New Oil Pump Fiat Alfa Romeo Lancia

The oil pump with original OE code 55195304 is a fundamental mechanical component for the proper functioning of the lubrication system in 1.4 gasoline engines with 8 valves and 16 valves mounted on numerous Fiat, Alfa Romeo, and Lancia models. It is an internal type helical gear pump, designed to ensure a constant flow rate and adequate oil pressure to all vital engine parts, including the crankshaft, camshaft, pistons, and bearings.

Technical characteristics

The OE oil pump 55195304 is made of die-cast light alloy, with high-precision housing and hardened steel gears. It is generally installed at the front of the engine block, corresponding to the crankshaft. The main technical features include:

• Monoblock pump body in die-cast aluminum
• High-strength steel helical gears
• Overpressure valve integrated into the pump body
• Lower connection for the oil pick-up tube from the sump
• Sealing gaskets on the engine seat and suction tube

DIPA offers a range of original and aftermarket spare parts of equivalent quality.

Functionality

The function of the oil pump is to draw oil from the reservoir (lower sump) and distribute it under pressure to the various mechanical components of the engine. Through specific channels, the oil lubricates main and connecting rod bearings, valve lifters, camshafts, and auxiliary mechanisms. Maintaining stable pressure prevents seizure, premature wear, and overheating of internal parts. In engines equipped with variable timing or MultiAir systems, the pump also supports the operation of auxiliary hydraulic systems. Insufficient oil pressure, even temporarily, can cause serious and irreversible engine damage.

Brand and model on which the part is mounted

The oil pump with OE code 55195304 is mounted on numerous FCA group models with 1.4 FIRE gasoline engines and their evolutions, both naturally aspirated and turbocharged versions. The main compatible models include:

Fiat:

• Panda
• Panda Van
• 500
• 500C
• 500L
• Doblò (Bus/Cargo/MPV)
• Idea
• Fiorino
• Punto
• Grande Punto
• Punto Evo
• Palio
• Bravo
• Linea
• Seicento
• Siena
• Stilo
• Strada
• Tipo
• Qubo

Alfa Romeo:

• MiTo

Lancia:

• Ypsilon
• Musa

DIPA recommends always verifying compatibility based on the specific engine code and chassis number.

Defects and causes

The oil pump can experience progressive or sudden failures, with serious consequences for engine mechanics. The main defects and their causes include:

• Gear wear: caused by contaminated, insufficient, or low-quality oil
• Seizure blockage: caused by lack of lubrication at startup or sludge buildup
• Stuck overpressure valve: risking excessive pressure and seal damage
• Oil leaks at the base of the pick-up tube: due to worn gaskets or incorrect installation
• Metallic noises or knocking: due to insufficient pressure or delayed lubrication during cold start

The pump can suffer indirect damage following timing belt breakage or the presence of metal debris due to internal engine failures.

Final conclusions

The oil pump with OE code 55195304 is a vital component for the reliability and longevity of 1.4 gasoline engines from Fiat, Alfa Romeo, and Lancia. Its function of continuous and controlled supply of lubricating oil protects all internal engine parts from wear and overheating. Timely replacement of the pump in case of symptoms or during engine overhaul is essential to prevent serious damage.

DIPA supplies the component in a new version, ready for installation, with warranty and compatibility on all affected models. Request availability of spare parts in stock for quick replacements and reduced vehicle downtime.