1543933 Nozzle | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta injector nozzle from the fuel system group, serving as the final metering and atomising element of the fuel injector on the 162-series marine and industrial diesel engines. It is fitted to TAMD162, TID162 and TWD1620G engines, where nozzle condition directly governs combustion quality, power delivery and exhaust smoke. Supplied as a single nozzle, so order the quantity required for a full set of cylinders.

🚤 Compatibility

Typically suits:

• Volvo Penta TWD1620G
• Volvo Penta TID162AG
• Volvo Penta TID162AGP
• Volvo Penta TID162AP
• Volvo Penta TID162APB
• Volvo Penta TAMD162C-C
• Volvo Penta TAMD162A
• Volvo Penta TAMD162C
• Volvo Penta TAMD162C-B

• Engine Family: TWD, TID, TAMD

⚙️ Key Features

• Precision multi-hole injector nozzle for mechanical diesel fuel-injection equipment
• Direct Volvo Penta replacement reference for 1543933
• Injector opening pressure and spray pattern must be set to the applicable engine specification
• Engine type: Volvo Penta 16-litre six-cylinder diesel

🔌 Function

The nozzle atomises high-pressure diesel fuel and sprays it into the combustion chamber in a precise pattern and quantity for each injection event. Correct spray formation is essential for clean ignition, efficient combustion and rated power output.

⚠️ Common Signs of Failure

• Black or smoky exhaust and a strong diesel smell under load
• Rough idle, misfire or uneven running on one or more cylinders
• Loss of power, poor throttle response and increased fuel consumption
• Diesel knock or knocking noise from a single cylinder
• Hard starting, or fuel dilution and dripping caused by a nozzle that no longer seals

🛠️ 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

OEM / Related Numbers

• 1543753 - related Volvo nozzle reference using the same DLLA140S1054 designation
• 0 433 271 756 - Bosch reference

Other-Brand OEM Numbers

• Bosch: 0 433 271 756 / DLLA140S1054
• Bosch: DLLA140S 1054

Aftermarket / Verified Equivalents

• Seven Diesel: 713351C

📦 Condition

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