BYD Auto K9

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A right-hand drive BYD K9 operating in Hong Kong.
Years of manufacture 2010 to present
Length 39 feet
Width 100 inches
Power/Fuel Electric

The BYD Auto K9, also called the "eBus-12", is a low floor battery-electic transit bus. It can be fully charged in five hours and can travel a distance of 249 kilometres in an urban environment.

Design history

Development of the bus began in 2009. By the beginning of 2010, a prototype was undergoing trials.[1] The early K9 was a fully low floor bus and could feature two or three doors. The batteries were located above each of the wheelwells in the passenger compartment, and the majority of the seats were arranged along the perimeter of the bus.

In 2011, BYD made their entrance into the Canadian market through East Wind Group and Canadian Rail Collision and Refurbish. A demo bus was displayed in May 2011 in Mississauga and inspected by MiWay, Metrolinx, Brampton Transit, OC Transpo and other Ontario transit agencies.[2] East Wind Group selected Windsor, Ontario as the city where an assembly for the buses would be located.[3] Windsor was to receive up to 10 buses as part of the agreement, however it expired in 2013. No buses were purchased as they never received Canada Motor Vehicle Safety Standards approval.[4]

A left-hand drive BYD K9 operating in the United States.

At the end of 2012, the K9 was revised to a partial low floor design. The batteries over the rear wheels are now on the roof and behind the rearmost seats, but the batteries over the front wheels remain. The front fascia was slightly revised with less of a slope and a higher windshield. The rear was reconfigured with more space for mechanical components, eliminating the rear window.

Long Beach Transit awarded BYD a contract for 10 buses in March 2013, and BYD was able to acquire an assembly facility in Lancaster, California. They introduced a model built to American and Canadian motor vehicle standards, called the K9M, in June 2013. It looks similar to their partial low floor model sold overseas. Key differences include interior fittings, simplified headlights, and thicker front and rear bumpers. Further revisions include a streamlined raised roofline and standardized round tail lights.

The order by Long Beach was mutually cancelled by the city and BYD in March 2014. According to the Federal Transit Administration, BYD was not eligible for the federally-funded bus contract at the time it was awarded. The bidding process was restarted, this time with BYD as an eligible manufacturer. In April 2015, they were able to once again secure the contract.

In 2016, BYD introduced a new body style across most of their North American product line. The round headlights angle downwards towards the centre of the front with the area sculpted above to match. The roofline is raised at the front and sweeps back. The roofline at the rear is shaped similarly. This model is known as the K9MC. The buses built for the University of California, Los Angeles are among the first to feature this design.



Belgium Flag of Belgium.png

  • Société des transports intercommunaux de Bruxelles (STIB) - Brussels (demonstration)

Canada Flag of Canada.png

Finland Flag of Finland.png

  • Veolia Transport Finland - Espoo

Hong Kong Flag of Hong Kong.jpg

India Flag of India.png

  • Bangalore Metropolitan Transport - Bangalore

Israel Flag of Israel.png

  • Dan Bus Company - Tel Aviv

Malaysia Flag of Malaysia.png

  • Rapid KL

Netherlands Flag of Netherlands.png

  • Arriva Schiermonnikoog - Schiermonnikoog

Serbia Flag of Serbia.png

  • Gradsko saobraćajno preduzeće Beograd - Belgrade

Spain Flag of Spain.png

  • Transports Metropolitans de Barcelona (TMB) - Barcelona

United Kingdom Flag of the United Kingdom.png

  • Go-Ahead London - London

United States Flag of the United States.png

Demonstrator and engineering units

Below is a list of known demonstrator and engineering buses.

Fleet number Thumbnail Year VIN Motors Notes
no3 August 2012 LC06S24R4C0000004
1322 / 33-999 August 2012 LC06S24R4C0000005
no# 2013 LC06S24R2D0000019 BYD TYC90A
no# 2013 LC06S24R2D0000020 BYD TYC90A
no# February 2013 LC06S24R0D0000021 BYD TYC90A
  • Model No. CK6120LGEV2
  • Submitted for Altoona Test from April 25, 2013 to May 22, 2014.
0060 2013 LC06S24R2D0000022
no# February 2014 4B9KSLA17E2038001
  • Model No. CK6120LGEV2
  • Beige livery, full roof trim.
  • Displayed at 2014 CUTA Trans-Expo
  • Tested with Oakville Transit April 2015
  • Displayed at 2015 Ontario Transportation Expo
  • Tested with STL AUgust 2015
  • Tested with Halifax Metro Transit July 2015
no# September 2014
6011 November 2014
  • ETS "Stealth Bus" livery
  • On trial with ETS winter and spring 2016
6012 BYD Auto K9 2014 demonstrator 6012-a.jpg November 2014 LC06S24A8F1000002
  • Model No. CK6120LGEV2
  • ETS "Stealth Bus" livery
  • On trial with ETS winter and spring 2016
  • On trial with Transdev Québec May to July 2016
  • On trial with Urbis beginning 6 July 2016
  • Displayed at TTC divisions 16-20 April 2018.
1007 / 9092 BC Transit 9092-a.jpg May 2016 4B9KSLA69G2038001


  1. BYD K9 electric bus. 12 January 2011. BYD Auto Co. Ltd.. Retrieved 19 August 2011.
  2. Rosella, Louie (10 May 2011). 'E-bus' Visits Mississauga. Retrieved on 19 August 2011
  3. Doelen, Vadner (4 May 2011).Electric Buses Assembled in Windsor. Windsor Star (Windsor). Retrieved on 19 August 2011
  4. 01 May 2013. BYD deal with Windsor expires, company opens in California. Canadian Broadcasting Corporation. Retrieved on 28 June 2013
  6. Miller, Scott (3 April 2018). Vail testing fully electric buses this year; purchases wouldn’t come until 2020. Vail Daily. Retrieved 16 April 2018.
  7. Miller, Scott N. (04 April 2018). Vail tests electric buses. The Denver Post. Retrieved 16 April 2018.

External links