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.

Before vs After Replacement

Replacing worn ignition coils and spark plugs helps restore stable ignition and smoother engine performance.

BEFORE

Rough Idle & Engine Vibration Noticeable engine shaking while idling. Irregular exhaust flow may indicate unstable ignition performance.

AFTER

Fast Start & Stable Idle IMore consistent spark delivery reduces misfires and stabilizes idle speed.

BEFORE

Sluggish Acceleration Weak throttle response at lower RPM. Vehicle may feel underpowered.

AFTER

Enhanced Power Response Improved throttle response and smoother acceleration

BEFORE

Increased Fuel Consumption Poor combustion can lead to higher fuel usage.

AFTER

Improved Fuel Efficiency Optimized ignition supports more efficient combustion.

Performance improvements may vary depending on vehicle condition.

5 stars: 73 (91%)
4 stars: 4 (5%)
3 stars: 1 (1%)
2 stars: 0 (0%)
1 star: 2 (3%)

Some of the reviews shown are from related products the merchant grouped with this one.

Exceptionally good quality . Worth every penny

Putting em in right now and they feel and look great. Def good quality. I'll have to come back on performance and longevity definitely seem like a value for your money . I'm excited . Built exceptionally well.

Llenaron mis expectativas

Cumplen con su funcion, sirven a la perfeccion , para Vitara live

Awesome Coil Packs!

Replaced old worn coils on my 2004 Mustang GT. Running very well!

Awesome Coil Packs!

Replaced old worn coils on my 2004 Mustang GT. Running very well!

Impressed

Didn't have high hopes for Amazon coils at this price but are worth every penny.....they all worked perfect and we're an exact match to the OEM ones....not a single bad one in the batch which is something I kinda expected

Awesome Coil Packs!

Replaced old worn coils on my 2004 Mustang GT. Running very well!

Awesome Coil Packs!

Replaced old worn coils on my 2004 Mustang GT. Running very well!

Impressed

Runs great much better 04 ford f150 4.6 v8

Can't believe they're this cheap in price but good and quality so far so good

Ignition coil pack change out

So far so good.

Great Deal

So far so good. 2 months since install. Took care of plug misfires and restored engine power

As described, arriving on time, good packaging.

Products in new & good condition as said on the ads.

Great Value!

These work perfect. And they have a warranty! At the auto part store, it would've been almost $400 to buy these. I was a little hesitant when I saw the low price, but I installed them, and so far, so good.

Work great

I've been running these for over 6 months now and they work great. Love the color. Prob put 20,000 miles on them and no problems.

Great Deal

So far so good. 2 months since install. Took care of plug misfires and restored engine power

So far so good.

They were what I ordered and they arrived on schedule. Only time will speak to the quality and durability.

Works great

I have had these in for over a month and working great

Fixed the misfire! 2011 Ford Taurus.

Bought this package for my 2011 Ford Taurus that had a bad engine misfire. Had to gap the spark plugs but these were good quality and immediately fixed the issue the car was having.

Saving cash

Fixed the kids car for less than the parts store price of 1 coil

2007 Lincoln MKX

Good price
Good product
So far mi car is driving smooth

Easy to install

Good value for what I needed. easy install

They do the work!

Perfect fit for my 2000 Ford F150 5.4 Triton

GREAT !

So far, so Good !.. Parts stores wanted $400 for the same set.. Took about an hour to install.. So far, running good !

Makes the vehicle operational better

N/A

Smooth

Smooth

Est��n muy bien

Se ajustan perfectamente

Exactamente lo ofrecido

Es lo que es por el precio , hasta el momento funcionan bien

Right fit

So far so good, expedition running smoothly ????. I recommend this set 5.4l

Great Deal

So far so good. 2 months since install. Took care of plug misfires and restored engine power