Gasket – Fits Volvo Penta SX & DPS Sterndrives (Replaces 3889786, 3841968)
Gasket – Fits Volvo Penta SX & DPS Sterndrives (Replaces 3889786, 3841968) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Gasket – Fits Volvo Penta SX & DPS Sterndrives (Replaces 388978...
Product Details
This high-quality aftermarket Gasket – Fits Volvo Penta SX & DPS Sterndrives is designed to provide a reliable seal for the gear housing. It is a direct-fit replacement for a wide range of Volvo Penta sterndrive models, including the SX-A, SX-D, DPS-A, DPS-B, and FWD series.
It directly replaces Volvo Penta OEM part numbers 3889786 and the superseded part 3841968.
- Ensures a precise, leak-free seal for the gear housing unit.
- Designed as a direct-fit component for straightforward installation.
- Includes one gear housing mounting gasket.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By |
|---|---|---|
| Volvo Penta | 3889786 | |
| Volvo Penta | 3841968 | 3889786 |
Engine & Model Compatibility
Confirm your engine model in the table below.
This gasket is compatible with numerous Volvo Penta sterndrive models. Please check your specific model against the list.
| Brand | Model | OEM Part No. | Notes |
|---|---|---|---|
| Volvo Penta | SX-A | 3889786 | Replaces 3841968 |
| Volvo Penta | SX-D | 3889786 | Replaces 3841968 |
| Volvo Penta | DPS-A | 3889786 | Replaces 3841968 |
| Volvo Penta | DPS-B | 3889786 | Replaces 3841968 |
| Volvo Penta | DPS-A OXI | 3889786 | Replaces 3841968 |
| Volvo Penta | DPS-B OX | 3889786 | Replaces 3841968 |
| Volvo Penta | DPS-B OXI | 3889786 | Replaces 3841968 |
| Volvo Penta | DPS-B1 | 3889786 | Replaces 3841968 |
| Volvo Penta | DPS-D1 | 3889786 | Replaces 3841968 |
| Volvo Penta | DPS-D1 OX | 3889786 | Replaces 3841968 |
| Volvo Penta | FWD-B1 | 3889786 | Replaces 3841968 |
| Volvo Penta | FWD-B2 | 3889786 | Replaces 3841968 |
| Volvo Penta | FWD-D1 OX | 3889786 | Replaces 3841968 |
| Volvo Penta | FWD-D2 OX | 3889786 | Replaces 3841968 |
Technical Specs
- Product Type
- Gear Housing Mounting Gasket/O-Ring
- Installation
- Direct fit
- Dimensions
- 140 mm L x 120 mm W x 5 mm H (5.51 in L x 4.72 in W x 0.20 in H)
- Weight
- 0.1 kg (0.22 lb)
What’s in the Box
- 1 x Gear Housing Mounting Gasket (Replaces 3889786)
Installation Notes
- Ensure the engine and sterndrive are safely secured and shut down before beginning work.
- Drain any fluids from the gear housing as specified in your OEM service manual.
- Carefully remove the old gasket. Ensure the mating surfaces are completely clean of any old material or residue. A plastic scraper can help prevent gouging.
- Verify the new gasket matches the old one in size, shape, and hole alignment.
- Position the new gasket correctly on the cleaned surface. Do not use sealant unless explicitly required by your service manual.
- Reassemble the components, tightening bolts in the sequence and to the torque specifications recommended by the manufacturer.
- Refill with the correct type and amount of gear lube. Before launching, check for any signs of leaks.
Troubleshooting & FAQ
How do I know if this gasket fits my sterndrive?
This gasket is designed for Volvo Penta SX, DPS, and FWD series sterndrives. To confirm, check the Engine & Model Compatibility table on this page and match your drive model. Verifying that your unit uses OEM part number 3889786 is the best way to ensure correct fitment.
What are the signs of a failing gear housing gasket?
Common symptoms include visible oil or gear lube leaking from the sterndrive's seams, water intrusion into the gearcase (which creates milky-looking oil), or a drop in gear lube level without another obvious cause.
What is the difference between part number 3889786 and 3841968?
Part number 3841968 is the older, superseded OEM part number. Volvo Penta updated the component to 3889786. This gasket is a direct replacement for both part numbers, conforming to the most current design specifications.
When should this gasket be replaced?
This gasket must be replaced any time the gear housing is separated for service, repair, or inspection. It is a single-use seal and should not be reused, as that can lead to leaks.
Is any sealant required with this gasket?
Typically, this type of gasket is installed dry on clean, flat surfaces. However, always consult your specific Volvo Penta service manual for any recommendations regarding the use of supplemental sealants.
How do I prepare the surface for the new gasket?
The mating surfaces must be perfectly clean, dry, and free of any old gasket material, oil, or corrosion. Use a plastic scraper and a suitable solvent that does not damage the metal to ensure a pristine surface for a proper seal.
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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