Gear Lube Adapter | Sierra 18-9794
Gear Lube Adapter | Sierra 18-9794
Sierra
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Gear Lube Adapter | Sierra 18-9794
Gear Lube Adapter | Sierra 18-9794
Connects your domestic gear lube pump to metric 8 x 1.25 threaded gearcases found on Nissan, Honda, Tohatsu, and Yamaha outboards. Works seamlessly with Sierra quart pumps and lower unit fill tubes. A direct replacement for Mercury 91-883704K03 and Mallory 9-81003, this adapter eliminates the need for workarounds when servicing outboard motors.
- Gear lube adapter fitting
- Threads fit Nissan, Yamaha, Honda, and Tohatsu gearcases
- For use with Sierra quart pumps or lower unit fill tubes
- Replaces Mercury 91-883704K03
- Replaces Mallory 9-81003
! Compatibility references are provided for informational purposes only and do not constitute a fitment guarantee. Part numbers, application listings, and "replaces" cross-references are based on manufacturer data and are intended as a starting point for identification — not a guarantee of fit for your specific engine, hull, or installation.
Buyer is solely responsible for verifying compatibility with their engine model, serial number, model year, and trim configuration before purchase. If you are unsure whether this part fits your application, contact MacombMarineParts.com before you buy — we're available via text, email, or online chat to help verify compatibility for your specific application.
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