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Gasket – Fits Volvo Penta D2-40 Diesel Engines (Replaces 3840859)

Sale price $82.00 Regular price $131.00
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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.).

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Delivery and Shipping

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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 is a direct replacement Oil Pan/Sump Gasket – Fits Volvo Penta D2-40 Diesel Engines (39.6 HP, 4-stroke) manufactured from 2006 to present. It ensures a secure, leak-free seal for the engine's oil system, specifically for use with D2-40A, D2-40B, and D2-40F engine variants.

This gasket is a direct interchange for Volvo Penta part number 3840859.

  • Installation Method: Direct OEM Replacement
  • Fuel Type: Diesel
  • Primary Application: Engine Oil Pan / Sump

Part Number Matrix

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

Brand Part Number
Volvo Penta 3840859

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This part is specifically for Volvo Penta marine diesel engines.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Volvo Penta D2-40A 39.6 4-Stroke 2006–present 3840859 Oil Pan/Sump Gasket
Volvo Penta D2-40B 39.6 4-Stroke 2006–present 3840859 Oil Pan/Sump Gasket
Volvo Penta D2-40F 39.6 4-Stroke 2006–present 3840859 Oil Pan/Sump Gasket

Technical Specs

Product Type
Oil Pan/Sump Gasket
Installation
Direct OEM Replacement
Fuel Type
Diesel
Dimensions
50.0 cm L x 25.0 cm W x 0.1 cm H
Warranty
Standard Manufacturer Warranty
Other Technical Attributes
For use with D2-40A, D2-40B, D2-40F engine variants

What’s in the Box

  • 1 x Gasket (3840859)

Installation Notes

  1. Safely position the engine and drain the oil completely into a suitable container.
  2. Carefully unbolt and remove the engine's oil pan (sump). Set aside the bolts.
  3. Remove the old gasket and discard it. Thoroughly clean any residual gasket material or sealant from both the engine block and the oil pan mating surfaces.
  4. Position the new gasket correctly on the oil pan or engine block, ensuring all bolt holes align perfectly.
  5. Reinstall the oil pan. Hand-tighten the bolts first, then torque them to the manufacturer's specified values in the recommended sequence to ensure even pressure.
  6. Refill the engine with the correct grade and quantity of new engine oil. Check for leaks after running the engine for a few minutes.

Troubleshooting & FAQ

How do I know if my oil pan gasket needs replacing?

The most common signs of a failing oil pan gasket are visible oil drips under your engine, consistently low oil levels, or the smell of burning oil as it leaks onto hot engine components.

Is this gasket compatible with all Volvo Penta D2-40 engines?

Yes, this gasket is confirmed to fit the Volvo Penta D2-40A, D2-40B, and D2-40F engine variants from 2006 to the present.

Do I need to use gasket sealant with this part?

This gasket is designed to provide a complete seal on its own. However, it is best practice to consult your engine's official service manual, as some applications may require a small amount of sealant at joints or corners.

What are the signs of an incorrect installation?

An incorrectly installed gasket will typically result in immediate or premature oil leaks from the oil pan seam. This can be caused by improper surface cleaning, incorrect bolt torque, or damage to the gasket during installation.

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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