. Certification
Manufactured in ISO9001‑certified production facility. CE documents available upon buyer’s request.
13. Real Product Photos
Complete gear set overview shot, reverse gear detail view, gearbox assembly installation reference picture
14. Independent Product Description
This heavy‑duty outboard gear kit consists of reverse gear OE 6E0‑45570‑00, matched pinion gear 6E0‑45551‑00 and forward gear 6E0‑45560‑00. It works as direct aftermarket replacement for Yamaha 4HP outboard lower unit gearbox.
Built using wear‑resistant quenched alloy steel, every gear component receives precision CNC machining and standardized heat‑treatment procedures. The gear set provides high structural stiffness and superior fatigue resistance. It endures frequent shifting impact and cyclic heavy loads during long‑duration marine operation. It maintains stable gear meshing performance under salt‑spray and corrosive marine conditions, 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. Users can finish accurate assembly without trimming or secondary reworking.
As a practical aftermarket service‑grade spare, this gear set resolves common lower‑unit faults such as stiff shifting, gear slipping, knocking noise and power transmission loss. It restores reliable 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 4HP outboard can transfer power steadily 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