8M0068784 Mercury MerCruiser Oil Pressure Sensor | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Oil Pressure Sender Assembly - Part Number: 8M0068784

A genuine Quicksilver oil pressure sender assembly for selected MerCruiser petrol engines. This sender provides oil pressure signal to the gauge system and replaces earlier MerCruiser oil pressure sender references including 34623, 90806 and 815425T.

⚙️ Key Features

• Genuine Quicksilver OEM oil pressure sender

• Correct Mercury part number 8M0068784

• Supersedes multiple earlier MerCruiser oil pressure sender references

• Used on selected MerCruiser 3.0L, 4.3L, 5.0L, 5.7L, 6.2L, 7.4L, 8.2L and high-output petrol applications where specified

• Analogue sender-style component, distinct from SmartCraft pressure sensor 881879T11

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 8M0068784 → Supersedes 815425T

• 815425T → Supersedes 815425

• 8M0068784 → Supersedes 90806 / 90806A1

• 8M0068784 → Supersedes 34623

OEM / Related Numbers:

• 8M0068784

• 34623

• 90806

• 90806A1

• 815425

• 815425T

• 87-815425T

• 881879T11 related SmartCraft pressure sensor, separate application

• 37293T related dual-station oil pressure sender option

Aftermarket / Verified Equivalents:

• Sierra: 18-5899

• Volvo Penta / OMC cross-reference: 3857532 on selected non-Mercury applications

• Crusader: 700425 related cross-reference

🚤 Compatibility

Commonly used on:

• MerCruiser petrol engine oil pressure gauge sender applications

• Older MerCruiser analogue gauge systems using sender 34623 / 815425T / 8M0068784

Typically suits:

• Engine models:

• MerCruiser 3.0L GM 181 I/L4 oil pressure sender applications where 8M0068784 is specified

• MerCruiser 4.3L Gen II 2BBL GM 262 V6 oil pressure sender applications

• MerCruiser 4.3LX Gen II 4BBL GM 262 V6 - serial 0D714370 to 0F001219, wiring harness / electrical component applications where 8M0068784 is specified

• MerCruiser 4.3L Gen+ GM 262 V6 oil pressure sender applications where specified

• MerCruiser 5.0L GM 305 V8 oil pressure sender applications where specified

• MerCruiser 5.7L GM 350 V8 oil pressure sender applications where specified

• MerCruiser 350 MAG petrol engine oil pressure sender applications where specified

• MerCruiser 6.2L petrol engine oil pressure sender applications where specified

• MerCruiser 7.4L / 454 petrol engine oil pressure sender applications where specified

• MerCruiser 8.1L / 496 MAG petrol engine oil pressure sender applications where specified

• MerCruiser 8.2L petrol engine oil pressure sender applications where specified

• MerCruiser high-output petrol engines using analogue oil pressure sender 8M0068784

• OMC / Volvo Penta / Crusader applications using equivalent sender references where specified by their own parts catalogues

• Engine Type: MerCruiser petrol sterndrive and inboard engines

• System Type: Oil pressure gauge sender / analogue engine monitoring

• Fitment Note: Verify sender type against the gauge system, as 8M0068784 sender applications differ from SmartCraft pressure sensor 881879T11 applications

🔌 Function

The sender converts engine oil pressure into a gauge signal so the operator can monitor lubrication system pressure.

Common signs of failure:

• Oil pressure gauge reads incorrectly

• Gauge reads zero despite verified oil pressure

• Gauge fluctuates erratically

• Oil pressure reading does not match mechanical test gauge

• Sender leakage or terminal corrosion

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging