2003–2007 Honda Accord 2.4L MFKA 5-Speed Automatic Transmission – Low-Mileage JDM Replacement

Looking for a replacement 2003–2007 Honda Accord transmission?

J-Spec Auto offers this low-mileage JDM Honda MFKA 5-speed automatic transmission for compatible Honda Accord 2.4L applications.

This transmission may also be suitable for certain 2004–2008 Acura TSX 2.4L applications. However, Honda used different transmission codes, electronics, calibrations, and application-specific components. Therefore, exact compatibility must be verified before purchase.

This is an original Japanese-market Honda transmission imported from Japan.

Most importantly, the photographs in this listing show the actual transmission available for purchase, not a generic stock photo.

Quick Details

• Product: JDM Honda Automatic Transmission
• Primary Application: 2003–2007 Honda Accord
• Possible Additional Application: 2004–2008 Acura TSX
• Engine Size: 2.4L
• Engine Family: K24-series
• Transmission Code: MFKA
• Serial Number: MFKA-4RFFKAS
• Transmission Type: Automatic
• Speeds: 5-Speed
• Drivetrain: FWD
• Condition: Used JDM / Imported from Japan
• Item ID: 46197
• Actual Product Photos: Yes
• Warranty: 90-Day Parts Warranty
• Nationwide Shipping: Available
• Local Pickup: Henrico / Richmond, Virginia

Vehicle Compatibility

Potential applications include:

Years	Vehicle	Engine	Transmission
2003–2007	Honda Accord	2.4L K24-series	5-Speed Automatic
2004–2008	Acura TSX	2.4L K24-series	5-Speed Automatic

IMPORTANT FITMENT NOTICE

Do not determine transmission compatibility from year, model, and engine size alone.

Honda used different transmission codes and configurations.

Before ordering, verify:

• VIN
• Model year
• Production date
• Original transmission code
• Electrical connectors
• Sensors
• Case configuration
• Mounting points
• Axle locations
• Final-drive/application specifications
• ECU/PCM compatibility
• Applicable Honda/Acura part numbers

If you are unsure, contact J-Spec Auto before ordering.

For better fitment verification, provide:

VIN + original transmission code + clear photos of your original transmission label and connectors.

What Is the MFKA Transmission?

MFKA is a Honda automatic transmission identification code associated with certain K-series applications.

This unit is a:

5-speed electronically controlled automatic transmission

designed for front-wheel-drive applications.

Transmission identification is especially important on Honda and Acura vehicles because similar-looking K-series transmissions are not automatically interchangeable.

Therefore, MFKA, MGTA, MCTA, and other Honda transmission codes should not automatically be treated as identical replacements.

MFKA vs. MGTA – Are They Interchangeable?

Customers commonly search for:

MFKA vs MGTA transmission

because both codes may appear when looking for Accord or TSX replacement transmissions.

However, do not assume that MFKA and MGTA are identical simply because they are both Honda 5-speed automatic transmissions used with 2.4L K-series engines.

Compatibility can depend on:

• Vehicle application
• Model year
• Internal configuration
• Final drive
• Sensors
• Electrical connectors
• PCM calibration
• External components

If your original transmission code differs from MFKA, contact J-Spec Auto before purchasing this transmission.

This reduces the chance of ordering the wrong unit.

Honda Accord vs. Acura TSX Fitment

Although the Accord and TSX share components from Honda’s K-series drivetrain family, they should not automatically be considered identical.

Differences can exist in:

• Transmission identification
• Final-drive configuration
• Sensors
• Electrical components
• Wiring
• Mounting hardware
• ECU/PCM calibration
• Application-specific external parts

Therefore, anyone installing this JDM transmission into a USDM Accord or Acura TSX should compare the replacement unit directly with the original transmission.

JDM-to-USDM Installation Information

A JDM Honda transmission may require application-specific components from the original US-market transmission.

Depending on the application, these may include:

• Sensors
• Electrical components
• Wiring or harness components
• Brackets
• Mounts
• Shift-related components
• External hardware

Place the original and replacement transmissions side by side before installation.

KEEP YOUR ORIGINAL TRANSMISSION

Do not discard the original USDM transmission until the JDM replacement has been completely installed and road-tested.

Your installer may need components from the original transmission.

What Is Included?

The sale includes the JDM MFKA automatic transmission assembly shown in the actual photographs.

Any sensors, brackets, mounts, wiring, hardware, or accessories attached to the transmission should be considered incidental unless specifically stated as included.

Use the actual listing photos to verify what is physically included.

Actual Transmission Photos

J-Spec Auto uses actual product photos rather than generic stock images for this transmission.

This allows you and your mechanic to inspect:

• Transmission case
• Electrical connectors
• Sensors
• Mounting locations
• Axle openings
• External components
• Identification markings
• Physical condition

before ordering.

The individual transmission shown in this listing carries:

Serial Number: MFKA-4RFFKAS

This is valuable first-party product information and should remain visible on the page.

IMPORTANT INSTALLATION PROCEDURE

Correct installation is critical to the life of any replacement automatic transmission.

1. Diagnose the Original Failure

Before installing another transmission, determine why the original transmission failed.

Check for:

• Contaminated transmission fluid
• Internal debris
• Transmission cooler contamination
• Restricted cooler lines
• Solenoid problems
• Sensor faults
• Wiring problems
• Electrical faults
• ECU/PCM-related issues

Correct the underlying problem before operating the replacement transmission.

2. Compare Both Transmissions Before Installation

Place the original USDM transmission and JDM replacement side by side.

Compare:

• Transmission case
• Transmission identification
• Sensors
• Electrical connectors
• Mounting locations
• Axle openings
• Cooler connections
• Brackets
• External hardware

Resolve any differences before installation.

3. Transfer Required USDM Components

Some original components may need to be transferred to the JDM transmission.

Depending on the application, these may include:

• Sensors
• Electrical components
• Brackets
• Mounts
• Wiring-related components
• Application-specific external hardware

Use the original vehicle-specific components when required.

4. Service the Transmission Cooler and Lines

This is especially important when the original transmission suffered an internal failure.

Debris and contaminated ATF can remain inside:

• Transmission cooler
• Cooler lines
• Heat exchanger
• Related fluid passages

Properly service the cooling circuit before operating the replacement transmission.

Do not circulate contaminated fluid from the failed transmission into the replacement unit.

5. Inspect Accessible Seals

Inspect accessible seals while the transmission is outside the vehicle.

Pay particular attention to axle seals and other serviceable sealing points.

Replacing questionable seals before installation can prevent additional labor later.

6. Use the Correct Honda Automatic Transmission Fluid

Use the Honda-specified ATF appropriate for the exact vehicle and transmission application.

Do not fill the transmission with an unspecified generic ATF simply because it is labeled for automatic transmissions.

Correct fluid specification is important for:

• Hydraulic pressure
• Shift quality
• Clutch operation
• Lubrication
• Transmission life

Verify the appropriate current Honda/Acura fluid specification before filling.

7. Fill the Transmission Correctly

A replacement transmission that has been drained during removal and shipping may require a different amount of fluid than a routine drain-and-fill service.

Do not use the normal drain-and-fill quantity as an assumed total replacement fill.

Fill and verify the transmission according to the applicable Honda service procedure.

8. Scan the Vehicle

Scan the vehicle before and after installation.

Check for transmission, engine, and communication-related diagnostic trouble codes.

Do not immediately assume a transmission-related code means the replacement transmission is defective.

Sensors, wiring, connectors, solenoids, voltage problems, or PCM issues can also affect transmission operation.

9. Perform an Initial Road Test

After installation and proper fluid verification, perform a controlled road test.

Monitor:

• Drive engagement
• Reverse engagement
• 1–2 shift
• 2–3 shift
• 3–4 shift
• 4–5 shift
• Torque-converter operation
• Abnormal noise
• Fluid leaks
• Warning lights
• Diagnostic trouble codes

Afterward, inspect for leaks and verify the fluid level again according to the proper procedure.

Installation Checklist

• Verify VIN

• Confirm 2.4L K-series application

• Identify original transmission code

• Confirm FWD application

• Compare original and JDM transmissions

• Compare electrical connectors

• Compare sensors

• Compare mounts and brackets

• Transfer required original components

• Inspect accessible seals

• Service transmission cooler and lines

• Correct the cause of the original failure

• Use correct Honda-specified ATF

• Fill transmission properly

• Scan vehicle for diagnostic trouble codes

• Verify Drive engagement

• Verify Reverse engagement

• Perform controlled road test

• Inspect for leaks

• Recheck fluid level

Common Signs of a Failing Honda Accord Automatic Transmission

Symptoms that may lead an Accord or TSX owner to search for a replacement transmission include:

• Transmission slipping
• Delayed Drive engagement
• Delayed Reverse engagement
• Hard or harsh shifts
• RPM flare between shifts
• Incorrect gear changes
• Transmission-related warning light
• Diagnostic trouble codes
• Abnormal transmission noise
• ATF leaks
• Loss of vehicle movement

However, proper diagnosis should be performed before replacing the transmission.

Electrical, sensor, solenoid, wiring, and fluid-related problems can sometimes produce similar symptoms.

Why Consider a Low-Mileage JDM Honda Transmission?

A quality JDM transmission can provide an alternative to rebuilding a worn or failed high-mileage transmission.

Benefits can include:

• Genuine OEM Honda construction
• Lower-mileage replacement option
• Cost-effective alternative to some rebuilds
• Original Honda engineering
• Actual unit available for inspection
• Individual transmission identification
• Replacement option for an otherwise good Accord or TSX

Proper fitment and professional installation remain critical.

Why Buy From J-Spec Auto?

J-Spec Auto has specialized in JDM engines, transmissions, vehicles, and automotive parts for more than 20 years.

We supply professional repair shops, mechanics, automotive enthusiasts, and vehicle owners throughout the United States.

J-Spec Auto Advantages

• More than 20 years of JDM industry experience
• Approximately 100 engines and transmissions sold per month
• JDM engine and transmission specialists
• Actual product photographs
• Individual serial identification
• Quality-focused sourcing in Japan
• Transmission inspection before sale
• Nationwide freight shipping
• Local pickup in Richmond / Henrico, Virginia
• Fitment assistance before purchase
• 90-Day Parts Warranty
• Large inventory of Honda engines and transmissions

When buying a used transmission, the actual unit matters.

J-Spec Auto gives buyers the ability to see the transmission being purchased and verify important fitment details before ordering.

Shipping

J-Spec Auto ships transmissions throughout the continental United States.

Freight Shipping

Engines and transmissions ship by freight.

Current J-Spec Auto shipping information indicates orders normally ship within 1–2 business days, with estimated continental U.S. delivery generally taking approximately 2–7 business days after shipment.

Local Pickup

Local pickup is available in:

Henrico / Richmond, Virginia

Convenient for customers throughout:

• Richmond
• Henrico
• Glen Allen
• Central Virginia
• Northern Virginia
• Maryland
• Washington D.C.

Inspect freight shipments immediately upon arrival and document visible damage according to J-Spec Auto’s shipping policy.

90-Day Parts Warranty

This transmission currently carries a:

90-Day Parts Warranty

Warranty coverage is subject to J-Spec Auto’s current warranty terms and conditions.

Professional installation is strongly recommended.

Frequently Asked Questions

What transmission does a 2003 Honda Accord 2.4L use?

The 2003 Accord 2.4L was available with a 5-speed automatic transmission. Exact transmission identification should be verified before ordering because Honda used application-specific transmission codes.

Will this transmission fit a 2004 Honda Accord 2.4L?

This MFKA transmission may fit compatible 2004 Honda Accord 2.4L applications. Verify the VIN and original transmission code before ordering.

Will it fit a 2005 Honda Accord 2.4?

It may fit compatible 2005 Accord 2.4L automatic applications. Compare the original transmission code, connectors, sensors, and configuration before purchase.

Will this fit a 2006 Honda Accord?

This transmission is intended for compatible 2.4L automatic applications within the listed Accord range. Exact fitment should be verified by VIN and original transmission identification.

Will it fit a 2007 Honda Accord 2.4L?

Potentially, yes. However, do not determine fitment solely from year and engine displacement. Verify the original transmission code first.

Will an MFKA transmission fit an Acura TSX?

MFKA transmissions may be associated with applications that overlap with certain Accord/TSX configurations. However, exact interchange must be verified. Do not purchase an MFKA solely because your TSX has a 2.4L K-series engine.

Will this fit a 2004 Acura TSX?

It may fit compatible 2004 Acura TSX 2.4L applications, but transmission identification and configuration should be verified before purchase.

Will this fit a 2008 Acura TSX?

Do not assume compatibility solely because the live listing includes 2004–2008 TSX applications. Verify the original transmission code, VIN, connectors, and application before ordering.

What does MFKA mean?

MFKA is a Honda automatic transmission identification code used to help identify the transmission’s application and configuration.

Is MFKA the same as MGTA?

Do not assume MFKA and MGTA are identical or directly interchangeable. Differences in application, final drive, electronics, sensors, or calibration may affect compatibility.

Is MFKA the same as MCTA?

No automatic interchange should be assumed between MFKA and MCTA. Verify the original transmission identification and application before substitution.

Is this a 5-speed transmission?

Yes. This listing is for a 5-speed automatic transmission.

Is this transmission FWD?

Yes. This transmission is intended for compatible front-wheel-drive applications.

Does this transmission fit K24 engines?

This transmission is associated with compatible Honda/Acura 2.4L K-series applications. However, having a K24 engine alone does not guarantee transmission compatibility.

Should I reuse my original sensors?

Depending on the application, your installer may need to transfer compatible sensors or other vehicle-specific external components from the original transmission.

Do I need to service the transmission cooler and lines?

Yes. The cooling circuit should be properly inspected and serviced, particularly if the original transmission suffered an internal failure.

What transmission fluid should I use?

Use the correct Honda-specified automatic transmission fluid for the exact vehicle and transmission application. Verify the current specification using Honda/Acura service information before filling.

Should I replace the axle seals?

Inspect accessible seals while the transmission is outside the vehicle. Replacing worn or questionable seals before installation can prevent leaks and additional labor.

Is this transmission inspected?

J-Spec Auto inspects imported transmissions before sale. Contact J-Spec Auto if you need specific inspection information for this individual unit.

Is the transmission pictured the actual one I will receive?

Yes. The photographs show the actual transmission offered for sale.

What is the serial number?

The individual unit currently listed is identified as:

MFKA-4RFFKAS

Does this transmission have a warranty?

Yes. The current listing includes a 90-day parts warranty, subject to J-Spec Auto’s warranty terms.

Do you ship Honda transmissions nationwide?

Yes. J-Spec Auto offers freight shipping throughout the continental United States.

Can I pick it up in Virginia?

Yes. Local pickup is available from J-Spec Auto in Henrico / Richmond, Virginia.

How do I confirm fitment?

Send J-Spec Auto:

VIN + model year + engine size + original transmission code + clear photos of the transmission identification and connectors.

This provides a much better basis for confirming fitment than year and engine size alone.