866839 Sensor | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta 0 to 30 bar sensor from the Instruments group, weighing 0.159 kg and listed for 40 applications across TAMD, D, TMD and MD series engines. It supersedes 862253, which was catalogued earlier under a Swedish name for a reverse-gear pressure sensor. Sensor 866840 is the other 0 to 30 bar unit listed here and replaced an oil pressure sensor number, so the circuit each one serves is what separates the pair.

🚤 Compatibility

• Engine Family: TAMD, D, TMD, MD

Full model list at the end of this description.

⚙️ Key Features

• 0 to 30 bar range
• 0.159 kg
• Listed for 40 applications across four engine series
• Supersedes 862253, catalogued earlier as a reverse-gear pressure sensor

🔌 Function

Converts pressure in its circuit into an electrical signal for the gauge, over a 0 to 30 bar range.

⚠️ Common Signs of Failure

• Gauge reading zero, pegged or wandering with pressure confirmed good
• Fluid weeping from the sensor body or its thread
• Corroded or green terminals at the connector
• Readings that change when the connector or harness is moved
• Warning lamp on with no fault found on a mechanical gauge

🛠️ Service Notes

• Confirm the real pressure with a mechanical gauge before condemning the sensor
• Two 0 to 30 bar sensors are listed here - establish whether your gauge reads the transmission or the engine oil circuit before ordering

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 866839 → Supersedes 862253

OEM / Related Numbers

• 862253 earlier number superseded by this part

Aftermarket / Verified Equivalents

• Continental/VDO 360-081-054-002Z

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TAMD122A, TAMD122A/C, TAMD122D, TAMD122P-A, TAMD122P-B, TAMD122P-C
• Volvo Penta TAMD74P-A, TAMD74P-B, TAMD74C-A, TAMD74C-B, TAMD74L-A, TAMD74L-B
• Volvo Penta D12C-A MP, D12D-A MH, D12D-A MP, D12D-C MP, D12D-D MP
• Volvo Penta TAMD162C-C, TAMD162A, TAMD162B, TAMD162C, TAMD162C-B
• Volvo Penta D5A-B TA, D5A-T, D5A-TA
• Volvo Penta TAMD165A, TAMD165C, TAMD165P
• Volvo Penta MD2010, MD2010B
• Volvo Penta TAMD163A-A, TAMD163P-A
• Volvo Penta TAMD63L-A, TAMD63P-A
• Volvo Penta TAMD73P-A, TAMD73WJ-A
• Volvo Penta TAMD121D
• Volvo Penta TAMD72P-A
• Volvo Penta TAMD75P-A
• Volvo Penta TMD121C