Protect your Mercury investment with genuine OEM parts that last. This **REED BLOCK ASSEMBLY | Component Of Powerhead Assembly [800-818154A31] OR [800-818154A43]** delivers years of reliable service – not just one season like cheap alternatives.

Factory-built to exact Mercury Marine specifications, this component ensures reliable operation across all engine RPM ranges. Part number 855952T3 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 855952T3 undergoes rigorous Mercury Marine quality testing that aftermarket manufacturers skip. The result? Reliable performance season after season.

FITS: 140-210HP MARINER, MERCURY, SPORTJET

• Fits MARINER, MERCURY, SPORTJET 140-210HP engines
• Compatible HP: 140HP, 175HP, 200HP, 210HP
• Covers 24 serial number ranges
• Configurations: Jet Drive, Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

140HP Models

• 140HP JET (Mariner): 0G960500-0T178499
• 140HP JET (Mercury): 0G960500-0T178499

175HP Models

• 175HP JET (Sportjet): 0E369300-0E433153, 0E369300-0E433153

200HP Models

• 200HP DFI JET DRIVE (Sportjet): 0E384500-0E435741, 0E379931-0E428850, 0M954922-0M964698
• 200HP JET (Sportjet): 0E384500-0E433351, 0E379931-0E423075

210HP Models

• 210HP CARB JET DRIVE (Sportjet): 0E384500-0E433153, 0E379931-0E433153
• 210HP JET (Sportjet): 0E373939-0E426999, 0E370718-0E426999

HP Models

• HP OUTBOARD (Mariner): 0G960500-1B226999, 0G960500-0T178499, 0T178500-0T800999, 0T801000-1B226999, 0T178500-1B226999, 0G960500-0T408999
• HP OUTBOARD (Mercury): 0G960500-0T178499, 0T178500-0T800999, 0T801000-1B226999, 0T178500-1B226999, 0G960500-0T408999

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

Want to verify compatibility for part 855952T3? Use our parts finder tool for instant confirmation. Still have questions? No problem – use the contact buttons at the bottom of this page to reach us by text, call, or email.

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