What Vehicles Fit UF247 Ignition Coils?

Based on the supplied fitment information:

Toyota Corolla UF247 Ignition Coil Fitment

The largest application for this package is the 2000–2008 Toyota Corolla 1.8L.

Listed trims include:

2000–2008 Corolla CE 1.8L
2000–2008 Corolla LE 1.8L
2001–2008 Corolla S 1.8L

These applications use four coil-on-plug ignition coils, making this four-coil/four-plug package suitable for a complete ignition service when the supplied OE numbers match.

Toyota Celica GT

The kit is listed for:

2000–2005 Toyota Celica GT 1.8L

The GT designation matters.

Do not automatically catalog this kit against every Celica from 2000–2005 based only on the model name. Higher-performance Celica configurations used different engine hardware.

For ProStreetOnline, I’d specifically list:

Celica GT 1.8L

rather than simply “Toyota Celica.”

One extra database field beats one extra return.

Toyota MR2 Spyder

Listed fitment includes:

2000–2005 Toyota MR2 Spyder 1.8L

The lightweight MR2 Spyder makes this product a little more interesting than the average commuter-car tune-up kit.

The same fundamental rule applies: healthy plugs and coils are essential for clean combustion and consistent throttle response.

Toyota Matrix

Listed applications include:

2003–2008 Toyota Matrix Base 1.8L
2003–2008 Toyota Matrix XR 1.8L

Again, trim matters.

I would not automatically assign this product to Matrix XRS applications without separate verification.

Pontiac Vibe

The Toyota connection continues with:

2003–2008 Pontiac Vibe Base 1.8L

The Vibe shared substantial engineering with the Toyota Matrix, so Toyota-derived engine and ignition components appear throughout compatible applications.

Do not automatically extend this fitment to every Vibe trim or engine.

Chevrolet Prizm

The earliest applications supplied are:

1999–2002 Chevrolet Prizm Base 1.8L
1999–2002 Chevrolet Prizm LSi 1.8L

The Prizm was closely related to the Corolla, making this another logical UF247 application.

Why Replace Coils and Spark Plugs Together?

Ignition coils and spark plugs work as a system.

The coil produces the high voltage necessary to create a spark.

The spark plug provides the controlled gap across which that spark occurs.

As spark plugs wear, the electrode gap can increase and the ignition system may require greater voltage to reliably fire the mixture.

That places additional demand on aging ignition coils.

When both components have substantial mileage, replacing coils and plugs together can provide a more complete ignition-system refresh.

For more information, read Pro Street’s How to Pick Spark Plugs for Your Build guide on My Pro Street.

Why Double Iridium Spark Plugs?

The included plugs are advertised as using iridium on both the center and ground electrodes.

Iridium’s durability allows manufacturers to use fine electrodes while maintaining resistance to wear.

Potential advantages in the correct application include:

• Long service life
• Consistent spark gap
• Good cold-start performance
• Reduced electrode erosion
• Reliable everyday ignition

But the material alone doesn’t determine compatibility.

The plug’s thread, reach, seat, heat range and gap still need to match the engine.

A $20 iridium plug with the wrong specifications remains a very expensive wrong spark plug.

Symptoms of Failing Ignition Coils

A deteriorating ignition coil may produce:

• Rough idle
• Engine shaking
• Hesitation
• Misfire
• Loss of power
• Poor acceleration
• Hard starting
• Check Engine light
• Flashing Check Engine light
• Poor fuel economy

Pro Street’s 7 Bad Ignition Coil Symptoms You Should Never Ignore guide provides a deeper explanation of these symptoms and how to determine whether the ignition coil is actually responsible.

P0300 and Toyota Misfires

A failing ignition component can contribute to:

P0300 – Random/Multiple Cylinder Misfire Detected

You may also encounter cylinder-specific codes:

P0301 – Cylinder 1 Misfire
P0302 – Cylinder 2 Misfire
P0303 – Cylinder 3 Misfire
P0304 – Cylinder 4 Misfire

These codes identify where a misfire is occurring.

They don’t automatically tell you which part failed.

Possible causes include:

• Ignition coil
• Spark plug
• Fuel injector
• Intake leak
• Wiring problem
• Fuel-delivery issue
• Low compression
• Mechanical engine problem

Pro Street’s P0300 Random/Multiple Cylinder Misfire Causes & Fixes guide provides a useful diagnostic starting point.

Perform a Coil-Swap Test

Suppose your Corolla stores:

P0302 – Cylinder 2 Misfire

Before replacing everything, you can move the cylinder-two coil to another cylinder.

Clear the code only after recording the diagnostic information, run the engine and determine whether the misfire follows the coil.

If it moves from P0302 to the cylinder receiving the suspect coil, you’ve developed strong evidence of a defective ignition coil.

If the misfire stays on cylinder two, continue diagnosing.

That $8,000 scan tool and the ancient art of moving one coil are occasionally fighting for the same job.

Inspect for Oil in the Spark-Plug Wells

Whenever coils are removed, inspect the spark-plug wells.

Look for:

• Oil
• Moisture
• Corrosion
• Dirt
• Carbon tracking
• Damaged coil boots

Oil contamination can indicate a valve-cover or spark-plug-tube sealing problem.

Correct significant leaks before installing new ignition components.

Don’t Ignore the Air/Fuel Side

A Toyota that runs poorly isn’t automatically suffering from an ignition problem.

Fuel-delivery and airflow problems can create similar symptoms.

That’s why Pro Street’s broader diagnostic content should support this commercial page rather than having the product page attempt to rank for every possible Corolla misfire symptom.

The goal is:

Diagnose the problem → confirm ignition failure → buy the correct replacement parts.

Not:

Check Engine light → throw entire catalog at car.

Should You Replace All Four Coils?

This Marsram kit contains four coils and four plugs, making it particularly convenient for a complete ignition refresh.

Replacing all four coils may make sense when:

• Mileage is high
• All four coils are original
• Multiple coils have failed
• Coil housings or boots show deterioration
• You’re already replacing all four spark plugs
• You want a matched replacement set

If one relatively new coil has conclusively failed and the other three are healthy, replacing every coil isn’t automatically necessary.

Is the Marsram UF247 Coil and Plug Kit Worth It?

For compatible Toyota 1.8L applications, the Marsram UF247 Ignition Coil and Double Iridium Spark Plug Kit provides a convenient all-in-one ignition service package.

Its strongest applications include the:

• 2000–2008 Toyota Corolla
• 2000–2005 Toyota Celica GT
• 2000–2005 Toyota MR2 Spyder
• 2003–2008 Toyota Matrix Base/XR
• 2003–2008 Pontiac Vibe Base
• 1999–2002 Chevrolet Prizm

Four coils plus four spark plugs means the major service components are together in one package.

Just verify the OE numbers and exact application before ordering.

Because Toyota made these cars reliable.

That doesn’t mean Toyota made every 1.8-liter engine use the same damn parts.