1546305 Piston Cooling Valve | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta piston cooling valve is an engine-lubrication and piston-cooling service component used in the oil-filter housing and piston-cooling circuit. It is manufactured to the original Volvo Penta dimensions and interface requirements so calibrated oil flow and pressure are maintained through the lubricating circuit. In service, it controls oil delivery to the piston-cooling circuit, opening at the specified pressure so the underside of each piston receives cooling oil. Fitment is controlled by the exact engine or product configuration and serialised parts list; confirm OEM number 1546305 against the installed assembly before ordering.

🚤 Compatibility

• Engine Family: D, TWD, TAD

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta OEM part number 1546305
• System group: Lubricating and Oil System
• Net weight: 0.061 kg
• Fits D12D marine engines and TWD1240VE, TAD1240GE-TAD1252VE industrial and genset engines
• Pressure-controlled valve serving the piston cooling oil circuit

🔌 Function

The piston cooling valve opens at a set oil pressure to feed the piston cooling nozzles, spraying lubricating oil onto the underside of the pistons to carry heat away. This protects the pistons and rings from thermal overload under high load and helps maintain stable oil pressure elsewhere in the engine.

⚠️ Common Signs of Failure

• Low or unstable engine oil pressure readings
• Piston, ring or cylinder liner overheating and scuffing damage
• Valve sticking open or closed due to debris or varnish build-up
• Oil leakage past a worn or damaged valve seat
• Increased oil consumption or blow-by accompanied by high piston temperatures

🛠️ Service Notes

• This valve serves both the D12D marine engine and the TWD1240VE/TAD1240-1252 genset and industrial variants - check the exact engine designation rather than assuming it's marine-only
• When a piston shows heat damage with no other obvious cause, this valve sticking shut is worth checking first, since a blocked circuit here gives little warning before the piston fails
• Inspect the oil and filter for debris when the valve is out - contamination rather than wear is the usual reason these stick

🔄 Supersession & Cross Reference

Aftermarket / Verified Equivalents

• Olsson Parts: 66559

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D12D-A MG, D12D-A MH, D12D-A MP, D12D-B MH, D12D-B MP, D12D-C MH, D12D-C MP, D12D-D MP, D12D-E MG, D12D-E MH, D12D-E MP, D12D-F MP, D12D-G MH, D12D-G MP, D12D-H MP
• Volvo Penta TAD1241GE, TAD1241VE, TAD1241-42VE
• Volvo Penta TAD1242GE, TAD1242VE
• Volvo Penta TAD1250VE, TAD1250-52VE
• Volvo Penta TAD1240GE
• Volvo Penta TAD1251VE
• Volvo Penta TAD1252VE
• Volvo Penta TWD1240VE