JDM 2014–2016 Subaru Forester TR580DHMAA FB25 2.5L Lineartronic CVT AWD Transmission – 3.70 Final Drive

Replace your slipping, shuddering, delayed-engagement, overheating, noisy, damaged, or failed CVT with this low-mileage JDM Subaru Forester TR580DHMAA Lineartronic CVT transmission from J-Spec Auto Sports.

This genuine Subaru JDM transmission targets compatible 2014–2016 Subaru Forester models equipped with the FB25 2.5L naturally aspirated boxer engine and Symmetrical All-Wheel Drive.

The current J-Spec inventory page identifies this individual unit as Item ID 53970, Product Code TR580DHMAA, CVT AWD automatic, 3.70 final drive, SKU MT625 TR580DHMAA, and a 90-day warranty.

The strongest U.S.-market drivetrain relationship is:

Subaru Forester → 2014–2016 → FB25 2.5L → TR580DHMAA → Lineartronic CVT → AWD → 3.70 Final Drive

QUICK DETAILS

• Make: Subaru
• Model: Forester
• Recommended U.S. Years: 2014–2016
• Engine Code: FB25
• Engine Size: 2.5L
• Engine Configuration: Naturally Aspirated Boxer 4-Cylinder
• Transmission Code: TR580DHMAA
• Transmission Family: TR580
• Transmission Type: Lineartronic CVT Automatic
• Drivetrain: AWD
• Final Drive: 3.70
• Rear Differential: Matching 3.70 Ratio Required
• CVT Fluid: Subaru-specification CVTF for exact application
• Front Differential Fluid: GL-5 75W-90
• Condition: Used JDM / Low Mileage
• Origin: Japan
• Item ID: 53970
• SKU: MT625 TR580DHMAA
• Actual Product Photos: Yes
• Warranty: 90 Days
• Shipping: Nationwide Freight
• Installation: Available
• Local Pickup: Richmond / Henrico, Virginia

TR580DHMAA LINEARTRONIC CVT

The most important identifier for this transmission is:

TR580DHMAA

Do not shorten the product identity to only:

TR580

because Subaru used many different TR580 variants with different:

• Final-drive ratios
• Valve-body configurations
• Electronic calibrations
• Sensor layouts
• Vehicle applications
• Production revisions

For product SEO, fitment, and AI/LLM understanding, the full code should appear prominently:

TR580DHMAA

TR580 TRANSMISSION FAMILY

The TR580 is Subaru’s compact Lineartronic continuously variable transmission.

The unit combines:

• Continuously variable ratio operation
• Torque converter
• Chain-and-pulley CVT system
• Electronic hydraulic control
• Integrated front differential
• AWD transfer system
• Transmission control module interaction

This is a CVT, not a conventional 4-speed, 5-speed, or 6-speed automatic.

FB25 2.5L APPLICATION

This TR580DHMAA pairs with compatible FB25 2.5L naturally aspirated Subaru applications.

The FB25 is a horizontally opposed boxer engine featuring:

• 2.5L displacement
• DOHC architecture
• Timing-chain design
• Naturally aspirated configuration

The correct drivetrain relationship is:

FB25 2.5L + TR580DHMAA + AWD + 3.70 Final Drive

Engine family alone does not guarantee transmission interchangeability.

IMPORTANT: 2011–2013 US FORESTER FITMENT

This is the most important correction on the current page.

The live J-Spec listing currently says:

2011–2013 Subaru Forester 2.5L CVT AWD

and calls the unit a direct fit.

However, U.S.-market 2011–2013 Foresters used:

4-Speed Automatic

or:

5-Speed Manual

not a Lineartronic CVT. Subaru’s own 2013 Forester brochure identifies the automatic as a 4-speed automatic, and Subaru’s 2011 quick-reference manual also describes the Forester automatic as a 4-speed SPORTSHIFT unit.

Therefore, do not advertise this as:

Direct Fit 2011–2013 USDM Subaru Forester

Instead use:

JDM TR580DHMAA transmission; commonly used as a replacement for compatible 2014–2016 U.S.-market Forester 2.5L CVT applications after code and drivetrain verification.

Your own separate J-Spec TR580DHMAA page already advertises the code for 2014–2016 Forester 2.5L AWD CVT.

RECOMMENDED VEHICLE COMPATIBILITY

2014 Subaru Forester 2.5L CVT AWD

• FB25 2.5L
• TR580-family CVT
• AWD
• 3.70 configuration on applicable units
• Verify original transmission code
• Verify rear differential ratio

2015 Subaru Forester 2.5L CVT AWD

• FB25
• TR580
• AWD
• Verify TR580DHMAA interchange
• Verify VIN and transmission tag

2016 Subaru Forester 2.5L CVT AWD

• FB25 2.5L
• Lineartronic CVT
• AWD
• Verify original transmission code and electronics

J-Spec’s other TR580DHMAA listing targets 2014–2016 Forester 2.5L applications.

3.70 FINAL DRIVE

This individual transmission is listed with a:

3.70 Final Drive.

The matching rear differential ratio is critical on a Subaru AWD drivetrain.

Use:

TR580DHMAA 3.70 Transmission + Matching 3.70 Rear Differential

Before installation, verify:

• Transmission final-drive ratio
• Rear differential ratio
• Rear differential identification
• AWD transfer configuration
• Tire circumference
• Tire size

A front/rear ratio mismatch can cause:

• Drivetrain binding
• Tire scrubbing
• Excessive center-transfer load
• Overheating
• Differential damage
• Transmission damage

MATCHING REAR DIFFERENTIAL

The rear differential is not listed as included with this Item ID unless it is specifically shown in the product photographs.

Therefore, customers should verify the vehicle has the correct:

3.70 Rear Differential

before operating the transmission.

Inspect:

• Rear differential fluid
• Pinion seal
• Axle seals
• Mounts
• Bearings
• Driveshaft flange
• Rear axles

TR580DHMAA vs. TR580DHNAA

J-Spec also stocks related Subaru transmissions carrying:

TR580DHNAA

with the same 3.70 final-drive family.

However:

TR580DHMAA and TR580DHNAA are different complete transmission codes.

Do not automatically merge them into one Product Code.

For this individual product use:

TR580DHMAA

and mention DHNAA only as a related code that requires complete interchange verification.

TRANSMISSION CODE IDENTIFICATION

The live page currently shows:

Product Code: TR580DHMAA

which is good.

However, it also shows:

Serial Number: TR580DHMAA

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

The clean structure should be:

Product Code: TR580DHMAA

Transmission Code: TR580DHMAA

Serial Number: Use actual stamped serial number if readable

If no individual number is readable, leave the Serial Number field blank.

JDM-TO-USDM FITMENT

This transmission is imported from a Japanese-market Subaru.

JDM and USDM Subaru CVTs may differ in:

• Case brackets
• Bellhousing-mounted hardware
• Wiring
• Sensors
• Valve body
• TCM calibration
• Cooler configuration
• External brackets

Another JDM seller specifically notes that some TR580DHMAA/DHNAA units may lack certain bellhousing brackets and recommends ECU relearn.

Before installation, compare:

• Full transmission code
• Bellhousing
• Mounting brackets
• Torque converter
• Electrical connectors
• Valve body
• Transmission harness
• Speed sensors
• Range switch
• Cooler fittings
• Front differential
• Axle openings
• AWD transfer housing
• Transmission mounts

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

WHAT IS INCLUDED?

The current live description says:

Torque Converter and sensors (as pictured).

For a used individual product, the safer wording is:

The sale includes the TR580DHMAA transmission and components shown in the actual product photographs.

Depending on what is pictured, this may include:

• TR580DHMAA CVT assembly
• Transmission case
• Integrated front differential
• AWD transfer section
• Valve-body components
• Attached sensors
• Electrical connectors
• Torque converter when pictured
• Brackets when pictured

Only components shown in the actual product photographs or specifically stated should be considered included.

ACTUAL PRODUCT PHOTOS

Use actual product photos to show:

• TR580DHMAA transmission label
• Full serial number if visible
• Bellhousing
• Torque converter
• Valve-body area
• Electrical connectors
• Cooler fittings
• Front axle openings
• AWD transfer section
• Transmission mount areas
• Overall condition

A close-up of the actual TR580DHMAA code is especially valuable for Google Images, repair shops, and AI product search.

REMOVE “COMPRESSION TESTED”

The current description says the transmission is:

“thoroughly compression tested.”

That should be removed.

Compression testing is an engine test, not a transmission inspection method.

Use:

Inspected and evaluated before sale

or, if this matches your actual procedure:

Visually inspected, code verified, and checked for overall drivetrain condition before sale.

This same “compression-tested transmission” mistake also appears in your broader Subaru transmission category copy and should eventually be corrected sitewide.

CVT FLUID

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

The TR580 service procedure requires:

• Specified Subaru CVTF
• Temperature-controlled fluid-level setting
• Fluid temperature approximately 35–45°C / 95–113°F during the level procedure
• Engine idling while setting the final level.

Because Subaru used different CVT fluids across TR580 variants and production years, I recommend the product page state:

CVT Fluid: Verify Subaru OEM CVTF specification by VIN and transmission code before filling

rather than making an overly broad fluid claim unless you have the exact Subaru service specification for this unit.

FRONT DIFFERENTIAL FLUID

The front differential has a separate lubricant circuit from the CVT fluid.

For installation, use Subaru-specification gear oil, commonly:

75W-90 GL-5

according to the exact model specification.

Another JDM TR580 supplier specifically instructs installers to drain and refill the front differential with 75W-90 or 80W-90 gear oil to OEM specifications.

Do not mix:

• CVTF into the front differential
• Gear oil into the CVT hydraulic circuit

NEVER REUSE OLD CVT FLUID

Always start the replacement CVT with fresh correct-specification fluid.

Failed CVTs can contaminate the fluid with:

• Fine metal particles
• Chain/pulley material
• Friction material
• Valve-body debris
• Oxidized fluid

Reusing contaminated fluid can damage the replacement transmission.

SERVICE THE CVT COOLER AND LINES

Before installation:

• Inspect the transmission cooler.
• Flush or service the cooler lines.
• Remove contaminated fluid.
• Check for restrictions.
• Verify proper flow.
• Replace components that cannot be safely cleaned.

Never connect a replacement CVT to a contaminated cooling system.

INSPECT THE TORQUE CONVERTER

Check:

• Converter hub
• Splines
• Seal surface
• Mounting points
• Physical configuration

Fully seat the torque converter before mating the transmission to the engine.

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

REPLACE ACCESSIBLE SEALS

Inspect and replace worn or questionable:

• Torque-converter/front seal
• Front axle seals
• AWD output seals
• Cooler-line seals
• Other accessible O-rings

INSPECT THE VALVE BODY

The TR580 relies heavily on valve-body and electronic hydraulic control.

Inspect:

• Valve-body connectors
• Solenoids
• Wiring
• Speed sensors
• Pressure-control components
• Harness plugs

Compare the JDM valve-body configuration with the original USDM unit.

TCM PROGRAMMING / RELEARN

The current J-Spec page correctly warns that:

ECU/TCU reprogramming may be required.

I recommend making this stronger and more specific:

After installation, complete all applicable Subaru procedures, including:

• TCM reset
• CVT learning
• Calibration
• DTC clearing
• Adaptive relearn
• Road-test learning

Use Subaru Select Monitor or a professional scan tool with Subaru CVT functions.

INSPECT ALL FOUR TIRES

Subaru AWD vehicles are sensitive to tire circumference.

Verify:

• Same tire size
• Similar tread depth
• Correct pressures
• Similar rolling circumference

Mismatched tires can place unnecessary stress on the AWD drivetrain.

INITIAL STARTUP CHECKLIST

Before road testing:

• Confirm Forester application.
• Confirm FB25 2.5L engine.
• Confirm TR580DHMAA code.
• Confirm 3.70 final drive.
• Confirm matching 3.70 rear differential.
• Compare JDM and original transmission.
• Compare bellhousing and brackets.
• Inspect torque converter.
• Inspect valve body.
• Inspect wiring and connectors.
• Service CVT cooler and lines.
• Inspect accessible seals.
• Properly seat torque converter.
• Fill with correct Subaru CVTF.
• Fill front differential with correct gear oil.
• Set CVTF level at proper temperature.
• Verify front differential fluid level.
• Verify front axles.
• Verify driveshaft.
• Verify rear differential.
• Check all four tires.
• Complete TCM/CVT relearn.
• Confirm Park.
• Confirm Reverse.
• Confirm Drive.
• Scan for warning codes.
• Inspect for leaks.

INITIAL ROAD TEST

Begin with a gentle road test.

Monitor:

• Reverse engagement
• Drive engagement
• Initial takeoff
• CVT ratio changes
• Engine RPM behavior
• Torque-converter operation
• Shudder
• Slipping
• Hesitation
• Whining
• AWD operation
• Driveline binding
• Transmission temperature
• Warning lights
• Fluid leaks

Avoid aggressive acceleration until correct CVT and AWD operation have been confirmed.

COMMON SIGNS OF SUBARU TR580 CVT PROBLEMS

A failing TR580 may produce:

• Delayed Drive engagement
• Delayed Reverse engagement
• Shudder
• Slipping
• Hesitation
• RPM flare
• Whining
• Overheating
• Jerking
• Abnormal ratio behavior
• Warning lights
• Limp mode
• CVT fluid leaks
• Diagnostic trouble codes

Similar symptoms can also result from:

• Valve-body faults
• Solenoid problems
• Pressure-control faults
• Sensor failures
• TCM calibration
• Incorrect CVT fluid
• Low fluid
• Cooler restrictions
• Mismatched rear differential
• Mismatched tires
• Axle or driveshaft issues

WHY CHOOSE THIS JDM TR580DHMAA TRANSMISSION?

This JDM TR580DHMAA provides an OEM Subaru replacement option for compatible Forester 2.5L CVT models with a slipping, shuddering, damaged, or failed transmission.

Key features include:

• Genuine Subaru JDM transmission
• Full TR580DHMAA code
• FB25 2.5L application
• Lineartronic CVT
• AWD drivetrain
• 3.70 final drive
• Low-mileage Japanese import
• Actual inventory photos
• Individual Item ID
• 90-day limited warranty
• Nationwide freight shipping
• 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 product photography
• Full transmission-code identification
• Individual inventory tracking
• Subaru drivetrain experience
• Nationwide freight shipping
• Local Richmond / Henrico pickup
• Installation options
• Limited warranty coverage

INDIVIDUAL INVENTORY INFORMATION

Vehicle: Subaru Forester
Recommended USDM Application: 2014–2016
Engine: FB25 2.5L
Transmission Code: TR580DHMAA
Transmission Family: TR580 Lineartronic
Type: CVT Automatic
Drivetrain: AWD
Final Drive: 3.70
Rear Differential: Matching 3.70 Required
CVT Fluid: Verify Subaru OEM specification by VIN/code
Front Differential Fluid: GL-5 75W-90
Item ID: 53970
SKU: MT625 TR580DHMAA
Condition: Used JDM / Low Mileage
Warranty: 90 Days

90-DAY LIMITED WARRANTY

The live page currently shows a:

90-Day Warranty.

Keep documentation for:

• Correct Subaru CVTF
• Front differential gear oil
• CVT cooler service
• Cooler-line service
• Seal replacement
• Torque-converter installation
• TCM/CVT relearn
• Rear differential ratio verification
• Professional installation

FREQUENTLY ASKED QUESTIONS

What is the full transmission code?

The full code is TR580DHMAA.

Is TR580DHMAA the same as TR580?

TR580 is the transmission family. TR580DHMAA is the complete model/code for this specific variant.

What is the final-drive ratio?

The live product page lists 3.70.

Do I need a matching rear differential?

Yes. The AWD drivetrain should use the correct matching 3.70 rear differential.

What engine is this transmission used with?

It targets compatible FB25 2.5L naturally aspirated applications.

Is it AWD?

Yes.

Is this a CVT?

Yes. This is a Subaru Lineartronic continuously variable transmission.

Does it have conventional gears?

No. The TR580 is a CVT rather than a conventional 4-, 5-, or 6-speed automatic.

Will it fit a U.S. 2011 Subaru Forester?

Not as a direct original-type replacement. U.S.-market 2011 Foresters used a 4-speed automatic or manual transmission, not this TR580 CVT.

Will it fit a U.S. 2012 Subaru Forester?

Do not advertise direct fit. The U.S. 2012 Forester remained on the earlier automatic/manual drivetrain, not the later Forester CVT configuration.

Will it fit a U.S. 2013 Subaru Forester?

Do not advertise direct fit. U.S. 2013 Foresters used a 4-speed automatic or 5-speed manual.

What U.S. Forester years should this page target?

The strongest replacement target is 2014–2016 Forester 2.5L CVT, subject to full transmission-code and drivetrain verification. J-Spec already uses this application on another TR580DHMAA page.

Is TR580DHMAA the same as TR580DHNAA?

No. They are related TR580 variants but have different complete codes. Verify interchange before substitution.

What CVT fluid should be used?

Use only the Subaru-specified CVT fluid for the exact VIN and transmission application.

Does fluid level need to be set by temperature?

Yes. TR580 service information requires CVTF temperature to be monitored, with a typical level-setting range of 35–45°C / 95–113°F.

Does the front differential use CVT fluid?

No. The front differential uses separate gear oil.

What front differential oil should be used?

Use the Subaru OEM-specified gear oil, commonly 75W-90 GL-5 for this drivetrain family.

Should the cooler lines be serviced?

Yes. Inspect and properly flush/service the cooler circuit before installing a replacement CVT.

Can old CVT fluid be reused?

No.

Does the torque converter need to be seated correctly?

Yes. Improper torque-converter seating can damage the transmission pump.

Does the transmission require programming or relearn?

It may require TCM reset, CVT learning, calibration, and adaptive procedures after installation.

Are the photos of the actual transmission?

The page should use the actual inventory photos of Item ID 53970 and include a close-up of the TR580DHMAA identification.

Does it have a warranty?

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

ORDER YOUR JDM SUBARU FORESTER TR580DHMAA CVT

Replace your failed CVT with this low-mileage JDM Subaru TR580DHMAA FB25 2.5L AWD Lineartronic transmission with 3.70 final drive.

This genuine Subaru JDM transmission is best marketed toward compatible 2014–2016 U.S.-market Subaru Forester 2.5L CVT applications, after complete code and drivetrain verification.

Vehicle: Subaru Forester
Recommended USDM Years: 2014–2016
Engine: FB25 2.5L
Transmission Code: TR580DHMAA
Transmission: Lineartronic CVT
Drivetrain: AWD
Final Drive: 3.70
Rear Differential: Matching 3.70 Required
Item ID: 53970
SKU: MT625 TR580DHMAA
Warranty: 90 Days

Verify the VIN, original transmission code, final drive, rear differential ratio, electrical connectors, valve body, torque converter, sensors, TCM calibration, cooler system, mounts, and complete physical configuration before ordering.