21091609 Pressure Sensor | Genuine Volvo Penta Part

🔧 Product Description

Brand-new genuine Volvo Penta engine-oil pressure sensor introduced at serial number 1096837 on the D5A/D7A engine family. It converts lubricating-system pressure into an electrical signal for the instrument/control system and replaces the earlier sensor arrangement used through serial number 1096837.

🚤 Compatibility

Typically suits:

• Volvo Penta D5A-B TA
• Volvo Penta D5A-T
• Volvo Penta D5A-TA
• Volvo Penta TD720VE PP
• Volvo Penta TD420VE
• Volvo Penta TD520VE
• Volvo Penta D7A-B TA
• Volvo Penta D7A-T
• Volvo Penta D7A-TA
• Volvo Penta D7C-B TA
• Volvo Penta D7C-TA
• Volvo Penta TAD620VE
• Volvo Penta TAD720VE
• Volvo Penta TAD721VE
• Volvo Penta TAD722VE
• Volvo Penta TAD420VE
• Volvo Penta TAD520VE
• Volvo Penta MD2010
• Volvo Penta MD2010B

• Engine Family: D, TD, TAD, MD
• Serial Range: SN1096837-

⚙️ Key Features

• Calibrated oil-pressure sender for D5A/D7A engines
• Applies from engine serial number 1096837 onward
• Correct thread, pressure range and electrical characteristic
• Provides gauge/alarm or control-system pressure input
• Sensor only; sealing component and wiring connector are separate unless supplied
• Engine type: Volvo Penta D5/D7 industrial diesel

🔌 Function

Measures engine-oil pressure and supplies the corresponding signal to the gauge, alarm circuit or electronic monitoring system.

⚠️ Common Signs of Failure

• Oil-pressure reading fixed at zero or full scale
• Intermittent low-pressure alarm with verified mechanical pressure
• Oil leakage through the sensor body or thread
• Corroded terminal or broken signal wire
• Reading that disagrees with a mechanical pressure gauge

🛠️ Service Notes

• Fit into a clean, dry, undamaged port with a new sealing washer or O-ring, start it by hand, and tighten only to the figure in the workshop manual — overtightening distorts the sensing element and shifts the reading
• Do not wrap sealing tape or smear jointing compound over the sensing face or into the port; shreds of tape travel into the system and a partly blocked port reads low
• Handle the sensor by its body: never lever it round by the connector or the wiring, and do not knock or drop it, since a sensing element is easily damaged without any external sign
• Mate the electrical connector clean and dry and push it fully home until it locks, then clip the harness so it cannot hang or pull on the sensor
• Before condemning a sensor, satisfy yourself the pressure it reports is genuinely wrong — an implausible reading is often a correct report of a real fault; after fitting, check the reading is stable and sensible cold and warm and that the sensor is dry under pressure

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21091609 → Supersedes 888853

OEM / Related Numbers

• 888853 earlier number superseded by this part

Other-Brand OEM Numbers

• VOE21091609

📦 Condition

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