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The Toyota K CVT transmission is a series of continuously variable transmissions (CVT) found in many Toyota automobiles. The transmissions are manufactured by Aisin, a automotive parts manufacturer that is part of the
Toyota Group The is a group of companies that have supplier, vendor and investment relationships with Toyota Industries and Toyota Motor vehicle manufacturing facilities. It is similar to a ''keiretsu'' in that no particular entity has outright control over ...
of companies. A CVT is a type of automatic transmission that can change seamlessly through a continuous range of gear ratios. This contrasts with other transmissions that provide a limited number of gear ratios in fixed steps. The K series uses two pulleys connected by a
belt Belt may refer to: Apparel * Belt (clothing), a leather or fabric band worn around the waist * Championship belt, a type of trophy used primarily in combat sports * Colored belts, such as a black belt or red belt, worn by martial arts practition ...
.


K110/K111/K112 series (2000)


K110

The K110 was Toyota's first belt-type CVT and production began in August 2000. Toyota said that the transmission was both fuel-efficient and offered high driving performance. The K110 features a torque converter with a long-travel damper to help achieve quiet operation and improved
fuel efficiency Fuel efficiency is a form of thermal efficiency, meaning the ratio of effort to result of a process that converts chemical potential energy contained in a carrier (fuel) into kinetic energy or work. Overall fuel efficiency may vary per device, wh ...
. Applications: *
Toyota Opa The is a compact car produced by Toyota. Its name derives from the exclamation for surprise in Portuguese. It was introduced at the October 1999 Tokyo Motor Show as a prototype car, and was put into production in January 2000. It was the resu ...
– 2.0L (2000–2005) * Toyota Allion, Premio, Wish – 2.0L (2001–2011) *
Toyota Voxy The is a minivan with two rear sliding doors built by Toyota and sold mainly in Asian countries. It is positioned below the Estima and Alphard, and above the Sienta. Being a front-wheel drive-based vehicle, it replaces the rear-wheel drive-b ...
– 2.0L (2007–2011) * Toyota Auris & Corolla Axio / Fielder * Toyota Ractis & Sienta * Toyota Vitz


K111

The K111 transmission is an improved version of K110 introduced in July 2004. The K111 adds neutral-gear control and acceleration linear control. Applications: *
Toyota Noah The is a minivan with two rear sliding doors built by Toyota and sold mainly in Asian countries. It is positioned below the Estima and Alphard, and above the Sienta. Being a front-wheel drive-based vehicle, it replaces the rear-wheel drive-b ...
, Voxy – 2.0L (2004–2007) *
Toyota Corolla (E140) The Toyota Corolla (E140/E150) is the tenth generation of cars sold by Toyota under the Corolla nameplate. The Toyota Auris replaced the Corolla hatchback in Japan and Europe, but was still badged "Corolla" in Australia and New Zealand. The ch ...
, Altis – 2.0L (ZRE143, 2010-2014)


K112

The K112 transmission, introduced in October 2005, is a modified version of the K111 that is built to work with higher displacement 2.4L engines. Applications: * Toyota Alphard – 2.4L (2008–2017) *
Toyota Blade The is a compact car derived from the Corolla, manufactured and sold by Toyota. Introduced in 2006, the first generation three/five-door hatchback shared the platform with the E150 series Corolla, while the second generation five-door hatch ...
– 2.4L (2006–2011) *
Toyota Estima The Toyota Previa, also known as the in Japan, and Toyota Tarago in Australia, is a minivan that was produced by Toyota from 1990 until October 2019 across three generations. The name "Previa" is derived from the Spanish and Italian for "previ ...
– 2.4L (2006–2017) * Toyota Mark X Zio – 2.4L (2007–2011) * Toyota RAV4 – 2.0/2.4/2.5L (2005–2011) * Toyota Vanguard – 2.4L (2007–2011) *
Toyota Opa The is a compact car produced by Toyota. Its name derives from the exclamation for surprise in Portuguese. It was introduced at the October 1999 Tokyo Motor Show as a prototype car, and was put into production in January 2000. It was the resu ...


K114

Applications: * Toyota C-HR/ IZOA – 2.0L (2018–present)


K120 "Direct Shift" transmission (2018)

Toyota brands the K120 as the “Direct Shift” CVT and includes a physical first gear (also known as a "launch gear") and nine additional simulated gears, for a total of 10. The launch gear is engaged when the car takes off from being stopped and transitions to the belt drive once the car picks up speed. The benefit of this system is that traditional CVTs tend to have low efficiency in lower gear ratios (creating a moment of sluggishness when starting from a stop). Since the belts in this CVT are handling a more narrow band of gear ratios, belt angles and loads can be reduced, increasing shift speeds and offering a claimed 6% improvement in fuel efficiency. Production began in October 2018. Applications: *
Toyota Yaris (XP210) The XP210 series Toyota Yaris is the fourth generation of the Yaris, a subcompact car/supermini (B-segment) manufactured by Toyota for the Japanese, European and Australasian markets. The model was released in October 2019 to replace the XP1 ...
and Yaris Cross (2020–present) *
Toyota Corolla The is a series of compact cars (formerly subcompact) manufactured and marketed globally by the Toyota Motor Corporation. Introduced in 1966, the Corolla was the best-selling car worldwide by 1974 and has been one of the best-selling cars in ...
/
Auris Auris may refer to: * Auris, Isère, a town in France * Auris, a snail genus, catalogued by George Washington Tryon * Toyota Auris, an automobile * Ear (Latin) * '' Auris'', the first ocean-going merchant ship powered by a gas turbine A gas tu ...
/ Allion/ Levin GT (E210) – 2.0L (2018–present) * Toyota Camry (XV70) – 2.0L (2019–present) * Toyota Avalon (XX50) – 2.0L (2019–present) *
Toyota Corolla Cross The is a compact crossover SUV (C-segment) produced by the Japanese automaker Toyota since 2020. Adopting the Corolla nameplate, it is positioned as a more practical and larger alternative to the C-HR and built on the same TNGA-C (GA-C) plat ...
- 2.0L (2021–present) * Toyota Innova/
Kijang Innova Zenix The Toyota Innova is a car manufactured by the Japanese carmaker Toyota since 2004. It is a multi-purpose vehicle (MPV) or minivan and mainly sold with three-row seating. Its official name in Indonesia is Toyota Kijang Innova, while for other c ...
(2022–present) *
Toyota RAV4 (XA50) The is a compact crossover SUV produced by the Japanese automobile manufacturer Toyota. Considered the first ever compact crossover SUV, it made its debut in Japan and Europe in 1994, and in North America in 1995, being launched in January 19 ...
/ Wildlander – 2.0L (2018–present) * Toyota Harrier (XU80) - 2.0L (2021–present) * Lexus ES 200 (2020–present) * Lexus UX 200 (2018–present)


K210 transmission (2002)

Achieve both high fuel efficiency and high powertrain performance through size and weight reductions and are perfect suited for vehicles in the 1.5- to 1.8-liter class. Production began December 2002. Later in February 2003 Toyota achieves fuel efficiency improvements through its Intelligent Idling Stop System developed by adding an electronic oil pump to the K210 belt-type CVT, ensuring excellent startup performance during engine restarts and producing class-leading fuel efficiency. Applications: * Toyota Vitz * Toyota Ractis


K310/K311/K312/K313 series (2006)

Achieve both high fuel efficiency and high powertrain performance through size and weight reductions and are suitable for vehicles in the 1.5- to 1.8-liter class. Production began in September 2006. Current applications: *
Toyota Corolla The is a series of compact cars (formerly subcompact) manufactured and marketed globally by the Toyota Motor Corporation. Introduced in 1966, the Corolla was the best-selling car worldwide by 1974 and has been one of the best-selling cars in ...
(K311), Altis – 1.8L (2010–present) *
Toyota Corolla Cross The is a compact crossover SUV (C-segment) produced by the Japanese automaker Toyota since 2020. Adopting the Corolla nameplate, it is positioned as a more practical and larger alternative to the C-HR and built on the same TNGA-C (GA-C) plat ...
(K311) – 1.8L (2020–present) * Toyota C-HR (K312) – 1.2L (2017–present) * Toyota Vios (K312) – 1.5L (2016–present) * Toyota Yaris (K312) – 1.5L (2016–present) * Toyota Sienta (K313) - 1.5L (2015-present) Previous applications: * Toyota Auris, Corolla, Rumion – 1.5/1.8L (2006-2011) * Toyota Allion, Premio – 1.5/1.8L, IST 1.5L (2007-2011) * Toyota Avensis – 1.8/2.0L (2008-2011) *
Toyota Isis The Toyota Isis is a seven-seat large MPV manufactured by Kanto Auto Works under contract for Japanese automaker Toyota. It is sold in Japan and was launched in September 2004. It features sliding doors and is available with either front- or f ...
, Verso (K311), Wish – 1.8L (2009-2011) * Toyota Probox, Succeed – 1.5L (2010-2011) Final drive: *5.698:1 (when fitted to 1.5L Allion & Premio 1NZ-FE and 1.8L Corolla 2ZR-FE) *5.356:1 (when fitted to 1.8L Allion & Premio 2ZR-FE)


K410/K411/K41 series (2004)


K410

Achieves both high fuel efficiency and high powertrain performance through size and weight reductions. Designed for vehicles with engine displacements between 1- and 1.3-liters. Production began December 2004. Applications: * Toyota Belta * Toyota Vitz * Several other models Final drive: *5.833:1 (when fitted to 1L 1KR-FE) *5.08:1 (when fitted to 1.3L 1NR-FE)


K41A

A version of the K410 transmission with the differential shifted forward to maximize space the Toyota iQ, a compact city car that was engineered to maximize passenger space, while minimizing exterior length. Production began October 2008. Applications: * Toyota iQ


K41B

Created by increasing the capacity of the K41A CVT, for 1.3-liter engines. Production began April 2009. Applications: * Toyota iQ


K411

Based on the K410 and adopting a flex-start control mechanism for the first time in a Toyota CVT; Lock-up clutch actively activated during startup to run the engine in the most efficient operating region, thereby improving fuel efficiency. Production began December 2010. Applications: * Several models including Corolla, Auris, Vitz, Vios, Yaris, and Echo


See also


Toyota Drivetrain technical development


References

{{Reflist K CVT transmission Aisin transmissions Continuously variable transmissions