Toyota HD engine

The 1HD-T is a 12 valve {{convert|4164|cc|L|1|abbr=on|disp=flip}} straight-6 SOHC turbocharged direct injection diesel engine .{{cite book|title=1HZ, 1HD-T Engine repair manual|date=Feb 1990|publisher=Toyota Motor Company|page=14|edition=NCF064E}} Bore and stroke is {{convert|94x100|mm|2|abbr=on}}, with a compression ratio of 18.6:1. Output is {{convert|164|hp|kW PS|0|abbr=on}} at 3,600 rpm with {{convert|361|Nm|lbft|0|abbr=on}} of torque at 1,400 rpm.

{{Clarify |date=February 2020 |reason=Describe the following list. Are they variants, vehicles in which they were used (what is HDB20?}}

• Coaster, HDB20, January 1990{{Snd}} January 1993
• Coaster, HDB30, January 1990{{Snd}} January 1993
• Coaster, HDB50, January 1993{{Snd}} January 1995
• Land Cruiser, HDJ80, January 1990{{Snd}} January 1995

The 1HD-FT is a {{convert|4164|cc|L|1|abbr=on|disp=flip}} straight-6 24 valve SOHC turbocharged direct injection diesel engine. Bore and stroke is {{convert|94x100|mm|2|abbr=on}}, with a compression ratio of 18.6:1. Known as the "multivalve" it has 4 valves per cylinder (2 inlet, 2 exhaust), central vertically mounted injector, and no glow plugs but rather an intake glow screen heater (like the later electronic 1HD-FTE below). The 4 valves per cylinder are actuated by the SOHC, by using bridges so each rocker actuates a pair of valves. Output is {{convert|168|hp|kW PS|0|abbr=on}} ECE at 3,600 rpm with {{convert|380|Nm|lbft|0|abbr=on}} of torque ECE at 2,500 rpm. However, marinized version of 1HD (sold as Yamaha ME and Yanmar 6LP) have an output of {{convert|315|hp|kW PS|0|abbr=on}} on Yanmar 6LP and {{convert|315|hp|kW PS|0|abbr=on}}, {{convert|370|hp|kW PS|0|abbr=on}} or {{convert|420|hp|kW PS|0|abbr=on}} on Yamaha ME.{{cite web |title=Help me cross reference my 1HD-T/Yanmar 6LPA-DTP |url=https://forum.ih8mud.com/threads/help-me-cross-reference-my-1hd-t-yanmar-6lpa-dtp.671784/ |website=IH8MUD Forum |date=20 December 2012 |access-date=28 April 2022}}{{cite web |title=Yamaha Inboard Diesel-6Cyl 315hp - RIBnet Forums |url=https://www.rib.net/forum/f36/yamaha-inboard-diesel-6cyl-315hp-49717.html |website=www.rib.net}}{{cite web |title=Yanmar 6LP STZE - RIBnet Forums |url=https://www.rib.net/forum/f36/yanmar-6lp-stze-80790.html |website=www.rib.net |access-date=28 April 2022}}{{cite web |title=Yamaha ME420 engines |url=https://forums.ybw.com/index.php?threads/yamaha-me420-engines.173045/ |website=YBW Forum |date=3 September 2008 |access-date=28 April 2022}}

{{Clarify |date=February 2020 |reason=Describe the following list. Are they variants, vehicles in which they were used (what is HDJ80? Source?}}

• Land Cruiser, HDJ80, 1995
• Coaster, HDB50, July 1995{{Snd}} July 1999
• Land Cruiser, HDJ80, July 1995{{Snd}} July 1999
• Yanmar 6LP and Yamaha ME diesel engine (marinized version of 1HD-FT).

The 1HD-FTE is a {{convert|4164|cc|L|1|abbr=on|disp=flip}} straight-6 24 valve turbocharged diesel engine. Bore and stroke is {{convert|94x100|mm|2|abbr=on}}, with a compression ratio of 18.8:1. Output is {{convert|167|hp|kW PS|0|abbr=on}} at 3,400 rpm with {{convert|380|Nm|lbft|0|abbr=on}} of torque at 1,400 rpm. The fuel system is direct injection, and adopts the electronic fuel injection (EFI) system. Redline of this engine is at 4200 rpm.

The 4 valves per cylinder are actuated by the SOHC, by using bridges so each rocker actuates a pair of valves.

The version with intercooler as fitted to HDJ100 station wagons has {{convert|202|hp|kW PS|0|abbr=on}} at 3400 rpm with {{convert|430|Nm|lbft|0|abbr=on}} of torque at 1200-3200 rpm with a redline reaching 4200 rpm. A lower output {{convert|122|kW|hp PS|0|abbr=on}} non-intercooled version powers HDJ78 Troop Carrier and HDJ79 Utility versions.

Also some of the HDB50 and HDB51 Coasters are fitted with this 1HD-FTE engine.

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{{commons category|Toyota HD engines}}

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HD

Category:Diesel engines by model

Category:Straight-six engines

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