Seal Kit – Fits Volvo Penta 200-290 Series Sterndrives (Replaces 421306)
Seal Kit – Fits Volvo Penta 200-290 Series Sterndrives (Replaces 421306) 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
Seal Kit – Fits Volvo Penta 200-290 Series Sterndrives (Replaces 42...
Product Details
This comprehensive Seal Kit – Fits Volvo Penta 200-290 Series Sterndrives provides the essential components needed for maintaining or repairing a wide range of sterndrives manufactured between 1968 and 1994. It is designed for compatibility with numerous 200, 250, 270, 275, 280, 285, 290, SP, and DP models.
This kit serves as a direct replacement for Volvo Penta part number 421306.
- Installation Location: Sterndrive
- Material: Durable Rubber/Synthetic compounds
- Contents: Includes essential sealing components for various sterndrive applications.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 421306 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Volvo Penta Models: This kit covers a broad range of gasoline and select diesel engines connected to 200-290 series sterndrives. Please verify your specific model and year for an exact match.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Volvo Penta | AQ115A | 115 | 4-Stroke | 1969–1970 | 421306 | |
| Volvo Penta | AQ115B | 115 | 4-Stroke | 1970–1975 | 421306 | |
| Volvo Penta | AQ130 | 130 | 4-Stroke | 1968–1975 | 421306 | |
| Volvo Penta | AQ130A | 130 | 4-Stroke | 1968–1970 | 421306 | |
| Volvo Penta | AQ130B | 115 | 4-Stroke | 1968–1970 | 421306 | |
| Volvo Penta | AQ130C | 130 | 4-Stroke | 1969–1975 | 421306 | |
| Volvo Penta | AQ130D | 110 | 4-Stroke | 1975–1977 | 421306 | |
| Volvo Penta | AQ131A/B/C/D | 120 | 4-Stroke | 1985–1989 | 421306 | |
| Volvo Penta | AQ145B | 138 | 4-Stroke | 1984–1985 | 421306 | |
| Volvo Penta | AQ151A/B/C | 146 | 4-Stroke | 1985–1989 | 421306 | |
| Volvo Penta | AQ165A | 165 | 4-Stroke | 1968–1969 | 421306 | |
| Volvo Penta | AQ170A/B/C | 160-170 | 4-Stroke | 1969–1978 | 421306 | |
| Volvo Penta | AQ171A/C | 167 | 4-Stroke | 1986–1989 | 421306 | |
| Volvo Penta | AQ175A | 170 | 4-Stroke | 1981–1985 | 421306 | |
| Volvo Penta | AQ190A | 182 | 4-Stroke | 1976–1977 | 421306 | |
| Volvo Penta | AQ200B/C/D/F | 200 | 4-Stroke | 1974–1986 | 421306 | |
| Volvo Penta | AQ205A | 205 | 4-Stroke | 1988–1989 | 421306 | |
| Volvo Penta | AQ211A | 210 | 4-Stroke | 1986–1989 | 421306 | |
| Volvo Penta | AQ225B/C/D/E/F | 225 | 4-Stroke | 1974–1986 | 421306 | |
| Volvo Penta | AQ231A/B | 229 | 4-Stroke | 1986–1989 | 421306 | |
| Volvo Penta | AQ240A | 225 | 4-Stroke | 1976–1977 | 421306 | |
| Volvo Penta | AQ255A/B | 255 | 4-Stroke | 1977–1978 | 421306 | |
| Volvo Penta | AQ260A/B | 260 | 4-Stroke | 1979–1986 | 421306 | |
| Volvo Penta | AQ271A/B/C/D | 270-275 | 4-Stroke | 1986–1989 | 421306 | |
| Volvo Penta | AQ290A | 290 | 4-Stroke | 1979–1985 | 421306 | |
| Volvo Penta | AQ311A/B | 307 | 4-Stroke | 1986–1989 | 421306 | |
| Volvo Penta | 230A/B | 120 | 4-Stroke | 1989–1993 | 421306 | |
| Volvo Penta | 250A/B | 146 | 4-Stroke | 1989–1993 | 421306 | |
| Volvo Penta | 251A | 167 | 4-Stroke | 1989–1992 | 421306 | |
| Volvo Penta | 275, 275A | 4-Stroke | 421306 | |||
| Volvo Penta | 280B | 4-Stroke | 421306 | |||
| Volvo Penta | 285A | 200 | 4-Stroke | 2012–Up | 421306 | |
| Volvo Penta | 290A, 290DP | 200 | 4-Stroke | 2015–Up | 421306 | |
| Volvo Penta | 430A/B, 431A/B, 432A, 434A | 205 | 4-Stroke | 1989–1993 | 421306 | |
| Volvo Penta | 500A/B | 210 | 4-Stroke | 1989–1993 | 421306 | |
| Volvo Penta | 501A/B | 229 | 4-Stroke | 1989–1993 | 421306 | |
| Volvo Penta | 570A | 275 | 4-Stroke | 1989–1993 | 421306 | |
| Volvo Penta | 571A | 307 | 4-Stroke | 1989–1992 | 421306 | |
| Volvo Penta | 572A | 270 | 4-Stroke | 1991–1993 | 421306 | |
| Volvo Penta | 740B | 330 | 4-Stroke | 1992–1993 | 421306 | |
| Volvo Penta | BB115A/B/C | 115 | 4-Stroke | 1969–1977 | 421306 | |
| Volvo Penta | BB165A | 165 | 4-Stroke | 1965–1969 | 421306 | |
| Volvo Penta | BB170A/B/C | 141-170 | 4-Stroke | 1969–1978 | 421306 | |
| Volvo Penta | BB225A/AV/B/C | 225 | 4-Stroke | 1973–1977 | 421306 | |
| Volvo Penta | BB260A/AV/B/C | 260 | 4-Stroke | 1978–1987 | 421306 | |
| Volvo Penta | D31, D41, D30, D40 | Various | 4-Stroke | 421306 | Diesel models | |
| Volvo Penta | MB20A/B/C | 42 | 4-Stroke | 1969–1975 | 421306 |
Technical Specs
- Product Type
- Seal Kit
- Installation
- Sterndrive
- Housing Material
- Rubber/Synthetic
- Housing Color
- Black
- Dimensions
- Height: 0.6 cm, Width: 8.0 cm, Length: 10.0 cm
- Weight
- 0.01 kg (0.022 lbs)
- Warranty
- Manufacturer standard (typically 1 year)
- Other Attributes
- Essential sealing components for various sterndrive applications
What’s in the Box
- 1 x Seal Kit Components (Replaces 421306)
Installation Notes
- Ensure the sterndrive is securely supported and disconnect the vessel's battery.
- Carefully drain the gear lube from the sterndrive unit.
- Disassemble the necessary components to gain access to the old seals, noting the order and orientation of each part.
- Remove all components of the old seals.
- Thoroughly clean all mating surfaces, ensuring they are free of old gasket material, sealant, or corrosion.
- Install the new seals from the kit, applying a light coat of marine grease to the seals before installation to ensure a proper fit.
- Reassemble the sterndrive components, tightening all fasteners to the manufacturer's recommended torque specifications.
- Refill the sterndrive with new, manufacturer-recommended gear lube to the correct level.
- After reassembly and refilling, check for any signs of leaks before operating the vessel.
Troubleshooting & FAQ
What are common signs that my sterndrive seals need to be replaced?
The most common indicators of a failing seal are water intrusion into the gear lube (giving it a milky white appearance), visible oil leaking from the sterndrive unit, or a frequent need to top off the gear lube reservoir.
Will this kit fit both Single Prop (SP) and DuoProp (DP) models?
Yes, this seal kit is compatible with a wide range of Volvo Penta sterndrives, including many SP and DP models produced between 1968 and 1994. Always verify your specific model and year against the compatibility chart.
How can I tell if I have a 280 or 290 drive?
You can typically find an identification plate on the upper part of the drive. The 290 drive also features a different, more streamlined helmet and a plastic water intake hose, whereas the 280 often has a metallic one.
Is any special sealant required during installation?
While the seals themselves are the primary barrier, a high-quality marine-grade gasket sealant may be recommended for certain mating surfaces. Always consult your service manual for specific sealant requirements for your sterndrive model.
Do I need special tools to install this seal kit?
Standard mechanical tools are required for disassembly. However, specific tools like a seal puller and a seal installation driver set are highly recommended to prevent damage to the new seals and housing during installation.
What is the difference between an OEM part and an aftermarket one?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials and manufactured in an ISO 9002 facility, with batch inspections for quality and consistency.
How fast is shipping, and how much does it cost?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free to most regions; expedited options will appear at checkout if they are available for your location.
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, contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. Please see our policy page or contact us 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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