# 3C8650212 Tohatsu Marine Water Pump Impeller | Genuine OEM Outboard Part

🔧 Product Description

  

Genuine Tohatsu / Nissan 40-50 HP Water Pump Impeller - Part Number: 3C8-65021-2

  

A genuine Tohatsu/Nissan six-blade water-pump impeller for M40D/M50D, TLDI and related 40-50 HP pump assemblies. The compact service number 3C8650212 corresponds to OEM part 3C8-65021-2.

  

⚙️ Key Features

  

• Genuine Tohatsu/Nissan flexible impeller

• Six-blade pump design

• Approximate dimensions: 50.4 mm OD × 20.1 mm wide

• Approximate 17.2 mm hub bore

• Three-drive-lug hub

• Used in the genuine 3C8-87322-3 repair kit

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 3C8-65021-2 / 3C8650212M → current service reference

• 3C8-65021-1 and 3C8-65021-0 → earlier related revisions

  

OEM / Related Numbers:

  

• 3C8650212

• 3C8650212M

• 3C8-65021-2

• 3C8-65021-1

• 3C8-65021-0

• 47-16154-2 - related Mercury/Mariner cross-reference

  

Aftermarket / Verified Equivalents:

  

• Sierra Marine: 18-8922

• Outboard Spares: OSI3C8

• Recmar equivalent for 3C8-65021-2

  

🚤 Compatibility

  

Commonly used on:

  

• Tohatsu M40D and M40D2

• Tohatsu M50D and M50D2

• Tohatsu MD40 and MD50 TLDI models where specified

• Nissan NS40D2 and NS50D2

• Tohatsu-built Mercury/Mariner 40-50 HP models with 0N-prefix serial numbers where 47-16154-2 is specified

  

Typically suits:

  

• HP Range: 40-50 HP; selected related applications extend to 60-70 HP only where explicitly catalogued

• Engine / System Type: Three-cylinder two-stroke, TLDI or related Tohatsu-built pump assembly

• Year Range: Approximately 2002-2017, model dependent

• Serial / Identification Range: Confirm the complete model and original 3C8-65021-2 number. Do not substitute the larger 3C7-65021-1 impeller used on many 70-140 HP engines.

  

🔌 Function

  

Draws and circulates cooling water through the powerhead while the engine is running.

  

Common signs replacement or service is required:

  

• Weak or absent tell-tale stream

• Overheat warning

• Cracked, missing or permanently bent vanes

• Hub separates from the rubber body

• Pump damage after dry running or debris ingestion

  

📦 Condition

  

• Genuine Tohatsu / Nissan OEM impeller, brand new.

• Brand new

• Supplied in manufacturer or equivalent protective packaging

## Details

- **Price:** 53.6 AUD
- **Vendor:** Tohatsu
- **Tags:** Tohatsu Outboard Parts | Marine Engine Components & Spares

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 53.60 AUD | In stock |

## Images

- 3C8650212 Tohatsu Marine Water Pump Impeller | Genuine OEM Outboard Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3c8650212-water-pump-impeller)
> Updated: 2026-08-01