Dont gamble with your Mercurys reliability. This genuine GASKET SET ensures long-term performance and protects your investment in quality marine power.
Factory-built to exact Mercury Marine specifications, this gasket ensures reliable operation across all engine RPM ranges. Part number 78028A78 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.
Cut-rate alternatives might look similar, but theyre not engineered to Mercurys exacting standards. Part 78028A78 delivers consistent performance because its built rightthe same way Mercury does it at the factory.
Compatible Mercury Marine Engines
FITS: 35-402HP MERCURY
- Fits MERCURY 35-402HP engines
- Compatible HP: 35HP, 402HP
- Covers 11 serial number ranges
- Configurations: Outboard
- OEM genuine Mercury Marine part
COMPLETE SERIAL NUMBER COMPATIBILITY:
35HP Models
- 35HP OUTBOARD (Mercury): 6445653-0B110788
402HP Models
- 402HP OUTBOARD (Mercury): 4860103-5556229, 7112423-7144762, 8052125-8064749, 9184451-9251455
Dont know where your serial number is? Our quick reference guide shows exactly where to find it on Mercury Marine engines.
Verification & Support
Not sure if part 78028A78 fits your engine? Try our parts finder toolits quick and easy. Need expert help? Contact us using the buttons at the bottom of this pagetext, call, or email, whatever works best for you
Four decades of marine parts experience. Low prices, fast shippingmost orders placed by 1pm ship today.

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