BDFHYK UF-735 DG554 ignition coil and SP539 iridium spark plug set

Ford Escape ignition coil UF-735 DG554 for compatible 2017-2019 1.5L L4 applications

Ford Fusion ignition coil UF-735 DG554 for compatible 2014-2020 1.5L L4 applications

UF-735 ignition coil replacement with SP539 iridium spark plug reference

DG554 ignition coil and SP539 spark plug kit for compatible Ford 1.5L applications

BDFHYK Ford Escape ignition coil and iridium spark plug replacement set

UF-735 DG554 ignition coil replacement set with DS7Z12029A reference

BDFHYK Ignition Coil UF-735 and Iridium Plugs SP539 For 2014-2020 Fusion 1.5L L4 2017-2019 Escape 1.5L L4 DS7Z12029A DG554

$68.99

Product Detail

Type Ignition Coil + Spark Plug Set
SKU BDDLZ-BD-05-07534-CK
OE Number Coil: UF-735, DS7Z12029A, DS7Z12029B, C880, GN10645, DG554, V25700032, DS7G-12A366-BB, DG-552, E1235
OE Number For Spark plug:SP539

🚚 Estimated Delivery: Calculating... · Ships by Calculating... · Free Shipping

Trust & Assurance

Free Shipping · 2–7 Business Days

12-Month Warranty

30-Day Return

Secured Payment

BDFHYK UF-735 / DG554 ignition coil and SP539 iridium spark plug set is listed for compatible 2014–2020 Ford Fusion 1.5L L4 and 2017–2019 Ford Escape 1.5L L4 applications. When selecting a Ford Escape ignition coil, confirm the exact year, 1.5L engine configuration, connector design, removed-part shape, and replacement reference before installation.

Product Details

Brand: BDFHYK
Product Type: Ignition Coil + Spark Plug Set
Ignition Coil References: UF-735 / DG554
Spark Plug Reference: SP539
Application: Compatible Ford Fusion and Ford Escape 1.5L L4 applications listed below

Compatible Applications

Ford Fusion: 2014–2020, 1.5L L4
Ford Escape: 2017–2019, 1.5L L4

Confirm exact vehicle and engine fitment before ordering because production changes and connector details can vary.

OE / Interchange References

Ignition coil comparison references: UF-735, DS7Z12029A, DS7Z12029B, C880, GN10645, DG554, V25700032, DS7G-12A366-BB, DG-552, E1235.

Spark plug reference: SP539.

Diagnosis Before Replacement

Misfire, rough idle, hard starting, hesitation, or an ignition-related fault code can involve an ignition coil or spark plug, but those symptoms do not prove either component is the only cause. Check the affected cylinder, spark plug condition, connectors, wiring, fuel delivery, intake leaks, compression, timing, and other relevant conditions before replacing parts.

Installation Notes

Compare coil body shape, connector keying, mounting points, boot profile, and spark-plug specification with the removed components.
Inspect plug wells for oil, moisture, corrosion, or debris.
Do not force a connector or mounting point that does not match.
Use vehicle-specific service information for spark-plug specification, torque, and installation procedure.

Replacement Planning

Replacement scope should follow diagnosis, component condition, service history, labor access, and the requirements of the exact engine. There is no universal mileage interval that requires every ignition coil to be replaced.

After Installation

If a misfire remains after installation, recheck fitment, connector seating, spark-plug installation, and the affected cylinder first. Continued diagnosis may be required for wiring, injectors, fuel delivery, intake leaks, compression, timing, or other mechanical conditions.

Technical Specifications

Brand	BDFHYK
Product Type	Ignition Coil + Spark Plug Set
Ignition Coil References	UF-735; DG554
Spark Plug Reference	SP539
Spark Plug Type	Iridium
Ford Escape Fitment	2017–2019 1.5L L4
Ford Fusion Fitment	2014–2020 1.5L L4

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 ignition coil set fit a Ford Escape?

A: Current product fitment lists 2017–2019 Ford Escape 1.5L L4 applications. Confirm the exact year, engine, connector design, and reference number before installation.

Q: Will it fit a Ford Fusion?

A: Current product fitment lists 2014–2020 Ford Fusion 1.5L L4 applications. Confirm exact vehicle and engine details before ordering.

Q: Which ignition coil reference numbers can I compare?

A: Current product data lists UF-735, DS7Z12029A, DS7Z12029B, C880, GN10645, DG554, V25700032, DS7G-12A366-BB, DG-552, and E1235.

Q: What spark plug reference is listed?

A: The current spark plug reference is SP539, and the product source identifies an iridium spark plug design.

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

A: No. A misfire or ignition-related code is a starting point for diagnosis. Spark plugs, connectors, wiring, fuel delivery, intake leaks, compression, timing, and other conditions can produce similar symptoms.

Q: Should every ignition coil be replaced together?

A: Replacement scope should follow diagnosis, component condition, service history, labor access, and the exact engine. One failed coil does not automatically mean every coil is faulty.

Q: Should the spark plugs be checked during coil replacement?

A: Yes. Check plug condition, wear, fouling, damage, and the correct specification for the exact engine.

Q: What if oil or moisture is present in a spark-plug well?

A: Correct oil, moisture, corrosion, or debris before evaluating the replacement coil or spark plug. Contamination can affect the boot and connection.

Q: What if the engine still misfires after installation?

A: Recheck fitment, connector seating, spark-plug installation, and the affected cylinder. Further diagnosis may be needed for wiring, injectors, fuel delivery, intake leaks, compression, timing, or other mechanical conditions.

Q: Is there a universal mileage interval for ignition coil replacement?

A: No. Use diagnosis, condition, service history, and vehicle-specific service information.

Q: What should I compare before installation?

A: Compare coil body shape, connector keying, mounting points, boot profile, spark-plug specification, and replacement references with the removed parts.

Q: Which installation torque or plug specification should I use?

A: Use service information for the exact vehicle and engine because installation specifications vary by application.

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.