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• 3C8873221M / 3C8-87322-1 → superseded to 3C8873223M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