895289A21 Mercury Oil Pressure Gauge | Genuine Used Part

🔧 Product Description

Genuine Mercury / Quicksilver Flagship Oil Pressure Gauge - Part Number: 79-895289A21

A genuine used Mercury / Quicksilver electrical oil-pressure gauge with a white face, black graduations and white bezel.

The gauge is designed for MerCruiser petrol engines and selected Mercury / Mariner four-stroke outboards using a compatible resistive oil-pressure sender. Part number 895289A21 supersedes earlier white gauge 859689A11.

⚙️ Key Features

• Genuine Mercury / Quicksilver oil-pressure gauge
• Correct part number 79-895289A21
• Supersedes 79-859689A11
• White face with white bezel
• Compatible with petrol marine-engine oil-pressure senders

🚤 Compatibility

Commonly used on

• MerCruiser MCM petrol sterndrive engines
• MerCruiser MIE petrol inboard engines
• Mercury / Mariner four-stroke outboards
• White Flagship Mercury dashboards

Typically suits

• Mercury / Mariner 25HP, 30HP, 40HP, 45HP and 50HP FourStroke applications where specified
• Mercury / Mariner 225HP FourStroke applications where specified
• MerCruiser four-, six- and eight-cylinder petrol engines
• Other engines whose instrument catalogue specifies 895289A21
• Electrical System: 12 volts
• Signal Type: Resistive oil-pressure sender
• Fitment Requirement: Confirm sender resistance, range, cutout and terminals

🔌 Function

The gauge displays engine oil pressure from a compatible sender, allowing the operator to identify low pressure or abnormal lubrication-system behaviour.

⚠️ Common Signs of Failure

• No pressure reading
• Gauge reads maximum with the sender disconnected
• Needle fluctuates
• Sender is faulty or incorrectly matched
• Wiring or ground is damaged

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 79-895289A21 → Supersedes 79-859689A11
• 79-859689A11 earlier white oil-pressure gauge reference

OEM / Related Numbers

• 79-895289A21
• 895289A21
• 79-859689A11
• 859689A11
• 79-895289A01 related black-face version
• 79-895289A41 related white-face chrome-bezel version
• Compatible Mercury oil-pressure sender is required
• Typical marine oil-pressure scale is approximately 0-80 PSI / 0-5 bar

Aftermarket / Verified Equivalents

• Faria Beede 0-80 PSI marine oil-pressure gauge
• Sierra 0-80 PSI marine oil-pressure gauge
• Veethree 0-80 PSI marine oil-pressure gauge
• VDO gauge and sender set
• Sender resistance must match the replacement instrument

📦 Condition

• Genuine used part
• Removed from running engine or vessel where applicable
• In good working condition unless otherwise stated