Certification
Manufactured in ISO9001‑certified production facility. CE documents available upon buyer’s request.
Real Product Photos
Water pump impeller overall view, impeller blade close‑up shot, shaft bore detailed view, outboard water pump assembly installation reference picture
This durable marine water pump impeller serves as a reliable aftermarket replacement for Tohatsu 4‑stroke outboard motors including MFS6A3, MFS8‑series and MFS9.8‑series variants.
Made of premium marine‑grade rubber compound, this impeller boasts nice flexibility, strong tear‑resistance and solid salt‑water corrosion resistance. It can retain stable blade shape under ongoing rotary loads. Timely part replacement helps avoid blade cracking, surface scuffing and early‑stage wear within harsh salt‑water boating environments.
All dimensional parameters and inner‑bore tolerances align closely with OEM standards. Operators can finish fast, accurate drop‑in fitting with no further adjustments. This replacement resolves common cooling‑system issues: engine overheating, inadequate cooling‑water flow, weak water discharge and heavily worn impeller blades.
Swap your worn or broken impeller with this component to restore smooth cooling‑water circulation for your Tohatsu outboard motor. Apply dedicated water‑pump lubricant during assembly. Do not run the motor without water supply. Proper installation delivers steady, long‑lasting cooling performance for practical marine working scenarios.
Water Pump Impeller for Tohatsu 3B2-65021-1
Sierra:18-8920
CEF 500344
No. Blades: 6
Depth /Height/ Width: 18mm
Outer/External impeller diameter: 40mm
Internal shaft insert/hub diameter: 12.1mm
Net Weight:25g
MFS8A3 MFS9.8A3
Tohatsu Two stroke : M6B M8B M9.8B
Tohatsu 4-stroke:MFS8 MFS9.8 F9.8A F8A MFS6A3 MFS8A2 MFS9.8A2
MFS8A3 MFS9.8A3
Nissan 2-stroke:NS8 NS9.8
Nissan 4-stroke:NSF8 NSF9.8



1 years
China