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Dennis Trident 2
Stagecoach London 18476 on Route 498, Romford Queen's Hospital (19057369188).jpg
Stagecoach London Alexander Dennis ALX400 bodied Trident 2 at Queen's Hospital on route 498 in 2015
Manufacturer Dennis
Alexander Dennis
Production 1997–2018
Body and chassis
Doors 1 or 2
Floor type Low floor
Power output Cummins C-series:
220hp, 245hp
Cummins ISCe::
225hp, 260hp
Cummins ISBe:
250hp (diesel), 185hp (hybrid)
Cummins ISLe:
Transmission Voith DIWA
ZF Ecomat
ZF EcoLife (Enviro400 only)
Length 2-axle Trident:
9.9m, 10.5m, 10.6m, 11.4m
10.1m, 10.2m, 10.5m, 10.8m, 10.9m, 11.4m
Width 2.55m
Height 4.1m to 4.4m
Predecessor Dennis Arrow

The Dennis Trident 2 is a 2-axle low-floor double-decker bus chassis, It was built in 1999 by Dennis and then TransBus International and then Alexander Dennis.

It was available with Alexander ALX400, Plaxton President and East Lancs Lolyne/Myllennium Lolyne bodywork.

In 2005, Alexander Dennis made a new version of Trident 2 chassis for its Enviro400 double-decker called the Enviro400 chassis, the name "Trident 2" continued to be used

The new version of Trident 2 chassis was also available with Darwen/Optare Olympus bodywork, the first example was delivered to CT Plus of London in 2008.

In 2008, Alexander Dennis unveiled the hybrid-electric powered version of Trident 2 (the Enviro400H) using BAE Systems's HybriDrive series drive system with Cummins ISBe 4-cylinder engine fitted for power generation. Also in the same year, Alexander Dennis unveiled the further developed version of Trident 2 for the "New Generation" Enviro400, with the engine being moved to the left side and the radiator being moved to the right side of the engine compartment. It could be fitted with Cummins ISBe Euro V/EEV or MAN D0836LOH engine, coupled to Voith DIWA or ZF EcoLife gearbox. In 2009, Alexander Dennis developed the Hong Kong version of the Trident 2 (Enviro400). Based on the further developed version unveiled in 2008, it has a longer rear overhang and could be fitted with Cummins ISLe Euro V engine.


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