Lower Unit Drain Plug Kit – Fits Mercury/MerCruiser (Replaces 8M0058389, 79953Q04) 90-175HP and 18-8003-2

and 18-8003-2

Is modification required for all engines

Includes all required seals for a complete upper driveshaft housing service

This bracket is made from 304 stainless steel

Other signs include a weak water stream from the tell-tale outlet

Lower Unit Drain Plug Kit – Fits Mercury/MerCruiser (Replaces 8M0058389, 79953Q04) 90-175HP and 18-8003-2Product Details This Sea Sierra Lower Unit Drain Plug Kit is designed for Mercury and MerCruiser lower units that utilize a 3 8 16 threaded drain fill screw. It is broadly compatible with most Mercury & Mariner outboard models, excluding the Verado series, and fits a wide range of MerCruiser sterndrives, including MC 1, Alpha One (Gen I & II), TR, and TRS models. The kit serves as a direct interchange for several part numbers, including Mercury