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Baffle Gasket – Fits MerCruiser Marine Engines (Replaces 679-45315-A1)

Regular price $0.00
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Baffle Gasket – Fits MerCruiser Marine Engines (Replaces 679-45315-A1) is backordered and will ship as soon as it is back in stock.


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

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This Baffle Gasket – Fits MerCruiser Marine Engines is a high-quality replacement part designed to ensure a proper seal in the engine's baffle system. It is engineered for compatibility with a range of MerCruiser marine engines.

This part is a direct replacement for MerCruiser part number 679-45315-A1.

  • Installation Method: Direct replacement
  • Environment: Features a marine-grade construction suitable for saltwater environments
  • Package Contents: Includes one baffle gasket

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number
MerCruiser 679-45315-A1

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke Years OEM Part No. Notes
MerCruiser 679-45315-A1 Original equipment part

Technical Specs

Product Type
Baffle Gasket
Installation
Direct replacement
Dimensions
10.0 cm × 0.01 cm × 7.0 cm (L×W×H)
Weight
Negligible
Other Technical Attributes
Marine-grade construction for saltwater environments

What’s in the Box

  • 1 × Baffle Gasket (679-45315-A1)

Installation Notes

  1. Ensure the engine is off and cool. Disconnect the battery for safety.
  2. Locate and access the engine's baffle assembly. This may require removing other components.
  3. Carefully remove the old, worn baffle gasket. Take note of its orientation.
  4. Thoroughly clean both mating surfaces to remove any old gasket material, sealant, or debris.
  5. Position the new baffle gasket correctly onto the clean surface.
  6. Reassemble all components in the reverse order of removal, tightening fasteners to the manufacturer's specified torque.
  7. Reconnect the battery and check for any leaks after starting the engine.

Troubleshooting & FAQ

How do I know if this baffle gasket fits my engine?

The surest way is to match part number 679-45315-A1 from your engine's service manual or existing part. While this part is made for MerCruiser engines, always verify compatibility by cross-referencing this number.

What are the signs of a failing baffle gasket?

Symptoms of a failed baffle gasket can include oil or fluid leaks around the baffle area, poor engine performance, or unusual noises. A visual inspection may reveal cracking, brittleness, or deterioration of the gasket material.

Can I reuse my old baffle gasket?

No. Gaskets are single-use components designed to compress and create a seal. Once removed, they lose their sealing ability and must be replaced to prevent leaks.

What is the main function of this gasket?

This gasket provides a crucial seal within the engine's baffle system, which helps manage oil, air, or coolant flow. A proper seal is essential for preventing leaks and maintaining optimal engine pressure and performance.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost?

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns?

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in 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

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