Keep your Mercury running like new with this genuine **HOSE, THERMOSTAT HOUSING TO FLUID COOLER**. Built to the same exacting standards as your original equipment for worry-free boating.

Precision-engineered for Mercury outboards, this housing assembly ensures reliable operation across all engine RPM ranges. Part number 16012 is manufactured to exact Mercury Marine factory specifications for precision installation and optimal performance. Constructed from premium marine-grade materials designed to withstand harsh saltwater and freshwater environments.

Factory parts exist for a reason – they work. Part 16012 undergoes rigorous Mercury Marine quality testing that aftermarket manufacturers skip. The result? Reliable performance season after season.

FITS: 4-383HP MERCRUISER

• Fits MERCRUISER 4-383HP engines
• Compatible with 9 different HP configurations
• Covers 24 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

4HP Models

• 4HP OUTBOARD (Mercruiser): 0B773243-0D714106, 0D714107-0F000877, 0F000878-0F601126, 0B775130-0D714369, 0D714370-0F001219, 0F001220-0F601126

5HP Models

• 5HP OUTBOARD (Mercruiser): 0B774445-0F600999, 0B522506-0B788151, 0B773740-0F600999, 0B514627-0F775199, 0B525982-0F600999, 0B788197-0F024999

175HP Models

• 175HP OUTBOARD (Mercruiser): 0B527955-0B773242

200HP Models

• 200HP OUTBOARD (Mercruiser): 0B525982-0B774444

205HP Models

• 205HP OUTBOARD (Mercruiser): 0B527955-0B775129

230HP Models

• 230HP MIE (Mercruiser): 0B522506-0B788151
• 230HP OUTBOARD (Mercruiser): 0B525982-0B773739

260HP Models

• 260HP OUTBOARD (Mercruiser): 0B525982-0B773739, 0B525982-0B773304, 0B522506-0B788196

350HP Models

• 350HP MAG (Mercruiser): 0D505450-0K040399
• 350HP OUTBOARD (Mercruiser): 0B525982-0F600999, 0F215561-0F820706

383HP Models

• 383HP INBOARD (Mercruiser)

Need help finding your serial number? Check our serial number location guide for step-by-step instructions on locating it on your engine.

Not sure if part 16012 fits your engine? Try our parts finder tool – it’s quick and easy. Need expert help? Contact us using the buttons at the bottom of this page – text, call, or email, whatever works best for you.

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