1556448 Nozzle | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta nozzle is a fuel-injection or fuel-return service component used in the fuel-injection system. It is manufactured to the original Volvo Penta dimensions and interface requirements so fuel is transferred or metered through the intended high-pressure or return path. In service, it meters and atomises fuel into the combustion chamber at the specified spray pattern and opening pressure. Fitment is controlled by the exact engine or product configuration and serialised parts list; confirm OEM number 1556448 against the installed assembly before ordering.

🚤 Compatibility

Typically suits:

• Volvo Penta TD164KAE

• Engine Family: TD

⚙️ Key Features

• Genuine Volvo Penta OEM part number 1556448
• System group: Fuel System
• Net weight: 0.059 kg
• Fits the TD164KAE marine diesel engine
• Supplied as an individual nozzle

🔌 Function

The nozzle atomises pressurised diesel into a fine spray pattern as it enters the combustion chamber, controlling the timing and shape of each injection event. Correct spray quality is essential for clean, efficient combustion and stable engine performance.

⚠️ Common Signs of Failure

• Rough idle, misfiring or uneven running under load
• Black or excessive exhaust smoke and higher fuel consumption
• Hard starting or loss of power at higher engine speeds
• Fuel leakage or weeping around the nozzle body
• Knocking or noisy combustion caused by a distorted or dribbling spray pattern

🛠️ Service Notes

• Work scrupulously clean — a nozzle is a precision component with fine machined orifices, and grit carried in on a fingertip or a rag is enough to ruin it
• Never poke, ream or wire-brush the holes or the seat; if a nozzle is blocked or its spray pattern is disturbed, renew it
• Cap or plug the open fuel or oil way while the nozzle is out so nothing can drop into the passage
• Fit new sealing washers, seals or O-rings, clean the seat in the housing and check that seat is undamaged before the nozzle goes back
• Tighten to the figure and sequence given in the workshop manual for your engine; a nozzle pulled down unevenly or over-tightened will distort and leak

🔄 Supersession & Cross Reference

Other-Brand OEM Numbers

• Bosch: 0 433 271 647
• Bosch: DLLA 146 S 1250

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging