20521450 Piston Cooling Jet | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta piston cooling jet is an OEM service component used in the Piston Cooling Oil Jet. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo Penta 16-litre TAD16 industrial diesel application. Technical identification: Calibrated piston-cooling jet fitted at the cylinder-block oil gallery; schematic key 48 and installed with O-ring 976012. In service, it directs a calibrated jet of engine oil onto the underside of the piston for cooling and lubrication. Selection must be confirmed by OEM part number 20521450, the exact model/product number, serial number and installed assembly configuration.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD1650VE

• Engine Family: TAD

⚙️ Key Features

• Genuine Volvo Penta OEM piston cooling jet
• OEM part number 20521450
• Technical distinction: Calibrated piston-cooling jet fitted at the cylinder-block oil gallery; schematic key 48 and installed with O-ring 976012
• 6 used per assembly

🔌 Function

Directs a calibrated jet of engine oil onto the underside of the piston for cooling and lubrication. Install without twist or preload, renew the specified seals/clamps, preserve the original routing and pressure- or leak-test the circuit after assembly.

⚠️ Common Signs of Failure

• A knocking or piston-slap noise that worsens as the engine warms
• Low oil pressure at idle where the jet or its valve is stuck open
• Blue smoke and rising oil consumption from a scuffed or overheated piston
• On strip-down, the nozzle bent, blocked with carbon, or aimed off the piston crown
• Scoring and heat discolouration on the piston underside and skirt

🛠️ Service Notes

• The jet is installed with O-ring 976012 - renew it whenever the jet is disturbed
• Check the nozzle is clear and correctly aimed after fitting; a bent jet will cook the piston it is meant to cool

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 976012 O-ring
• 966378 flange screw
• 20574700 oil-control valve
• 21452473 oil-control valve
• 21596642 oil-control valve

📦 Condition

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