JDM 2013–2014 Subaru Legacy TR580FHDAA CVT Transmission – 2.5L AWD 3.70 Final Drive

Replace your slipping, shuddering, noisy, or failed CVT with a low-mileage JDM Subaru Legacy TR580FHDAA transmission from J-Spec Auto Sports.

This genuine Subaru Lineartronic CVT targets compatible 2013–2014 Subaru Legacy 2.5L AWD applications with a matching 3.70 final-drive configuration.

Subaru used several TR580 transmission variations across different vehicles and production years. Therefore, buyers should never choose a replacement transmission based only on the TR580 family name.

Instead, compare the complete transmission code, final-drive ratio, electrical connectors, sensors, mounting points, and drivetrain configuration before installation.

J-Spec Auto Sports imports this transmission directly from Japan. In addition, our team provides the individual transmission identification so customers can compare the JDM unit with their original USDM transmission before installation.

Quick Details

• Vehicle: Subaru Legacy
• Model Years: 2013–2014
• Transmission Code: TR580FHDAA
• Serial Number: TR580FHDAA 082981
• Transmission Type: Lineartronic CVT
• Engine: 2.5L Non-Turbo
• Drivetrain: AWD
• Final Drive: 3.70
• Condition: Used JDM / Low Mileage
• Origin: Japan
• Item ID: 54862
• Warranty: 90 Days
• Shipping: Nationwide Freight Shipping
• Installation: Affordable Installation Available
• Local Pickup: Henrico / Richmond, Virginia

Subaru TR580FHDAA Transmission Specifications

The TR580 belongs to Subaru’s Lineartronic continuously variable transmission family.

Unlike a traditional automatic transmission with a fixed number of forward gears, the TR580 continuously adjusts its operating ratio according to engine load, throttle position, and vehicle speed.

As a result, the CVT provides smooth acceleration without shifting through conventional fixed gears.

Technical Specifications

Transmission Code: TR580FHDAA
Transmission Type: Lineartronic CVT
Vehicle Application: Subaru Legacy
Engine Application: 2.5L Non-Turbo
Drivetrain: AWD
Final Drive: 3.70
Condition: Used OEM/JDM
Origin: Japan

Most importantly, this unit carries the TR580FHDAA identification and 3.70 final-drive configuration.

Always compare those specifications with the original transmission before installation.

Important: This Is a CVT, Not a Conventional 5-Speed Automatic

The TR580FHDAA is a continuously variable transmission.

Therefore, it should not be described as a conventional 5-speed automatic.

A traditional automatic transmission changes between fixed gear ratios. In contrast, Subaru’s Lineartronic CVT continuously changes its operating ratio to match driving conditions.

For that reason, the most accurate product description is:

Lineartronic CVT Automatic

rather than:

5-Speed Automatic

This distinction also helps customers searching specifically for a replacement Subaru Legacy CVT.

Why the 3.70 Final Drive Matters

The 3.70 final-drive ratio is one of the most important fitment specifications on this transmission.

Subaru’s AWD system requires correctly matched drivetrain gearing.

Therefore, do not install another TR580 simply because it physically bolts to the engine.

Different TR580 variants can have differences involving:

• Final-drive ratio
• Valve body
• Sensors
• Solenoids
• Electrical connectors
• Internal calibration
• Transmission case
• Mounting points
• AWD configuration

Consequently, an incorrect transmission or drivetrain ratio can cause binding, abnormal operation, premature wear, or AWD drivetrain damage.

Always confirm the complete transmission configuration before installation.

Vehicle Compatibility

This TR580FHDAA transmission targets compatible:

2013 Subaru Legacy 2.5L AWD

Verify:

• TR580FHDAA transmission configuration
• 2.5L non-turbo application
• AWD drivetrain
• 3.70 final drive
• Electrical connectors
• Sensors
• Mounting configuration

2014 Subaru Legacy 2.5L AWD

Compatible applications should also match the:

• TR580FHDAA configuration
• 2.5L engine
• AWD drivetrain
• 3.70 final drive
• Electrical configuration

Because Subaru used multiple transmission codes, always verify the original unit rather than ordering only by model year.

TR580FHDAA vs. TR580FHEAA

The complete Subaru transmission suffix matters.

TR580FHDAA and TR580FHEAA should not automatically be treated as the same transmission.

Although both belong to the TR580 family, differences can involve production specification, electronics, sensors, valve-body configuration, or other application-specific components.

Therefore, verify:

• Complete transmission code
• Serial number
• Vehicle year
• Engine
• Final-drive ratio
• Valve body
• Sensors
• Solenoids
• Electrical connectors
• Wiring
• Transmission case
• Mounting points

Never purchase a replacement based only on the first five characters, TR580.

JDM-to-USDM Fitment

This transmission came from a Japanese-market vehicle.

Although the core transmission can serve as a replacement for compatible U.S.-market Subaru applications, external differences may 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
• Transmission mounts
• Axle connections
• Driveshaft connection
• Cooler fittings
• Range switch
• Torque converter
• Final-drive configuration

When necessary, transfer compatible external components from the original USDM transmission.

Most importantly, never cut wiring, force connectors, or modify the replacement transmission before confirming compatibility.

What Is Included?

The sale includes the actual Subaru TR580FHDAA CVT represented in the current product photos.

Depending on the individual inventory unit, attached components may include:

• TR580FHDAA 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 all actual product photographs carefully before ordering.

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

Important CVT Installation Procedure

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

Contamination, incorrect fluid, a restricted cooler, unresolved electrical problems, incorrect final-drive gearing, or improper setup can damage the replacement transmission.

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

Diagnose the Original Transmission Failure

First, determine why the original CVT failed.

Possible causes include:

• Valve-body problems
• Solenoid faults
• Internal CVT wear
• Bearing damage
• Torque-converter problems
• Overheating
• Contaminated fluid
• Restricted cooler
• Sensor faults
• Wiring problems
• Incorrect fluid level
• Transmission control problems

Correcting the original problem helps protect the replacement transmission.

Confirm the 3.70 Final Drive

Before installation, verify the complete AWD drivetrain configuration.

This transmission uses a 3.70 final drive according to the current J-Spec inventory information.

Therefore, confirm that the vehicle’s drivetrain configuration matches.

Do not assume the rear differential is correct simply because the replacement transmission bolts into the vehicle.

An incorrect front-to-rear ratio can cause drivetrain binding and damage.

Flush the Transmission Cooler and Lines

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

A failed transmission can circulate:

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

Consequently, contamination left inside the cooling circuit can enter the replacement CVT shortly after startup.

Clean the entire circuit before installation.

If the cooler cannot be properly cleaned, replace it.

Do not skip this step.

Use the Correct Subaru CVT Fluid

Fill the transmission with the correct Subaru-specified Lineartronic CVT fluid for the exact application.

Do not use conventional automatic transmission fluid.

Likewise, do not choose fluid simply because a generic product claims compatibility with many CVTs.

The correct Subaru CVT fluid provides the required:

• Lubrication
• Hydraulic operation
• Friction characteristics
• Cooling
• Internal component protection

Always verify the factory fluid specification for the exact vehicle and transmission before filling the unit.

Never Reuse Old CVT Fluid

Do not reuse fluid from the failed transmission.

Old CVT fluid may contain:

• Metal particles
• Bearing debris
• Friction material
• Dirt
• Other contamination

Instead, start the replacement transmission with fresh, correct-specification 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 and inspect the front differential lubricant.
• Refill it with the correct Subaru-specified gear oil.
• Inspect the axle seals.
• Check the drain and fill plugs for leakage.

Using the wrong lubricant can cause serious drivetrain damage.

Inspect the Torque Converter

Next, inspect the torque converter and confirm compatibility.

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

Improper seating can damage the transmission pump during initial startup.

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

Inspect Accessible Seals

Check accessible seals while the CVT remains outside the vehicle.

Pay particular 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 drivetrain mounts can create:

• Excessive movement
• Vibration
• Clunking
• Harsh engagement
• Abnormal drivetrain noise

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

Replace any mount that shows cracking, separation, or excessive movement.

Scan the Vehicle Before Removing the Original CVT

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

Record all stored diagnostic 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 problems that could affect the replacement transmission.

CVT Relearn and Initialization

After installing the replacement TR580, the vehicle may require CVT initialization, learning, or adaptation procedures.

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

Therefore, follow the proper Subaru service procedure after installation.

Mechanical installation alone may not complete the repair.

Verify CVT Fluid Level Correctly

Correct fluid level remains critical to CVT operation.

First, fill the transmission according to Subaru’s procedure.

Next, cycle the transmission through the required selector positions.

Then bring the CVT to the specified operating conditions.

Finally, verify the fluid level according to the applicable Subaru service procedure.

Never guess the CVT fluid level.

Initial Startup Checklist

Before road testing:

• Confirm the 3.70 final-drive configuration.
• Verify CVT fluid level.
• Verify front differential oil level.
• Check all electrical connectors.
• Inspect cooler-line 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 operation
• 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 TR580 CVT Problems

A failing Subaru TR580 may produce:

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

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

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

Therefore, properly diagnose the vehicle before replacing the transmission.

Why Choose a Low-Mileage JDM TR580FHDAA?

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
• TR580FHDAA identification
• 2013–2014 Legacy application
• 2.5L non-turbo application
• Lineartronic CVT
• AWD configuration
• 3.70 final drive
• Individual serial number
• Actual product identification
• 90-day limited warranty
• Nationwide shipping
• Installation available

Most importantly, purchasing by complete transmission code and final-drive ratio helps reduce the chance of receiving an incorrect Subaru CVT.

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, automatic transmissions, manual transmissions, CVTs, and drivetrain components to repair facilities, 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 unit carries:

Transmission Code: TR580FHDAA
Serial Number: TR580FHDAA 082981
Item ID: 54862

The current J-Spec listing confirms the serial number and individual inventory ID.

As a result, customers can compare the exact unit with their original transmission before purchasing.

Actual Product Photos

J-Spec Auto Sports uses actual inventory photos whenever available.

Therefore, customers can inspect the physical transmission and compare it with their original unit instead of relying solely on generic stock photographs.

Inspected JDM Inventory

Our team inspects used drivetrain inventory before offering it for sale.

In addition, J-Spec Auto Sports focuses on sourcing quality engines and transmissions directly from Japan.

Affordable Installation Available

Professional installation is available through J-Spec Auto Sports.

Contact us for current pricing and scheduling.

Nationwide Shipping

J-Spec Auto Sports ships JDM engines, transmissions, and drivetrain components throughout the continental United States.

Therefore, customers nationwide can purchase this Subaru Legacy TR580FHDAA CVT.

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.

Shipping

J-Spec Auto Sports can prepare this Subaru Legacy CVT for nationwide freight shipment.

Shipping costs depend 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 freight damage.

If damage exists, document it with the carrier immediately.

90-Day Warranty

J-Spec Auto Sports backs this TR580FHDAA transmission with a 90-day limited warranty, subject to current warranty terms and installation requirements. The current product page confirms a 90-day warranty.

Review the complete warranty policy before installation.

Also keep receipts for:

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

Frequently Asked Questions

What transmission does the 2013–2014 Subaru Legacy 2.5L use?

Compatible 2013–2014 Subaru Legacy 2.5L AWD applications use Subaru Lineartronic CVT transmissions. This listing specifically targets the TR580FHDAA with a 3.70 final drive.

Is the TR580FHDAA a CVT?

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

Is this a 5-speed automatic transmission?

No. The TR580 is a continuously variable transmission rather than a conventional automatic with five fixed forward gears.

What is the final-drive ratio?

This transmission has a 3.70 final-drive ratio according to the current J-Spec listing.

Why does the 3.70 final drive matter?

Subaru AWD systems require correctly matched drivetrain gearing. An incorrect transmission or rear differential ratio can cause binding and drivetrain damage.

Will this fit a 2013 Subaru Legacy 2.5L?

It targets compatible 2013 Legacy 2.5L AWD applications with the matching TR580FHDAA configuration and 3.70 final drive.

Will this fit a 2014 Subaru Legacy 2.5L?

It targets compatible 2014 Legacy 2.5L AWD applications when the original transmission configuration matches.

Is TR580FHDAA the same as TR580FHEAA?

Do not automatically assume interchangeability. Although both belong to the TR580 family, the different suffix codes can identify application-specific differences.

Can another TR580 replace my TR580FHDAA?

Possibly, but only after confirming interchange. Compare the complete code, final drive, electrical connections, valve body, sensors, case, and vehicle application first.

What CVT fluid should I use?

Use the Subaru-specified Lineartronic CVT fluid for the exact vehicle and transmission application.

Can I use regular automatic transmission fluid?

No. Do not substitute conventional ATF for the required 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 transmission cooler?

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

Can I reuse the old CVT fluid?

No. Always use fresh, correct-specification fluid.

Does a replacement CVT require a relearn?

Depending on the repair, Subaru may require initialization, learning, or adaptation procedures. Use Subaru-compatible diagnostic equipment and follow the applicable service procedure.

Do I need to transfer parts from my 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, low-mileage JDM/OEM transmission.

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 this transmission have a warranty?

Yes. J-Spec Auto Sports provides a 90-day limited warranty, subject to current warranty terms.

Do you offer installation?

Yes. Affordable installation is available. Contact J-Spec Auto Sports for current pricing and scheduling.

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
• Engine information
• Complete original transmission code
• Final-drive information
• Photos of the original transmission
• Photos of the electrical connectors

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

Order Your JDM Subaru Legacy TR580FHDAA CVT

If your 2013–2014 Subaru Legacy needs a replacement CVT, this low-mileage JDM TR580FHDAA Lineartronic AWD transmission with a 3.70 final drive provides an OEM Subaru-based replacement option for compatible 2.5L applications.

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

Verify the complete TR580FHDAA code, 3.70 final-drive configuration, and electrical connections before ordering.