The Toyota K CVT transmission is a series of

continuously variable transmissions Continuity or continuous may refer to: Mathematics * Continuity (mathematics), the opposing concept to discreteness; common examples include ** Continuous probability distribution or random variable in probability and statistics ** Continuous g ...

(CVT) found in many

Toyota is a Japanese multinational automotive manufacturer headquartered in Toyota City, Aichi, Japan. It was founded by Kiichiro Toyoda and incorporated on . Toyota is one of the largest automobile manufacturers in the world, producing about 10 ...

automobiles. The transmissions are manufactured by

Aisin is a Japanese corporation that develops and produces components and systems for the automotive industry. Aisin is a Fortune Global 500 company, ranked 359 rankings. Aisin is a member of the Toyota Group of companies. Aisin was founded in 1965 ...

, 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 An automatic transmission (sometimes abbreviated to auto or AT) is a multi-speed transmission used in internal combustion engine-based motor vehicles that does not require any input from the driver to change forward gears under normal driving c ...

that can change seamlessly through a continuous range of

gear ratios A gear train is a mechanical system formed by mounting gears on a frame so the teeth of the gears engage. Gear teeth are designed to ensure the pitch circles of engaging gears roll on each other without slipping, providing a smooth transmission ...

. 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 practit ...

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 The and its twin the are sedans sold in Japan from 2001 to 2021 by Toyota. The sedans are designated as a compact car by Japanese dimension regulations and the exterior dimensions do not change with periodic updates. Unlike Toyota's other v ...

, Premio, Wish – 2.0L (2001–2011) * Toyota Voxy – 2.0L (2007–2011) *

Toyota Auris 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 hatchba ...

& Corolla Axio / Fielder *

Toyota Ractis The is a mini MPV produced by Japanese automaker Toyota. It is a five-seater mini MPV based on the Vitz, and was introduced in October 2005 as the successor of the Yaris Verso/FunCargo. The name "Ractis" is derived from "Run", "Activity" and "S ...

& Sienta *

Toyota Vitz The is a subcompact car produced by the Japanese automobile manufacturer Toyota from 1999 to 2019 in a three- or five-door hatchback body styles. The "Vitz" nameplate was used consistently in Japan, while most international markets received th ...

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 The is a minivan produced by the Japanese automaker Toyota since 2002. It is available as a seven or eight-seater with petrol and hybrid engine options. Hybrid variants have been available since 2003, which incorporates Toyota's Hybrid Synergy ...

– 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 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 ...

– 2.0/2.4/2.5L (2005–2011) *

Toyota Vanguard 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 ...

– 2.4L (2007–2011) *

K114

Applications: *

Toyota C-HR The is a subcompact crossover SUV manufactured by Japanese automaker Toyota since 2016. The development of the car began in 2013, led by Toyota chief engineer Hiroyuki Koba. The C-HR is based on the same TNGA-C (GA-C) platform as the E210 seri ...

/ 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/ Allion/ Levin GT (E210) – 2.0L (2018–present) *

Toyota Camry (XV70) The Toyota Camry (XV70) is a mid-size car that has been produced by Toyota as the eighth-generation of the global Camry model, and was introduced at the January 2017 North American International Auto Show. It is built on the GA-K platform. ...

– 2.0L (2019–present) *

Toyota Avalon (XX50) The is a full-size sedan produced by Toyota. It is Toyota's largest front-wheel drive sedan and serves as its flagship vehicle in the United States, Canada, China and the Middle East. It was also produced in Australia from April 2000 until ...

– 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) platf ...

- 2.0L (2021–present) *

Toyota Innova 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 ...

/ Kijang Innova Zenix (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) The is a five-passenger compact, later mid-size crossover SUV produced by Toyota since December 1997 in Japan, which was once exclusive to ''Toyopet Store'' Japanese dealerships. In export markets, the Harrier was rebadged as the Lexus RX from ...

- 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: *

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: *

(K311), Altis – 1.8L (2010–present) *

(K311) – 1.8L (2020–present) *

(K312) – 1.2L (2017–present) *

Toyota Vios The Toyota Vios is a nameplate used for subcompact cars produced by the Japanese manufacturer Toyota, primarily for markets in Southeast Asia, China and Taiwan since 2002. Slotted below the compact Corolla, the Vios serves as the replacement t ...

(K312) – 1.5L (2016–present) *

Toyota Yaris The is a supermini/ subcompact car sold by Toyota since 1999, replacing the Starlet and Tercel. Up to 2019, Toyota had used the Yaris nameplate on export versions of various Japanese-market models, with some markets receiving the same vehicl ...

(K312) – 1.5L (2016–present) *

Toyota Sienta The is a mini MPV with sliding doors manufactured by Toyota. It was introduced in September 2003, based on the Vitz/ Yaris subcompact car, and is available at all Toyota dealerships in Japan. The Sienta is sold in Japan, Hong Kong, Singapor ...

(K313) - 1.5L (2015-present) Previous applications: *

, Corolla, Rumion – 1.5/1.8L (2006-2011) *

, Premio – 1.5/1.8L, IST 1.5L (2007-2011) *

Toyota Avensis The is a mid-size/ large family car built in Derbyshire, United Kingdom by the Japanese automaker Toyota from October 1997 to August 2018. It was the direct successor to the European Carina E and was available as a four-door saloon, five-door l ...

– 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 The Toyota Probox is a 5-door, 2 or 4-seater passenger car (Probox Wagon) and light commercial van (Probox Van) produced by the Japanese automaker Toyota since July 2002. It replaced the Corolla/ Sprinter van and served as a slightly shorter vers ...

, 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 The , referred to in North American and Australian markets as the Yaris and in Asian markets as the Vios, is a subcompact sedan manufactured by Toyota. The successor to the Platz sedan, the Belta has increased in size over the previous gen ...

* 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 The A-segment is the 1st category in the passenger car classification system defined by the European Commission. It is used for city cars, the smallest category of passenger cars defined. A-segment sales represent approx. 7-8% of the market in ...

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

References

{{Reflist K CVT transmission Aisin transmissions Continuously variable transmissions