Your Mercury deserves better than cheap aftermarket parts that fail after one season. This genuine **TEMPERATURE SENDER, (19.50 Inch)** delivers the reliability your engine was built for.

Built to Mercury’s exacting factory standards, this component ensures reliable operation across all engine RPM ranges. Part number 78799 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.

Don’t risk your Mercury engine with untested aftermarket copies. OEM part 78799 is manufactured to Mercury Marine’s exact specifications, ensuring compatibility and performance that inferior alternatives simply can’t match.

FITS: 65-300HP MARINER, MERCURY, RACE OUTBOARD

• Fits MARINER, MERCURY, RACE OUTBOARD 65-300HP engines
• Compatible with 7 different HP configurations
• Covers 24 serial number ranges
• Configurations: Jet Drive, Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

65HP Models

• 65HP JET (Mariner): 0D283222-0G760299, 9793577-0P016999
• 65HP JET (Mercury): 0D283222-0G760299, 9793577-0P016999

70HP Models

• 70HP OUTBOARD (Mariner): 0A996142-0B240450, 0B240451-0C221999, 9483121-9506480, 9506481-9589038
• 70HP OUTBOARD (Mercury): 0A996142-0B240450, 0B240451-0C221999, 9483121-9506480, 9506481-9589038

100HP Models

• 100HP OUTBOARD (Mariner): 0A722297-0D283221, 9523034-9793576
• 100HP OUTBOARD (Mercury): 0B209468-0D283221, 9523034-9793576

115HP Models

• 115HP OUTBOARD (Mariner): 0C100000-0D283221, 9559771-9793576
• 115HP OUTBOARD (Mercury): 0C100000-0D283221, 9559771-9793576

225HP Models

• 225HP OUTBOARD (Race Outboard): 0G857000-0T429939

250HP Models

• 250HP OUTBOARD (Mariner)
• 250HP OUTBOARD (Mercury)

300HP Models

• 300HP OUTBOARD (Mercury)

Don’t know where your serial number is? Our quick reference guide shows exactly where to find it on Mercury engines.

Verify part 78799 works with your Mercury using our parts finder tool. Have questions? Reach out using the contact buttons at the bottom of this page – our team is here to help by text, call, or email.

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