Gearbox Oil Seal Kit for Mercury F9.9HP Outboard + 26-830749 Drain Washers
RM10-10100
- Dispatched in 2-3 days
- 30 Day Return Policy
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Gearbox Seal Kit & Washers
Optimized for Mercury F9.9HP Outboards
Maintaining your outboard's lower unit is critical for preventing water ingestion and gear failure. This premium gearbox oil seal kit is specifically designed for Mercury F9.9HP models, providing a complete solution for a professional service. The kit features high-performance seals alongside the updated 26-830749 yellow-coated washers, which are widely regarded as the industry standard for a leak-proof seal on 3/8-16 drain and fill screws.
Key Features
- β Complete Gearcase Seal Overhaul
- β Includes 26-830749 Premium Washers
- β Marine-grade NBR Rubber Seals
- β Corrosion-resistant Stainless Cores
Technical Specs
| Washer MPN: | 26-830749 / 8M0204693 |
| Screw Size: | 3/8"-16 Thread |
| Application: | Gearcase Lower Unit |
| Washer Type: | Rubber Coated SS |
Compatibility / Fitment Guide
| Make | Model/HP Range | Notes |
|---|---|---|
| Mercury | F9.9 HP (4-Stroke) | Standard Gearcase (1995-2006+) |
| Mercury / Mariner | 6hp / 8hp / 9.9hp / 15hp | 2-Stroke Models (1986-2006) |
| Force | 9.9hp / 15hp | 1998 Models |
OEM Cross Reference
| Mercury Marine | 26-41365A3, 26-41365A1, 26-830749, 26-8M0204693 |
| Sierra Marine | 18-2697-1 (Kit), 18-2430 (Washer) |
| GLM Marine | 87576 (Kit), 85621 (Washer) |
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.
How do I know if it is compatible?
This kit is designed for the standard gearcase found on Mercury F9.9HP models. If your outboard uses a 3/8"-16 drain screw (the most common size), the washers provided are a guaranteed fit.
What is special about the 26-830749 washers?
Unlike standard fiber or nylon washers, these are rubber-coated stainless steel. They are designed to be "crush-proof" and "tear-resistant," ensuring they don't deform and cause leaks during the high-pressure changes of your gearbox oil.
Note: Please verify your engine serial number or original part dimensions before purchasing. For BigFoot or High-Thrust models, please consult your service manual as seal sizes may differ.
For the products under Β£150 the shipping is Β£6.99.
Free delivery for most items over Β£150.
