Gasket – Fits Johnson Evinrude (Replaces 350357)
Gasket – Fits Johnson Evinrude (Replaces 350357) is backordered and will ship as soon as it is back in stock.
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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
Product Details
This aftermarket Gasket is designed for a variety of Johnson Evinrude outboard engines, including numerous HP models across both 2-Stroke and 4-Stroke platforms. It creates a durable, reliable seal for critical engine components, preventing leaks and ensuring optimal performance.
It serves as a direct cross-reference for Johnson Evinrude OEM part number 350357.
- This is a new, unused, unopened, and undamaged item in its original packaging.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Johnson Evinrude | 350357 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|
| Johnson Evinrude | (Various) | 2-Stroke & 4-Stroke | 350357 | Gasket |
Technical Specs
- Product Type
- Gasket
- Dimensions
- 16.0" L x 10.0" W x 0.2" H
- Condition
- New, unused, unopened, undamaged item in original packaging
What’s in the Box
- 1 x Gasket (Replaces 350357)
Installation Notes
- Ensure the engine is off and cool to the touch before beginning. Disconnect the battery for safety.
- Carefully remove the engine component that requires the new gasket.
- Thoroughly clean both mating surfaces. Remove all traces of old gasket material, sealant, oil, and grime.
- Place the new gasket into position, making sure it aligns perfectly with all bolt holes and passages.
- Reinstall the component. Tighten bolts or screws to the manufacturer's specified torque and in the recommended sequence found in your service manual.
- After reassembly, reconnect the battery, start the engine, and inspect carefully for any signs of leaks.
Troubleshooting & FAQ
How do I know if my gasket has failed?
Common signs of a bad gasket include visible fluid leaks (oil or coolant) from the engine, engine overheating, a noticeable loss of power or compression, or milky, emulsified engine oil, which indicates coolant is mixing with the oil.
Can I reuse my old gasket?
No. Gaskets are designed for one-time use. They create a seal by compressing and deforming to fit the mating surfaces. Once removed, they lose their ability to form a reliable, leak-proof seal.
Do I need to use sealant with this gasket?
Whether to use sealant depends on the specific application and manufacturer's guidelines. Some gaskets are designed to be installed dry, while others require a thin layer of a specific type of sealant. Always consult your engine's service manual for the correct procedure.
What are the most common causes of premature gasket failure?
The most frequent causes are improper installation, such as unclean or warped mating surfaces, and incorrect bolt tightening. Both over-tightening and under-tightening, or failing to follow the correct torque sequence, can cause the gasket to fail.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). It has been built to OEM-level specifications with comparable materials. The part is manufactured in an ISO 9002 facility and is batch-inspected for consistency and quality.
Shipping speed & cost?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options will appear at checkout where available for your location.
Warranty & returns?
This part is covered by a 1-year warranty against manufacturing defects under normal use. If any issues arise, please contact our support team with your order details. Returns are accepted within our standard window, provided the item is unused and in its original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against 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
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