page_title: PSA TU engine
section_title: TU3
hierarchical_section_title: PSA TU engine / TU3
caption_attribution_description: Citroën C3 TU3 1.4l 8V Petrol engine
context_page_description: The PSA TU engine is a family of small four-cylinder engines used in the Peugeot and Citroën range of cars. It was introduced in 1986 with the Citroën AX, replacing the X family, although it shared many components with its predecessor. The TU is available in either petrol or a naturally aspirated diesel variant, the latter called TUD.
  The TU engine is distantly related to the older X-Type engine - sharing a similar overhead camshaft architecture, but the key differences are the belt driven camshaft, and that the TU is mounted in a conventional upright position with a separate, end-on mounted transmission and unequal length drive shafts. The X engine, by comparison, had an integral transmission mounted on the side of the crankcase, sharing a common oil supply and was mounted almost lying flat on its side within the car.
  The TU engine is/was used in the following cars:
  Citroën: AX, Saxo, C2, C3, C4, BX, ZX, Xsara, C15, Nemo and Berlingo. Peugeot: 106, 107, 205, 206, 207, 309, 306, 307, 405, Bipper, Partner and Hoggar, the Iranian Peugeot 405 and Pars as well as the Samand Soren and IKCO Runna.
context_section_description: The TU3 has a displacement of 1.4 L (1,360 cc), with a bore and a stroke of 75 mm × 77 mm (2.95 in × 3.03 in). This engine has been one of the most used by the PSA Group, with applications in superminis, compacts and midsize cars, including a stint in competition use in the Citroën AX GT Cup and the Citroën AX GTI Cup, held in many European countries throughout the early 1990s in both circuit racing and rallying.
  In its early years, it was available with either a single or double barrel carburetor, with fuel injection introduced in 1990 for the AX GTI and 106 XSi, capable of delivering 100 PS (74 kW; 99 hp) at 6600 rpm. The carburated versions gave way to fuel injection in 1992, while the sports version was retired in 1996.
caption: A TU3 in a Citroën C3
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