BDFHYK UF541 ignition coil and SP432 spark plug set for Mazda 5

BDFHYK UF541 OE-style replacement coil for Mazda 5 2.3L

BDFHYK SP432 iridium spark plugs with UF541 ignition coil set

BDFHYK 2006 2007 Mazda 5 ignition coil and plug kit

BDFHYK Mazda 5 L4 ignition service kit with UF541 coils

BDFHYK UF541 coil connector and body detail for Mazda 5

BDFHYK OE-style Mazda 5 ignition coil and spark plug set

BDFHYK 4 Ignition Coil UF541 and 4 Iridium Spark Plug SP432 for Mazda 5 2.3L L4 2006-2007

$74.99

Type Ignition Coil + Spark Plug Set
SKU BDDLZ-BD-05-11344-CK
OE Number For Coil: LFB618100A, LFB618100B, LFB618100B9U, LFB618100C9U, UF-541, UF541, 5C1741, C779, 5C1741, COP271, GN10400, 48736, 1788395
OE Number For Spark plug:SP432

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Technical Specifications

Brand & Model	BDFHYK UF541 Ignition Coil & SP432 Iridium Spark Plug Set
Package Includes	4x BDFHYK ignition coils (UF541) + 4x iridium spark plugs (SP432)
Replacement Type	OE-style aftermarket ignition coil and spark plug service kit
Ignition Coil OE	LFB618100A, LFB618100B, LFB618100B9U, LFB618100C9U, UF-541, UF541, 5C1741, C779, COP271, GN10400, 48736, 1788395
Spark Plug OE	SP432
Mazda 5 Fitment	Mazda 5 2006-2007 2.3L L4 listed applications
Fitment Checks	Confirm exact year, 2.3L L4 engine, UF541-style coil, SP432 plug reference, connector shape, coil body, plug reach, seat type, and gap requirement
Common Symptoms	Rough idle, hard start, hesitation, misfire symptoms, poor acceleration, poor fuel economy, check engine light
Diagnostic Notes	Symptoms may also come from wiring, fuel delivery, intake leaks, sensor faults, or compression problems
Installation Notes	Install on a cool engine, inspect old plugs for fouling, confirm plug gap, and follow Mazda service torque guidance
Critical Note	Do not order by Mazda 5 name alone. Year, 2.3L L4 engine, OE reference, connector, spark plug reference, and quantity must match
Important Note	This is not a factory-branded Mazda part

UF541 Ignition Coil and SP432 Spark Plug Set for Mazda 5 2.3L L4

This BDFHYK UF541 ignition coil and SP432 iridium spark plug set is designed for listed 2006-2007 Mazda 5 2.3L L4 applications. It is intended for ignition service when the original coils or spark plugs have been diagnosed as worn, weak, damaged, or related to misfire symptoms. Before ordering, confirm the exact year, 2.3L L4 engine, UF541-style coil reference, SP432 spark plug reference, connector shape, and 4-coil / 4-plug service quantity.

Vehicle Fitment for This UF541 Mazda 5 Ignition Kit

Make	Model	Listed Years	Engine	Fitment Check
Mazda	5	2006-2007	2.3L L4	Confirm UF541-style coil, SP432 spark plug reference, connector, and original ignition layout.

Fitment note: This listing is for the listed 2006-2007 Mazda 5 2.3L L4 application. Do not order by Mazda 5 name alone; year, engine, OE reference, connector style, and plug reference must match.

When This Mazda 5 Coil and Plug Set May Be Needed

Ignition coils and spark plugs may need inspection when the engine has rough idle, hard start, hesitation, misfire symptoms, poor acceleration, poor fuel economy, or a check engine light. These symptoms can also come from wiring, fuel delivery, intake leaks, sensor faults, or compression problems. For installation planning, review Mazda 5 2006 2007 coil plug replacement steps.

UF541 and SP432 Reference Checks

Compare LFB618100A, LFB618100B, LFB618100B9U, LFB618100C9U, UF-541, UF541, 5C1741, C779, COP271, GN10400, 48736, and 1788395 with the original coil.
Compare SP432 with the spark plug specified for the vehicle.
Confirm that 4 ignition coils and 4 spark plugs match the listed L4 service quantity.
Check connector orientation, coil body, mounting depth, plug reach, seat type, heat range reference, and gap requirement.

Installation and Service Notes

Install on a cool engine, inspect old plugs for fouling, check connector locks, and follow Mazda service information for plug torque and gap. If symptoms remain after installation, continue diagnosis by checking wiring, fuel pressure, injector operation, intake leaks, and compression. This BDFHYK set is an OE-style aftermarket replacement, not a factory-branded Mazda part.

Q: Will this UF541 ignition coil and spark plug set fit my Mazda 5?
A: It is listed for 2006-2007 Mazda 5 2.3L L4 applications. Confirm year, engine, OE reference, connector, and SP432 plug reference before ordering.

Q: What is included in the package?
A: The package includes 4 ignition coils and 4 iridium spark plugs.

Q: Which OE or interchange references should I compare?
A: Compare LFB618100A, LFB618100B, LFB618100B9U, LFB618100C9U, UF-541, UF541, 5C1741, C779, COP271, GN10400, 48736, 1788395, and SP432 with your original parts.

Q: What symptoms may point to worn ignition coils or spark plugs?
A: Common symptoms may include rough idle, hard start, hesitation, misfire symptoms, poor acceleration, poor fuel economy, and a check engine light.

Q: Can this kit solve an engine misfire?
A: It may help only when the ignition coils or spark plugs are confirmed as the failed parts. Misfires can also be caused by wiring, fuel, air, sensor, or compression issues.

Q: Is this the same as UF604 Mazda 5 fitment?
A: No. This page is for the listed UF541-style 2006-2007 Mazda 5 2.3L L4 application. Confirm OE references before ordering.

Q: Do I need to check spark plug gap and torque?
A: Yes. Follow Mazda service information for spark plug gap and torque, and avoid cross-threading the cylinder head.

Q: Should I compare the connector and mounting style?
A: Yes. Connector shape, coil body, boot length, and mounting points should match the removed parts before installation.

Q: What else can cause similar symptoms?
A: Wiring, fuel delivery, intake leaks, sensor faults, or compression problems can create similar symptoms. Continue diagnosis if symptoms remain.

Q: Is this a factory-branded part?
A: No. This is a BDFHYK OE-style aftermarket replacement, not a factory-branded Mazda part.

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

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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.