Hull Seal Mounting Rubber – Fits Volvo Penta, Yanmar Sail Drive (Replaces 854932, 22303438, 196420-02550, 196420-02551)
Hull Seal Mounting Rubber – Fits Volvo Penta, Yanmar Sail Drive (Replaces 854932, 22303438, 196420-02550, 196420-02551) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Hull Seal Mounting Rubber – Fits Volvo Penta, Yanmar Sail Drive (Re...
Product Details
This Hull Seal Mounting Rubber – Fits Volvo Penta Sail Drive 110S 120S 130S 150S MS25S creates a critical watertight seal between the hull and the sail drive unit. It is designed for a broad range of Volvo Penta sail drives, including the 110S, 120S, 130S, 150S, and MS25S series, and is also compatible with Yanmar SD 20 through SD 60 models.
This part serves as a direct replacement for Volvo Penta part numbers 854932 and 22303438, as well as Yanmar interchange parts 196420-02550 and 196420-02551.
- Installs via a compression mount between the hull and sail drive.
- Requires a suitable marine-grade adhesive/sealant for a watertight installation.
- Constructed from durable rubber to withstand the marine environment.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 854932 |
| Volvo Penta | 22303438 |
| Yanmar | 196420-02550 |
| Yanmar | 196420-02551 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
Fits a wide range of Volvo Penta sail drive units, including sub-models within the 120S, 130S, and 150S series.
Compatible with Yanmar SD series sail drives from the SD 20 to the SD 60.
| Brand | Model | OEM Part No. | Notes |
|---|---|---|---|
| Volvo Penta | 110S | 854932/22303438 | Sail Drive Lower Unit |
| Volvo Penta | 120S-A | 854932/22303438 | Sail Drive Lower Unit |
| Volvo Penta | 120S-B | 854932/22303438 | Sail Drive Lower Unit |
| Volvo Penta | S120C | 854932/22303438 | Sail Drive Lower Unit |
| Volvo Penta | 120S-D | 854932/22303438 | Sail Drive Lower Unit |
| Volvo Penta | 120S-E | 854932/22303438 | Sail Drive Lower Unit |
| Volvo Penta | 130S-A | 854932/22303438 | Sail Drive Lower Unit |
| Volvo Penta | 130S-B | 854932/22303438 | Sail Drive Lower Unit |
| Volvo Penta | 130SR-A | 854932/22303438 | Sail Drive Lower Unit |
| Volvo Penta | 130SR-B | 854932/22303438 | Sail Drive Lower Unit |
| Volvo Penta | 150S-A | 854932/22303438 | Sail Drive Lower Unit |
| Volvo Penta | 150S-B | 854932/22303438 | Sail Drive Lower Unit |
| Volvo Penta | 150SR-A | 854932/22303438 | Sail Drive Lower Unit |
| Volvo Penta | 150SR-B | 854932/22303438 | Sail Drive Lower Unit |
| Volvo Penta | MS25S-A | 854932/22303438 | Sail Drive Lower Unit |
| Volvo Penta | MS25SR-A | 854932/22303438 | Sail Drive Lower Unit |
| Yanmar | SD 20 | 196420-02550/196420-02551 | Sail Drive Lower Unit |
| Yanmar | SD 30 | 196420-02550/196420-02551 | Sail Drive Lower Unit |
| Yanmar | SD 40 | 196420-02550/196420-02551 | Sail Drive Lower Unit |
| Yanmar | SD 50 | 196420-02550/196420-02551 | Sail Drive Lower Unit |
| Yanmar | SD 60 | 196420-02550/196420-02551 | Sail Drive Lower Unit |
Technical Specs
- Product Type
- Hull Seal Mounting Rubber
- Installation
- Between hull and sail drive unit
- Housing Material
- Rubber
- Housing Color
- Black
- Dimensions
- 320mm x 238mm with 185mm slot
- Weight
- Approx. 50g (0.11 lb)
- Fitting Type
- Compression mount
- Warranty
- Typically 30-day retailer warranty (non-OEM parts)
- Additional Attributes
- Requires appropriate adhesive/sealant for installation
What’s in the Box
- 1 x Hull Seal Mounting Rubber (Replaces 854932/22303438)
Installation Notes
- Prepare the mounting surfaces on the hull and sail drive, ensuring they are completely clean, dry, and free of old sealant, grease, or debris.
- Apply a suitable marine-grade structural adhesive/sealant evenly to the installation area on the hull.
- Carefully position the new hull seal onto the sealant, aligning it with the bolt holes and sail drive opening.
- Lower the sail drive unit into place, ensuring it beds correctly onto the new rubber seal.
- Install and tighten the mounting hardware to the manufacturer's specified torque, creating an even, watertight compression. Follow the correct tightening sequence if one is specified.
- Allow the adhesive/sealant to cure completely as per the sealant manufacturer's instructions before the vessel is launched.
Troubleshooting & FAQ
How do I know when to replace my sail drive hull seal?
Replacement is recommended based on the manufacturer's service interval (typically every 7-10 years) or immediately if you notice signs of failure. These signs include any water ingress around the sail drive inside the boat, or visible cracking, perishing, or deformation of the existing rubber seal.
Is this seal compatible with both Volvo Penta and Yanmar drives?
Yes, this aftermarket part is engineered to be a cross-reference for specific models from both manufacturers. It replaces Volvo Penta parts 854932/22303438 and Yanmar parts 196420-02550/196420-02551. Always verify your specific model is listed in our compatibility table before ordering.
What type of sealant is required for installation?
A high-strength, flexible, marine-grade structural bonding sealant is necessary to ensure a durable, watertight seal. Products such as FIX190 FAST CURE are often recommended, but it is best to consult your boat's service manual or a qualified marine professional for the ideal choice for your specific hull material and environment.
Can I install this part myself?
While installation may be possible for experienced boat owners with the correct tools and equipment, professional installation by a qualified marine technician is highly recommended. An incorrect installation can lead to catastrophic water ingress, potentially causing severe damage to your vessel.
What's the difference between OEM and aftermarket parts?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. Our parts are manufactured in an ISO 9002 facility and are batch-inspected for quality and consistency.
How much is shipping and how fast will it arrive?
We ship worldwide quickly—typical transit is between 5–15 days for most regions. Standard shipping is free, with expedited options available at checkout where applicable.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard window for items that are unused and in their 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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