260388 Tohatsu Marine Impeller 70-140HP | Genuine OEM Outboard Part

🔧 Product Description

Tohatsu / Nissan 60-140 HP Water Pump Impeller - Cross-Reference: 260388

Flexible six-blade water-pump impeller catalogued under marine-market reference 260388 for the genuine Tohatsu/Nissan 3C7-65021-1 and 3B7-65021-2 impeller family. Reference 260388 is not a Tohatsu OEM number, so the supplied part should only be described as genuine Tohatsu if its packaging is marked 3C7-65021-1 or 3B7-65021-2.

⚙️ Key Features

• Six-blade flexible water-pump impeller

• Approximate outside diameter: 66-67.4 mm

• Approximate hub bore: 20.2-20.3 mm

• Approximate width: 35-35.1 mm

• Three-flat/three-drive-lug hub arrangement

• Fits the large Tohatsu/Nissan two-stroke and TLDI pump family

🔄 Supersession & Cross Reference

OEM Supersession Chain:

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

• 3B7-65021-2 → related/superseded OEM impeller reference

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

• 260388 → aftermarket catalogue/reference number, not a Tohatsu OEM number

OEM / Related Numbers:

• 260388

• 3C7-65021-1

• 3C7650211M

• 3B7-65021-2

• 3B7650212M

• 3B7-65021-1

• 3B7-65021-0

Aftermarket / Verified Equivalents:

• Sierra Marine: 18-8924

• CEF: 500388

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

🚤 Compatibility

Commonly used on:

• Tohatsu/Nissan M60B and M60C

• Tohatsu/Nissan M70B and M70C

• Tohatsu/Nissan M80A and M90A

• Tohatsu/Nissan MD70B, MD75C2, MD90B and MD90C2 TLDI

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

• Other 60-140 HP models only where the water-pump diagram specifies 3C7-65021-1 or 3B7-65021-2

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 complete Tohatsu/Nissan model code and original impeller number. Some 60-90 HP engines use a different 3C7-65021-2 impeller despite similar horsepower.

🔌 Function

The flexible vanes draw cooling water through the gearcase intake and circulate it through the powerhead. Correct impeller diameter, width and hub drive are essential for reliable priming and cooling-water pressure.

Common signs replacement or service is required:

• Weak, intermittent or absent tell-tale stream

• Overheat warning or elevated cylinder-head temperature

• Cracked, hardened or permanently bent vanes

• Missing vane sections after dry running or debris ingestion

• Scored pump liner or excessive impeller-to-housing clearance

📦 Condition

• Confirm packaging before advertising as genuine Tohatsu. Reference 260388 is an aftermarket catalogue number; genuine OEM packaging should show 3C7-65021-1 or 3B7-65021-2.

• Brand new

• Supplied in manufacturer or equivalent protective packaging