866838 Pressure Sensor | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta 0 to 2 bar pressure sensor from the Instruments group, weighing 0.161 kg and listed for 27 applications across TAMD, TMD, D, TD and MD series engines. It supersedes 837782. It is the lowest-range sensor of the eight listed in this group, so check the gauge scale before ordering. Fits Volvo Penta marine diesels: TAMD61A, TAMD71B, TAMD73P-A, TAMD73WJ-A (electrical system group);

🚤 Compatibility

• Engine Family: TAMD, TMD, D, TD, MD

Full model list at the end of this description.

⚙️ Key Features

• 0 to 2 bar range
• 0.161 kg
• Listed for 27 applications across five engine series
• Supersedes 837782

🔌 Function

Converts pressure in its circuit into an electrical signal for the gauge, over a 0 to 2 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
• A reading that looks plausible but does not match a mechanical gauge

🛠️ Service Notes

• Match the sensor range to the gauge scale - the eight sensors in this group run from 0 to 2 bar up to 0 to 30 bar
• Confirm the real pressure with a mechanical gauge before condemning the sensor

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 866838 → Supersedes 837782

OEM / Related Numbers

• 837782 earlier number superseded by this part

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D7A-B TA, D7A-T, D7A-TA, D7C-B TA, D7C-TA
• Volvo Penta D5A-B TA, D5A-T, D5A-TA
• Volvo Penta TAMD122A, TAMD122A/C, TAMD122D
• Volvo Penta MD2010, MD2010B
• Volvo Penta TAMD71B, TAMD71A
• Volvo Penta TAMD102A
• Volvo Penta TAMD103A
• Volvo Penta TAMD121D
• Volvo Penta TAMD61A
• Volvo Penta TAMD62A
• Volvo Penta TAMD72A
• Volvo Penta TD520VE
• Volvo Penta TD720VE PP
• Volvo Penta TMD100C
• Volvo Penta TMD102A
• Volvo Penta TMD121C
• Volvo Penta TMD122A