Genuine Tohatsu Outboard Oil Seal 309-00122-0 (15x25x5mm) 2.5HP-6HP Marine
309-00122-0
- Dispatched in 2-3 days
- 30 Day Return Policy
- Low stock - 2 items left
- Backordered, shipping soon
Tohatsu Oil Seal 309-00122-0
Genuine Marine Gearcase Protection
This genuine Tohatsu Oil Seal (SKU: 309-00122-0) is a critical component for the maintenance of your outboard's lower unit. Manufactured from premium Nitrile Butadiene Rubber (NBR), this seal is specifically designed to withstand the harsh marine environment, ensuring gear oil remains contained while preventing corrosive salt water from entering the gearcase.
Key Features
- β Genuine Tohatsu factory part
- β Marine-grade Nitrile (NBR) construction
- β Corrosion-resistant internal spring
- β Precision double-lip design
Technical Specs
| Inner Diameter (ID) | 15 mm |
| Outer Diameter (OD) | 25 mm |
| Width/Thickness | 5 mm |
| Material | Nitrile Rubber (NBR) |
Compatibility / Fitment Guide
| Engine Brand | Model / Horsepower | Notes |
|---|---|---|
| Tohatsu 2-Stroke | 2.5hp, 3.5hp (M2.5A2, M3.5A2/B2) | Propeller Shaft Seal |
| Tohatsu 4-Stroke | MFS2, MFS2.5, MFS3.5, MFS4, MFS5, MFS6 | Gearcase Oil Seal |
| Mercury Marine | 2.5hp, 3.3hp, 3.5hp, 4hp, 5hp, 6hp | Tohatsu-based models |
OEM Cross Reference
| Tohatsu / Nissan | 309-00122-0, 309001220, 309001220M |
| Mercury Marine | 26-16130, 26-161301 |
| Sierra Marine | 18-2051 |
Questions & Answers
Is this a genuine original part?
Yes, this is an authentic OEM Tohatsu component sourced directly from authorized channels to ensure 100% compatibility and performance.
How do I know if it is compatible?
We recommend checking your original parts manual for the part number 309-00122-0. This seal is the standard propeller shaft seal for most Tohatsu-built outboards between 2.5HP and 6HP.
Where is this oil seal typically used?
This seal is primarily used as the propeller shaft (lower unit) oil seal to prevent gear oil from leaking out and salt water from entering the gearcase, which protects your gears from corrosion.
Note: Distributed by 4boats.co.uk. Please verify your original part number or engine serial number against the references above before purchasing.
For the products under Β£150 the shipping is Β£6.99.
Free delivery for most items over Β£150.
