66952 Sterling Speedometer | Genuine Used Part

🔧 Product Description

Sierra Teleflex Sterling 65 MPH Marine Speedometer - Part Number: 66952

A genuine used Sierra / Teleflex Sterling-series mechanical boat speedometer.

The gauge uses a pitot pickup and pressure tube to display boat speed up to approximately 65 MPH. It features the Sterling-series brushed-silver face, dark pointer and stainless-style bezel.

⚙️ Key Features

• Genuine Sierra / Teleflex Sterling speedometer
• Part number 66952
• Approximately 10-65 MPH range
• Mechanical pitot-pressure operation
• Large marine dashboard format
• Illuminated Sterling-series face

🚤 Compatibility

Commonly used on

• Outboard boats
• Sterndrive boats
• Inboard boats with a transom-mounted pitot pickup
• Dashboards fitted with Sterling-series instrumentation
• Speed Range: Approximately 10-65 MPH
• Gauge Type: Mechanical pitot speedometer
• Electrical Requirement: 12V only for illumination
• Fitment Requirement: Requires a clear pitot pickup and leak-free pressure hose

🔌 Function

Boat movement creates pressure at the pitot pickup. That pressure is transmitted through tubing to the gauge mechanism and converted into a speed reading.

⚠️ Common Signs of Failure

• Gauge remains at zero
• Speed reads low because the pickup is blocked
• Needle pulses because the hose is leaking
• Water has entered the gauge
• Lens or lighting is damaged

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 66952 original Teleflex / Sierra Sterling speedometer reference
• Later Sterling speedometer kits may use different part numbers depending on range and whether tubing is included

OEM / Related Numbers

• 66952
• Related Sterling 65 MPH speedometer kit 63475P
• Related pitot pickup and pressure tubing
• Related dashboard illumination socket

Aftermarket / Verified Equivalents

• Sierra 63475P Sterling 65 MPH pitot speedometer kit
• Sierra 63475PH Sterling 65 MPH head-only speedometer
• Other 65 MPH pitot-type marine speedometers with a compatible cut-out
• GPS speedometers are an alternative but require electrical power and a GPS receiver

📦 Condition

• Genuine used part
• Removed from operating dashboard where applicable
• In good working condition unless otherwise stated
• Pitot pickup and tubing are not included unless specifically stated