Lexus GS450h Transmission for Sale | Used Hybrid eCVT Transaxle
$990.00
At a Glance
- Condition: OEM used, motor generator function tested, power split device operation verified, high-voltage connector integrity inspected
- Availability: In stock for GS450h applications
- Shipping: Free shipping to all 50 states, 5 to 10 business days on hybrid transmission assemblies
- Application: Lexus GS450h – the hybrid variant of the Lexus GS mid-size premium sedan
- Hybrid eCVT transaxle: continuously variable transmission with integrated electric motor generators – characteristic Toyota / Lexus Hybrid Synergy Drive transmission architecture
- Toyota / Lexus Hybrid Synergy Drive (HSD) family: shares underlying HSD technology with the Toyota Prius (see our related Prius tailgate listing) and various Toyota / Lexus hybrid vehicles
- GS450h positioned as the premium hybrid variant of the Lexus GS sedan
- Configuration critical: Different GS450h generations (S190 2007-2011, L10 2012-2020) use different eCVT transaxle configurations – verify generation before ordering
- High-voltage safety: Hybrid transmission service involves high-voltage system considerations – qualified hybrid service personnel required
- 15 day replacement warranty on component defects
Description
About the Lexus GS450h Transmission
Need a replacement Lexus GS450h hybrid eCVT transaxle? Part Nests sources OEM used hybrid eCVT transaxles for Lexus GS450h applications. The Lexus GS450h is the hybrid variant of the Lexus GS mid-size premium sedan, using Toyota / Lexus Hybrid Synergy Drive (HSD) technology. Related to the Toyota Prius (see our related Prius tailgate listing) as part of the same HSD family. Each transaxle is inspected for motor generator function, power split device operation, and high-voltage connector integrity. High-voltage safety considerations apply – qualified hybrid service personnel required for installation. Call (855) 634-4447 to verify GS450h generation and configuration before ordering.
What Is Included and Not Included
| Detail | Description |
|---|---|
| INCLUDED | The hybrid eCVT transaxle unit as removed from the donor. Exact included scope (sensors, fittings) confirmed with photos before you pay. |
| NOT INCLUDED | High voltage battery, inverter, driveshaft, mounts unless attached, cooling line gaskets, and fluids. Plan a cooling line gasket and fresh fluid at installation. |
| Tools You Need | Transmission jack, standard metric tools, torque wrench, insulated gloves and HV safety equipment, and a hybrid capable scan tool for calibration or reset after installation. |
Lexus GS450h Vehicle Context
- Premium hybrid mid-size sedan: The Lexus GS450h is the hybrid variant of the Lexus GS mid-size premium sedan. Represents Lexus’ premium hybrid positioning in the mid-size premium sedan segment. Combined performance and fuel efficiency benefits from the Hybrid Synergy Drive technology
- GS450h production generations: S190 chassis (2007-2011) and L10 chassis (2012-2020). Different eCVT transaxle configurations across the two generations – verify generation before ordering. L10 generation extended Lexus GS450h availability to nine additional model years
- Lexus GS discontinuation: The Lexus GS nameplate was discontinued after the 2020 model year (L10 chassis final production). Lexus consolidated its mid-size premium sedan positioning around the ES (below GS) and LS (above GS). Reflects broader industry shift from mid-size premium sedan segment
- Related GS variants: GS300, GS350, GS400 (see our related GS400 steering column listing), GS430 (see our related GS430 engine listing), GS460, GS450h (this application), and GS-F. Multiple engine and hybrid variants across the GS generations
Toyota / Lexus Hybrid Synergy Drive Context
- HSD technology family: The Lexus GS450h uses Toyota / Lexus Hybrid Synergy Drive (HSD) technology. Same underlying HSD architecture that originated with the Toyota Prius (see our related Prius tailgate listing) and expanded across the Toyota / Lexus hybrid vehicle lineup. Represents one of the most widely deployed hybrid vehicle technology families
- eCVT transaxle architecture: The eCVT (electronically controlled continuously variable transmission) is a distinctive Toyota / Lexus hybrid transmission architecture. Combines a planetary gearset (power split device) with two electric motor generators (MG1 and MG2). Enables seamless power blending between the gasoline engine and electric motors. Different from traditional CVT (which uses variable-diameter pulleys and steel belt)
- Power split device: The eCVT power split device (planetary gearset) is central to HSD operation. Splits engine power between mechanical drive to the wheels and electrical drive through the motor generators. Enables continuous variable ratio operation without traditional stepped gears or variable pulleys
- Motor generators (MG1 and MG2): Two electric motor generators integrated with the eCVT. MG1 primarily functions as generator to convert engine power to electrical power for battery charging or MG2 drive. MG2 primarily functions as electric drive motor providing wheel torque. Both can also function in reverse roles depending on driving conditions
- Premium HSD applications: The GS450h HSD implementation represents the premium mid-size sedan application of HSD technology. Different from the Prius HSD focus on fuel economy – the GS450h HSD emphasizes both performance and fuel economy in the premium sedan format
eCVT Transaxle Specifications
- Type: OEM used hybrid eCVT transaxle for Lexus GS450h (generation-specific)
- Function: Continuously variable transmission with integrated electric motor generators. Provides seamless power blending between gasoline engine and electric motors while adjusting gear ratio continuously. Includes power split device (planetary gearset), MG1 generator motor, MG2 drive motor, high-voltage electrical connections, and gearbox output for drive shaft integration
- Construction: Sealed transaxle housing containing planetary gearset, motor generators (MG1 and MG2), gearbox output shaft, high-voltage electrical connector for battery pack integration, control electronics interfaces, and mounting hardware for engine bay attachment
- Common failure modes: Motor generator failure (drive motor MG2 failure or generator motor MG1 failure), power split device wear (audible planetary gearset noise), high-voltage connector failure, coolant leak from integrated cooling passages (some eCVT designs use coolant cooling for motor generators). Symptoms include hybrid system warning lights, reduced performance, audible drive system noise, and error messages about hybrid drive system
- Safety note: Hybrid transaxle service involves high-voltage system considerations. Service should be performed by qualified hybrid service personnel with appropriate safety training and equipment. High-voltage systems (typically 200V+ in HSD applications) can cause serious injury if handled improperly. Not appropriate for typical DIY installation without proper hybrid training
- Testing: Motor generator function tested, power split device operation verified, high-voltage connector integrity inspected before shipment
Vehicle Compatibility
| Detail | Description |
|---|---|
| Lexus GS450h (S190) | 2007 to 2011, first generation hybrid transaxle |
| Lexus GS450h (L10) | 2012 onward, second generation, different transaxle, no interchange with S190 |
| Donor Reference | This listing’s compatibility tag references a 2012 GS450h; donor year and part number confirmed at order |
| Other Lexus Hybrids | LS600h and RX450h use different transaxles; not covered by this listing |
Related Lexus Listings
- Lexus GS430: V8 variant of the Lexus GS – see our GS430 engine listing
- Lexus GS400: Earlier V8 variant of the Lexus GS – see our GS400 steering column listing
Why Buy From Part Nests
- OEM verified hybrid eCVT transaxle for Lexus GS450h applications
- Motor generator function tested, power split device operation verified, high-voltage connector integrity inspected
- Support for Lexus’ premium hybrid variant of the mid-size premium sedan
- Free shipping to all 50 states
- 15 day replacement warranty on component defects
- Support team familiar with Toyota / Lexus Hybrid Synergy Drive technology and GS450h generation-specific configuration matching
- Call (855) 634-4447 to confirm your GS450h generation and configuration before ordering.
15 Day Replacement Warranty
Every used Lexus GS450h Transmission carries a 15 day replacement warranty starting on the delivery date. Hybrid transaxle service involves high-voltage system considerations - qualified hybrid service personnel required. Generation matching (S190 vs L10) is critical before ordering. Call (855) 634-4447 to start a warranty claim within 15 days of delivery.
What Is Covered
- Component defects present on arrival beyond what was disclosed
- Motor generator or power split device failures within 15 days from installation
- High-voltage connector failures not disclosed at sale
- Incorrect part shipped (wrong generation) due to an error on our end
What Is Not Covered
- Damage caused during installation
- High-voltage system damage from improper handling
- Cross-generation installation without verification
- Labor expenses of any kind, including high-voltage service labor
- Part: OEM used hybrid eCVT transaxle
- Application: Lexus GS450h (S190 2007-2011, L10 2012-2020)
- Technology: Toyota / Lexus Hybrid Synergy Drive (HSD)
- HSD Origin: Same family as Toyota Prius technology
- Architecture: Planetary power split device + MG1 generator + MG2 drive motor
- Segment: Lexus premium hybrid mid-size sedan
- High-Voltage Safety: Qualified hybrid service personnel required
- Related Listings: Lexus GS430 engine, GS400 steering column
Additional information
| Brand | Lexus |
|---|---|
| Type | Hybrid eCVT transaxle, planetary gearset with motor generator integration |
| Application | Lexus GS450h, generation matched (S190 2007 to 2011 or L10 2012 onward) |
| Hybrid Battery Context | 288 V Nickel-Metal Hydride (Ni-MH), vehicle side |
| Weight | 209 lbs |
| Post Install Requirement | Hybrid transmission calibration or reset with a compatible scan tool |
| SKU | vaz626 |
| Price | $990.00 |
An OEM used hybrid eCVT (electronically controlled continuously variable transmission) transaxle for Lexus GS450h applications. Sealed transaxle housing containing planetary gearset (power split device), motor generators (MG1 and MG2), gearbox output shaft, high-voltage electrical connector for battery pack integration, control electronics interfaces, and mounting hardware. Function is continuously variable transmission with integrated electric motor generators enabling seamless power blending between gasoline engine and electric motors.
The hybrid variant of the Lexus GS mid-size premium sedan. Uses Toyota / Lexus Hybrid Synergy Drive (HSD) technology. Represents Lexus' premium hybrid positioning in the mid-size premium sedan segment. Combined performance and fuel efficiency benefits from the HSD technology. Different from the mainstream fuel-economy-focused Prius HSD implementation (see our related Prius tailgate listing) - GS450h HSD emphasizes both performance and fuel economy in premium sedan format.
S190 chassis (2007-2011) and L10 chassis (2012-2020). Different eCVT transaxle configurations across the two generations - verify generation before ordering. L10 generation extended Lexus GS450h availability to nine additional model years. Different transaxle mounting, MG1/MG2 configurations, and control interfaces between generations - not cross-compatible without configuration matching.
Toyota / Lexus Hybrid Synergy Drive (HSD) is one of the most widely deployed hybrid vehicle technology families. Same underlying HSD architecture that originated with the Toyota Prius (see our related Prius tailgate listing) and expanded across the Toyota / Lexus hybrid vehicle lineup. Combines a planetary gearset (power split device) with two electric motor generators (MG1 and MG2). Enables seamless power blending between the gasoline engine and electric motors.
The eCVT (electronically controlled continuously variable transmission) is a distinctive Toyota / Lexus hybrid transmission architecture. Combines a planetary gearset (power split device) with two electric motor generators (MG1 and MG2). Enables seamless power blending between the gasoline engine and electric motors. Different from traditional CVT (which uses variable-diameter pulleys and steel belt) - eCVT uses electrical variation of motor speeds to achieve variable ratio operation.
Two electric motor generators integrated with the eCVT. MG1 primarily functions as generator to convert engine power to electrical power for battery charging or MG2 drive. MG2 primarily functions as electric drive motor providing wheel torque. Both can also function in reverse roles depending on driving conditions. Coordinated operation between MG1 and MG2 enables the seamless hybrid power blending characteristic of HSD.
Hybrid transaxle service involves high-voltage system considerations. Service should be performed by qualified hybrid service personnel with appropriate safety training and equipment. High-voltage systems (typically 200V+ in HSD applications) can cause serious injury if handled improperly. High-voltage safety training, insulated tools, and appropriate personal protective equipment are required. Not appropriate for typical DIY installation without proper hybrid training.
Motor generator failure (drive motor MG2 failure or generator motor MG1 failure). Power split device wear (audible planetary gearset noise). High-voltage connector failure. Coolant leak from integrated cooling passages (some eCVT designs use coolant cooling for motor generators). Symptoms include hybrid system warning lights, reduced performance, audible drive system noise, and error messages about hybrid drive system.
J. Hayashi –
Transaxle arrived in the described condition. Fitment on my L10 was as expected. One thing to note – the high-voltage connector had some minor scuffing that was not really visible in the photos, though it functioned fine after inspection. Would suggest more detailed photos of the HV connector area for future listings.
R. Osei –
Excellent experience from start to finish. My hybrid tech verified the motor generators and power split device before installation and everything checked out. Vehicle is back to normal operation, hybrid warning cleared, no diagnostic codes. Good packaging protected the high-voltage terminals well.