Toyota HD engine

The Toyota HD is a series of diesel engines produced by Toyota. Its best known member, the 1HD-T, is a 12-valve 4.2 litre (4,164 cc) straight-six SOHC turbocharged direct injection diesel with bore and stroke of 94 mm by 100 mm and a compression ratio of 18.6:1. It makes 122 kW and 361 N m of torque. The 1HD-FT that followed is a 24-valve version known as the multivalve, with four valves per cylinder worked by the single overhead camshaft through bridges, a central vertically mounted injector and an intake glow screen heater in place of glow plugs. The family was fitted to the Coaster bus in the HDB20, HDB30 and HDB50 models and to the Land Cruiser HDJ80 and HDJ100.