JDM 2003–2006 NISSAN 350Z / INFINITI G35 VQ35DE 3.5L 5-SPEED AUTOMATIC RWD TRANSMISSION

Replace your worn or failed Nissan or Infiniti automatic transmission with this low-mileage JDM 5-speed automatic RWD transmission from J-Spec Auto Sports.

This genuine used OEM JDM transmission targets compatible 2003–2006 Nissan 350Z and Infiniti G35 applications equipped with the VQ35DE 3.5L V6 and rear-wheel drive.

The relevant transmission family for this application is:

RE5R05A

For strong technical identification and SEO, the product relationship should be:

Nissan 350Z / Infiniti G35 → 2003–2006 → VQ35DE 3.5L V6 → RE5R05A Family → 5-Speed Automatic → RWD

The individual inventory unit offered on this page carries:

Serial Number: 4Y54136

Item ID: 56440

Because Nissan used application-specific revisions, connector configurations, calibrations, and external components, verify the exact physical transmission before installation.

QUICK DETAILS

• Manufacturer: Nissan / Jatco
• Primary Vehicles: Nissan 350Z / Infiniti G35
• Target Years: 2003–2006
• Engine Code: VQ35DE
• Engine Size: 3.5L
• Engine Configuration: V6
• Transmission Family: RE5R05A
• Related Jatco Family: JR507E
• Exact Physical Product Code: Verify from Item 56440
• Serial Number: 4Y54136
• Transmission Type: 5-Speed Automatic
• Gears: 5
• Drivetrain: Rear-Wheel Drive / RWD
• Condition: Used OEM JDM / Low Mileage
• Origin: Japan
• Item ID: 56440
• SKU: MT831-1
• Actual Product Photos: Yes
• Nationwide Freight Shipping: Available
• Affordable Installation: Available

RE5R05A TRANSMISSION FAMILY

The automatic transmission associated with the VQ35DE-powered 350Z and G35 RWD application is the:

RE5R05A

5-speed automatic transmission family.

RE5R05A is an important search term because customers, repair shops, recyclers, and transmission specialists frequently search by transmission designation rather than only by vehicle model.

Recommended search entity:

RE5R05A → Nissan 350Z / Infiniti G35 → VQ35DE → 3.5L → 5-Speed Automatic → RWD

However, the current Item 56440 product data does not show a physical RE5R05A code.

Therefore, do not fabricate an exact Product Code.

Use:

Transmission Family / Application: RE5R05A

until the actual physical identification on Item 56440 is confirmed.

RE5R05A / JR507E IDENTIFICATION

The RE5R05A belongs to the Jatco 5-speed automatic transmission family also associated with the:

JR507E

designation.

For customer-facing SEO, prioritize:

RE5R05A

because that is the stronger Nissan/Infiniti replacement-transmission search term.

Use JR507E naturally as a related technical search term rather than replacing RE5R05A in the primary title.

VQ35DE 3.5L V6 APPLICATION

This transmission targets compatible applications using Nissan’s:

VQ35DE 3.5L DOHC V6

The VQ35DE was widely used in Nissan and Infiniti vehicles, but engine compatibility alone does not establish transmission interchange.

Do not assume that every VQ35DE transmission is identical.

The proper fitment relationship is:

VQ35DE + RE5R05A-family + 5-Speed Automatic + RWD + Correct Vehicle Configuration

5-SPEED AUTOMATIC

This transmission application is a conventional:

5-Speed Automatic

It is not:

• CVT
• 6-Speed Automatic
• 6-Speed Manual

Recommended WooCommerce fields:

Type: 5-Speed Automatic

Gears: 5

Drivetrain: RWD

This is substantially better than the current generic:

Type: Automatic

REAR-WHEEL DRIVE / RWD

This listing targets:

Rear-Wheel Drive / RWD

applications.

That distinction is especially important for the Infiniti G35 because AWD versions also existed.

Therefore:

G35 RWD ≠ G35 AWD

Do not advertise this RWD transmission as a replacement for an AWD G35 unless a specific conversion is being performed and all required drivetrain changes have been independently verified.

2003 NISSAN 350Z AUTOMATIC

This transmission targets compatible:

2003 Nissan 350Z VQ35DE 3.5L RWD 5-speed automatic

applications after complete fitment verification.

Compare the original transmission before ordering.

2004 NISSAN 350Z AUTOMATIC

Item 56440 targets compatible:

2004 Nissan 350Z VQ35DE automatic RWD

applications when the transmission configuration matches.

Verify the original connectors, sensors, torque converter, mounts, and physical transmission configuration.

2005 NISSAN 350Z AUTOMATIC

This transmission can target compatible:

2005 Nissan 350Z VQ35DE 3.5L automatic RWD

applications after complete transmission verification.

Pay particular attention to production date and transmission configuration.

2006 NISSAN 350Z AUTOMATIC

For a 2006 Nissan 350Z, verify:

• VQ35DE engine application
• Automatic transmission
• RWD drivetrain
• Original transmission identification
• Production date
• Electrical connector configuration
• Sensors
• Solenoids
• Valve body
• Torque converter
• Driveshaft interface
• Mounting configuration

before ordering.

INFINITI G35 APPLICATION

This transmission also targets compatible:

Infiniti G35 VQ35DE 3.5L RWD automatic

applications within the applicable production range.

Depending on year and body style, verify:

• Sedan vs Coupe
• RWD vs AWD
• VQ35DE configuration
• Production date
• Transmission identification
• Electrical connectors
• Valve body
• Sensors
• Solenoids
• Torque converter
• Driveshaft
• Mounts

before installation.

G35 COUPE VS. G35 SEDAN

Do not assume that every G35 Coupe and Sedan transmission configuration is identical simply because both use the VQ35DE engine.

Before ordering Item 56440, compare the customer’s original transmission with the actual product photographs.

Check:

• Bellhousing
• Case
• Electrical connectors
• Sensors
• Solenoids
• Valve body
• Range switch
• Cooler fittings
• Mounting points
• Output / driveshaft interface
• Torque converter

Exact configuration verification is more reliable than engine displacement alone.

NOT FOR G35 AWD

This listing targets:

G35 RWD

applications.

Do not advertise Item 56440 as a replacement transmission for:

Infiniti G35 AWD / G35x

without separately verifying the entire drivetrain configuration.

RWD and AWD transmission assemblies differ in drivetrain layout.

Add:

Not for G35 AWD / G35x

to the FAQ and fitment notice.

NOT A MANUAL TRANSMISSION

This listing is for a:

5-Speed Automatic RWD Transmission

It is completely different from the Nissan:

FS6R31A / CD-series 6-speed manual transmission

used in manual 350Z and G35 applications.

Do not combine automatic and manual transmission keywords on the same product page.

2007+ 350Z FITMENT WARNING

Do not automatically extend this listing into later 350Z applications.

The 350Z powertrain changed during the model run, including the move to the later VQ35HR engine.

Therefore, keep this particular product tightly focused on its verified:

2003–2006 VQ35DE

target unless later interchange is separately confirmed.

A narrower, accurate product page is better than an artificially broad fitment claim.

PHYSICAL CONNECTOR CONFIGURATION IS IMPORTANT

Early Nissan/Infiniti JDM automatic transmissions can have different electrical configurations.

The actual photographs of Item 56440 should clearly document:

• Main electrical connector
• Connector count
• Pin configuration
• Harness routing
• Sensors
• Solenoids
• Range switch

Do not sell a transmission solely by RE5R05A family name.

The customer or installer should compare the actual Item 56440 transmission with the original unit.

VALVE BODY AND TCM COMPATIBILITY

Electronic control is critical on the RE5R05A-family transmission.

Before installation, compare:

• Valve body
• Solenoid configuration
• Internal harness
• External connectors
• Sensors
• TCM configuration
• Original transmission electronics

Depending on the exact JDM and USDM configurations, compatible original electronic components may need to be retained or transferred.

Do not promise a universal plug-and-play electronic interchange.

DO NOT AUTOMATICALLY PROMISE TCM TRANSFER

The current live description says:

“Simply reuse your original torque converter, transmission control module (TCM), and mounts for a seamless install.”

Remove that statement.

It is too absolute.

The correct wording is:

Compare the original and JDM transmission configurations before installation. Depending on the application, compatible original sensors, solenoids, valve-body/electronic components, brackets, mounts, or other external components may need to be retained or transferred.

This is technically safer and avoids promising a “seamless” installation.

TORQUE CONVERTER

The live page currently tells customers to reuse the original torque converter.

Do not make that a universal requirement without verifying Item 56440.

Instead:

Verify whether the torque converter is included with Item 56440 and verify the correct converter configuration for the target vehicle.

If the JDM torque converter is included, compare:

• Converter hub
• Splines
• Pilot
• Mounting points
• Overall dimensions
• Application

If the original converter is reused, inspect it carefully before installation.

Do not reuse a contaminated or failed torque converter simply because it came from the original transmission.

TORQUE CONVERTER INSTALLATION

Before mating the transmission to the engine, make sure the torque converter is fully seated inside the transmission.

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

Improper torque-converter seating can damage:

• Front pump
• Converter
• Transmission case

and may cause immediate transmission failure.

TRANSMISSION FLUID

Use the correct Nissan automatic transmission fluid specification for the exact vehicle, production date, and transmission configuration.

For this generation, Nissan service information may reference Nissan Matic-series ATF specifications depending on application and production date.

Therefore, verify the correct fluid by:

• VIN
• Model year
• Production date
• Transmission identification
• Nissan service information

before filling Item 56440.

Do not use:

• CVT fluid
• Manual transmission fluid
• Differential gear oil
• Unverified universal ATF

NOT A CVT

The 2003–2006 350Z/G35 RWD transmission targeted here is a conventional:

5-Speed Automatic

It is not a CVT.

Do not use Nissan CVT fluid.

FLUSH THE TRANSMISSION COOLER AND LINES

Before operating the replacement transmission, thoroughly clean the transmission cooling circuit.

A failed automatic transmission can leave:

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

inside the cooler and cooler lines.

Connecting Item 56440 to a contaminated cooling system can introduce debris into the replacement transmission immediately.

Before startup:

• Flush the transmission cooler.
• Flush the cooler lines.
• Confirm unrestricted flow.
• Remove contaminated ATF.
• Replace any cooler that cannot be properly cleaned.

DO NOT REUSE CONTAMINATED ATF

Always fill the replacement transmission with fresh, correct-specification ATF.

Never reuse fluid removed from the failed transmission.

INSPECT ACCESSIBLE SEALS

While the transmission is outside the vehicle, inspect:

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

Replace questionable accessible seals before installation.

KEEP THE ORIGINAL TRANSMISSION

Do not discard the original transmission until Item 56440 has been:

• Physically compared
• Installed
• Filled
• Checked for leaks
• Road-tested
• Scanned
• Verified for correct operation

The original transmission may provide compatible:

• Sensors
• Solenoids
• Electronic components
• Brackets
• Mounts
• Wiring
• Cooler fittings
• External hardware

DO NOT COMPRESSION TEST A TRANSMISSION

The current product page says:

“Every transmission sold by J-Spec Auto undergoes a compression and operational test.”

It also says:

“Fully Compression and Function Tested.”

Remove both references to transmission compression testing.

Compression testing applies to engines, not automatic transmissions.

For transmissions, only advertise inspection or testing procedures that were actually performed on the individual unit.

Examples may include:

• Visual inspection
• Fluid inspection
• Connector inspection
• Case inspection
• Pan inspection
• Operational testing if actually performed

Do not convert an engine-testing claim into transmission marketing language.

INSTALLATION CHECKLIST

Before installation:

• Confirm Nissan 350Z or Infiniti G35.
• Confirm target model year.
• Confirm VQ35DE 3.5L.
• Confirm automatic transmission.
• Confirm RWD drivetrain.
• Verify original transmission identification.
• Verify RE5R05A-family application.
• Verify Item 56440 physical identification.
• Compare electrical connectors.
• Compare connector count.
• Compare sensors.
• Compare solenoids.
• Compare valve body.
• Compare internal/external wiring.
• Compare bellhousing.
• Compare torque converter.
• Compare transmission mounts.
• Compare output / driveshaft interface.
• Compare cooler fittings.
• Inspect accessible seals.
• Flush transmission cooler.
• Flush cooler lines.
• Fill with the correct Nissan-specified ATF.
• Check for leaks.
• Scan the vehicle for transmission DTCs.

INITIAL STARTUP

After installation:

• Fill the transmission using the correct service procedure.
• Start the engine.
• Allow ATF to circulate.
• Slowly move the selector through each range.
• Confirm Reverse.
• Confirm Drive.
• Listen for abnormal noise.
• Inspect cooler connections.
• Check transmission seals.
• Look for leaks.
• Verify ATF level.
• Scan the vehicle for diagnostic trouble codes.

Avoid aggressive acceleration during initial testing.

HEAT CYCLES AND FLUID RECHECK

Run several controlled heat cycles after installation.

During each cycle:

• Bring the transmission toward normal operating temperature.
• Recheck fluid level using the proper procedure.
• Inspect cooler connections.
• Check seals.
• Confirm Reverse engagement.
• Confirm Drive engagement.
• Check for leaks.

The fluid level should remain stable before extended road testing.

INITIAL ROAD TEST

Begin with light throttle.

Monitor:

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

After the road test:

• Recheck ATF.
• Inspect for leaks.
• Scan for stored and pending DTCs.

TCM / TRANSMISSION LEARNING

Depending on the exact vehicle, transmission configuration, valve body, and electronic components used, transmission initialization or learning procedures may be required.

After installation:

• Clear relevant transmission DTCs.
• Confirm ECM/TCM communication.
• Perform applicable initialization or learning procedures.
• Complete a controlled road test.
• Rescan the vehicle.

Use a Nissan/Infiniti-capable scan tool when required.

COMMON RE5R05A TRANSMISSION FAILURE SYMPTOMS

Possible symptoms of a worn or failed automatic transmission include:

• Delayed Drive engagement
• Delayed Reverse engagement
• Slipping
• Harsh shifting
• RPM flare
• Shudder
• Failure to upshift
• Abnormal transmission noise
• Torque-converter problems
• Burnt ATF
• Transmission warning lights
• Diagnostic trouble codes
• Failure to move

However, similar symptoms can also result from:

• Valve-body faults
• Solenoid problems
• Sensor failures
• Wiring faults
• TCM issues
• Low ATF
• Incorrect ATF
• Torque-converter problems
• Cooler restriction
• Engine-related faults
• Worn drivetrain mounts

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

WHY THE COMPLETE APPLICATION MATTERS

This search term is too broad:

VQ35 transmission

A much stronger product identity is:

2003–2006 Nissan 350Z / Infiniti G35 → VQ35DE 3.5L V6 → RE5R05A Family → 5-Speed Automatic → RWD

That entity gives:

• Customers clearer fitment information
• Repair shops better technical identification
• Google stronger product context
• Bing stronger keyword relevance
• AI/LLM systems clearer entity relationships
• J-Spec stronger topical authority
• Better long-tail search coverage

WHY BUY ITEM 56440?

Item 56440 provides a genuine used OEM JDM automatic transmission option for properly verified VQ35DE RWD applications.

Key product characteristics include:

• Genuine used OEM JDM transmission
• Nissan/Infiniti application
• VQ35DE 3.5L V6 compatibility
• RE5R05A-family application
• 5-speed automatic
• RWD configuration
• Serial 4Y54136
• Individual Item ID 56440
• Actual inventory 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 inventory tracking
• Engine and transmission identification
• Nissan/Infiniti drivetrain experience
• Fitment assistance
• Nationwide freight shipping
• Local pickup
• Affordable installation options
• Limited warranty coverage where applicable

Most importantly, proper fitment verification helps reduce costly installation mistakes.

INDIVIDUAL INVENTORY INFORMATION

Make: Nissan / Infiniti

Models: Nissan 350Z / Infiniti G35

Target Years: 2003–2006

Engine Code: VQ35DE

Engine Size: 3.5L

Engine Configuration: V6

Transmission Family: RE5R05A

Related Jatco Designation: JR507E

Exact Physical Transmission Code: Verify before publishing as an absolute field

Serial Number: 4Y54136

Transmission Type: 5-Speed Automatic

Gears: 5

Drivetrain: RWD

Fluid: Verify correct Nissan Matic-series ATF specification by VIN, production date, and transmission

Torque Converter: Verify Included / Not Included

Item ID: 56440

SKU: MT831-1

Condition: Used OEM JDM / Low Mileage

Warranty: Verify current backend warranty field before hard-coding

LIMITED WARRANTY

Item 56440 is sold subject to J-Spec Auto Sports’ current limited warranty terms and installation requirements.

Before publishing a specific warranty duration in the permanent SEO copy, confirm the current WooCommerce warranty field.

Keep installation documentation showing:

• Correct ATF
• Cooler flushing
• Cooler-line flushing
• Accessible seal inspection
• Correct torque-converter installation
• Required component transfers
• Diagnostic procedures
• Professional installation

FREQUENTLY ASKED QUESTIONS

What transmission is used in the 2003–2006 Nissan 350Z automatic?

Compatible VQ35DE RWD applications use Nissan’s RE5R05A-family 5-speed automatic transmission.

Verify the exact physical transmission identification and production configuration before ordering.

What transmission is Item 56440?

Item 56440 is a JDM 5-speed automatic RWD transmission targeting compatible 2003–2006 Nissan 350Z and Infiniti G35 VQ35DE applications.

Its serial number is:

4Y54136

Is this an RE5R05A transmission?

The 2003–2006 VQ35DE RWD 350Z/G35 automatic application belongs to the RE5R05A family.

However, verify the physical identification on Item 56440 before entering RE5R05A as the exact stamped Product Code.

Is RE5R05A the same as JR507E?

JR507E is a related Jatco designation associated with this 5-speed automatic transmission family.

For Nissan/Infiniti customer-facing SEO, prioritize RE5R05A.

How many speeds does this transmission have?

It is a:

5-speed automatic transmission

Is this transmission RWD?

Yes.

This listing targets compatible:

Rear-Wheel Drive / RWD

applications.

Will it fit a 2003 Nissan 350Z?

It targets compatible 2003 350Z VQ35DE 3.5L automatic RWD applications after complete transmission verification.

Will it fit a 2004 Nissan 350Z?

It targets compatible 2004 VQ35DE RWD automatic applications when the physical configuration matches.

Will it fit a 2005 Nissan 350Z?

It targets compatible 2005 350Z VQ35DE automatic applications after production-date and transmission-configuration verification.

Will it fit a 2006 Nissan 350Z?

It may fit compatible 2006 VQ35DE RWD automatic applications after complete transmission verification.

Will it fit an Infiniti G35?

It targets compatible 2003–2006 Infiniti G35 VQ35DE RWD automatic applications.

Verify Coupe/Sedan, production date, transmission configuration, electronics, and drivetrain before ordering.

Will it fit a G35x AWD?

Do not use this RWD listing as an AWD G35x replacement without a separately verified drivetrain conversion.

Will it fit a manual 350Z?

No.

This is an automatic transmission.

Is this a CD009?

No.

CD009 refers to a revision of Nissan’s 6-speed manual transmission family.

This listing is for a 5-speed automatic.

Is this a CVT?

No.

The RE5R05A-family transmission is a conventional 5-speed automatic.

What engine does it work with?

This listing targets compatible:

VQ35DE 3.5L V6

applications.

Does the torque converter come with it?

Verify the actual Item 56440 photographs and physical inventory before advertising torque-converter inclusion.

Should I reuse my old torque converter?

Do not automatically reuse a torque converter from a failed transmission.

Inspect and verify the correct converter configuration before installation.

Should I flush the transmission cooler?

Yes.

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

Does the transmission need programming?

Depending on the electronic components and target vehicle, applicable TCM initialization, reset, or learning procedures may be required.

Should I keep my original transmission?

Yes.

Keep it until Item 56440 has been successfully installed and road-tested.

Is this transmission compression tested?

No transmission should be described as compression tested.

Compression testing applies to engines.

Is this transmission rebuilt?

No.

Unless specifically stated otherwise, this is a:

Used OEM JDM automatic transmission imported from Japan

ORDER ITEM 56440 – NISSAN 350Z / INFINITI G35 AUTOMATIC TRANSMISSION

Replace your worn or failed transmission with this low-mileage JDM 5-speed automatic RWD transmission for properly verified 2003–2006 Nissan 350Z and Infiniti G35 VQ35DE 3.5L applications.

Vehicles: Nissan 350Z / Infiniti G35
Years: 2003–2006
Engine: VQ35DE 3.5L V6
Transmission Family: RE5R05A
Transmission: 5-Speed Automatic
Drivetrain: RWD
Serial: 4Y54136
Item ID: 56440
SKU: MT831-1

Before ordering, verify the VIN, production date, original transmission identification, RWD configuration, electrical connectors, valve body, sensors, solenoids, torque converter, mounts, driveshaft interface, cooler fittings, and complete physical configuration.

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