23040864 Thermostat Housing | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta thermostat housing for engines with EGR, weighing 3.547 kg and listed for ten applications across TAD and TADH series engines. The EGR specification is critical, since non-EGR engines use different housings. It supersedes 22569348.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD840GE
• Volvo Penta TAD841-43GE
• Volvo Penta TAD853VE
• Volvo Penta TAD851-53GE
• Volvo Penta TAD880-84VE
• Volvo Penta TAD840-43VE
• Volvo Penta TAD850-52VE
• Volvo Penta TAD870-73VE
• Volvo Penta TAD840GE-B
• Volvo Penta TADH880-84VE

• Engine Family: TAD, TADH

⚙️ Key Features

• For engines with EGR
• 3.547 kg
• Listed for ten applications across TAD and TADH series engines
• Supersedes 22569348
• Non-EGR engines take a different housing

🔌 Function

Houses the thermostat and forms the coolant junction at the front of the engine, directing flow to the radiator or back around the bypass as the engine warms.

⚠️ Common Signs of Failure

• Coolant weeping or crusted deposits around the housing joint
• Engine slow to warm up, or overheating in service
• Temperature gauge swinging up and down instead of holding steady
• Housing found cracked, or the sealing face corroded and pitted
• Heavy scale or corrosion inside the housing on strip-down

🛠️ Service Notes

• Renew the thermostat, its seal and the housing gasket at the same time
• Confirm the engine is the EGR build before ordering - this is the detail that decides which housing fits
• Flush the cooling system and check the coolant's inhibitor condition, since corroded housings usually mean tired coolant

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 23040864 → Supersedes 22569348

OEM / Related Numbers

• 22569348 earlier number superseded by this part

📦 Condition

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