Description
The 3RZ-FE is a 2.7-liter inline four-cylinder gasoline engine produced by Toyota from 1994 to 2004. It was a replacement for the well-known 22R-E and used mostly in commercial trucks and four-wheel drive vehicles such as Toyota Tacoma, T100, Land Cruiser Prado, 4Runner. After 10 years in production, the engine gave way to a new 2.7L engine – 2TR-FE.
The 3RZ engine has a deep-skirt cast iron cylinder block. Bore and stroke sizes are both 95.0 mm (square engine). The engine uses a forged crankshaft – fully balanced, with eight counterweights and a torsional damper pulley. Connecting rods are shot-peened and forged from carbon steel. The 3RZ also got aluminum pistons with resin-coated skirts. Inside the cylinder block, there are oil jets installed to spray oil on the bottom of the pistons for additional cooling. Engine crankcase is equipped with two gear-driven balance shafts.
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