1 years
China
. Certification
Manufactured in ISO9001‑certified production facility. CE documents available upon buyer’s request.
13. Real Product Photos
Complete gear overview shot, bevel pinion gear detail view, lower‑unit gearbox assembly installation reference picture
14. Independent Product Description
This heavy‑duty marine bevel pinion gear is manufactured as a reliable aftermarket replacement matching OEM part number 63V‑45551‑00, designed for Yamaha 9.9HP, 13.5HP, 15HP and 20HP outboard lower‑‑unit gearbox.
Built from wear‑resistant quenched alloy steel, the pinion gear goes through precision CNC machining and standardized heat‑treatment procedures. It provides high structural stiffness and outstanding fatigue resistance.
It can endure frequent shifting impact and cyclic heavy loads during long‑hour marine operation. It keeps stable bevel‑gear meshing performance under salt‑spray and harsh marine environments, effectively reducing gear abrasion, tooth chipping and abnormal shifting knocking noise.
All gear tooth profiles, splines and mating dimensions strictly comply with OEM tolerance criteria. Quick and accurate installation can be completed without trimming or secondary rework.
As a practical aftermarket service‑grade spare, this pinion gear fixes common lower‑unit troubles such as stiff shifting, gear slipping, knocking noise and power transmission loss. It restores dependable forward‑reverse shifting performance for your outboard motor. Inspect and refill gear oil after installation. Follow factory service manual for proper fitting, so your Yamaha outboard can transmit power reliably on open water.
Part Number: 63V-45551-00
YAMAHA Origin Part Number: 63V-45551-00-00
9.9HP 15HP Outboard Engine Pinion Gear Replacement: 63V-45551-00