. Certification
Manufactured in ISO9001‑certified production facility. CE documents available upon buyer’s request.
13. Real Product Photos
Complete gear set overview shot, forward & reverse gear detail view, gearbox assembly installation reference picture
14. Independent Product Description
This heavy‑duty outboard gear kit includes pinion gear 6E0‑45551‑00, forward gear 6E0‑45560‑00 and reverse gear 6E0‑45570‑00. It serves as a direct aftermarket replacement for Yamaha 4HP outboard lower unit gearbox.
Built using wear‑resistant quenched alloy steel, each gear component undergoes precision CNC machining and standardized heat‑treatment procedures. The gear set features high structural stiffness and excellent fatigue resistance. It can handle frequent shifting impact and cyclic heavy loads during long‑time marine operation. It maintains stable 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. Accurate assembly can be completed without trimming or secondary reworking.
As a reliable aftermarket service spare, this gear set fixes common lower‑unit problems including stiff shifting, gear slipping, knocking noise and power transmission loss. It restores normal forward‑reverse shifting function for your outboard motor. Please inspect and refill gear oil after installation. Follow factory service manual for proper fitting, so your Yamaha 4HP outboard can transmit power reliably on open water.
For Yamaha Outboard part number: 6E0-45570-00 /6E0-45571-00 (27T)
For Yamaha Outboard Models: 4HP 2 & 4 stroke (Year 1984-2002)
6E0-45570-00-00 Gear, Yamaha
Part Number 6E0-45570-00-00, 6E0455700000, 6E0-45570-00, 6E04557000, 6E0 45570 00
Gear, Yamaha, 6E0-45570-00-00 is
For Outboard: Yamaha 4, Yamaha 5



1 years
China