3C7-65021-1 Tohatsu Marine Impeller | Genuine OEM Outboard Part

🔧 Product Description

Genuine Tohatsu / Nissan 60-140 HP Water Pump Impeller - Part Number: 3C7-65021-1

A genuine Tohatsu/Nissan six-blade flexible water-pump impeller for selected 60-140 HP two-stroke and TLDI outboards. It is the primary OEM number behind marine catalogue reference 260388 and replaces related 3B7-series impeller revisions.

⚙️ Key Features

• Genuine Tohatsu/Nissan flexible impeller

• Six-blade neoprene/rubber pump element

• Approximate dimensions: 66-67.4 mm OD × 35-35.1 mm wide

• Approximate 20.2-20.3 mm hub bore

• Three-drive-lug hub

• Matched to the large 3C7/3B7 water-pump liner and guide-plate system

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 3C7-65021-1 → current primary OEM service reference

• 3B7-65021-2 → related/superseded OEM reference

• 3B7-65021-1 and 3B7-65021-0 → earlier impeller revisions

OEM / Related Numbers:

• 3C7-65021-1

• 3C7650211M

• 3B7-65021-2

• 3B7650212M

• 3B7-65021-1

• 3B7-65021-0

• 260388

Aftermarket / Verified Equivalents:

• Sierra Marine: 18-8924

• CEF: 500388

• Recmar equivalent for 3C7-65021-1 / 3B7-65021-2

🚤 Compatibility

Commonly used on:

• M60B and M60C

• M70B and M70C

• M80A and M90A

• MD70B, MD75C2, MD90B and MD90C2

• M115A/M115A2, M120A/M120A2 and M140A/M140A2

• Nissan-branded equivalents using the same OEM impeller reference

Typically suits:

• HP Range: 60-140 HP

• Engine / System Type: Large two-stroke or TLDI outboard cooling-water pump

• Year Range: Approximately 1990s-2018, model dependent

• Serial / Identification Range: Confirm the engine model and original 3C7-65021-1/3B7-65021-2 number. Not all 60-90 HP Tohatsu engines use this large impeller.

🔌 Function

Rotates inside the pump liner to draw raw water through the lower-unit intake and supply cooling flow to the powerhead.

Common signs replacement or service is required:

• Weak tell-tale stream or overheating

• Cracked, hardened or missing vanes

• Impeller hub spins independently of the rubber body

• Pump fails to prime after storage

• Damage caused by sand, debris or dry running

📦 Condition

• Genuine Tohatsu / Nissan OEM part, brand new.

• Brand new

• Supplied in manufacturer or equivalent protective packaging