Engine piston 55574797

Description

Engine piston by GM, catalog number 55574797. Confirmed catalog fitment: Alfa Romeo 159 939 (2005–2011), Alfa Romeo 159 939 (2006–2011), Alfa Romeo BRERA 939 (2006–2011), Alfa Romeo Giulietta 940 (2010–2020), Alfa Romeo SPIDER 939 (2006–2011) and other body variants. For an accurate match, compare the number and identification with the removed part and confirm the vehicle specification by VIN. The fitment list is a reference and does not replace a vehicle-specific compatibility check.

ENGINE PISTON

An engine piston is a key component of the crankshaft assembly designed to convert combustion energy into mechanical motion. It moves inside the cylinder and transfers force through the connecting rod to the crankshaft.

The piston works together with the cylinder, piston rings, connecting rod, crankshaft, and lubrication system. Its condition directly affects engine compression, power output, oil consumption, and overall performance.

A worn or damaged piston may cause compression loss, increased oil consumption, exhaust smoke, knocking sounds, overheating, or severe engine damage.

Our catalog includes engine pistons for many vehicle brands. Available options include genuine factory piston components, reliable aftermarket replacements, and tested used pistons without cracks or overheating damage. Standard and oversize versions, as well as solutions for petrol and diesel engines, are available for different engine generations.

Used parts are inspected for cracks, detonation marks, skirt wear, ring groove condition, and overheating traces.

Selection is available by VIN number, engine code, cylinder diameter, oversize specification, part number, and vehicle year. Replacing a worn piston restores compression and engine efficiency.

Compatibility

Fits 23 vehicles

Nothing found

About the manufacturer · GM

GM (General Motors) is one of the largest automotive corporations in the world, founded in 1908 in the United States by entrepreneur William C. Durant. The company объединяет several well‑known automotive brands includin...

GM (General Motors) is one of the largest automotive corporations in the world, founded in 1908 in the United States by entrepreneur William C. Durant. The company объединяет several well‑known automotive brands including Chevrolet, GMC, Cadillac and Buick and is a major manufacturer of vehicles, powertrains and genuine automotive components. Under the GM brand a wide range of original spare parts and components is produced for vehicles of the group, including engine parts, cooling system components, transmission elements, suspension parts, braking systems, electronic modules, sensors, fuel system components and body parts. Genuine GM parts are developed according to factory technical specifications and undergo strict quality control at every stage of production. This ensures precise compatibility with GM vehicles, reliable operation of vehicle systems and preservation of factory performance characteristics. According to feedback from vehicle owners and automotive service professionals, GM genuine components are known for consistent manufacturing quality, solid reliability and long service life. Many users report precise fitment without the need for modifications and stable vehicle performance after replacing components. The most commonly mentioned drawback is the relatively higher price compared with some aftermarket alternatives, although many vehicle owners consider genuine GM parts a justified choice due to their reliability, durability and compliance with manufacturer standards.

Additional information

Engine piston by GM, catalog number 55574797, is listed for vehicle repair or maintenance. The catalog identifies the item as “Engine piston”. Confirmed catalog fitment: Alfa Romeo 159 939 (2005–2011), Alfa Romeo 159 939 (2006–2011), Alfa Romeo BRERA 939 (2006–2011), Alfa Romeo Giulietta 940 (2010–2020), Alfa Romeo SPIDER 939 (2006–2011), Fiat BRAVO II 198 (2007–2014) and other body variants. Fitment is based on the catalog links between the part and vehicle bodies. It helps narrow the search, but final compatibility must be confirmed for the exact vehicle specification. The primary ordering references are part number 55574797 and manufacturer GM. Parts can differ within the same vehicle model by production year, engine, transmission, installation side, or position. Before purchase, compare the number and identification with the removed component and verify body, year, and specification by VIN. Also compare appearance, connectors, mountings, dimensions, and included items whenever those details are relevant to this part.

Related items

1 785 грн