# 3C8-87322-3 Tohatsu Marine Water Pump Kit | Genuine OEM Outboard Part

🔧 Product Description

  

Genuine Tohatsu / Nissan M40D2 / M50D2 Water Pump Repair Kit - Part Number: 3C8-87322-3

  

A genuine Tohatsu/Nissan water-pump repair kit for three-cylinder 40 HP and 50 HP two-stroke outboards. It renews the impeller, drive key, pump liner, guide plate, both pump gaskets and the four mounting bolts, but does not include the upper pump housing.

  

⚙️ Key Features

  

• Complete genuine Tohatsu/Nissan wear-component repair package

• For M40D/M40D2 and M50D/M50D2 three-cylinder pump assemblies

• Includes the stainless liner and guide plate

• Includes four replacement mounting bolts

• Upper water-pump housing is not identified as included

  

📋 Kit Contents

  

• 1 × water-pump impeller - 3C8-65021-2

• 1 × impeller drive key - 332-65022-0

• 1 × pump-case liner - 3C8-65011-1

• 1 × water-pump guide plate - 3C8-65025-0

• 1 × guide-plate gasket - current reference 3C8-65029-3

• 1 × pump-case gasket - current reference 3C8-65018-3

• 4 × pump mounting bolts with washers - 910113-5855

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 3C8873223M / 3C8-87322-3 → current kit reference

• 3C8873221M / 3C8-87322-1 → superseded to 3C8873223M

• 3C8873220M / 3C8-87322-0 → earlier kit revision

• 3C8-65029-3 → supersedes 3C8-65029-2, -1 and -0 gasket revisions

• 3C8-65018-3 → supersedes 3C8-65018-2 and -1 gasket revisions

  

OEM / Related Numbers:

  

• 3C8-87322-3

• 3C8873223M

• 3C8-87322-1

• 3C8873221M

• 3C8-87322-0

• 3C8873220M

• 3T5-87322-3 - later pump-family kit requiring housing/liner compatibility checks

  

Aftermarket / Verified Equivalents:

  

• Mercury/Mariner service family: 853792A3 on corresponding Tohatsu-built applications

• Sierra-based repair kits using impeller 18-8922

• Aftermarket 3C8-87322-3 kits must include the listed liner, plate, two gaskets, key and four bolts

  

🚤 Compatibility

  

Commonly used on:

  

• Tohatsu M40D and M40D2

• Tohatsu M50D and M50D2

• Nissan NS40D2 and NS50D2

• Selected Tohatsu-built Mercury/Mariner 40-50 HP models only where the pump diagram cross-references this kit

  

Typically suits:

  

• HP Range: 40-50 HP

• Engine / System Type: Three-cylinder carburetted two-stroke outboard

• Year Range: Approximately 2002-2017, model dependent

• Serial / Identification Range: Confirm the complete model and current pump housing/liner combination. Later 3T5 housing and liner components must be replaced as a matched pair.

  

🔌 Function

  

Restores the pump-chamber wear surfaces, flexible impeller, sealing gaskets and mounting hardware required to produce reliable cooling-water flow.

  

Common signs replacement or service is required:

  

• Weak or absent tell-tale stream

• Overheat warning

• Impeller vanes are cracked, hardened or missing

• Pump liner or guide plate is scored

• Gaskets leak or mounting bolts are corroded

• Pump housing has been run dry or damaged by debris

  

📦 Condition

  

• Genuine Tohatsu / Nissan OEM water-pump repair kit, brand new.

• Brand new

• Supplied in manufacturer or equivalent protective packaging

## Details

- **Price:** 94.5 AUD
- **Vendor:** Tohatsu
- **Tags:** Tohatsu Outboard Parts | Marine Engine Components & Spares

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 94.50 AUD | In stock |

## Images

- 3C8-87322-3 Tohatsu Marine Water Pump Kit | Genuine OEM Outboard Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3c8-87322-3-water-pump-kit)
> Updated: 2026-08-01