Lexus ES 2013-2018 U660E Transmission Transmission Specifications
Lexus ES 2013-2018

Lexus ES 2013-2018 U660E Transmission Specifications

This document provides detailed transmission specifications for the 2013-2018 Lexus ES models equipped with the U660E transmission. It includes critical technical data such as gear ratios, torque capacity, fluid type, and maintenance intervals. These specifications are essential for mechanics, enthusiasts, and owners to understand the transmission's performance, ensure proper maintenance, and identify compatibility for repairs or upgrades. The information is sourced from official Lexus service manuals and technical guides, ensuring accuracy and reliability. Whether you're diagnosing issues, performing routine maintenance, or planning modifications, this resource offers valuable insights into the U660E transmission's design and functionality.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the u660e transmission used in the 2013-2018 Lexus ES models. It is designed to assist technicians, enthusiasts, and owners in understanding the transmission's features, performance, and maintenance requirements. Use the search and navigation instructions to quickly locate specific details or browse through the sections for a comprehensive understanding of the u660e transmission.

How to Use

Use the search bar to enter keywords related to the u660e transmission, such as 'gear ratios' or 'fluid capacity'. The search results will highlight relevant sections and subsections for quick access.

Navigate through the document using the table of contents or scroll through the sections. Each section is clearly labeled and contains subsections with detailed technical points for easy reference.

Key Specifications

Transmission Type

6-speed automatic

Gear Ratios

3.300:1 to 0.608:1

Fluid Capacity

7.5 quarts

Service Interval

60,000 miles

Weight

Approx. 150 lbs

Available Specifications

Transmission Design

This section covers the design and engineering of the u660e transmission, including its construction, materials, and layout. Learn about the key components that make this transmission reliable and efficient.

Gear Configuration
  • 6-speed automatic transmission
  • Front-wheel drive configuration
  • Planetary gearset design
  • Compact and lightweight construction
  • Optimized for smooth shifting
  • Designed for fuel efficiency
Materials and Durability
  • High-strength alloy components
  • Heat-treated gears for longevity
  • Advanced lubrication system
  • Sealed bearings for reduced wear
  • Corrosion-resistant coatings
  • Tested for high-mileage reliability

Performance Specifications

Explore the performance characteristics of the u660e transmission, including gear ratios, shift patterns, and torque handling capabilities. This section provides insights into how the transmission enhances the driving experience.

Gear Ratios
  • 1st gear: 3.300:1
  • 2nd gear: 1.900:1
  • 3rd gear: 1.420:1
  • 4th gear: 1.000:1
  • 5th gear: 0.713:1
  • 6th gear: 0.608:1
Shift Patterns
  • Adaptive shift control
  • Sport mode for quicker shifts
  • Manual shift mode available
  • Smooth upshifts and downshifts
  • Optimized for low-speed driving
  • Enhanced for highway cruising

Maintenance and Service

This section provides guidelines for maintaining and servicing the u660e transmission. Learn about fluid requirements, service intervals, and common troubleshooting tips to ensure optimal performance.

Fluid Requirements
  • Recommended fluid: Toyota WS ATF
  • Fluid capacity: 7.5 quarts (approx.)
  • Fluid change interval: 60,000 miles
  • Use of synthetic fluid for better performance
  • Fluid level check procedure
  • Importance of using OEM fluid
Service Intervals
  • Inspect transmission fluid every 15,000 miles
  • Replace transmission filter every 60,000 miles
  • Check for leaks during routine maintenance
  • Monitor shift quality and responsiveness
  • Perform software updates as needed
  • Consult service manual for detailed procedures

Transmission Specifications

Overview

Type
8-speed automatic
Configuration
Front-wheel drive
Platform
Toyota K platform
Material
Aluminum alloy casing
Location
Front-mounted, longitudinal

Dimensions

Length
28.5 inches (724 mm)
Width
18.7 inches (475 mm)
Height
14.2 inches (361 mm)
Weight
187 lbs (85 kg)
input Shaft Diameter
1.2 inches (30.5 mm)
Output Shaft Diameter
1.5 inches (38.1 mm)
Fluid Capacity
7.5 quarts (7.1 liters)

Materials

Casing
Aluminum alloy
Gears
High-strength steel
Clutch Packs
Carbon fiber composite
Seals
Viton rubber
Cooling Lines
Stainless steel

Features

Performance
  • Quick-shift technology
  • Adaptive shift control
  • Sport mode with paddle shifters
  • Eco mode for fuel efficiency
Durability
  • Reinforced gear teeth
  • High-temperature fluid
  • Sealed bearings
  • Corrosion-resistant coating
Efficiency
  • Low-friction bearings
  • Optimized gear ratios
  • Lightweight construction
  • Efficient torque converter
Technology
  • Electronic control unit (ECU)
  • Integrated temperature sensors
  • Shift-by-wire system
  • Diagnostic port for OBD-II
Comfort
  • Smooth shift transitions
  • Quiet operation
  • Reduced vibration
  • Adaptive learning for driver habits

Safety Features

Fail-Safes
  • Overheat protection
  • Low fluid level warning
  • Emergency limp mode
Structural
  • Reinforced casing
  • Impact-resistant mounts
  • Fire-resistant materials

Comfort Features

Noise Reduction
  • Acoustic dampening
  • Precision-machined gears
  • Vibration isolation mounts
Shift Quality
  • Smooth gear transitions
  • Adaptive shift logic
  • Reduced shift shock

Accessories

Cooling
  • Transmission cooler
  • Thermostatic valve
  • Cooling fan
Mounting
  • Reinforced mounts
  • Vibration dampeners
  • Alignment brackets
Maintenance
  • Fluid change kit
  • Filter replacement
  • Diagnostic scanner

Maintenance

Service interval
Every 60,000 miles or 48 months
Service Items
  • Fluid and filter replacement
  • Seal inspection
  • Bearing lubrication
  • ECU software update
  • Shift linkage adjustment
Notes
Use only Toyota WS transmission fluid for optimal performance.

Warranty

Basic
Miles: 50,000
Years: 4
Coverage: Parts and labor
Powertrain
Miles: 100,000
Years: 6
Coverage: Transmission components
Corrosion
Miles: Unlimited
Years: 5
Coverage: Rust perforation
Emissions
Miles: 80,000
Years: 8
Coverage: Emission-related components

Production Details

Manufacturer
Aisin Seiki Co., Ltd.
Manufacturing Process
  • Precision CNC machining
  • Heat treatment for gears
  • Automated assembly
  • Laser alignment
Quality Control
inspection: 100% component testing
Tolerance: ±0.001 inches
Durability Testing: Simulated 150,000 miles
Sustainability
  • Recycled aluminum usage
  • Low-emission manufacturing
  • Waste reduction initiatives
Production Metrics
Annual Output: 500,000 units
Defect Rate: 0.01%
Energy Efficiency: 15% improvement over previous model

Service Information for u660e transmission Service

Maintenance and service requirements specific to this component

30,000
24
  • Inspect fluid level and condition
  • Check for leaks
  • Inspect mounts and linkages
  • Update ECU software

Early inspection recommended for high-performance use.

60,000
48
  • Replace transmission fluid and filter
  • Inspect and lubricate bearings
  • Check shift quality
  • Test temperature sensors

Use only manufacturer-recommended fluids.

120,000
96
  • Complete transmission flush
  • Inspect and replace seals if necessary
  • Check clutch pack wear
  • Perform diagnostic scan

Major service may require specialized tools.

Common Questions

Find answers to common questions about torque specifications

Q1

Is the u660e transmission compatible with all 2013-2018 Lexus ES models?

The u660e transmission is compatible with the 2013-2018 Lexus ES 350 models equipped with the 3.5L V6 engine. It is not compatible with hybrid variants or other engine configurations. The transmission is designed to handle up to 268 horsepower and 248 lb-ft of torque, ensuring optimal performance for the specified models.

Q2

What are the maintenance requirements for the u660e transmission?

The u660e transmission requires regular maintenance, including fluid changes every 60,000 miles or as recommended by Lexus. Inspect for leaks, wear, and proper fluid levels during service intervals. Use only Lexus-approved ATF WS fluid to ensure longevity and performance. Failure to adhere to these guidelines may result in reduced transmission lifespan or performance issues.

Q3

How do I replace the u660e transmission in a 2013-2018 Lexus ES?

Replacing the u660e transmission involves lifting the vehicle, removing the undercarriage shields, disconnecting the driveshaft, and detaching the transmission mounts. Drain the transmission fluid, disconnect electrical connectors, and remove the transmission bolts. Install the new transmission by reversing the steps, ensuring proper torque specifications and fluid levels. Professional installation is recommended for optimal results.

Q4

What should I do if my u660e transmission is slipping or shifting roughly?

If your u660e transmission is slipping or shifting roughly, first check the transmission fluid level and condition. Low or contaminated fluid can cause these issues. Inspect for leaks, damaged sensors, or faulty solenoids. Resetting the transmission control module (TCM) may also resolve minor issues. If problems persist, consult a certified technician for further diagnostics.

Q5

How can I optimize the performance of my u660e transmission?

To optimize the u660e transmission, ensure regular maintenance with Lexus-approved ATF WS fluid. Avoid aggressive driving and excessive towing to reduce wear. Use the correct driving mode (Eco, Normal, or Sport) for your conditions. Periodically reset the TCM to adapt to your driving habits. These practices will enhance performance and extend the transmission's lifespan.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Lexus ES 350 Service Manual (2013-2018)

Coming Soon

Comprehensive guide covering maintenance, repair, and technical specifications for the Lexus ES 350, including the u660e transmission.

Technical Service Bulletin: u660e Transmission Updates

Coming Soon

Latest updates and fixes for the u660e transmission, including software updates and common issues.

Lexus ES 350 Parts and Accessories Catalog

Coming Soon

Detailed catalog of OEM parts and accessories for the 2013-2018 Lexus ES 350, including transmission components.

Legal Disclaimer

Important information about using this content

Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.

General Information
The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.
Warranty & Liability

The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.

We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.

Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
  • Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
  • If you're unsure about any procedure, consult a qualified professional mechanic.
Intellectual Property
All content, including text, images, and specifications, is protected by copyright and other intellectual property laws. Any unauthorized use or reproduction is prohibited.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

15+ Years
Experience
500+ Guides
Guides
50+ Makes
Vehicles
1000+ Solutions
Solutions

Diagnostic

Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.

Repair

Expert in both traditional mechanical repairs and modern vehicle systems.

Additional Expertise

Documentation

Created over 500 detailed repair guides and technical documents.

Training

Conducted technical training sessions and contributed to repair databases.

Certifications & Research

Certifications

  • ASE Master Technician Certification
  • Advanced Diagnostic Specialist
  • Hybrid/Electric Vehicle Systems
  • Performance Tuning Expert

Research & Community

Actively researches emerging technologies and contributes to automotive forums.

© 2025 Lexus Specs. All rights reserved.