Volvo B7L
low-floor bus chassis from Volvo, VIN code R7

The Volvo B7L is a fully low floor single-decker bus, double-decker bus and articulated bus chassis with a rear engine mounted vertically on the left of the rear overhang. It was built as a replacement for the Volvo B10L, and the Volvo Olympian, used as both a single-decker bus and a double-decker bus chassis largely in Continental Europe. The Volvo B7L was superseded by the Volvo B9L in 2007.
Design
Whilst similar to the B10L in design, both featuring a side-mounted engine, the B7L's engine was a Volvo D7C 7.3 litres (1.6 imp gal; 1.9 US gal) unit mounted vertically, as opposed to the horizontally mounted Volvo DH10/GH10 engine of the B10L; the radiator was mounted above the engine instead of the right-hand side, allowing the floor to be lower behind the rear axle. As with the B10L, B7L was also available in its articulated form, named the B7LA.
The B7L was also available as an integrally-constructed Volvo bus for Continental Europe - the Volvo 5000 (later renumbered 7500) which was assembled with aluminium bodywork, and the Volvo 7000 (later renumbered 7700) which was assembled with stainless steel bodywork. Capable of carrying over 100 passengers, these integral buses featured an entirely flat floor and three doors, the first two having a floor height of 320 millimetres (13 in) that was capable of lowering to 230 millimetres (9.1 in) via the "kneeling" function of the chassis.
Unlike the B10L, the B7L was sold only with diesel combustion engines; integrally constructed Volvo 7000s with CNG engines were only available on the B10L chassis. CNG engines would later be reintroduced with the launch of the B9L chassis in 2005.
Operators
United Kingdom and Ireland
The B7L chassis was first introduced in the United Kingdom in 2000 as a replacement for the Volvo B10BLE and Olympian. The chassis could be fitted with a Wright Eclipse body (and Eclipse Fusion body for B7LA), as well as being demonstrated with Hispano Carrocera bodywork, however the chassis proved unpopular with UK operators due to the arrangement of engine and radiator limiting seating capacity, with FirstGroup being the only major customer.
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