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Nissan SD engine: Wikis


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The SD engine was replaced by the Nissan RD engine.


Straight 4


The SD20 is a normally aspirated 2.0L Straight 4 diesel engine. The Diesel version Nissan Cedric in mid 1960s was using this engine.



The SD22 is a normally aspirated 2.2L (2164 cc) Straight 4 diesel engine. It produces 70 hp. It was used in the 1965-1971 Nissan Cedric It was also produced in a marine version MN 22 by Chrysler Marine under license during the 1980s.

The SD22 was used in the Datsun 720 pickup trucks 1980 through 1983, producing 61 SAE brake horsepower @ 4000 rpm. The engine has three main bearings (an SD33 six minus two rear cylinders) and was never available with turbocharging like its six-cylinder derivative. In 1981, pistons were upgraded to a three ring piston with a steel compression ring carrier cast as part of the piston for improved durability.

The engine is popular in Australia utilized mostly as a reliable pump for remote livestock stations. It is also used in the Scout. To the best of my knowledge, the engine is still manufactured and imported by JESCO in California. JESCO also supplies parts. Blue Ridge Marine in Lake City, Washington, USA, 800.621.2215 handles the marine version. The marine version uses a water cooled exhaust manifold and expansion tank which are available from the original manufacturer Thompson Foundry in Surrey, BC, Canada, 604.596.9611


The SD23 is a 2.3L (2289 cc) Straight 4 diesel engine with 8 valves (2 per cylinder), and a distributor type injection pump. It produces 73 SAE hp @ 4300rpm


Fitted to Nissan 720 pickup trucks 1983 through 1986 and first year D21 Nissan pickups in 1987.Also fitted to Nissan Cabstar. Featured five main bearing crankshaft & redesigned rear main seal.

Straight 6


The SD33 is a 3.3L (3246 cc) Straight 6 diesel engine, most known for its use in the Nissan Patrol MQ (160 series) from 1980-1983.[1] In 1983 a turbo was added to the Diesel Patrol to boost power from 78 kW to 103 kW (see SD33T below).

The Engine was also used in the UD 3400 series light truck, large forklifts, Marine applications, in International Scout offerings from 1976 to 1979,as well as Jeep CJ-10 and Cj-10a flightline tow vehicles from 1985 to 1986.


The SD33T is the Turbocharged version of the SD33 engine and was used in 1980 for the powerplant in 6400 International Harvester Scout II's. All were equipped with a T-19 manual transmission. From July 1983-1987 SD33T engines were fitted to the Nissan Patrol MK (160 series - model 2).

28 MPG highway - 101 HP


  1. ^ Nissan Patrol model 160&61 Series Workshop Manual

See also


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