Description
Dometic Cobra Thrust Washer | Boat Supply Store
This critical component ensures proper spacing and load distribution within your sterndrive's lower unit, preventing premature wear on gears and bearings. Manufactured to precise tolerances, it maintains the exact .020" clearance necessary for efficient power transfer from your OMC Cobra engine. Essential for maintaining the integrity of lower unit assemblies, especially in saltwater environments where corrosion is a constant threat.
Key Features
- Ensures precise gear alignment for smooth operation.
- Distributes thrust load effectively to protect bearings.
- Replaces OEM OMC Cobra washers for direct fitment.
- Constructed from durable materials for longevity.
- Prevents costly damage to lower unit components.
- Restores original performance and efficiency.
- Facilitates proper propeller shaft seating.
- Critical for sterndrive rebuilds and maintenance.
Specifications
| Product Specifications | |
|---|---|
| Brand | DOMETIC |
| SKU | M18-4223 |
| Category | Plumbing & Ventilation |
Who This Is For
Boat owners performing routine maintenance or rebuilding their OMC Cobra sterndrive lower units. This part is essential for DIY mechanics and professional marine technicians seeking to restore or maintain optimal drive performance.
How It Compares
| Feature | Dometic Cobra Thrust Washer | Competitor |
|---|---|---|
| Product Type | Thrust Washer | Thrust Washer |
| Compatibility | OMC Cobra Sterndrives | OMC Cobra Sterndrives |
Common Concerns Answered
Will this fit my specific OMC Cobra sterndrive?
This thrust washer is designed as a direct replacement for original OMC Cobra sterndrive applications. Always verify your specific sterndrive model and year against OEM part specifications for guaranteed compatibility.
What is the material and durability?
Manufactured to meet stringent marine standards, this thrust washer is constructed from robust materials engineered to withstand the corrosive marine environment and the high-stress loads of sterndrive operation, ensuring extended service life.
How critical is replacing this part during a rebuild?
Replacing the thrust washer is paramount during any lower unit rebuild or service. It ensures correct gear mesh, bearing preload, and axial play, directly impacting the longevity and performance of the entire drive system. Failure to replace can lead to rapid gear and bearing failure.
Frequently Asked Questions
What is the primary function of a thrust washer in a sterndrive?
A thrust washer distributes the axial forces generated by the gears and propeller, preventing these forces from directly impacting bearings and housings, thereby reducing wear and ensuring smooth operation.
What is the recommended clearance after installing this thrust washer?
The specified clearance for proper function is typically around .020 inches, ensuring the gears mesh correctly without excessive play or binding. Consult your service manual for precise specifications.
Can this be used on non-OMC sterndrives?
This thrust washer is specifically engineered for OMC Cobra sterndrive applications. Using it on other brands or models may result in improper fitment and potential damage.
Does this come with any installation instructions?
While this product does not include specific installation instructions, it is designed to replace OEM parts directly. Refer to your OMC Cobra service manual for detailed installation procedures and specifications.
What are the signs of a worn or damaged thrust washer?
Signs of a failing thrust washer include excessive noise, vibration from the lower unit, difficulty shifting, premature bearing failure, and visible scoring or deformation of gear teeth. Regular inspections during maintenance are recommended.
