3853799 Thermostat | Genuine Volvo Penta Part

🔧 Product Description

The thermostat Volvo Penta lists for the 3.0GLP-C, D, E and J petrol engines, weighing 0.048 kg and listed for 27 applications across the 3.0GL and 3.0GS ranges. No opening temperature is published against this part, so it is ordered by number. The injected 3.0GXi-J and GXiC-J take thermostat 21148403 instead, and its O-ring, 3856537, is common to both.

🚤 Compatibility

Full model list at the end of this description.

⚙️ Key Features

• Thermostat for the 3.0GLP-C, D, E and J
• 0.048 kg
• 27 applications across the 3.0GL and 3.0GS ranges
• No opening temperature published, so order by part number
• 21148403 is the thermostat for the 3.0GXi-J and GXiC-J
• Genuine Volvo Penta Part, designed and manufactured to ensure original fit, safety and performance
• Role: Thermostat
• Fits: 3.0GLP-C/D/E/J

🔌 Function

Controls coolant flow by opening at its set temperature, letting the engine warm up quickly and then holding it at its working temperature.

⚠️ Common Signs of Failure

• Engine slow to warm up, or never reaching temperature
• Overheating soon after start-up where the thermostat has stuck shut
• Temperature gauge swinging up and down in normal running
• Thermostat found corroded, furred or jammed part open
• Heater or hot water circuit lukewarm

🛠️ Service Notes

• Fit the thermostat the correct way round with its jiggle pin or vent uppermost, and renew O-ring 3856537 at the same time
• A thermostat fitted only because the engine overheated is rarely the whole story, so check the raw water side and the impeller too
• Always refer to the operator's manual for the recommended maintenance and service intervals for your engine and drive

🔄 Supersession & Cross Reference

Aftermarket / Verified Equivalents

• Sierra: 18-3621
• GLM: 13070

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta 3.0GLM-A, 3.0GLM-B, 3.0GLM-C, 3.0GLMMDA, 3.0GLP-A, 3.0GLP-B, 3.0GLP-C, 3.0GLP-D, 3.0GLP-E, 3.0GLP-J, 3.0GLP-N, 3.0GSM-A, 3.0GSM-B, 3.0GSMBYMCE, 3.0GSM-C, 3.0GSMLKD, 3.0GSMNCS, 3.0GSMWTR, 3.0GSP-A, 3.0GSP-B, 3.0GSPBYMCE, 3.0GSP-C, 3.0GSPEFS, 3.0GSPLKD, 3.0GSPMDA, 3.0GSPNCS, 3.0GSPWTR