Inner Leaf Plate Gasket – Fits Johnson/Evinrude 2-Cylinder Outboards (Replaces 321479)
Inner Leaf Plate Gasket – Fits Johnson/Evinrude 2-Cylinder Outboards (Replaces 321479) 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).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Inner Leaf Plate Gasket – Fits Johnson/Evinrude 2-Cylinder Outboard...
Product Details
This aftermarket Inner Leaf Plate Gasket is engineered to create a precise seal for the leaf plate assembly on various Johnson/Evinrude 2-cylinder outboard engines. It ensures proper air-fuel mixture control for reliable engine operation.
This part is a direct replacement for Johnson/Evinrude OEM part number 321479.
- Designed for specific Johnson/Evinrude 2-cylinder models.
- Prevents vacuum leaks to maintain engine performance.
- Includes one gasket for a complete replacement.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Johnson/Evinrude | 321479 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | OEM Part No. | Notes |
|---|---|---|---|
| Johnson/Evinrude | 2-cylinder outboards | 321479 | Inner Leaf Plate Gasket |
Technical Specs
- Product Type
- Inner Leaf Plate Gasket
- Installation
- Engine-specific
- Product Dimensions
- 11.25" x 6.0" x 1.13"
- Other Technical Attributes
- For 2-cylinder Johnson/Evinrude outboard engines
What’s in the Box
- 1 x Inner Leaf Plate Gasket (321479)
Installation Notes
- Ensure the engine is off and cool. Disconnect the battery and fuel supply for safety.
- Carefully access and disassemble the engine's leaf plate housing to expose the old gasket.
- Remove the existing gasket. Thoroughly clean both mating surfaces to remove any old adhesive or gasket material.
- Position the new gasket, ensuring it aligns perfectly with all ports and bolt holes.
- Reassemble the leaf plate housing, tightening all fasteners to the manufacturer's recommended torque specifications.
- Reconnect the fuel line and battery, then start the engine and check for any air or fuel leaks around the assembly.
Troubleshooting & FAQ
What engines does this gasket fit?
This gasket is designed for specific Johnson/Evinrude 2-cylinder outboard motors that require OEM part number 321479. Always verify your part number before ordering.
What are the signs of a failing leaf plate gasket?
Common symptoms include difficulty starting, rough or unstable idling, a noticeable loss of engine power, and backfiring. A visual inspection may also reveal cracks or fuel residue around the leaf plate assembly.
Can I reuse my old gasket?
No. Gaskets are single-use components that compress and conform to the mating surfaces. Reusing an old gasket will likely result in an improper seal, leading to vacuum leaks and poor engine performance.
What is the function of the inner leaf plate gasket?
It creates an essential airtight seal for the leaf valve assembly. This ensures the correct air-fuel mixture enters the crankcase, which is critical for the performance and efficiency of a 2-stroke outboard engine.
Is this an OEM part?
This listing is for an aftermarket replacement, not an OEM component. It has been manufactured in an ISO 9002 facility to meet or exceed original equipment specifications and is batch-inspected for quality.
What are the shipping and delivery times?
We offer fast worldwide shipping, with most orders arriving in 5–15 days. Standard shipping is free to most destinations, and expedited options are 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 operational use. If you encounter an issue, please contact our support team with your order number. Returns of unused items in their original packaging are accepted within our standard return period.
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.
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