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Gasket – Fits Volvo Penta Marine Engines (Replaces 859186)

Regular price $0.00
Shipping calculated at checkout.

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 aftermarket gasket is engineered for Volvo Penta marine engines, serving as a direct replacement for OEM part number 859186. It provides a durable seal designed for optimal performance in demanding marine environments.

This part is a direct interchange for Volvo Penta 859186.

  • Installation Method: Direct replacement
  • Engine Application: Marine diesel
  • Package includes one gasket

Part Number Matrix

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

Brand Part Number
Volvo Penta 859186

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Comprehensive engine model compatibility for this part is not available. Please verify fitment by comparing your old part's specifications and part number.

Technical Specs

Product Type
Gasket
Installation
Direct replacement
Dimensions
Height: 0.3 cm, Width: 36.0 cm, Length: 46.8 cm
Weight
0.12 kg (0.26 lb)
Other Technical Attributes
Designed for marine engine applications

What’s in the Box

  • 1 x Gasket (Replaces 859186)

Installation Notes

  1. Ensure the engine is completely cool and disconnect the battery.
  2. Drain any necessary fluids (like coolant or oil) to prevent spills during removal.
  3. Carefully remove the component that the gasket seals, taking note of all fastener locations.
  4. Thoroughly clean both mating surfaces. Remove all old gasket material, sealant, and debris using a non-marring scraper.
  5. Position the new gasket onto the clean, dry surface. Do not use sealant unless specifically required by the service manual.
  6. Reinstall the component, tightening fasteners in the sequence and to the torque specifications recommended by the manufacturer.
  7. Refill drained fluids, reconnect the battery, and start the engine. Check carefully for any leaks.

Troubleshooting & FAQ

How do I know if this gasket fits my specific Volvo Penta model?

The most reliable method is to match your original part number to 859186. Since a complete compatibility list is unavailable, confirming the part number and visually comparing your old gasket to our product images and specifications is essential.

Do I need to apply sealant to this gasket?

Most modern gaskets are designed to be installed dry. Only apply sealant if it is explicitly recommended by your engine's service manual for this specific application. Unnecessary sealant can interfere with sealing and cause leaks.

What are the signs of a failed engine gasket?

Common symptoms include external oil or coolant leaks, engine overheating, white smoke from the exhaust (indicating coolant is being burned), or milky, contaminated engine oil.

How can I ensure a good seal during installation?

Proper surface preparation is critical. Both mating surfaces must be immaculately clean, dry, and free of any old gasket material, oil, or imperfections. Use a plastic scraper and an appropriate solvent for cleaning.

When should this gasket be replaced?

Gaskets typically do not have a set replacement interval. They are normally replaced only when they show signs of failure (leaking) or during a larger engine service or overhaul that requires component removal.

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.

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