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Oil Pan Gasket – Fits Volvo Penta D6, D7 Diesel Engines (Replaces 859036, 3875377)

Sale price $25.99 Regular price $41.00
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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

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 replacement Oil Pan Gasket is designed for 6-cylinder Volvo Penta D6 and D7 series diesel engines. It ensures a secure, leak-free seal between the engine block and the oil sump, preventing costly fluid loss and maintaining engine health.

It serves as a direct interchange for Volvo Penta part numbers 859036 and the superseded 3875377.

  • Engineered for a direct replacement for a seamless fit.
  • Specifically compatible with diesel applications.
  • Built to original equipment manufacturer (OEM) specifications for reliable performance.

Part Number Matrix

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

Brand Part Number Superseded By
Volvo Penta 3875377 859036
Volvo Penta 859036

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Volvo Penta engines, this gasket fits select models in the D6, D7, and MD series. Please verify your specific model's requirements.

Brand Model Stroke OEM Part No. Notes
Volvo Penta D6 4-Stroke 859036 Diesel, 6-cylinder
Volvo Penta D7 4-Stroke 859036 Diesel, 6-cylinder
Volvo Penta MD7B 4-Stroke 859036 Diesel

Technical Specs

Product Type
Oil Pan Gasket
Installation
Direct replacement
Fuel Type
Diesel
Dimensions
32 x 24 x 0.3 cm
Weight
0.2 kg (0.45 lb)
Warranty
90 days (when purchased from authorized dealer)
Other Attributes
Also known as: oil sump gasket

What’s in the Box

  • 1 x Gasket (859036)

Installation Notes

  1. Ensure the engine is off, cool, and the battery is disconnected.
  2. Safely access the oil pan and drain the engine oil completely into a suitable container.
  3. Remove the oil pan mounting bolts and carefully detach the pan.
  4. Thoroughly clean all old gasket material from both the engine block and pan surfaces.
  5. Position the new gasket on the clean oil pan.
  6. Reinstall the oil pan, tightening bolts to the manufacturer's recommended torque in the specified sequence.
  7. Refill the engine with the correct grade and quantity of oil.
  8. Reconnect the battery, start the engine, and inspect for any leaks around the gasket seal.

Troubleshooting & FAQ

How do I know if this gasket fits my engine?

This gasket is designed for Volvo Penta's D6, D7, and MD7B series engines. To ensure a perfect match, always cross-reference your engine's part manual or the existing part number with 859036 or 3875377.

What are the signs of a failing oil pan gasket?

Common symptoms include visible oil drips under the engine bay, a low oil level warning light, the smell of burning oil, or a noticeable grime buildup around the oil pan seal.

When should this gasket be replaced?

The oil pan gasket is not a routine replacement item. It should be replaced if it fails and causes a leak, or as a preventative measure during major engine service or overhaul.

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 90-day 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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