JDM M29A 2007–2010 Honda Odyssey / 2007–2008 Acura TL Type-S 3.5L V6 5-Speed Automatic FWD Transmission

Replace your slipping, delayed-engagement, harsh-shifting, noisy, damaged, or failed transmission with this low-mileage JDM Honda M29A 5-speed automatic transmission from J-Spec Auto Sports.

This genuine Honda JDM transmission targets compatible 2007–2010 Honda Odyssey 3.5L V6 applications and compatible 2007–2008 Acura TL Type-S 3.5L V6 applications.

The live J-Spec product page identifies this unit as Item ID 253431, Product Code M29A Transmission, automatic transmission, 2007–2010, and SKU M29A Transmission-30. The current structured application list includes both the Honda Odyssey and Acura TL.

The primary drivetrain relationships are:

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

and

Acura TL Type-S → 2007–2008 → J35A8 3.5L V6 → M29A JDM Application → 5-Speed Automatic → FWD

Independent JDM transmission sellers also identify M29A as a 2007–2008 Acura TL Type-S 3.5L transmission, which supports using Type-S rather than generic “Acura TL” in the title and fitment copy.

Quick Details

• Make: Honda / Acura
• Primary Models: Odyssey / TL Type-S
• Honda Odyssey Years: 2007–2010
• Acura TL Type-S Years: 2007–2008
• Engine Family: J35
• Engine Size: 3.5L
• Engine Configuration: V6
• Transmission Code: M29A
• Transmission Type: Automatic
• Number of Gears: 5-Speed
• Drivetrain: Front-Wheel Drive / FWD
• Transmission Fluid: Honda Genuine ATF DW-1
• Condition: Used JDM / Low Mileage
• Origin: Japan
• Item ID: 253431
• SKU: M29A Transmission-30
• Actual Product Photos: Yes
• Warranty: 90 Days
• Shipping: Nationwide Freight
• Installation: Available
• Local Pickup: Richmond / Henrico, Virginia

M29A 5-SPEED AUTOMATIC TRANSMISSION

The primary transmission code for this page is:

M29A

The live J-Spec page correctly identifies the transmission as a 5-speed automatic for Honda/Acura 3.5L V6 applications.

This transmission uses:

• Five forward gears
• Torque-converter operation
• Electronic shift control
• Integrated front differential
• Front-wheel-drive transaxle configuration

This transmission is not a CVT.

HONDA ODYSSEY APPLICATION

The M29A is well documented in J-Spec’s own historical inventory as a replacement for 2007–2010 Honda Odyssey 3.5L V6 applications.

For example, J-Spec previously listed another physical M29A transmission with serial M29A-1000386 specifically for 2007–2010 Odyssey 3.5L.

For this listing, the recommended Odyssey fitment language is:

2007–2010 Honda Odyssey 3.5L V6 – M29A application after code and configuration verification

ACURA TL TYPE-S APPLICATION

The current page says:

2007–2008 Acura TL 3.5L V6

That wording should be more precise.

The standard 2007–2008 Acura TL used a 3.2L V6, while the TL Type-S used a 3.5L V6.

Therefore, replace:

2007–2008 Acura TL 3.5L

with:

2007–2008 Acura TL Type-S 3.5L V6

This is an important accuracy and SEO improvement because users specifically search:

2008 Acura TL Type S transmission

Acura TL Type S M29A

J35A8 automatic transmission

STANDARD TL 3.2L WARNING

Do not market this page as a universal replacement for all 2007–2008 Acura TL models.

The standard TL used a 3.2L V6, whereas the Type-S used the 3.5L engine.

Although Honda discussion forums contain questions about installing M29A into base-model TLs, those discussions specifically warn that JDM interchange is not guaranteed.

For this product, use:

Acura TL Type-S 3.5L only unless other fitment is independently verified.

J35-SERIES 3.5L V6 APPLICATION

This transmission is associated with Honda’s J35-series 3.5L V6 applications.

For Odyssey applications, J-Spec has historically advertised the M29A with J35A.

For the Acura TL Type-S, the U.S. Type-S used the J35A8 3.5L V6.

For SEO, the safest product wording is:

J35-Series 3.5L V6

with:

J35A / J35A8 applications – verify exact engine and transmission configuration

VEHICLE COMPATIBILITY

2007 Honda Odyssey 3.5L V6 Automatic

• J35-series 3.5L V6
• M29A replacement application
• 5-speed automatic
• FWD
• Verify original transmission identification

2008 Honda Odyssey 3.5L V6 Automatic

• 3.5L V6
• M29A
• 5-speed automatic
• FWD
• Verify connectors and solenoids

2009 Honda Odyssey 3.5L V6 Automatic

• 3.5L V6
• M29A replacement application
• FWD
• Verify VIN and full physical configuration

2010 Honda Odyssey 3.5L V6 Automatic

• J35-series 3.5L
• Automatic
• FWD
• Verify M29A compatibility before purchase

2007 Acura TL Type-S 3.5L Automatic

• J35A8 3.5L V6
• M29A JDM application
• 5-speed automatic
• FWD
• Type-S only unless additional fitment has been verified

2008 Acura TL Type-S 3.5L Automatic

• J35A8 3.5L V6
• M29A JDM transmission application
• 5-speed automatic
• FWD
• Verify complete configuration before purchase

M29A vs. M97A

This is one of the most important corrections.

M29A and M97A are not the same transmission code.

The live M29A product page is clearly identified as:

M29A

However, another indexed J-Spec version incorrectly changes its Feature section to:

Transmission Code: M97A

and then claims 2008–2010 Accord/VCM compatibility.

That content should be completely removed from every M29A page.

Your site already has separate dedicated M97A products for Accord/Odyssey VCM applications.

The clean separation should be:

This page = M29A

Other dedicated page = M97A

Never combine M29A and M97A within the same Product Code, Serial Number, title, H1, FAQ, or schema.

PRODUCT CODE IDENTIFICATION

The live page currently has:

Product Code: M29A Transmission

I recommend shortening this to:

Product Code: M29A

That is cleaner for:

• Inventory management
• Google product entities
• Bing product indexing
• Search snippets
• AI/LLM retrieval
• Customer code searches

Keep the transmission type in a separate field.

SERIAL NUMBER

The current live page has:

Serial Number: M29A

That is not an individual serial number; it simply repeats the transmission code.

If this physical unit has an actual stamped code/serial such as:

M29A 10xxxxx

use the full physical identifier.

If no individual serial is readable, leave Serial Number blank rather than entering only M29A.

This is especially important because J-Spec has other M29A inventory with true serial numbers, such as M29A-1000386 and M29A 1005303.

JDM-TO-USDM FITMENT

This is a Japanese-market transmission.

Before installation, compare the JDM M29A directly with the original U.S.-market transmission.

Verify:

• M29A identification
• Bellhousing
• Transmission case
• Torque converter
• Electrical connectors
• Shift solenoids
• Pressure-control solenoids
• Speed sensors
• Pressure switches
• Range switch
• Cooler fittings
• Axle openings
• Mounting points
• External brackets
• Wiring

Compatible external components from the original transmission may need to be transferred.

Keep the original transmission until installation and road testing are complete.

SOLENOIDS

The live Details section specifically states:

Flush the transmission lines. Use only Honda ATF. Clean the solenoids.

That instruction should remain, but it can be improved:

• Inspect all solenoids.
• Clean solenoid screens.
• Inspect O-rings.
• Compare JDM and USDM connectors.
• Transfer verified original solenoids where required.
• Check wiring before startup.

WHAT IS INCLUDED?

The sale includes the actual M29A transmission shown in the product photographs.

Depending on what is pictured, the transmission may include:

• M29A 5-speed automatic transmission assembly
• Transmission case
• Integrated front differential
• Internal transmission components
• Valve-body components
• Attached sensors
• Attached solenoids
• Electrical connectors
• Torque converter when pictured
• External brackets when pictured

Only components shown in the actual inventory photos or specifically stated should be considered included.

ACTUAL PRODUCT PHOTOS

Use the actual product photographs to compare:

• M29A code
• Transmission case
• Bellhousing
• Torque converter
• Electrical connectors
• Solenoids
• Sensors
• Axle openings
• Cooler fittings
• Mounting points
• External brackets
• Overall condition

Actual inventory photos are particularly valuable for JDM transmissions because physical connector and case differences can matter even when model/year data appears similar.

HONDA ATF DW-1

Use:

Honda Genuine ATF DW-1

Do not use:

• Honda CVT fluid
• HCF-2
• Gear oil
• Unverified universal ATF
• Fluid drained from the failed transmission

This is a conventional 5-speed automatic transmission, not a CVT.

NEVER REUSE OLD TRANSMISSION FLUID

Always start the replacement M29A with fresh correct-specification Honda ATF.

Used fluid may contain:

• Metal particles
• Clutch material
• Friction debris
• Oxidized ATF
• Dirt
• Other contamination

Contaminated fluid can shorten the life of the replacement transmission.

FLUSH THE TRANSMISSION COOLER AND LINES

The live product page specifically instructs installers to flush the transmission lines.

J-Spec’s warranty requirements also state that the transmission cooling lines should be flushed and inspected according to manufacturer recommendations.

Before installation:

• Flush the cooler lines.
• Inspect the transmission cooler.
• Remove contaminated ATF.
• Check for restrictions.
• Verify fluid flow.
• Replace components that cannot be properly cleaned.

Never connect a clean replacement transmission to a contaminated cooler system.

INSPECT THE TORQUE CONVERTER

J-Spec’s transmission requirements call for proper torque-converter alignment.

Before installation:

• Inspect converter hub.
• Inspect splines.
• Check seal surface.
• Compare converter configuration.
• Fully seat the converter inside the transmission.

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

Improper converter seating can damage the transmission pump.

REPLACE ACCESSIBLE SEALS

J-Spec’s warranty requirements specifically call for replacing accessible transmission service components including front and axle seals.

Inspect and replace as necessary:

• Torque-converter/front seal
• Left axle seal
• Right axle seal
• Cooler-line seals
• Shift-shaft seal
• Other accessible O-rings and seals

INSPECT THE FLEXPLATE

J-Spec’s transmission installation requirements also call for checking the flexplate for cracks or excessive starter-tooth wear.

Inspect:

• Flexplate cracks
• Converter-bolt holes
• Starter ring gear
• Excessive wear
• Warping

Do not install the replacement transmission against a damaged flexplate.

INSPECT FRONT AXLES

Because this is a FWD application, inspect:

• Left CV axle
• Right CV axle
• CV joints
• Axle splines
• CV boots
• Intermediate shaft where applicable
• Bearings
• Excessive play

Axle problems can create vibration or clunking that may be mistaken for transmission trouble.

SCAN THE VEHICLE BEFORE REMOVAL

Record all transmission and engine diagnostic trouble codes before removing the original unit.

Pay attention to:

• Gear-ratio codes
• Shift-solenoid codes
• Pressure-control codes
• Pressure-switch codes
• Speed-sensor codes
• Torque-converter codes
• PCM communication faults

Diagnosing the original cause of failure can protect the replacement transmission.

PCM / TCM RESET AND RELEARN

J-Spec’s transmission warranty requirements specifically call for resetting control-module codes after installation.

After installation, complete applicable:

• PCM reset
• Transmission code clearing
• Adaptive learning
• Idle relearn
• Shift relearn
• Road-test verification

Use Honda/Acura-compatible diagnostic equipment when required.

INITIAL STARTUP CHECKLIST

Before road testing:

• Confirm M29A code.
• Confirm 3.5L J35-series engine application.
• Confirm FWD drivetrain.
• Confirm 5-speed automatic configuration.
• Verify Odyssey or TL Type-S application.
• Compare original and JDM transmissions.
• Compare bellhousing.
• Compare torque converter.
• Compare connectors.
• Inspect and clean solenoids.
• Flush cooler lines.
• Inspect cooler.
• Replace accessible seals.
• Check flexplate.
• Fully seat torque converter.
• Fill with Honda Genuine ATF DW-1.
• Verify proper fluid level.
• Connect all transmission wiring.
• Verify front axles.
• Check cooler fittings.
• Verify transmission mounts.
• Confirm Park.
• Confirm Reverse.
• Confirm Drive.
• Clear applicable codes.
• Scan for faults.
• 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 noises
• Warning lights
• ATF leaks

Avoid aggressive acceleration until proper transmission operation has been confirmed.

After the road test:

• Recheck fluid level.
• Inspect for leaks.
• Scan for DTCs.
• Recheck cooler-line connections.
• Inspect axle areas.
• Confirm normal shift quality.

COMMON SIGNS OF HONDA M29A TRANSMISSION PROBLEMS

A failing automatic transmission may produce:

• Delayed Drive engagement
• Delayed Reverse engagement
• Harsh shifts
• Transmission slipping
• Shift flare
• Shudder
• Failure to upshift
• Poor downshifts
• Torque-converter problems
• Abnormal transmission noise
• Burnt ATF
• Warning lights
• Diagnostic trouble codes
• Fluid leaks

However, similar symptoms can result from:

• Solenoid faults
• Pressure-switch faults
• Valve-body issues
• Wiring problems
• Incorrect ATF
• Low fluid
• Contaminated ATF
• Torque-converter faults
• Worn mounts
• Axle problems

Proper diagnosis should be completed before replacing the complete transmission.

WHY CHOOSE THIS JDM M29A TRANSMISSION?

This JDM M29A provides an OEM Honda-based replacement option for compatible Odyssey and Acura TL Type-S applications.

Key features include:

• Genuine JDM Honda transmission
• M29A transmission code
• 3.5L J35-series application
• 5-speed automatic configuration
• FWD drivetrain
• Low-mileage Japanese import
• Inspected before sale
• Actual inventory photos
• Individual Item ID
• 90-day limited warranty
• 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
• Transmission-code identification
• Individual inventory tracking
• Application-specific fitment guidance
• Honda/Acura JDM drivetrain experience
• Nationwide freight shipping
• Local Richmond / Henrico pickup
• Installation options
• Limited warranty coverage

INDIVIDUAL INVENTORY INFORMATION

Transmission Code: M29A
Vehicle Applications: Honda Odyssey / Acura TL Type-S
Honda Odyssey Years: 2007–2010
Acura TL Type-S Years: 2007–2008
Engine: J35-Series 3.5L V6
Transmission: 5-Speed Automatic
Drivetrain: FWD
Fluid: Honda Genuine ATF DW-1
Item ID: 253431
SKU: M29A Transmission-30
Condition: Used JDM / Low Mileage
Warranty: 90 Days

90-DAY LIMITED WARRANTY

The live product page currently shows a 90-day warranty for Item ID 253431.

J-Spec’s general transmission installation requirements include:

• Inspect flexplate
• Replace applicable seals
• Flush and inspect cooling lines
• Properly align torque converter
• Fill with manufacturer-specification fluid
• Reset control-module codes

Keep documentation for all required installation procedures.

FREQUENTLY ASKED QUESTIONS

What transmission code is this?

The transmission code is M29A.

What years does this M29A fit?

The current J-Spec listing targets 2007–2010 Honda Odyssey and 2007–2008 Acura TL 3.5L applications.

Which Acura TL does the 3.5L application refer to?

The 2007–2008 Acura TL Type-S used the 3.5L V6. Standard TL models used a 3.2L engine. Therefore, the page should specify TL Type-S 3.5L rather than generic TL.

Is M29A a 5-speed automatic?

Yes. The live J-Spec listing identifies it as a 5-speed automatic.

Is M29A a CVT?

No. It is a conventional torque-converter automatic transmission.

Is this transmission FWD?

Yes. The listed applications are front-wheel drive.

What engine is this transmission used with?

The M29A is associated with compatible J35-series 3.5L V6 applications.

Is M29A the same as M97A?

No. Do not combine those codes. J-Spec has separate M97A inventory pages, while this product is M29A.

Why does another indexed J-Spec description say M97A?

That is an inconsistent older description block and should be corrected. The physical product and current page title identify this transmission as M29A.

Will it fit a standard 2007–2008 Acura TL 3.2L?

Do not advertise that interchange without independent verification. The M29A 3.5L Acura application is best identified as the TL Type-S.

Will it fit a 2007 Honda Odyssey?

It targets compatible 2007 Odyssey 3.5L applications after transmission-code and physical configuration verification.

Will it fit a 2008 Honda Odyssey?

It targets compatible 2008 Odyssey 3.5L applications.

Will it fit a 2009 Honda Odyssey?

It targets compatible 2009 Odyssey 3.5L automatic applications.

Will it fit a 2010 Honda Odyssey?

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

Should the transmission lines be flushed?

Yes. Both the live product page and J-Spec’s transmission requirements call for transmission-line service.

Should the solenoids be cleaned?

Yes. The live Details section specifically instructs installers to clean the solenoids.

What transmission fluid should be used?

Use Honda Genuine ATF DW-1 for current service unless Honda service information for the specific vehicle requires otherwise.

Can Honda CVT fluid be used?

No. This is not a CVT.

Should the torque converter be fully seated?

Yes. J-Spec’s installation requirements specifically require proper torque-converter alignment.

Should the axle seals be replaced?

Inspect and replace applicable front and axle seals during installation. J-Spec’s requirements specifically include these service items.

Does the transmission require a relearn?

Applicable control-module codes should be reset after installation, and additional Honda/Acura adaptive procedures may be required.

Is this transmission rebuilt?

No. This is a used OEM JDM transmission, unless specifically stated otherwise.

Does it have a warranty?

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

ORDER YOUR JDM HONDA M29A TRANSMISSION

Replace your worn or failed transmission with this low-mileage JDM M29A 3.5L V6 5-speed automatic FWD transmission.

This genuine Honda JDM transmission targets compatible:

2007–2010 Honda Odyssey 3.5L V6

and

2007–2008 Acura TL Type-S 3.5L V6

applications after complete fitment verification.

Transmission Code: M29A
Engine: J35-Series 3.5L V6
Transmission: 5-Speed Automatic
Drivetrain: FWD
Fluid: Honda Genuine ATF DW-1
Item ID: 253431
SKU: M29A Transmission-30
Warranty: 90 Days

Verify the VIN, original transmission identification, engine configuration, electrical connectors, solenoids, sensors, torque converter, axle interfaces, mounts, cooler fittings, and complete physical configuration before ordering.