JDM 2007–2010 HONDA ODYSSEY M29A 3.5L V6 5-SPEED AUTOMATIC TRANSMISSION

Replace your worn or failed Honda Odyssey transmission with this low-mileage JDM Honda M29A 5-speed automatic transmission from J-Spec Auto Sports.

This genuine used OEM Honda transmission was imported from Japan and is intended as a replacement option for compatible 2007–2010 Honda Odyssey 3.5L V6 FWD applications using the appropriate M29A configuration.

For the strongest technical and SEO identification, use:

Honda Odyssey → 2007–2010 → J35-Series 3.5L V6 → M29A → 5-Speed Automatic → FWD

The exact individual transmission offered on this page is identified as:

M29A 1000816

Because Honda used several related 5-speed automatic transmissions with its 3.5L V6 engines, transmission code and physical configuration are more important than engine displacement alone.

QUICK DETAILS

• Manufacturer: Honda
• Primary Vehicle: Honda Odyssey
• Model Years: 2007–2010
• Transmission Code: M29A
• Serial Number: M29A 1000816
• Engine Family: Honda J35-Series
• Engine Size: 3.5L
• Engine Configuration: V6
• Transmission Type: 5-Speed Automatic
• Gears: 5
• Drivetrain: Front-Wheel Drive / FWD
• Condition: Used OEM JDM / Low Mileage
• Origin: Japan
• Item ID: 254448
• SKU: MT952 M29A 100816
• Actual Product Photos: Yes
• Nationwide Freight Shipping: Available
• Affordable Installation: Available

M29A TRANSMISSION CODE

The most important identifier on Item 254448 is:

M29A

The individual serial number is:

M29A 1000816

Use this exact identification throughout the product page, including:

• Product title
• H1
• Short description
• Product specifications
• Image ALT text
• Image titles
• FAQ
• Structured data
• Inventory records

Honda transmission codes matter because two transmissions can attach to related J35-series engines while still having important internal or external differences.

5-SPEED AUTOMATIC TRANSMISSION

The M29A is a conventional:

5-Speed Automatic Transmission

It is not a CVT.

Therefore, the recommended WooCommerce product fields are:

Type: 5-Speed Automatic

Gears: 5

Drivetrain: FWD

Using the correct transmission type helps customers and search engines distinguish this unit from later Honda 6-speed automatic transmissions and other drivetrain configurations.

HONDA J35-SERIES 3.5L V6 APPLICATION

The M29A is associated with Honda’s:

3.5L J35-Series V6

engine family.

However, avoid identifying every M29A as a specific U.S.-market J35 engine code unless that application has been verified.

Honda used several J35 variants during this period. Differences included VTEC, VCM, emissions equipment, vehicle calibration, and transmission configuration.

Therefore, the safest product relationship is:

Honda Odyssey + 3.5L J35-Series V6 + M29A + FWD

2007–2010 HONDA ODYSSEY APPLICATION

The primary target application for this M29A transmission is compatible:

• 2007 Honda Odyssey 3.5L V6
• 2008 Honda Odyssey 3.5L V6
• 2009 Honda Odyssey 3.5L V6
• 2010 Honda Odyssey 3.5L V6

However, Honda used different drivetrain and calibration combinations depending on trim level, engine configuration, and production date.

For that reason, always verify the customer’s original transmission code before ordering.

IMPORTANT – DO NOT MARKET M29A AS 2008–2012 ACCORD M97A

Do not automatically advertise this M29A transmission as the replacement transmission for a 2008–2012 Honda Accord V6.

The 2008–2012 Honda Accord V6 is commonly associated with Honda’s:

M97A

5-speed automatic transmission configuration.

M29A and M97A should not be treated as identical transmission codes simply because both are Honda V6 5-speed automatic transmissions.

Possible differences can involve:

• Internal ratios
• Final drive
• Valve body
• Solenoids
• Pressure switches
• Sensors
• Electrical connectors
• Torque converter
• Case configuration
• Mounting
• Axle interfaces
• Control strategy

Therefore:

M29A does not automatically equal M97A.

If a customer’s original transmission is M97A, use a correctly identified M97A replacement unless full interchangeability has been independently verified.

RELATED ACURA TL TYPE-S APPLICATION

The M29A transmission family is also commonly associated with certain 2007–2008 Acura TL Type-S 3.5L FWD applications.

However, do not assume that every M29A Odyssey transmission is a direct plug-and-play TL Type-S replacement.

Before selling Item 254448 for an Acura application, verify:

• Original transmission code
• Vehicle VIN
• Engine
• Case configuration
• Bellhousing
• Sensors
• Solenoids
• Electrical connectors
• Torque converter
• Mounting brackets
• Axle interfaces

This additional application can be useful for search visibility, but exact interchange should remain code- and configuration-dependent.

FWD CONFIGURATION

This transmission is intended for:

Front-Wheel Drive / FWD

applications.

Do not advertise Item 254448 as an AWD transmission.

Drivetrain configuration affects:

• Transmission housing
• Differential
• Output configuration
• Axles
• Mounting
• Electronics

Therefore, confirm the target vehicle is using the appropriate FWD transmission configuration.

M29A VS. M97A

The M29A and M97A are related Honda V6 automatic transmission codes, but they should remain separate product identities.

For this listing:

Transmission Code: M29A

For a verified Accord M97A listing:

Transmission Code: M97A

Never change a physical M29A transmission into an M97A product simply to broaden compatibility.

Exact code targeting provides better:

• Fitment accuracy
• Customer confidence
• Google search relevance
• AI / LLM recognition
• Inventory control
• Warranty documentation

JDM-TO-USDM FITMENT

Japanese-market and North American-market Honda transmissions can differ even when they belong to related transmission families.

Therefore, place the original transmission and Item 254448 side by side before installation.

Compare:

• Transmission code
• Transmission serial
• Bellhousing
• Case configuration
• Torque converter
• Valve body
• Electrical connectors
• Sensors
• Solenoids
• Pressure switches
• Range switch
• Wiring
• Axle openings
• Transmission mounts
• Mounting brackets
• Shift linkage
• Cooler fittings

If compatible original components need to transfer, complete those changes before installing the transmission.

KEEP THE ORIGINAL TRANSMISSION

Do not discard the original transmission until Item 254448 has been installed and road-tested successfully.

The original transmission may provide compatible:

• Sensors
• Solenoids
• Pressure switches
• Electrical components
• Mounting brackets
• Shift linkage
• External hardware
• Cooler fittings
• Torque-converter-related components

Keeping the original unit nearby makes JDM-to-USDM comparison much easier.

ELECTRICAL CONNECTORS

Before installation, compare the electrical connections on Item 254448 with the customer’s original transmission.

Inspect:

• Main transmission connector
• Connector shape
• Connector pin count
• Harness routing
• Speed sensors
• Pressure switches
• Solenoids
• Range switch

Do not cut, splice, or modify connectors simply because two transmissions appear physically similar.

First, verify the correct Honda application and compatible component configuration.

SOLENOIDS AND PRESSURE SWITCHES

Honda automatic transmissions rely heavily on electronically controlled hydraulic components.

Before installation, inspect and compare:

• Shift solenoids
• Pressure-control solenoids
• Clutch pressure switches
• Solenoid connectors
• Mounting locations
• Wiring

If the JDM and USDM configurations differ, transfer compatible original components only when the interchange has been verified.

TORQUE CONVERTER

Verify whether the torque converter is included with this exact Item 254448.

If supplied, inspect:

• Converter hub
• Splines
• Pilot
• Seal surface
• Mounting points
• Overall physical condition

Most importantly, fully seat the torque converter inside the transmission before mating the transmission to the engine.

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

Improper torque-converter installation can damage the transmission pump.

HONDA AUTOMATIC TRANSMISSION FLUID

Use the correct Honda-approved automatic transmission fluid for the target vehicle and transmission.

For current service of Honda conventional automatic transmissions of this generation, Honda ATF DW-1 is the current replacement fluid for applications that originally specified Honda ATF-Z1.

Do not use:

• Honda HCF-2 CVT fluid
• Generic CVT fluid
• Manual transmission fluid
• Differential gear oil
• Unverified universal fluid

Correct ATF is essential for hydraulic operation, clutch control, torque-converter function, lubrication, and shift quality.

DO NOT USE CVT FLUID

The M29A is not a CVT.

Therefore, do not fill it with:

Honda HCF-2 CVT Fluid

Use the correct Honda automatic transmission fluid specification for the target application.

FLUSH THE TRANSMISSION COOLER AND LINES

Before operating Item 254448, thoroughly flush and inspect the transmission cooling circuit.

A failed transmission can leave:

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

inside the cooler and cooler lines.

Consequently, connecting a replacement transmission to a contaminated cooling system can introduce debris directly into the replacement unit.

Before startup:

• Flush the cooler lines.
• Inspect the transmission cooler.
• Confirm proper flow.
• Remove contaminated ATF.
• Replace a cooler that cannot be properly cleaned.

INSPECT THE TRANSMISSION PAN

Before installation, inspect the transmission pan where appropriate.

Look for:

• Excessive metal
• Friction material
• Sludge
• Contaminated ATF
• Magnet buildup

Additionally, inspect serviceable filter or strainer components according to the applicable Honda service procedure.

INSPECT ACCESSIBLE SEALS

While the transmission is outside the vehicle, inspect:

• Front / torque-converter seal
• Axle seals
• Selector-shaft seal
• Cooler-line seals
• Case sealing surfaces

Replacing questionable accessible seals before installation can prevent unnecessary labor later.

DIAGNOSE THE ORIGINAL TRANSMISSION FAILURE

Before installing the JDM replacement transmission, determine why the original unit failed.

Possible causes can include:

• Internal clutch wear
• Valve-body problems
• Solenoid faults
• Pressure-switch problems
• Torque-converter failure
• Low ATF level
• Incorrect ATF
• Overheating
• Contaminated fluid
• Cooler restriction
• Sensor failure
• Wiring problems
• Worn mounts

Correcting the root cause reduces the chance of exposing the replacement transmission to the same problem.

INSTALLATION CHECKLIST

Before installation:

• Confirm Honda Odyssey application.
• Confirm 2007–2010 model year.
• Confirm 3.5L V6 engine.
• Confirm FWD drivetrain.
• Verify M29A transmission code.
• Verify serial M29A 1000816.
• Compare original and replacement transmissions.
• Compare transmission case.
• Compare bellhousing.
• Compare torque converter.
• Compare valve body.
• Compare electrical connectors.
• Compare sensors.
• Compare solenoids.
• Compare pressure switches.
• Compare range switch.
• Compare axle openings.
• Compare transmission mounts.
• Compare brackets.
• Compare shift linkage.
• Compare cooler fittings.
• Inspect accessible seals.
• Inspect fluid condition.
• Inspect transmission pan where appropriate.
• Flush the transmission cooler.
• Flush cooler lines.
• Fill with the correct Honda-approved ATF.
• Check for leaks.
• Scan the vehicle for transmission-related trouble codes.

INITIAL STARTUP PROCEDURE

After installation, fill the transmission according to the appropriate Honda service procedure.

Next, start the engine and allow ATF to circulate.

Slowly move the selector through each gear position while monitoring engagement.

Afterward:

• Confirm Reverse engagement.
• Confirm Drive engagement.
• Check for abnormal noise.
• Inspect cooler connections.
• Inspect axle seals.
• Check for fluid leaks.
• Recheck ATF level.
• Scan the PCM for transmission-related trouble codes.

Avoid aggressive acceleration during the initial test.

MULTIPLE HEAT CYCLES

Run several controlled heat cycles after installation.

Because the torque converter and cooler circuit continue filling during initial operation, the ATF level may change.

During each cycle:

• Monitor transmission temperature.
• Recheck fluid level.
• Inspect cooler fittings.
• Check axle seals.
• Verify Reverse and Drive engagement.
• Look for leaks.

Once the ATF level remains stable, proceed with a conservative road test.

INITIAL ROAD TEST

Begin with gentle acceleration.

Monitor:

• Reverse engagement
• Drive engagement
• 1–2 shift
• 2–3 shift
• 3–4 shift
• 4–5 shift
• Downshifts
• Torque-converter lockup
• RPM flare
• Slipping
• Delayed engagement
• Harsh shifting
• Shudder
• Abnormal noise
• Warning lights
• Fluid leaks

After the road test, scan the vehicle again for stored or pending diagnostic trouble codes.

PCM / TRANSMISSION LEARNING

Depending on the repair and components transferred, PCM reset or transmission learning procedures may be required.

After installation:

• Clear relevant transmission codes.
• Confirm PCM communication.
• Complete applicable Honda relearn procedures.
• Perform a controlled road test.
• Rescan the vehicle.

Use a Honda-capable scan tool whenever possible.

COMMON HONDA ODYSSEY TRANSMISSION FAILURE SYMPTOMS

Possible symptoms of a worn or failed automatic transmission include:

• Delayed Drive engagement
• Delayed Reverse engagement
• Slipping
• Harsh shifts
• RPM flare
• Shudder
• Failure to upshift
• Abnormal transmission noise
• Torque-converter problems
• Burnt ATF
• Warning lights
• Transmission diagnostic trouble codes
• No vehicle movement

However, similar symptoms can also result from:

• Low ATF
• Incorrect ATF
• Solenoid faults
• Pressure-switch problems
• Sensor failures
• Wiring issues
• Torque-converter faults
• Cooler restrictions
• Worn engine or transmission mounts
• Engine-related problems

Therefore, properly diagnose the complete vehicle before replacing the transmission whenever possible.

WHY THE COMPLETE M29A CODE MATTERS

Honda used several different automatic transmissions with 3.5L V6 engines.

Therefore, the following search term is too broad:

Honda 3.5L V6 transmission

A stronger product relationship is:

Honda Odyssey → 2007–2010 → J35-Series 3.5L V6 → M29A → 5-Speed Automatic → FWD

This exact relationship gives customers, technicians, Google, Bing, and AI search systems much clearer product information.

WHY CHOOSE ITEM 254448?

Item 254448 provides a code-specific JDM Honda transmission option for compatible 2007–2010 Odyssey 3.5L applications.

Key features include:

• Genuine used OEM Honda JDM transmission
• M29A transmission code
• Serial M29A 1000816
• Honda J35-series 3.5L V6 application
• 5-speed automatic
• FWD configuration
• Individual inventory tracking
• Actual product photographs
• Nationwide freight shipping
• Affordable installation available

WHY BUY FROM J-SPEC AUTO SPORTS?

J-Spec Auto Sports has specialized in Japanese engines, transmissions, and drivetrain components for more than 20 years.

Customers benefit from:

• Actual inventory photographs
• Individual serial-number tracking
• Transmission-code identification
• Honda drivetrain experience
• Fitment assistance
• Nationwide freight shipping
• Local pickup
• Affordable installation options
• Limited warranty coverage

Additionally, verifying the complete transmission configuration before purchase can help prevent costly compatibility problems.

INDIVIDUAL INVENTORY INFORMATION

Vehicle: Honda Odyssey

Primary Years: 2007–2010

Transmission Code: M29A

Serial Number: M29A 1000816

Engine Family: Honda J35-Series

Engine Size: 3.5L

Engine Configuration: V6

Transmission Type: 5-Speed Automatic

Gears: 5

Drivetrain: FWD

Fluid: Honda-approved automatic transmission fluid; Honda ATF DW-1 for current service where applicable

Item ID: 254448

SKU: MT952 M29A 100816

Condition: Used OEM JDM / Low Mileage

LIMITED WARRANTY

This transmission is sold subject to J-Spec Auto Sports’ current limited warranty terms and installation requirements.

Before installation, verify the warranty duration shown on the order and retain documentation for:

• Correct Honda-approved ATF
• Transmission cooler flushing
• Cooler-line service
• Seal replacement
• Torque-converter installation
• Required component transfers
• Professional installation
• Diagnostic procedures

FREQUENTLY ASKED QUESTIONS

What transmission code is this?

This exact transmission is:

M29A

What is the serial number?

M29A 1000816

What vehicle is the M29A transmission for?

This listing primarily targets compatible:

2007–2010 Honda Odyssey 3.5L V6 FWD

applications.

How many speeds does the M29A have?

This M29A is a:

5-speed automatic transmission

Is the M29A a CVT?

No.

It is a conventional automatic transmission.

Is this transmission FWD?

Yes.

This listing targets compatible:

Front-Wheel Drive / FWD

applications.

Will it fit a 2007 Honda Odyssey?

It targets compatible 2007 Honda Odyssey 3.5L FWD applications when the original transmission configuration matches.

Will it fit a 2008 Honda Odyssey?

It targets compatible 2008 Odyssey 3.5L applications after transmission-code verification.

Will it fit a 2009 Honda Odyssey?

It targets compatible 2009 Odyssey 3.5L applications when the M29A configuration matches.

Will it fit a 2010 Honda Odyssey?

It targets compatible 2010 Odyssey 3.5L applications after complete transmission verification.

Will this M29A fit a 2008–2012 Honda Accord V6?

Do not automatically substitute an M29A for an Accord transmission.

The 2008–2012 Honda Accord V6 is commonly associated with the M97A transmission code. If the customer’s original transmission is M97A, use a verified M97A replacement unless complete interchangeability has been established.

Is M29A the same as M97A?

No automatic interchange should be assumed.

M29A and M97A are separate Honda transmission codes and may differ internally, electronically, and externally.

Can M29A fit an Acura TL Type-S?

M29A is associated with certain 2007–2008 Acura TL Type-S 3.5L FWD applications. However, verify the original transmission code and complete configuration before ordering.

What fluid should I use?

Use the correct Honda-approved automatic transmission fluid for the target vehicle and transmission.

For current service of applicable Honda conventional automatic transmissions, Honda ATF DW-1 supersedes the older ATF-Z1 specification.

Can I use Honda HCF-2?

No.

HCF-2 is Honda CVT fluid. The M29A is not a CVT.

Should the transmission cooler be flushed?

Yes.

Flush and inspect the transmission cooler and cooler lines before operating the replacement transmission.

Should I keep my original transmission?

Yes.

Keep the original transmission until Item 254448 has been installed and road-tested successfully because sensors, solenoids, pressure switches, brackets, wiring, or other components may need to transfer.

Is the torque converter included?

Verify the actual Item 254448 photographs and inventory before promising torque-converter inclusion.

Does the transmission require relearning?

Depending on the repair and electronic components transferred, Honda PCM reset or transmission learning procedures may be required.

Is this transmission rebuilt?

No.

Unless specifically stated otherwise, this is a:

Used OEM JDM Honda transmission imported from Japan

ORDER ITEM 254448 – HONDA ODYSSEY M29A 3.5L V6 TRANSMISSION

Replace your worn or failed transmission with this low-mileage JDM Honda M29A 5-speed automatic FWD transmission for compatible 2007–2010 Honda Odyssey 3.5L V6 applications.

Vehicle: Honda Odyssey
Years: 2007–2010
Engine: Honda J35-Series 3.5L V6
Transmission Code: M29A
Serial: M29A 1000816
Transmission: 5-Speed Automatic
Drivetrain: FWD
Item ID: 254448
SKU: MT952 M29A 100816

Before ordering, verify the VIN, original transmission code, engine configuration, drivetrain, torque converter, electrical connectors, sensors, solenoids, pressure switches, axle openings, mounting brackets, cooler fittings, and complete physical case configuration.

For fitment assistance, nationwide freight shipping, or installation information, contact J-Spec Auto Sports before completing your order.