JDM 2009–2010 Subaru Legacy TR690JHAAA Lineartronic CVT Transmission – EJ253 2.5L AWD 3.70 Final Drive

Replace your slipping, shuddering, noisy, or failed CVT with a low-mileage JDM Subaru Legacy TR690JHAAA transmission from J-Spec Auto Sports.

This genuine Subaru Lineartronic CVT targets compatible early Subaru Legacy 2.5L non-turbo AWD applications equipped with the EJ253 engine and matching 3.70 final-drive configuration.

The current J-Spec listing identifies this inventory unit as Item ID 354, with a 3.70 final drive and serial information shown as TR690JHAA 076547. However, the same page lists the application as TR690JHAAA. Therefore, verify the complete physical transmission tag before publishing or shipping this unit.

Subaru used several TR690 variants that look similar but carry different suffixes, vehicle applications, and final-drive ratios. Consequently, buyers should never select a replacement CVT based only on the TR690 prefix.

Instead, match the complete transmission code, final-drive ratio, engine application, electrical connections, and AWD drivetrain configuration before installation.

Quick Details

• Vehicle: Subaru Legacy
• Model Years: 2009–2010 JDM application
• Transmission Code: TR690JHAAA – verify physical tag
• Serial Number: Listing currently shows TR690JHAA 076547
• Transmission Type: Lineartronic CVT
• Engine: EJ253 2.5L
• Engine Configuration: Naturally Aspirated / Non-Turbo Boxer 4-Cylinder
• Drivetrain: AWD
• Final Drive: 3.70
• Condition: Used JDM / Low Mileage
• Origin: Japan
• Item ID: 354
• SKU: MT162
• Photos: Actual Product Photos
• Warranty: 90 Days
• Shipping: Nationwide Freight Shipping
• Installation: Affordable Installation Available
• Local Pickup: Henrico / Richmond, Virginia

The current product page confirms Item ID 354, MT162, the 3.70 final drive, actual inventory photos, and a 90-day warranty.

Subaru TR690JHAAA Transmission Specifications

The TR690 belongs to Subaru’s early Lineartronic continuously variable transmission family.

Unlike a traditional automatic transmission with fixed forward gears, the TR690 continuously varies its operating ratio according to throttle position, engine load, and vehicle speed.

As a result, the CVT can keep the engine within an efficient operating range while providing smooth acceleration.

Technical Specifications

Transmission Family: TR690
Transmission Code: TR690JHAAA – subject to tag verification
Transmission Type: Lineartronic CVT
Engine Application: EJ253 2.5L Non-Turbo
Drivetrain: AWD
Final Drive: 3.70
Condition: Used OEM/JDM
Origin: Japan

Most importantly, this transmission’s 3.70 final-drive configuration should remain highly visible throughout the product page.

Important: Verify TR690JHAAA vs. TR690JHAA

The current listing has inconsistent identification.

The Details field shows:

Serial Number: TR690JHAA 076547

while the Applications field says:

TR690JHAAA

and the title shortens the product to:

TR690JHAA.

Before updating the page, inspect the transmission tag directly.

If the actual code is:

TR690JHAAA

then every field should say TR690JHAAA.

Do not leave shortened or conflicting codes in the title, Product Code, Serial Number, Details, and description.

That consistency is especially important for Subaru CVTs because one suffix character can identify a different drivetrain configuration.

Important: 3.70 Legacy vs. 3.90 Outback Configuration

This is the most important fitment point for this listing.

J-Spec’s separate TR690JHABA inventory uses a 3.90 final drive, while the TR690JHAAA Legacy listing uses 3.70.

Therefore, I would not broadly advertise this Item 354 as a direct Legacy and Outback replacement.

For this 3.70 unit, use:

Subaru Legacy – 3.70 Final Drive

as the primary application.

A 3.90 Outback transmission should not automatically replace a 3.70 Legacy transmission simply because both belong to the TR690 family.

Why the Final-Drive Ratio Matters

Subaru’s AWD drivetrain requires correctly matched front and rear gearing.

This transmission uses a 3.70 final-drive configuration.

Therefore, the vehicle’s rear differential and drivetrain setup must match the intended transmission configuration.

A mismatch can cause:

• AWD binding
• Excess drivetrain stress
• Abnormal tire scrub
• Center-transfer damage
• Differential damage
• Premature transmission wear

Consequently, always verify the rear differential ratio before operating the vehicle.

TR690JHAAA vs. TR690JHABA

These codes look very similar, but they should not automatically be treated as interchangeable.

TR690JHAAA

J-Spec’s current TR690JHAAA Legacy listing identifies:

• Legacy application
• 2.5L non-turbo
• AWD
• 3.70 final drive

TR690JHABA

Your separate J-Spec TR690JHABA listing identifies:

• Related Legacy/Outback application
• 2.5L non-turbo
• AWD
• 3.90 final drive

Therefore:

TR690JHAAA 3.70 ≠ TR690JHABA 3.90

The complete code and ratio matter.

TR690JHAAA vs. TR690JDJAA

J-Spec also stocks TR690JDJAA transmissions for early Legacy applications with a 3.70 final drive. Your Subaru CVT category lists those separately from TR690JHAAA.

Even when two Subaru CVTs share the same final-drive ratio, do not assume they are identical.

Differences may involve:

• Valve body
• Sensors
• Solenoids
• Electrical connectors
• Case configuration
• Internal revisions
• Transmission control strategy
• Production date

For that reason, match the complete transmission code whenever possible.

EJ253 2.5L Engine Application

This early TR690 application should be associated with the EJ253 2.5L naturally aspirated boxer engine, not the later FB25.

The current Item 354 Applications field itself identifies EJ25 / EJ253.

Therefore, use:

EJ253 2.5L Non-Turbo

throughout this particular listing.

This distinction matters because other J-Spec TR690 pages currently use FB25 terminology too broadly. Keeping Item 354 accurate can help J-Spec establish stronger technical credibility.

Vehicle Compatibility

This TR690JHAAA 3.70 transmission targets compatible Subaru Legacy applications.

2009 JDM Subaru Legacy 2.5L AWD

• EJ253 2.5L non-turbo
• AWD
• Lineartronic CVT
• Matching TR690 configuration
• 3.70 final drive

2010 Subaru Legacy 2.5L AWD

• EJ253 2.5L non-turbo
• AWD
• Lineartronic CVT
• Matching 3.70 drivetrain configuration

Because Japanese and U.S. model years can differ, always verify the VIN, production date, physical transmission code, and original drivetrain before ordering.

About Subaru Outback Fitment

The current Item 354 page also says Outback.

However, because your related Outback TR690JHABA inventory carries a different 3.90 final drive, I would not keep Outback as a blanket direct-fit application for this specific 3.70 unit.

If an Outback customer wants to use this transmission, verify:

• Original transmission code
• Rear differential ratio
• Vehicle VIN
• Production date
• Transmission case
• Electrical connectors
• Sensors
• AWD configuration

before confirming fitment.

JDM-to-USDM Fitment

This transmission came from a Japanese-market vehicle.

Although the core TR690 may work with compatible U.S.-market Legacy applications, external differences can exist.

Before installation, place the JDM and original USDM transmissions side by side.

Compare:

• Complete transmission code
• Transmission case
• Bellhousing
• Valve body
• Electrical connectors
• Sensors
• Solenoids
• Wiring
• Range switch
• Transmission mounts
• Axle connections
• Driveshaft connection
• Cooler fittings
• Torque converter
• Final-drive configuration

When necessary, transfer compatible external USDM components.

Most importantly, do not cut wiring, force connectors, or modify the JDM CVT until the complete interchange has been confirmed.

What Is Included?

The sale includes the actual Subaru CVT shown in the current product photos.

Depending on the individual unit, attached components may include:

• TR690 CVT assembly
• Transmission housing
• Internal CVT components
• Valve body
• Factory sensors that remain attached
• Solenoids that remain attached
• Electrical connectors
• Torque converter when pictured or specifically stated
• Brackets or mounts when pictured

Review every actual product photograph carefully.

Only components shown in the current photos or specifically listed should be considered included.

Important CVT Installation Procedure

Correct installation plays a major role in the life of any replacement Subaru CVT.

A good transmission can fail quickly if the vehicle still contains contaminated fluid, a restricted cooler, an unresolved electronic problem, or mismatched AWD gearing.

Therefore, diagnose the original failure before installing the JDM replacement.

Diagnose the Original CVT Failure

First, determine why the original transmission failed.

Possible causes include:

• Internal CVT wear
• Chain or pulley damage
• Valve-body problems
• Solenoid faults
• Torque-converter problems
• Bearing damage
• Overheating
• Fluid deterioration
• Cooler restrictions
• Sensor faults
• Wiring problems
• Incorrect fluid level
• Transmission-control faults

Correcting the original problem helps protect the replacement transmission.

Confirm the 3.70 Final Drive

Before installation, verify the complete AWD drivetrain ratio.

This transmission is listed with a 3.70 final drive.

Therefore, confirm that the rear differential and intended application match.

Do not assume the drivetrain is correct simply because the transmission physically bolts to the engine.

Flush the CVT Cooler and Lines

Thoroughly clean the CVT cooler and cooler lines before connecting the replacement transmission.

A failed CVT can circulate:

• Metal particles
• Bearing debris
• Friction material
• Contaminated fluid

Consequently, contamination left inside the cooler can enter the replacement transmission shortly after startup.

Clean the complete cooler circuit.

If the cooler cannot be properly cleaned, replace it.

Do not skip this step.

Use the Correct Subaru CVT Fluid

Fill the transmission only with the Subaru-specified CVT fluid appropriate for the exact early TR690 application.

Do not use conventional automatic transmission fluid.

Likewise, do not assume the fluid used in a later TR580 is automatically correct for an early TR690.

Verify the factory Subaru fluid specification by VIN and transmission application before filling the unit.

Correct CVT fluid provides the required:

• Lubrication
• Friction characteristics
• Hydraulic operation
• Chain and pulley protection
• Bearing protection
• Cooling

Never Reuse Old CVT Fluid

Do not reuse fluid from the failed transmission.

Old fluid may contain:

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

Instead, start the replacement transmission with fresh, correct-specification CVT fluid.

Service the Front Differential Separately

The Subaru CVT and front differential use separate lubricants.

Therefore, do not confuse CVT fluid with front differential gear oil.

Before startup:

• Drain the front differential oil.
• Inspect the drained lubricant.
• Refill with the correct Subaru-specified gear oil.
• Check the axle seals.
• Inspect the drain and fill plugs.

Using the wrong lubricant can cause severe transmission or differential damage.

Inspect the Torque Converter

Next, inspect the torque converter and confirm compatibility.

Make sure the converter fully seats inside the transmission before installation.

Improper seating can damage the pump during startup.

Therefore, never use bellhousing bolts to force the transmission against the engine.

Inspect Accessible Seals

Check accessible seals while the CVT remains outside the vehicle.

Pay close attention to:

• Axle seals
• Torque-converter seal
• Output areas
• Cooler connections
• Case sealing surfaces

Replace worn or leaking seals before installation.

Doing this work now can prevent additional labor later.

Inspect Engine and Transmission Mounts

Worn mounts can create:

• Excessive drivetrain movement
• Vibration
• Clunking
• Harsh engagement
• Abnormal driveline angles

Therefore, inspect all accessible engine and transmission mounts before installing the replacement unit.

Replace damaged components as necessary.

Scan the Vehicle Before Removing the Original CVT

Use Subaru-compatible diagnostic equipment before removing the failed transmission.

Record all stored trouble codes.

Pay particular attention to:

• CVT codes
• Valve-body codes
• Solenoid codes
• AWD codes
• Engine codes
• ABS/VDC codes
• Communication faults

Do not simply erase the codes.

Instead, diagnose any problem that could affect the replacement transmission.

CVT Relearn and Initialization

After installing a replacement TR690, the vehicle may require initialization, learning, or adaptation procedures.

Depending on the repair, Subaru-compatible diagnostic equipment may be necessary.

Therefore, follow the correct Subaru service procedure.

Mechanical installation alone may not complete the repair.

Verify CVT Fluid Level Correctly

Correct fluid level remains critical.

First, fill the CVT according to Subaru’s service procedure.

Next, cycle the transmission through the required selector positions.

Then bring the unit to the specified operating conditions.

Finally, verify fluid level according to the factory procedure.

Never guess the CVT fluid level.

Initial Startup Checklist

Before road testing:

• Confirm the complete transmission code.
• Verify the 3.70 final drive.
• Confirm rear differential compatibility.
• Verify CVT fluid level.
• Verify front differential oil level.
• Check electrical connectors.
• Inspect cooler connections.
• Check axle seals.
• Confirm Drive engagement.
• Confirm Reverse engagement.
• Check for warning lights.
• Listen for abnormal noises.
• Scan for trouble codes.
• Inspect for fluid leaks.

If anything appears abnormal, diagnose the problem before driving.

Initial Road Test

Begin with a gentle road test.

During the drive, monitor:

• Drive engagement
• Reverse engagement
• Smooth acceleration
• Engine RPM behavior
• CVT response
• AWD operation
• Transmission temperature
• Shuddering
• Vibration
• Bearing noise
• Warning lights
• Fluid leaks

Avoid aggressive acceleration until you confirm normal operation.

Afterward, scan the vehicle again and inspect the transmission for leaks.

Common Signs of Subaru TR690 CVT Problems

A failing TR690 CVT may produce:

• Shuddering
• Delayed Drive engagement
• Delayed Reverse engagement
• CVT slipping
• RPM flare
• Whining noise
• Bearing noise
• Jerking
• Overheating
• AWD warning lights
• Transmission warning lights
• Fluid leaks
• Diagnostic trouble codes

However, these symptoms do not always prove that the complete CVT has failed.

For example, valve-body problems, solenoid faults, torque-converter issues, incorrect fluid level, wiring faults, or electronic problems can create similar symptoms.

Therefore, diagnose the vehicle properly before replacing the transmission.

Why Choose a Low-Mileage JDM TR690JHAAA?

A Japanese-import Subaru CVT can provide an OEM-based replacement option for a damaged or high-mileage original transmission.

Benefits include:

• Genuine Subaru OEM construction
• Low-mileage Japanese donor unit
• TR690 transmission family
• TR690JHAAA identification when confirmed
• EJ253 2.5L application
• Lineartronic CVT
• AWD drivetrain
• 3.70 final drive
• Actual product photos
• Individual inventory identification
• 90-day limited warranty
• Nationwide shipping
• Installation available

Most importantly, buying by the complete transmission code and final-drive ratio helps reduce fitment errors.

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.

Our team supplies JDM engines, manual transmissions, automatic transmissions, CVTs, and drivetrain parts to repair shops, enthusiasts, and vehicle owners throughout the United States.

Rather than operating as a general salvage yard, we specialize in Japanese engines and transmissions.

Individual Transmission Identification

This inventory listing carries:

Item ID: 354
SKU: MT162
Final Drive: 3.70
Serial Number Currently Listed: TR690JHAA 076547

The live page confirms those details.

Before final publication, physically verify whether the full tag reads TR690JHAAA.

Actual Product Photos

The current listing tells buyers to review the actual photos for fitment and condition.

Keep that statement.

Actual inventory photography is particularly valuable with Subaru transmissions because buyers can compare:

• Case shape
• Connectors
• Sensors
• Mounting locations
• Cooler fittings
• Tag information

before ordering.

Affordable Installation Available

The live listing advertises affordable installation.

Keep that information near the Add to Cart button because local customers may prefer J-Spec to handle both the transmission and installation.

Nationwide Shipping

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

Freight cost depends on:

• Destination ZIP code
• Commercial or residential delivery
• Liftgate requirements
• Freight-terminal availability
• Delivery location

Before accepting delivery, inspect the pallet and transmission for visible damage.

Document any freight damage immediately.

Local Virginia Pickup

Local pickup is available from J-Spec Auto Sports in Henrico, Virginia.

Customers throughout Richmond, Central Virginia, Northern Virginia, Maryland, Washington D.C., and surrounding areas can also arrange pickup or ask about installation.

90-Day Limited Warranty

The current Item 354 listing carries a 90-day limited warranty, subject to J-Spec Auto Sports’ current warranty terms and installation requirements.

Review the complete warranty policy before installation.

Also keep receipts for:

• Correct Subaru CVT fluid
• Front differential gear oil
• Replacement seals
• Cooler flushing
• Professional installation
• Diagnostic procedures
• CVT relearn or initialization

FREQUENTLY ASKED QUESTIONS

What transmission is the TR690JHAAA?

TR690JHAAA is an early Subaru Lineartronic CVT configuration used in compatible Legacy 2.5L AWD applications.

Is the TR690JHAAA a CVT?

Yes. It belongs to Subaru’s Lineartronic continuously variable transmission family.

What engine works with this transmission?

This early application targets compatible EJ253 2.5L naturally aspirated boxer-engine vehicles. The current Item 354 page itself lists EJ25/EJ253.

Is this an FB25 transmission?

I would not describe Item 354 as an FB25 transmission. The live application information points to the earlier EJ253 configuration.

What is the final-drive ratio?

This specific listing states 3.70.

Why does the 3.70 final drive matter?

Subaru’s AWD drivetrain requires correctly matched gearing. A different transmission or rear differential ratio can create binding and drivetrain damage.

Is TR690JHAAA the same as TR690JHABA?

No direct interchange should be assumed. Your J-Spec JHABA inventory is listed with a 3.90 final drive, while JHAAA inventory is listed at 3.70.

Will this fit a Subaru Legacy?

It targets compatible early Legacy 2.5L AWD applications with the matching transmission code and 3.70 drivetrain configuration.

Will this fit a Subaru Outback?

Do not automatically advertise direct Outback fitment. Your related Outback-style TR690JHABA inventory uses a different 3.90 final drive. Verify the complete original transmission and differential ratio first.

Will this fit a 2009 Subaru Legacy?

It may fit the appropriate JDM/production application. Because U.S. and Japanese model-year timing can differ, verify VIN, production date, original code, and final drive.

Will it fit a 2010 Subaru Legacy?

It targets compatible 2010 Legacy 2.5L AWD applications with the matching TR690 and 3.70 drivetrain configuration.

Is this a conventional automatic transmission?

No. It is a Lineartronic CVT rather than a conventional geared automatic.

What CVT fluid should I use?

Use the exact Subaru-specified CVT fluid for the early TR690 application. Verify the fluid by VIN and factory service information before filling the unit.

Can I use regular ATF?

No. Conventional automatic transmission fluid should not replace the specified Subaru CVT fluid.

Is the front differential fluid the same as CVT fluid?

No. The front differential uses separate gear lubricant.

Should I flush the CVT cooler?

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

Can I reuse the old CVT fluid?

No. Always use fresh, correct-specification fluid.

Does the replacement CVT need a relearn?

Depending on the repair, initialization, learning, or adaptation procedures may be necessary. Follow the correct Subaru service procedure.

Do I need to transfer parts from the original transmission?

Possibly. JDM-to-USDM differences may require transferring compatible sensors, switches, mounts, brackets, or other external components.

Is this transmission rebuilt?

No, unless specifically stated otherwise. This listing represents a used JDM/OEM CVT.

Does it include the torque converter?

Only consider the torque converter included if it appears in the actual product photos or the listing specifically states that it comes with the transmission.

Does it have a warranty?

Yes. Item 354 currently carries a 90-day limited warranty.

Do you offer installation?

Yes. The live page advertises affordable installation.

Do you ship nationwide?

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

Can I pick it up locally?

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

How do I verify fitment?

Provide your:

• Vehicle year
• VIN
• Production date
• Engine code
• Complete original transmission code
• Rear differential ratio
• Photos of the original transmission
• Photos of the identification tag
• Photos of electrical connectors

For the best fitment verification, compare the transmission case, valve body, sensors, connectors, axle connections, driveshaft connection, and 3.70 final-drive configuration.

Order Your JDM Subaru Legacy TR690JHAAA CVT

If your compatible Subaru Legacy needs a replacement CVT, this low-mileage JDM TR690JHAAA Lineartronic AWD transmission with a 3.70 final drive provides an OEM Subaru-based replacement option for properly verified EJ253 2.5L applications.

J-Spec Auto Sports provides actual inventory photos, specific transmission identification, nationwide freight shipping, installation options, and a 90-day limited warranty.

Verify the complete physical transmission code and 3.70 final-drive configuration before ordering.