855727 Thermostat | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta cooling system thermostat weighing 0.059 kg. It supersedes part number 876052, which was catalogued earlier as a thermostat kit, so the loose thermostat now takes the place of the kit that number covered.

⚙️ Key Features

• 0.059 kg
• Supersedes 876052
• Previously catalogued as a thermostat kit
• Cooling system thermostat

🔌 Function

Opens and closes with coolant temperature to hold the engine at its working heat, staying shut while it warms and opening to let coolant through once it is up to temperature.

⚠️ Common Signs of Failure

• Engine slow to warm up, or never reaching normal temperature
• Overheating shortly after start-up, with the thermostat stuck shut
• Temperature gauge swinging up and down in steady running
• Thermostat found seized, corroded or fouled with scale on removal

🛠️ Service Notes

• Because it replaces a number listed as a kit, check whether your job also needs the gasket or seal that came with the old kit rather than assuming it is in the box
• Test the old one in hot water before condemning the rest of the cooling system - a stuck thermostat imitates far more expensive faults
• Fit it the right way round, with the sensing element facing the engine side

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 855727 → Supersedes 876052 → Supersedes 875782 → Supersedes 841539 → Supersedes 419044 → Supersedes 403335

OEM / Related Numbers

• 876052 earlier number superseded by this part
• 875782 earlier number superseded by this part
• 841539 earlier number superseded by this part
• 419044 earlier number superseded by this part
• 403994 earlier number superseded by this part
• 403336 earlier number superseded by this part
• 403335 earlier number superseded by this part

📦 Condition

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