Gasket – Fits MerCruiser 85 HP & 140 HP Engines (Replaces 386573)
Gasket – Fits MerCruiser 85 HP & 140 HP Engines (Replaces 386573) is backordered and will ship as soon as it is back in stock.
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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 – Fits MerCruiser 85 HP & 140 HP Engines (Replaces 386573)
Product Details
This Gasket – Fits MerCruiser 85 HP & 140 HP Engines (Replaces 386573) is an essential component for maintaining a proper seal and optimal performance in various MerCruiser 85 HP and 140 HP models. It is designed for compatibility with engines from the inline 4-cylinder family, ensuring reliable operation.
This part is a direct replacement for MerCruiser part numbers REC386573 and 319771.
- Ensures a reliable, leak-free seal for engine components.
- Engineered for the specific temperature and pressure requirements of marine environments.
- Designed for straightforward installation during routine maintenance or repair.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| MerCruiser | REC386573 |
| MerCruiser | 319771 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For MerCruiser applications, this gasket is used across several inline 4-cylinder models. Please verify your specific model and required part number match the references provided.
| Brand | Model | Rated HP | OEM Part No. |
|---|---|---|---|
| MerCruiser | 85 HP | 85 | 386573/319771 |
| MerCruiser | 140 HP | 140 | 386573/319771 |
Technical Specs
- Product Type
- Engine Gasket
- Installation
- Engine Component
- Dimensions
- Height: 7.5 cm, Width: 6.0 cm, Length: 1.13 cm
- Weight
- 0.03 kg (0.066 lb)
What’s in the Box
- 1 x Gasket (REC386573/319771)
Installation Notes
- Disconnect the battery and ensure the engine is cool before beginning work.
- Drain any relevant fluids (coolant or oil) to prevent spills.
- Remove any components obstructing access to the old gasket.
- Carefully remove the old gasket, ensuring no residue is left on the mating surfaces.
- Thoroughly clean and inspect both mounting surfaces. They must be perfectly clean, dry, and flat.
- Position the new gasket correctly. Do not use sealant unless specified by your engine's service manual.
- Reassemble all components and tighten fasteners to the manufacturer's specified torque sequence and values.
- Refill engine fluids, reconnect the battery, and start the engine, checking carefully for any leaks.
Troubleshooting & FAQ
Which MerCruiser engines does this gasket fit?
This gasket is designed for MerCruiser 85 HP and 140 HP models, primarily those belonging to the inline 4-cylinder engine family. Always verify your specific part number before ordering.
How can I tell if my current gasket is failing?
Common signs of a bad gasket include fluid leaks around the sealing area, engine overheating, milky-looking oil (indicating coolant mixing), or a loss of engine performance and compression.
Is sealant required for this gasket?
In most applications, this gasket is installed dry. However, always refer to your engine's official service manual for the most accurate procedure and to see if a specific sealant is recommended for your model.
What is the difference between OEM and aftermarket parts?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials and manufactured in an ISO 9002 facility, with batch inspections for consistency.
How fast is shipping and what does it cost?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
What is the warranty and return policy?
This part is 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 for unused items 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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