1 years
China
Certification: ISO9001 factory production; CE documents available upon request
Real Product Photos: Lower casing full exterior view, sealing‑surface detail, outboard lower‑unit assembly reference picture
This heavy‑duty aftermarket short‑shaft lower casing serves as a practical direct‑fit housing for Yamaha 63V and 63W‑series 9.9HP and 15HP two‑stroke marine outboard motors. It matches OEM part number 63V‑45300‑03‑4D.
It gets cast from high‑strength marine‑grade aluminum alloy. This gearcase housing delivers strong structural rigidity and decent impact resistance. It also holds reliable salt‑water corrosion resistance, so it can endure long‑term submersion and spray within real‑world boating environments.
This assembly forms the outer shell of the outboard lower unit. It encloses forward‑reverse gear sets, propeller shaft, water pump parts and related internal transmission components. It maintains proper alignment for all moving parts while keeping gear‑oil sealed inside the gearcase during on‑water operation.
Produced in strict compliance with original OEM specifications, this casing keeps accurate mounting hole layout and consistent sealing‑surface flatness. It resolves frequent lower‑unit troubles such as cracked housing, persistent gear‑oil leaks and misaligned component seating. These issues usually develop from underwater collision damage or long‑term galvanic corrosion on original factory casings.
All critical dimensions align with OEM requirements. Users can finish fast drop‑in installation without trimming or extra adjustments. Fully flush out every trace of casting sand and metal fragments prior to fitting. Inspect all gasket mating areas carefully, and follow service manual guidelines for correct gear‑oil volume after assembly completes.
Swap your cracked, holed or heavily corroded factory lower casing with this aftermarket housing. You will restore stable gear‑case protection and dependable internal‑component alignment for your outboard. Stick to regular marine maintenance routines. These practical steps extend lower‑unit service life and preserve steady power output while running on the water..
Application:
Lower Casing Assy short shaft for Yamaha 2 stroke 9.9 15HP outboard motor
short shaft Lower Casing Assy for Parsun 2 stroke 9.9HP 15HP boat engine
short shaft Lower Casing Assy for Hidea 2 stroke 9.9HP 15HP outboard motor
2001 15MSHKZ LOWER CASING DRIVE 1
2001 15MSHZ LOWER CASING DRIVE 1
2001 9.9MSHKZ LOWER CASING DRIVE 1
2001 9.9MSHZ LOWER CASING DRIVE 1
2002 15MSHA LOWER CASING DRIVE 1
2002 9.9MSHA LOWER CASING DRIVE 1
2003 15MSHB LOWER CASING DRIVE 1
2003 9.9MSHB LOWER CASING DRIVE 1
2004 15MSHC LOWER CASING DRIVE 1
2004 9.9MSHC LOWER CASING DRIVE 1
2005 15FMHS LOWER CASING DRIVE 1
2005 15MSHD LOWER CASING DRIVE 1
2005 9.9FMHS LOWER CASING DRIVE 1
2005 9.9MSHD LOWER CASING DRIVE 1
2006 and Later 15MSH LOWER CASING DRIVE 1
2006 and Later 9.9MSH LOWER CASING DRIVE 1