List of North American Volkswagen engines
This list of North American Volkswagen engines details internal combustion engines found in the Volkswagen Passenger Cars and Volkswagen Commercial Vehicles marques, as sold in the North American markets. Volkswagen Group engines are not widely known by "engine families" in the same way some other manufacturers do. VW Group engines are commonly known by the type of fuel they use, their displacement, and their rated motive power output. VW Group "does" have names of "engine series", and individual engines are identified by an "ID code" (early codes were one or two letters/numbers, later  IDs were generally three letters, and their very latest engines now use four letters) - but they have been known to apply many different ID codes to seemingly identical engines. Diesel engines. Indirect injection. 4-cylinder D. Volkswagen's inline-four-cylinder diesel engine (D) started out life as the gasoline-fueled EA827 series. The series ranges in size, from the original 1.5-litre, to the enlarged 1.9-litre. Some variants came with turbochargers - TurboDiesel (TD), and catalytic converters. Direct injection. Currently, all diesel engines offered by Volkswagen Group are direct injection (DI). This engine started as a straight-five-cylinder  Audi diesel in 1989 (itself derived from the EA827 series), but got reduced to an inline-four-cylinder for Volkswagens use. It is related (through several evolutions of engine families) to the EA827 series, indirect-injection diesels, 16 valves, and five-cylinder gasoline engines. Naturally aspirated direct-injection variants are known as Suction Diesel Injection, abbreviated to SDI. Many are offered with a turbocharger, and known as Turbocharged Direct Injection (TDI). Gasoline engines. 4-cylinder. Wasserboxer. The Wasserboxer is Volkswagen's water-cooled four-cylinder boxer engine, based on the air-cooled design. It was solely used in the 1983–1991  Volkswagen Vanagon. EA827 series. Known classically as the "counterflow 8 valve", the EA827 engine series is the root of most of Volkswagen's engines in the 1970s, 1980s and 1990s. It started as an Audi-designed engine and spawned straight-five-cylinder, diesel, crossflow, turbo, supercharged, and 16 valve variants. While mostly retired, the "second cousin" of the EA827 is still alive, known as the TDI. EA113 series. The EA113 engine is a derivative of the classic EA827 series. It includes a crossflow cylinder head instead of counterflow cylinder head. 16-valve. The 16 valve Volkswagen engine is the same  as the EA827 series, the only difference being the addition of piston cooling oil squirters, similar to the g60 block but with a 16 valve cylinder head attached. 1.8 T. Volkswagen's ubiquitous 1.8 T engine, wholly developed by Audi, also known as the 1.8 20vT, has seen many improvements over the years and is used in many Volkswagen vehicles. It is sometimes mounted longitudinally while at other times mounted transversely. Its cylinder head contains five valves per cylinder–a total of 20 valves, and all versions use a turbocharger. Fuel Stratified Injection. The latest development of this engine range . An all new cylinder head was needed for the Audi-developed Fuel Stratified Injection (FSI), which features cylinder-direct fuel injection straight into the combustion chambers. The result of needing to site both spark plug and fuel injector meant that the former five-valve layout had to be changed to a four-valve-per-cylinder arrangement. Like previous engines, where the T appears, it stands for forced induction, usually by a turbocharger. 5-cylinder. Older Volkswagen inline-five-cylinder engines are an adaptation of the original Audi five-cylinder engine (for use in the Audi 4000-derived Quantum). Eurovan five -cylinders are a 2.5-litre non-crossflow 10-valve engine with an extra cylinder and balance rods added. Volkswagen most recently came out with a new five-cylinder developed (loosely) from half of a Lamborghini Gallardo V10 engine. 6-cylinder. V6 engine. Volkswagen used a conventional V6 engine in the B5 Passat, because the drivetrain was longitudinally mounted. Like the original VR6, it was 2.8 litres in size, but unlike the VR6, it was a true 90-degree V6, and had 30 valves with continuously variable intake valve timing. VR6 engine. Volkswagen's potent VR6 engine was originally conceived as  a diesel engine, but later found itself as a gasoline engine. This engine was designed and created so that a six cylinder engine could fit within an engine bay of car originally designed for an inline-four engine. 8-cylinder. W8 engine. Volkswagen has only built a single W8 engine, for the 2001–2004 Passat. It was a test bed for the W engine technology, which made it into the W12 (listed below), and the W16, as used in the Bugatti Veyron EB16.4. V8 engine. Volkswagen has only used one fundamental design for its V8 engine - an all-aluminium alloy construction , but with evolutions in engine management and fueling systems. Like its other engines, increases in power necessitated new engine ID codes. Only the Phaeton and Touareg in the Volkswagen Passenger Cars marque have used a V8 engine. 12-cylinder. W12 engine. Volkswagen has used only one W12 engine in their vehicles (though shared with the Audi A8). An increase in power in 2006 saw a new engine ID code.