What Vehicles Fit UF764 Ignition Coils?

Based on the supplied manufacturer fitment:

Important Fitment Note

Do not catalog this simply as “2015–2022 Hyundai/Kia.”

The 2.4L engine requirement is critical.

Many of these vehicles were offered with multiple engines, including turbocharged and naturally aspirated configurations. Verify UF764 / 27300-2GGA0 against the original coil before purchase.

Hyundai Sonata 2.4L

The kit fits listed:

2015–2019 Hyundai Sonata 2.4L

A weak coil can cause symptoms including:

• Rough idle
• Hesitation
• Engine shaking
• Misfires
• Poor acceleration
• Check Engine light
• Reduced fuel economy
• Hard starting

Because this package also includes spark plugs, it can provide a convenient complete ignition refresh when both components are due for replacement.

Hyundai Santa Fe

There are two distinct applications worth keeping separate in your catalog:

2017–2018 Hyundai Santa Fe Sport 2.4L
2019–2020 Hyundai Santa Fe 2.4L

I would preserve the Santa Fe Sport designation rather than merging everything under Santa Fe. Hyundai already made the naming confusing enough; the parts catalog doesn’t need to join the conspiracy.

Hyundai Tucson

Listed fitment:

2018–2021 Hyundai Tucson 2.4L

Again, this does not mean every Tucson from 2018–2021.

Engine selection is mandatory.

Kia Sportage

Listed fitment:

2017–2022 Kia Sportage 2.4L

This is one of the widest application ranges supplied for the kit.

Because other Sportage engines were available, verify the 2.4L engine and OE coil number before ordering.

Kia Optima

Listed fitment:

2016–2020 Kia Optima 2.4L

Do not automatically assign the kit to turbocharged Optima applications based solely on model year.

Kia Sorento

Listed fitment:

2016–2020 Kia Sorento 2.4L

The Sorento was available with multiple powertrains during these years, making the engine filter particularly important.

Why Replace Ignition Coils and Spark Plugs Together?

Ignition coils and spark plugs work together.

The coil transforms relatively low battery voltage into the high voltage required to create a spark across the spark-plug electrodes.

As plugs wear, their effective gap can increase.

A larger or deteriorated gap can require greater voltage to fire reliably, increasing demand on the ignition coil.

Replacing aging plugs at the same time as aging coils can therefore provide a more complete ignition-system service.

For more information about plug construction, heat range and proper selection, read Pro Street’s How to Pick Spark Plugs for Your Build.

Symptoms of a Bad UF764 Ignition Coil

A failing coil can cause:

• Rough idle
• Engine shaking
• P0300 misfire code
• Cylinder-specific misfires
• Hesitation
• Loss of power
• Poor acceleration
• Difficult starting
• Reduced fuel economy
• Check Engine light
• Flashing Check Engine light

Pro Street’s 7 Bad Ignition Coil Symptoms You Should Never Ignore explains how ignition-coil failures commonly present themselves.

Don’t Assume Every Misfire Needs Coils

A misfire code identifies a combustion problem. It doesn’t necessarily identify the failed component.

For example:

P0300 – Random/Multiple Cylinder Misfire
P0301 – Cylinder 1 Misfire
P0302 – Cylinder 2 Misfire
P0303 – Cylinder 3 Misfire
P0304 – Cylinder 4 Misfire

Potential causes include:

• Ignition coil
• Spark plug
• Fuel injector
• Wiring fault
• Intake leak
• Fuel-pressure problem
• Compression loss
• Mechanical engine problem

Pro Street’s P0300 Random/Multiple Cylinder Misfire Causes & Fixes provides a diagnostic path before replacing parts.

Perform a Coil-Swap Test

Suppose the vehicle stores:

P0302 – Cylinder 2 Misfire

A simple test on many coil-on-plug engines is to move the cylinder-two coil to another cylinder.

If the misfire follows the coil, you’ve developed strong evidence that the coil itself is defective.

If P0302 remains on cylinder two, continue testing the spark plug, injector, wiring and mechanical condition.

The ECU told you where the problem happened.

It didn’t necessarily send you a shopping list.

Inspect the Old Spark Plugs

Because this kit includes plugs, compare the removed components carefully.

Look for:

• Excessive electrode wear
• Enlarged gap
• Oil contamination
• Carbon deposits
• Fuel fouling
• Cracked ceramic
• Evidence of overheating
• Uneven appearance between cylinders

Spark plugs can provide useful clues about what’s happening inside each cylinder.

One plug that looks dramatically different from the other three deserves investigation.

Check the Spark-Plug Wells

Before installing the new coils, inspect the plug wells for:

• Engine oil
• Water
• Dirt
• Corrosion
• Carbon tracking
• Damaged electrical connectors

Don’t install a brand-new ignition coil into a plug well full of oil without correcting the underlying leak.

That’s less “repair” and more “scheduled sequel.”

Should You Replace All Four Coils?

A complete four-coil set can make sense when:

• Multiple coils have failed
• All four coils are original and high mileage
• Coil boots show similar deterioration
• You’re already replacing all four plugs
• You’re performing a complete ignition refresh

If one relatively new coil has conclusively failed and the remaining three are healthy, replacing all four isn’t automatically required.

Diagnosis should determine the repair.

Can New Coils Improve Performance?

New ignition coils can restore lost performance when the existing coils are weak or defective.

A properly functioning ignition system can restore:

• Smooth idle
• Clean acceleration
• Reliable starting
• Consistent combustion
• Normal fuel economy

But replacing four perfectly functioning coils isn’t a horsepower modification.

If it were, we’d all be dyno tuning with Amazon boxes.

Is the UF764 Coil and Spark Plug Kit Worth It?

For a compatible Hyundai or Kia 2.4L four-cylinder engine, this UF764 coil-and-plug package offers a convenient way to service the complete ignition system.

Its strongest applications include:

Hyundai Sonata, Santa Fe, Santa Fe Sport and Tucson
Kia Sportage, Optima and Sorento

Four coils plus matching plugs means the major ignition service components can be addressed simultaneously.

The critical step is verifying UF764 / 27300-2GGA0 and the 2.4L engine before ordering.

Shop replacement ignition and maintenance components through Pro Street Online.