US Marine Tachometer | Genuine Used Part

🔧 Product Description

Genuine US Marine Analogue Tachometer

A genuine US Marine dashboard tachometer used on selected Bayliner, Force and US Marine boat packages. No factory number is supplied, so exact RPM range, pulse calibration and supersession are controlled by the markings on the gauge face and rear selector.

⚙️ Key Features

• Genuine US Marine instrument
• Analogue engine-speed display
• Boat-builder dashboard styling
• Electrical pulse input
• Suitable for restoration of a matching US Marine panel

🚤 Compatibility

• US Marine and Bayliner dashboards
• Force and Mercury outboards where the pulse setting matches
• Petrol sterndrive packages where the cylinder setting matches

🔌 Function

The gauge counts ignition or alternator pulses and converts their frequency into engine RPM.

⚠️ Common Signs of Failure

• Needle remains at zero
• RPM reads high or low
• Selector setting is incorrect
• Signal wire or rectifier circuit is faulty
• Needle jumps
• Lens or backlight fails

🔄 Supersession & Cross Reference

OEM Supersession Chain

• No factory number supplied
• No direct supersession can be verified
• Rear label, RPM scale and selector positions control identification

OEM / Related Numbers

• Related Faria and Teleflex US Marine gauge families
• SE9714 US Marine speedometer
• Related Force / Mercury tachometer signal wiring
• Related mounting bracket and illumination

Aftermarket / Verified Equivalents

• Faria selectable outboard or sterndrive tachometer - functional replacement when scale and pulse setting match
• Sierra / Teleflex selectable tachometer - functional replacement
• No replacement is guaranteed to match the original US Marine face

📦 Condition

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