Wasserboxer

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Volkswagen wasserboxer
Overview
Manufacturer	Volkswagen Group
Production	August 1982 – July 1992[1]
Layout
Configuration	flat-4 petrol engine
Displacement	1,914 cc (116.8 cu in), 2,109 cc (128.7 cu in)
Cylinder bore	94.0 mm (3.70 in)[1]
Piston stroke	69mm (1.9L) and 76mm (2.1L)
Cylinder block material	Cast aluminium alloy
Cylinder head material	Cast aluminium alloy
Valvetrain	pushrod OHV
Combustion
Fuel system	carburettor / Electronic Fuel Injection
Fuel type	Petrol/gasoline
Oil system	Wet sump
Cooling system	Water-cooled
Chronology
Predecessor	Volkswagen air-cooled engine

The Volkswagen wasserboxer is a four cylinder horizontally opposed pushrod overhead-valve (OHV) petrol engine developed by Volkswagen. The engine is water-cooled, and takes its name from the German: "Wasserboxer" ("water-boxer"); with "boxer" being another term for horizontally opposed engines. It was available in two displacements – either a 1.9-litre^[1] or a 2.1-litre;^[1] the 2.1-litre being a longer-stroke version of the 1.9-litre, both variants sharing the same cylinder bore.^[1] This engine was unique to the Volkswagen Type 2 (T3) (Transporter T3 / Caravelle / Vanagon / T25), having never been used in any other vehicle.^[1] Volkswagen contracted Oettinger to develop a six-cylinder version of this engine. Volkswagen decided not to use it, but Oettinger sold a Volkswagen Type 2 (T3) equipped with this engine.^[2]