Genuine Tohatsu Water Pump Repair Kit 40-50HP 3T5-87322-3
3T5-87322-3
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Water Pump Repair Kit 3T5-87322-3
Premium Tohatsu & Nissan Outboard Service Kit
Maintain your outboard's cooling efficiency with this comprehensive water pump repair kit. Specifically designed for Tohatsu and Nissan 40HP to 50HP models, this kit provides everything required for a complete lower unit cooling system overhaul. Regular replacement of these components is vital to prevent engine overheating and ensure long-term reliability on the water.
Key Features
- ✔ Direct fit for Tohatsu/Nissan 40/50HP models
- ✔ High-performance 6-blade neoprene impeller
- ✔ Complete kit including gaskets and hardware
- ✔ Resists marine chemical corrosion
Technical Specs
| SKU/MPN: | 3T5-87322-3 |
| Impeller Blades: | 6 |
| Kit Contents: | Impeller, Cup, Plate, Key, Gaskets, Bolts |
Compatibility / Fitment Guide
| Model | Power | Engine type |
|---|---|---|
| Tohatsu M40 | 40 HP | 2-stroke |
| Tohatsu MFS40 | 40 HP | 4-stroke |
| Tohatsu MD30 | 30 HP | 2-stroke TLDI (direct injection) |
| Tohatsu 40–50 hp | 40–50 HP | — |
How to check before ordering: the part number on your old part should be 3T5-87322-3 (or a superseding number). If you are not sure, send us your engine model and serial number (on the plate on the engine bracket) and we will confirm fitment before you order. Tohatsu often uses the same part on related models, so this list may not be complete.
OEM Cross Reference
| Manufacturer | Part Number(s) |
|---|---|
| Tohatsu / Nissan | 3T5-87322-3, 3T5-87322-2, 3T5-87322-1, 3T5-87322-0 |
| Mercury Marine | 46-8M0046094, 8M0046094 |
| Sierra Marine | N/A (Matches OEM Spec) |
Questions & Answers
Is this a genuine original part?
This is a premium quality aftermarket replacement part, manufactured to meet or exceed original equipment (OE) standards for fitment and performance in harsh marine environments.
How do I know if it is compatible?
It fits the Tohatsu M40 (40 HP 2-stroke), MFS40 (40 HP 4-stroke), MD30 (30 HP 2-stroke TLDI) and related 40–50 HP Tohatsu models. To be sure, check the part number 3T5-87322-3 or send us your engine model and serial number.
How often should this water pump kit be replaced?
Most manufacturers recommend inspecting or replacing the water pump impeller every 100 hours of use or once per season to prevent unexpected cooling failure.
Note: 4boats.co.uk recommends verifying your original part number and engine serial number against the references above before purchasing.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
