JDM 2003–2007 Honda Accord / 2004–2008 Acura TSX MFKA 2.4L 5-Speed Automatic Transmission

Replace your slipping, harsh-shifting, noisy, damaged, or failed automatic transmission with a low-mileage JDM MFKA 5-speed automatic transmission from J-Spec Auto Sports.

This genuine Honda transmission targets compatible 2003–2007 Honda Accord 2.4L and 2004–2008 Acura TSX 2.4L front-wheel-drive applications.

This exact inventory unit carries serial number MFKA-4009459 and Item ID 251597. The live J-Spec page also confirms a 5-speed automatic configuration, actual product photos, SKU MT905 MFKA 4009459, and a 90-day warranty.

The current page title, however, incorrectly says 2003–2007 Acura TSX. The Details section on the same page correctly lists 2004–2008 Acura TSX 2.4L, so I would align the title, description, compatibility section, FAQs, image metadata, and schema with that correct year range.

Because Honda used several different automatic transmission codes across K24-powered vehicles, buyers should not select a replacement transmission by model year or engine size alone.

Instead, verify the complete transmission code, vehicle application, VIN, electrical configuration, torque converter, case, mounts, axle openings, and external components before installation.

Quick Details

• Product: JDM Honda / Acura Automatic Transmission
• Transmission Code: MFKA
• Serial Number: MFKA-4009459
• Honda Accord Application: 2003–2007 2.4L
• Acura TSX Application: 2004–2008 2.4L
• Engine Family: K24-Series
• TSX Engine: K24A2 2.4L
• Transmission Type: 5-Speed Automatic
• Drivetrain: Front-Wheel Drive / FWD
• Condition: Used JDM / Low Mileage
• Origin: Japan
• Item ID: 251597
• SKU: MT905 MFKA 4009459
• Photos: Actual Product Photos
• Warranty: 90 Days
• Shipping: Nationwide Freight Shipping
• Local Pickup: Henrico / Richmond, Virginia

What Is an MFKA Transmission?

MFKA is a Honda automatic transmission identification code used with certain K-series 2.4L front-wheel-drive applications.

This transmission uses:

5 forward speeds
Electronic automatic control
Torque converter
Front-wheel-drive transaxle configuration

For Google and AI search, the strongest product relationship is:

Honda Accord / Acura TSX → K24-Series 2.4L → MFKA → 5-Speed Automatic → FWD

That is more precise than a generic “K24 automatic transmission” description.

MFKA-4009459 Individual Identification

This individual transmission carries:

MFKA-4009459

Keep that exact serial number visible near the top of the page.

It gives customers a specific inventory unit to reference and helps differentiate this page from your many other MFKA listings.

For this reason, I recommend using the serial number in:

• Product schema
• Image metadata
• Internal inventory records
• Order documentation
• Customer fitment discussions

while keeping the broader H1 focused on the searchable MFKA application.

Honda Accord Compatibility

2003 Honda Accord 2.4L

This MFKA targets compatible 2003 Accord four-cylinder automatic applications after complete fitment verification.

Before ordering, compare:

• Original transmission code
• VIN
• Bellhousing
• Connectors
• Sensors
• Solenoids
• Torque converter
• Mounting configuration

2004 Honda Accord 2.4L

Compatible 2004 Accord 2.4L automatic applications may use this MFKA configuration.

Verify the original transmission before purchase.

2005 Honda Accord 2.4L

This unit targets compatible 2005 Accord K24 automatic applications when the physical configuration matches.

2006 Honda Accord 2.4L

Compatible 2006 Accord 2.4L FWD automatic applications may use MFKA.

Again, verify the complete original transmission code and external components.

2007 Honda Accord 2.4L

This listing includes compatible 2007 Accord 2.4L automatic applications. The live Details section itself identifies 2003–2007 Honda Accord 2.4L.

Acura TSX Compatibility

2004 Acura TSX 2.4L

The live Details section correctly begins the TSX application at 2004.

This MFKA targets compatible 2004 TSX 2.4L automatic applications after full fitment verification.

2005 Acura TSX 2.4L

Compatible 2005 TSX automatic models may use this MFKA transmission.

2006 Acura TSX 2.4L

This listing targets compatible 2006 Acura TSX 2.4L automatic applications.

Compare the original transmission, converter, electrical connectors, and external components before ordering.

2007 Acura TSX 2.4L

This MFKA may fit compatible 2007 TSX FWD automatic applications.

2008 Acura TSX 2.4L

The live J-Spec Details section explicitly includes 2004–2008 Acura TSX 2.4L.

Therefore, 2008 should appear in the title, compatibility section, FAQ, schema, and image metadata.

Important: Remove “2003 Acura TSX”

The current description literally lists:

2003 Acura TSX
2004 Acura TSX
2005 Acura TSX
2006 Acura TSX
2007 Acura TSX

I would remove 2003 Acura TSX and add 2008 Acura TSX.

That brings the description into alignment with the page’s own correct Applications field.

K24A vs. K24A2 Wording

The current title and description use K24A broadly.

I would refine that.

For the shared Accord/TSX listing, use:

K24-Series 2.4L

because different Accord versions use different K24 variants.

For the TSX-specific section, you can use:

K24A2 2.4L

This is more precise than describing every application simply as “K24A.”

Recommended Engine Wording

Use:

Engine Family: K24-Series 2.4L

Then in the TSX section:

Acura TSX Engine: K24A2 2.4L DOHC i-VTEC

That avoids overgeneralizing.

MFKA vs. MGTA

Your site carries separate MFKA and MGTA inventory.

Therefore, do not automatically treat:

MFKA = MGTA

Your other MFKA pages separately identify the code and the same broad Accord/TSX applications, which shows why the individual transmission code matters.

Possible differences can include:

• Internal gearing
• Final drive
• Valve body
• Sensors
• Solenoids
• Electrical connectors
• Torque converter
• Production revisions
• Electronic calibration

Verify interchange before substituting one code for another.

MFKA vs. MCTA

The same rule applies to MCTA.

Do not assume:

MFKA = MCTA

simply because both may bolt to a K24 engine.

Compare the complete transmission configuration.

This Is a 5-Speed Automatic

The live page correctly lists:

Type: Automatic
Gears: 5

Keep those fields.

This is a conventional 5-speed automatic transmission.

It is not a CVT.

Front-Wheel Drive

The current description correctly identifies the transmission as FWD.

Add a dedicated structured field:

Drivetrain: FWD

That gives Google, AI systems, and customers a clearer technical identifier.

JDM-to-USDM Fitment

Because this transmission came from a Japanese-market vehicle, external differences can exist compared with the original U.S.-market transmission.

Before installation, place both units side by side.

Compare:

• Complete transmission code
• Case
• Bellhousing
• Torque converter
• Electrical connectors
• Shift solenoids
• Pressure-control solenoids
• Speed sensors
• Pressure switches
• Range switch
• Cooler fittings
• Mounting brackets
• Transmission mounts
• Axle openings
• Wiring connections

When needed, transfer compatible original USDM external components.

Most importantly, keep the original transmission until the replacement MFKA has been installed and successfully road-tested.

Do not discard original sensors, brackets, solenoids, or hardware prematurely.

What Is Included?

The sale includes the actual MFKA transmission shown in the J-Spec product photographs.

Depending on what remains attached, the unit may include:

• MFKA 5-speed automatic transmission assembly
• Transmission housing
• Internal transmission components
• Valve-body components
• Sensors that remain attached
• Solenoids that remain attached
• Electrical connectors
• Torque converter when pictured or specifically stated
• Brackets when pictured

Only components shown in the actual product photos or explicitly listed should be considered included.

Actual Product Photos

The live product gallery includes actual inventory images, while several filenames remain generic, such as IMG_2348 through IMG_2360.

Keep the actual images but improve their metadata.

Customers should use the photos to compare:

• MFKA identification
• Bellhousing
• Torque converter
• Solenoids
• Sensors
• Electrical connectors
• Axle openings
• Cooler fittings
• Case
• Mounting locations

before ordering.

RECOMMENDED INSTALLATION PROCEDURE

Diagnose the Original Failure

Before installing the replacement MFKA, determine why the original transmission failed.

Possible causes include:

• Internal clutch wear
• Valve-body problems
• Shift-solenoid faults
• Pressure-control problems
• Torque-converter problems
• Overheating
• Low ATF
• Contaminated fluid
• Restricted cooler
• Wiring faults
• Sensor problems
• Mount problems

Correct the original issue before installing the replacement unit.

Flush the Transmission Cooler and Lines

Thoroughly clean the cooler and transmission lines.

A failed automatic transmission can circulate:

• Metal particles
• Friction material
• Clutch debris
• Contaminated ATF

Consequently, debris left in the cooling circuit can contaminate the replacement transmission.

Clean the complete system.

If the cooler cannot be properly cleaned, replace it.

Do not skip this step.

Use Honda / Acura ATF DW-1

For current service, use:

Honda / Acura ATF DW-1

Do not use:

• CVT fluid
• Honda HCF-2
• Gear oil
• Random generic ATF without confirming compatibility

Correct fluid supports:

• Hydraulic operation
• Shift quality
• Clutch operation
• Torque-converter performance
• Lubrication
• Heat control

Never Reuse Old ATF

Do not reuse fluid from the failed transmission.

Used ATF may contain:

• Metal particles
• Clutch debris
• Friction material
• Oxidized fluid
• Dirt

Start the replacement transmission with fresh fluid.

Inspect the Torque Converter

Compare the JDM torque converter with the original converter.

Check:

• Hub
• Splines
• Mounting
• Seal surface
• Overall configuration

Most importantly, make sure the converter fully seats inside the transmission before installation.

Never use bellhousing bolts to pull the transmission against the engine.

Inspect Accessible Seals

Check:

• Axle seals
• Torque-converter seal
• Cooler fittings
• Shift-shaft areas
• Case sealing surfaces

Replace questionable seals before installation.

Inspect Solenoids and Sensors

Compare the external electronic components with the original unit.

Inspect:

• Shift solenoids
• Pressure-control solenoids
• Speed sensors
• Pressure switches
• Range-related components
• Connectors
• Wiring

Look for corrosion, bent pins, damaged wiring, or contamination.

Transfer compatible original components when necessary.

Inspect Engine and Transmission Mounts

Check for:

• Cracks
• Separation
• Excessive movement
• Damaged brackets
• Loose hardware

Worn mounts can cause vibration, clunking, and harsh engagement.

Inspect Front Axles

Check both front axles for:

• Damaged splines
• Torn boots
• Joint play
• Grease leakage
• Bent components

An axle problem can create noise or vibration that may be mistaken for transmission failure.

Scan the Vehicle Before Removal

Record all diagnostic trouble codes before removing the original transmission.

Pay attention to:

• Shift-solenoid codes
• Pressure-control codes
• Gear-ratio codes
• Torque-converter codes
• Speed-sensor codes
• Engine codes
• Communication faults

Do not simply clear the codes.

Use them to identify any external problem that could affect the replacement transmission.

PCM / Transmission Relearn

After installation, perform the applicable Honda/Acura PCM reset, transmission initialization, or relearn procedure.

Use Honda-compatible diagnostic equipment when required.

INITIAL STARTUP CHECKLIST

Before road testing:

• Confirm MFKA identification.
• Verify serial number MFKA-4009459.
• Confirm Accord or TSX application.
• Verify K24-Series 2.4L application.
• Confirm FWD configuration.
• Fill with fresh Honda ATF DW-1.
• Verify ATF level.
• Check electrical connectors.
• Inspect solenoids and sensors.
• Verify cooler lines.
• Inspect axle seals.
• Confirm Park.
• Confirm Reverse.
• Confirm Drive.
• Check warning lights.
• Scan for diagnostic trouble codes.
• Inspect for ATF leaks.

INITIAL ROAD TEST

Begin with a gentle road test.

Monitor:

• Reverse engagement
• Drive engagement
• 1–2 shift
• 2–3 shift
• 3–4 shift
• 4–5 shift
• Downshifts
• Torque-converter lockup
• Shift flare
• Slipping
• Shudder
• Vibration
• Abnormal noise
• Warning lights
• ATF leaks

Avoid aggressive acceleration until normal operation has been confirmed.

Afterward, recheck the transmission for leaks and verify fluid level.

Why Choose This JDM MFKA Transmission?

A Japanese-import MFKA can provide an OEM-based replacement option for an Accord or TSX with a damaged or high-mileage transmission.

Benefits include:

• Genuine Honda OEM construction
• Low-mileage Japanese donor unit
• MFKA transmission identification
• Exact serial number MFKA-4009459
• K24-Series 2.4L application
• 5-speed automatic
• FWD drivetrain
• Actual product photos
• Individual Item ID
• 90-day limited warranty
• Nationwide shipping

Why Buy From J-Spec Auto Sports?

J-Spec Auto Sports specializes in Japanese engines, transmissions, and drivetrain components.

For this exact product, the strongest trust signals are the ones you can verify directly:

• Individual transmission code
• Exact serial number
• Actual product photos
• Inspection before sale
• Warranty
• Nationwide shipping
• Physical inventory in Virginia

Those are stronger than broad claims such as “perfect replacement” or “restore factory performance.”

Individual Inventory Identification

Transmission Code: MFKA
Serial Number: MFKA-4009459
Item ID: 251597
SKU: MT905 MFKA 4009459
Price: $495 at the time reviewed
Warranty: 90 Days

90-Day Limited Warranty

The live product page currently shows a 90-day warranty.

Recommended wording:

This Item ID 251597 includes a 90-day limited parts warranty, subject to J-Spec Auto Sports’ current warranty terms and installation requirements.

Keep documentation for:

• Correct Honda ATF
• Cooler flushing
• Replacement seals
• Professional installation
• Diagnostic procedures
• Related maintenance

FREQUENTLY ASKED QUESTIONS

What transmission code is this?

This individual transmission is MFKA, serial number MFKA-4009459.

Is the MFKA a 5-speed automatic?

Yes. The live listing identifies this unit as a 5-speed automatic.

What vehicles does it fit?

The live Applications field lists 2003–2007 Honda Accord 2.4L and 2004–2008 Acura TSX 2.4L.

Does this fit a 2003 Acura TSX?

Do not list a 2003 U.S.-market Acura TSX application. The current product description is inconsistent because it lists 2003 TSX while the correct Applications field begins at 2004.

Does it fit a 2008 Acura TSX?

The live Applications field specifically includes 2004–2008 Acura TSX 2.4L. Verify the original transmission code and vehicle configuration before purchase.

What engine works with this transmission?

This listing targets compatible K24-Series 2.4L applications. For the Acura TSX, use the more specific K24A2 designation.

Is this transmission FWD?

Yes. The current transmission specifications identify it as front-wheel drive.

Is this a CVT?

No. It is a conventional 5-speed automatic transmission.

Is MFKA the same as MGTA?

Do not automatically assume interchangeability. J-Spec carries separate MFKA and MGTA inventory.

Can I use any K24 automatic transmission?

No. Sharing a K24 engine family does not guarantee transmission compatibility.

What transmission fluid should I use?

Use the correct Honda/Acura automatic transmission fluid for the application; for current service, ATF DW-1 is the appropriate Honda/Acura specification to verify.

Should I flush the cooler?

Yes. Thoroughly clean the cooler and lines before installing the replacement transmission.

Can I reuse the old ATF?

No. Use fresh, correct-specification fluid.

Does the torque converter need to match?

Yes. Compare the JDM converter with the original before installation.

Do I need to transfer parts from the original transmission?

Possibly. Sensors, solenoids, switches, brackets, or other external components may need to be transferred if the JDM and USDM units differ.

Does it have a warranty?

Yes. The current page shows a 90-day warranty.

How do I verify fitment?

Provide:

• Vehicle year
• VIN
• Make/model
• Engine code
• Original transmission code
• Photo of the transmission tag
• Photos of electrical connectors
• Photos of the converter
• Photos of the case and mounts

Compare the complete physical configuration before ordering.

Order Your JDM Honda Accord / Acura TSX MFKA Transmission

If your compatible Honda Accord or Acura TSX needs a replacement automatic transmission, this low-mileage JDM MFKA 5-speed automatic FWD transmission provides an OEM Honda-based replacement option for properly verified K24-Series 2.4L applications.

This exact inventory unit is:

Item ID: 251597
Transmission Code: MFKA
Serial Number: MFKA-4009459
SKU: MT905 MFKA 4009459
Warranty: 90 Days

Verify MFKA-4009459 against the original transmission before ordering.