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, reverse gear detail shot, lower‑unit gearbox assembly installation reference picture
14. Independent Product Description
This heavy‑duty marine bevel pinion gear is reliable aftermarket replacement with OEM part number 63V‑45551‑00, compatible with Yamaha 9.9HP and 15HP outboard lower‑unit gearbox, works cooperatively with reverse gear for normal reversing function.
Built using wear‑resistant quenched alloy steel, the pinion gear undergoes precision CNC machining and standardized heat‑treatment procedures. It delivers high structural stiffness and excellent fatigue resistance. It withstands frequent shifting impact and cyclic heavy loads during extended marine operation. It maintains stable bevel‑gear meshing performance under salt‑spray and harsh marine environments, minimizing gear abrasion, tooth chipping and abnormal shifting knocking noise.
All gear tooth profiles, splines and mating dimensions strictly comply with OEM tolerance criteria. Users can complete accurate assembly without trimming or secondary reworking.
As a practical aftermarket service‑grade spare, this pinion gear resolves common lower‑unit troubles such as difficult reverse engagement, 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