334-65021-0M Water Pump Impeller Nissan Outboard 9.9HP 15HP 18HP 20HP 2/4-stroke Engine

Certification: ISO9001 factory production; CE documents available upon request

Real Product Photos: Full impeller overview, 8‑blade close‑up shot, inner bore detail, water pump assembly installation reference picture

This heavy‑duty aftermarket water pump impeller serves as a reliable drop‑in replacement for Nissan 9.9‑20HP 2‑stroke and 4‑stroke outboard motors. It is fully interchangeable with OEM part number 334‑65021‑0M and its alternative part codes, also matches aftermarket references Sierra 18‑8904 and CEF 500336.

Molded from high‑grade marine‑grade neoprene rubber, this component delivers great tear strength, trustworthy aging resistance and solid defense against saltwater corrosion. It keeps stable performance even under tough on‑water working scenarios.

When exposed to continuous rotating pressure, the impeller keeps its original blade profile. It notably lowers risks of blade cracking, surface scuffing and permanent structural distortion.

Every vital dimension adheres to OEM specifications. Because of this, installers can complete fast, trouble‑free drop‑in fitting with no extra modification work. This unit resolves typical cooling‑system breakdowns. Such troubles include engine overheating, insufficient cooling‑water output and weak water flow, and worn‑out stock impellers are the main trigger for these faults.

Swap your aged or broken impeller for this assembly to restore steady cooling‑water circulation for your Nissan outboard. Remember to apply specified water‑pump lubricant throughout installation. Do not fire up the engine without available water feed. Following these practical care tips lengthen impeller service lifespan and sustain consistent engine running performance during marine trips.

Compatible With Tohatsu Outboard 9.9 15 18 20 HP Motors
Compatible With Tohatsu P/N: 334-65021-0 334-65021-0M
Sierra P/N:18-8921
CEF P/N: 500383
Impeller Dimensions:
No. Blades: 8
Depth /Height/ Width: 23.51mm
Outer/External impeller diameter: 41.11mm
Internal shaft insert/hub diameter: 13.88mm
Compatible With the Following Tohatsu 4-StrokeOutboard Engine Motors :
9.9HP MFS9.9B 2002 MFS9.9B2 2003-04 2006 MFS9.9C 2008 2011
15HP MFS15B 2002 MFS15B2 2003-08 MFS15C 2008-09 2012-14
MFS15D 2015-17
18HP MFS18B 2002 MFS18B2 2003-08
20HP MFS20C 2008-09 2012-14 MFS20D 2015-17
Compatible With the Following Tohatsu 2-Stroke Outboard Engine Motors :
9.9HP M9.9D 2002 M9.9D2 2002
15HP M15D2 2002
18HP M18E2 2002

Engine Position : Outboard
Engine : 2 Stroke
Manufacturer Part Number: : 334-65021-0 334-65021-0M
Replacement Compatible With: : Tohatsu Outboard
Engine Hose Power: : 9.9 15 18 20 HP
Sierra P/N: : 18-8921
CEF P/N: : 500383