1 years
China
Certification
Manufactured in ISO9001‑certified production facility. CE documents available upon buyer’s request.
13. Real Product Photos
Complete gear set overview shot, single 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 acts as 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 delivers high structural stiffness and excellent fatigue resistance.
It withstands frequent shifting impact and cyclic heavy loads during extended marine operation. It maintains stable gear meshing performance under salt‑spray and harsh marine surroundings, 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 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