875783 Thermostat Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta thermostat kit with a 60°C opening temperature, for production order 18374 onwards, from the Cooling System group. It weighs 0.061 kg, is listed for 3 applications on MD series engines and supersedes part number 838286. The production-order breakpoint is what matters here: the other 60°C kit in this run, 875796, carries no production breakpoint and covers MD, MB, AQ and BB engines, so the production number is what separates the two.

🚤 Compatibility

Typically suits:

• Volvo Penta MD5A
• Volvo Penta MD5B
• Volvo Penta MD5C

• Engine Family: MD
• Serial Range: 60°C, MO 18374-

⚙️ Key Features

• 60°C opening temperature
• For production order 18374 onwards
• 0.061 kg
• Listed for 3 applications on MD series engines
• Supersedes 838286

🔌 Function

Holds the coolant in the engine until it reaches 60°C, then opens to admit flow through the cooling circuit and hold the running temperature.

⚠️ Common Signs of Failure

• Engine slow to warm or never reaching normal running temperature
• Overheating shortly after start-up with the thermostat stuck shut
• Temperature reading hunting up and down in normal running
• Thermostat that will not open when tested in hot water
• Corrosion, scale or a broken frame on the old unit

🛠️ Service Notes

• Check the production number before ordering — this kit is for production order 18374 onwards and 875796 is the other 60°C kit in this run
• Renew the sealing gasket or ring with it and fit the thermostat the right way up

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 875783 → Supersedes 838286

Aftermarket / Verified Equivalents

• Crom: 115177
• Orbitrade: 15783
• Recmar: REC875783

📦 Condition

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