High-pressure fuel pump 55585049

Description

High-pressure fuel pump by GM, catalog number 55585049. Confirmed catalog fitment: Buick Cascada (2015+), Opel ASTRA J GTC (2011–2018), Opel ASTRA K (2015–2022), Opel ASTRA K (2015–2022), Opel Cascada W13 (2013–2019) 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.

HIGH-PRESSURE FUEL PUMP (HPFP)

A high-pressure fuel pump (HPFP) is a key component of the fuel injection system in diesel and some direct-injection petrol engines. It delivers fuel at high pressure to the injectors, ensuring precise metering and efficient combustion.

The HPFP is mounted on the engine and driven mechanically or via the camshaft. It works together with the common rail system, fuel injectors, pressure sensors, fuel pressure regulator, and engine control unit.

A faulty high-pressure fuel pump may cause hard starting, power loss, unstable engine operation, increased fuel consumption, fuel pressure fault codes, metal shavings in the fuel system, or complete engine failure to start.

Our catalog includes high-pressure fuel pumps for many vehicle brands. Available options include genuine factory fuel system components, reliable aftermarket replacements, and tested used pumps without mechanical damage. Solutions for common rail systems, pump-injector systems, and traditional diesel setups are available.

Used parts are inspected for housing integrity, shaft condition, absence of excessive play, mounting integrity, and proper pressure regulation functionality.

Selection is available by VIN number, engine code, fuel system type, part number, and vehicle year. Replacing a faulty HPFP restores proper fuel delivery and stable engine performance.

Compatibility

Fits 8 vehicles

Nothing found

Which car this part came from

Photos, VIN and details of the donor car.

Buick Cascada 2016
Buick Cascada 2016 Being dismantled
VIN
W04WT3N58GG112788
Make
Buick
Model
Cascada
Body type
convertible
Year
2016
Engine
1.6 L · petrol · LWC
Gearbox
automatic
Drive
front-wheel
All parts from this car (107)

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

High-pressure fuel pump by GM, catalog number 55585049, is listed for vehicle repair or maintenance. The catalog identifies the item as “High-pressure fuel pump”. Confirmed catalog fitment: Buick Cascada (2015+), Opel ASTRA J GTC (2011–2018), Opel ASTRA K (2015–2022), Opel ASTRA K (2015–2022), Opel Cascada W13 (2013–2019), Opel Insignia B Z18 (2017+) 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 55585049 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.

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