Volvo Penta Shaft Seal Kit 35mm – Fits Volvo Inboard Drivelines (Replaces 828526)
Volvo Penta Shaft Seal Kit 35mm – Fits Volvo Inboard Drivelines (Replaces 828526) 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.).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Volvo Penta Shaft Seal Kit 35mm – Fits Volvo Inboard Drivelines (Re...
Product Details
This is an aftermarket Volvo Penta Shaft Seal Kit for 35mm shafts, designed for various Volvo Penta inboard drivelines. It ensures a robust, watertight seal for propeller shaft installations, specifically fitting stern tubes with a 54mm inner diameter. By maintaining a reliable seal, it prevents water intrusion and protects the driveline components from corrosion and wear.
This kit is a direct replacement for Volvo Penta part numbers 828526 and 828524.
- Designed for inboard propeller shaft installations.
- The complete kit includes essential installation tools.
- A tube of specialized grease is included for proper lubrication.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Volvo Penta | 828526 | Shaft Seal Kit |
| Volvo Penta | 828524 | Part number stamped on the seal itself |
Engine & Model Compatibility
Fitment for this shaft seal is determined by the propeller shaft and stern tube dimensions, not by a specific engine model. Please verify that your installation uses a 35mm diameter shaft and has a 54mm diameter stern tube before ordering.
Technical Specs
- Product Type
- Rubber Shaft Seal (Stuffing Box)
- Installation
- Inboard Propeller Shaft
- Shaft Size
- 35mm
- Stern Tube Diameter
- 54mm (Tolerance +0.5/-0.3mm)
- Housing Material
- Rubber
- Seal Dimension A
- 36mm
- Seal Dimension B
- 82mm
- Product Dimensions
- 14.5cm L x 12.0cm W x 12.0cm H
What’s in the Box
- 1 x Shaft Seal
- 1 x Installation Tool
- 1 x Tube of Grease
Installation Notes
For a successful installation, ensure the propeller shaft is clean, smooth, and free of burrs or scoring. Use the included grease to lubricate the new seal and shaft before installation to prevent damage. The included tool is designed to help seat the seal correctly within the stern tube. Following the vessel manufacturer's guidelines for shaft seal replacement is highly recommended.
Troubleshooting & FAQ
How do I confirm this seal fits my boat?
This seal's compatibility is based on measurements, not engine models. It is designed for Volvo Penta inboard installations with a 35mm propeller shaft diameter and a 54mm stern tube inner diameter. Please measure your existing hardware to confirm before purchasing.
What is the difference between part numbers 828526 and 828524?
Part number 828526 refers to the complete replacement kit, which includes the shaft seal, an installation tool, and grease. Part number 828524 is the number stamped directly onto the rubber seal component itself.
What are signs my shaft seal needs replacing?
A worn or failing shaft seal will typically cause water to drip or spray from the stuffing box area while the shaft is turning. Any visible cracks, deformation, or hardening of the rubber also indicates that a replacement is necessary.
How often should I replace my propeller shaft seal?
Replacement intervals vary based on usage, water conditions, and manufacturer recommendations. It is good practice to inspect the seal regularly as part of routine maintenance and replace it at the first sign of leaking or material degradation.
Is this an OEM Volvo Penta part?
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.
How much is shipping and how fast is it?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
What is the warranty and return policy?
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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