Lower Unit Seal Kit – Fits Volvo Penta DP-S & DP-SM (Replaces 3856002)
Lower Unit Seal Kit – Fits Volvo Penta DP-S & DP-SM (Replaces 3856002) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Lower Unit Seal Kit – Fits Volvo Penta DP-S & DP-SM (Replaces 3...
Product Details
This comprehensive Lower Unit Seal Kit is engineered for Volvo Penta DP-S, DP-S1, and DP-SM lower unit models. It is fully compatible with sterndrives found on 4.3L, 5.0L, 5.7L, 5.8L, 7.4L, and 8.2L V6 and V8 engines manufactured between 1996 and 1998.
This kit serves as a direct replacement for Volvo Penta part number 3856002 and Johnson-Evinrude 3856002, ensuring a precise fit and reliable performance.
- Designed for direct, hassle-free installation.
- Includes all necessary seals and O-rings for a complete lower unit service.
- Built as a high-quality OEM service equivalent.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 3856002 |
| Johnson-Evinrude | 3856002 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Volvo Penta applications, this kit fits various DP-S, DP-S1, and DP-SM models from 1996–1998.
For OMC applications, this kit is compatible with specific V6 and V8 sterndrive engines from 1996–1998.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Volvo Penta | DP-S | 4-Stroke | 1996–1998 | 3856002 | Lower unit | |
| Volvo Penta | DP-S1 | 4-Stroke | 1996–1998 | 3856002 | Lower unit | |
| Volvo Penta | DP-SM | 4-Stroke | 1996–1998 | 3856002 | Lower unit | |
| Volvo Penta | DP-SM 1.68 | 4-Stroke | 1996–1998 | 3856002 | Lower unit | |
| Volvo Penta | DP-SM 1.78 | 4-Stroke | 1996–1998 | 3856002 | Lower unit | |
| Volvo Penta | DP-SM 1.95 | 4-Stroke | 1996–1998 | 3856002 | Lower unit | |
| Volvo Penta | DP-SM 2.32 | 4-Stroke | 1996–1998 | 3856002 | Lower unit | |
| Volvo Penta | DP-SMTD 1.95 | 4-Stroke | 1996–1998 | 3856002 | Lower unit | |
| Volvo Penta | DP-SMTD1 1.95 | 4-Stroke | 1996–1998 | 3856002 | Lower unit | |
| Volvo Penta | DP-SMTD3 2.11 | 4-Stroke | 1996–1998 | 3856002 | Lower unit | |
| OMC | 4.3L Sterndrive | 4-Stroke | 1996–1998 | V6 engine | ||
| OMC | 5.0L Sterndrive | 4-Stroke | 1996, 1998 | V8 engine | ||
| OMC | 5.7L Sterndrive | 4-Stroke | 1996–1998 | V8 engine | ||
| OMC | 5.8L Sterndrive | 4-Stroke | 1996 | V8 engine | ||
| OMC | 7.4L Sterndrive | 4-Stroke | 1996–1998 | V8 engine | ||
| OMC | 8.2L Sterndrive | 4-Stroke | 1998 | V8 engine |
Technical Specs
- Product Type
- Lower Unit Seal/Gasket Kit
- Installation
- Direct replacement
- Weight
- 159g (5.6 oz)
- Dimensions
- 21.0cm L x 10.5cm W x 5.0cm H
- Other Technical Attributes
- OEM service part
What’s in the Box
- 6 x Sealing Rings (Replaces 851407, 853807, 853808)
- 8 x O-Rings (Replaces 946438, 955981, 3852866, 3852959, 3854624, 3854625)
- 1 x Water Tube Seal (Replaces 3852315)
- 1 x Seal (Replaces 3854595)
Installation Notes
- Position the sterndrive in the full tilt-up position and place a drain pan under the lower unit.
- Remove the lower and upper gearcase oil drain/fill screws and allow the oil to drain completely.
- Remove the propeller and the six mounting bolts securing the lower unit to the upper gear housing.
- Carefully separate the lower unit from the upper housing. Inspect the driveshaft, water tube, and shift rod for damage.
- Systematically remove and replace all O-rings and seals from the gearcase and bearing carriers using appropriate seal pullers.
- Ensure all sealing surfaces are immaculately clean and free of corrosion or old gasket material.
- Lightly lubricate new seals and O-rings with marine grease before installation to prevent damage.
- Reassemble the lower unit, ensuring the driveshaft, water tube, and shift mechanism are correctly aligned.
- Tighten mounting bolts to the manufacturer's specified torque.
- Refill the gearcase with the recommended marine gear lubricant until it flows from the upper vent hole, then reinstall and tighten both screws.
Troubleshooting & FAQ
How do I know if this seal kit is the right one for my sterndrive?
This kit is specifically for Volvo Penta DP-S, DP-S1, and DP-SM drives from 1996–1998. The most reliable method is to cross-reference your existing part number with the ones listed: Volvo Penta 3856002 or Johnson-Evinrude 3856002. Also, check the compatible engine models in the table above.
What are the common signs of a failing lower unit seal?
The most common symptom is milky or creamy-looking gear lube, which indicates water intrusion. Other signs include visible oil leaks around the propeller shaft or drain screws, a persistent burning oil smell, or metal shavings on the magnetic drain plug.
How often should lower unit seals be replaced?
It's good practice to inspect your gear lube annually. We recommend replacing the seals every 2-3 years as part of preventative maintenance, or immediately if you notice any signs of water intrusion or oil leakage.
Does this kit contain all seals for a complete lower unit rebuild?
This kit contains all the common external seals, sealing rings, and O-rings for a standard lower unit reseal service, as detailed in the "What's in the Box" section. It is designed to address the most frequent leak points.
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.
Payment & Security
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