Gasket (Cover) – Fits Johnson/Evinrude OMC (Replaces 329920)
Gasket (Cover) – Fits Johnson/Evinrude OMC (Replaces 329920) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Gasket (Cover) – Fits Johnson/Evinrude OMC (Replaces 329920)
Product Details
This replacement Gasket (Cover) is designed for a wide range of Johnson/Evinrude outboard motors manufactured between 1967 and 1995. It serves as a crucial seal for water and thermostat components, ensuring a leak-free connection.
It is a direct replacement for OMC part numbers 329920 and 0329920.
- Installs as a surface-mount seal between two components.
- Made from durable paper/gasket material to meet OEM standards.
- Engineered as a direct substitute for the original factory part.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| OMC | 329920 |
| OMC | 0329920 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This gasket is known to fit various Johnson and Evinrude 2-stroke outboard engines. Please verify your specific model requires the listed OEM part number.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Johnson/Evinrude | Multiple outboard models | Various | 2-Stroke | 1967–1995 | 329920/0329920 | Water cover gasket |
Technical Specs
- Product Type
- Cover Gasket
- Installation
- Surface mount between components
- Housing Material
- Paper/Gasket material
- Dimensions
- 1.03" L x 9.31" W x 6.0" H
- Other Technical Attributes
- Meets OEM Specifications
What’s in the Box
- 1 x Cover Gasket (329920/0329920)
Installation Notes
- Ensure the engine is off and cool. Disconnect the battery as a safety precaution.
- Drain any relevant fluids (e.g., coolant) to prevent spills during disassembly.
- Carefully remove the engine or component cover to access the old gasket.
- Thoroughly clean both mating surfaces. Remove all traces of old gasket material, sealant, and debris.
- Position the new gasket correctly onto the clean mounting surface.
- Reinstall the cover, tightening the bolts to the manufacturer-specified torque in a crisscross pattern to ensure even pressure.
- Refill any drained fluids, reconnect the battery, and run the engine to check for leaks.
Troubleshooting & FAQ
How do I know if this gasket fits my specific model?
This gasket fits a wide range of Johnson/Evinrude outboards from 1967–1995. The best way to confirm fitment is to verify that your engine's service manual calls for OEM part number 329920 or 0329920. Visually comparing the part in the listing photos to your old part is also a critical step.
What are the signs of a failing cover gasket?
Common signs include visible fluid leaks (coolant or oil) around the component cover, engine overheating from coolant loss, or poor performance. A compromised gasket can lead to pressure loss or fluid contamination.
Is any sealant required with this gasket?
Typically, paper gaskets of this type are installed dry. However, always consult your engine's official service manual for specific recommendations, as some applications may call for a thin layer of an appropriate sealant.
What's the difference between an OEM and an aftermarket part?
This listing is an aftermarket replacement (not OEM). It has been engineered to meet or exceed OEM-level specifications using comparable materials. Our parts are manufactured in an ISO 9002 certified facility and are batch-inspected to ensure quality and consistency.
What are the shipping speed and cost?
We ship worldwide quickly—typical transit is 5–15 days for most regions. Standard shipping is free, with expedited options available at checkout where applicable.
What is the warranty and return policy?
This part is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
