Shaft Seal Kit – Fits Volvo Penta Marine Engines (Replaces 828254)
Shaft Seal Kit – Fits Volvo Penta Marine Engines (Replaces 828254) 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).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Shaft Seal Kit – Fits Volvo Penta Marine Engines (Replaces 828254)
Product Details
This is a complete Shaft Seal Kit designed for Volvo Penta marine engines requiring a 25mm propeller shaft with a 42mm shaft tube external diameter. It is engineered to provide effective, water-tight sealing and lubrication with minimal maintenance, ensuring reliable performance out on the water.
This kit serves as a direct replacement for Volvo Penta part number 828254.
- Installs on the marine propeller shaft to prevent water ingress.
- Engineered for a precise fit on specified shaft and tube diameters.
- Kit is supplied complete with installation tools and specialized grease.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 828254 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This seal is specifically dimensioned for various Volvo Penta marine engines that use the corresponding shaft and tube diameters.
| Brand | Model | Shaft Dia. | Shaft Tube Ext. Dia. | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Volvo Penta | Various Marine Engines | 25mm | 42mm | 828254 | Specifically dimensioned for Volvo Penta propeller shafts and tubes |
Technical Specs
- Product Type
- Rubber Shaft Seal Kit
- Installation
- Marine Propeller Shaft
- Shaft Diameter
- 25mm (1")
- Shaft Tube External Diameter
- 42mm (1-3/4")
- Dimension A
- 36mm
- Dimension B
- 66mm
- Housing Material
- Molded Rubber
- Maintenance Interval
- Every 200 hours or once a year
- Tube Diameter Tolerance
- +0.5,-0.3mm
- Maximum Distance Between Bearing Points
- 1500mm (59")
- Other Technical Attributes
- Complete with installation tools and grease
- Box Dimensions
- 13.0cm H x 9.0cm W x 13.0cm L
What’s in the Box
- 1 x Molded Rubber Shaft Seal Kit (828254)
- 1 x Set of Installation Tools
- 1 x Tube of Grease
Installation Notes
- Ensure the engine is off and the vessel is safely secured out of the water.
- Disconnect the propeller shaft from the transmission coupling.
- Carefully slide the shaft back far enough to access and remove the old shaft seal. Clean the shaft and housing area thoroughly.
- Apply the included grease to the new seal's inner lips and the propeller shaft.
- Gently slide the new seal onto the shaft and into the housing, using the provided installation tools to ensure it is seated correctly.
- Reconnect the propeller shaft to the transmission coupling, ensuring proper alignment.
- After launching the vessel, check for any leaks around the seal at idle and under load.
Troubleshooting & FAQ
How do I know if this shaft seal will fit my engine?
This seal is designed for Volvo Penta engines that use a 25mm (1") propeller shaft and a 42mm (1-3/4") shaft tube external diameter. Please verify these dimensions on your vessel and confirm the OEM part number is 828254 before ordering.
What are the signs of a failing shaft seal?
Common signs of failure include excessive water dripping or a steady stream of water entering the bilge from the shaft log area, a visible spray of water when the shaft is turning, or visible cracking/perishing of the rubber on the old seal.
What is the recommended maintenance for this seal?
The seal requires periodic lubrication. It is recommended to apply grease every 200 hours of operation or at least once a year. Regular inspection for wear or damage is also advised.
Can I install this part myself?
While installation can be performed by a knowledgeable boat owner, we recommend professional installation to ensure correct fitment, alignment, and leak-free performance. Incorrect installation can lead to significant water damage.
How does this aftermarket seal compare to the OEM version?
Our aftermarket parts are manufactured to meet or exceed OEM specifications using comparable, high-quality materials. They provide the same performance and fit as the original but at a more competitive value.
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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