Drive Rubber Bellows – Fits Volvo Penta AQ80, AQ100, AQ100B, AQ100S (Replaces 875512, 875827)
Drive Rubber Bellows – Fits Volvo Penta AQ80, AQ100, AQ100B, AQ100S (Replaces 875512, 875827) 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
Product Details
This Drive Rubber Bellows is an aftermarket replacement part designed for Volvo Penta sail drive and AQ drive series engines, specifically fitting AQ80, AQ100, AQ100B, and AQ100S models.
It is a direct interchange for OEM part numbers 875512 and 875827.
- Designed for external installation at the drive shaft connection.
- Made from durable rubber to withstand demanding marine environments.
- Includes two new stainless steel clamps for a complete installation.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 875512 |
| Volvo Penta | 875827 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | OEM Part No. |
|---|---|---|
| Volvo Penta | AQ80 | 875512 / 875827 |
| Volvo Penta | AQ100 | 875512 / 875827 |
| Volvo Penta | AQ100B | 875512 / 875827 |
| Volvo Penta | AQ100S | 875512 / 875827 |
Technical Specs
- Product Type
- Drive Rubber Bellows
- Installation
- External, drive shaft connection
- Housing Material
- Rubber
- Dimensions
- 11.0" H x 16.0" W x 16.0" L
- Weight
- 50 grams (1.76 ounces)
- Included Hardware
- 2 stainless steel clamps
What’s in the Box
- 1 x Bellows
- 2 x Stainless Steel Clamps
Installation Notes
- Ensure the engine is off and disconnect the boat's battery for safety.
- Access the sterndrive unit, tilting it to the full "up" position if necessary.
- Carefully remove the old clamps, then cut or slide off the old bellows.
- Thoroughly clean the mounting surfaces on the drive and transom assembly. Remove any old sealant or residue.
- Slide the new bellows into position, ensuring it is properly seated on both ends.
- Secure the new bellows with the provided stainless steel clamps, tightening them to the manufacturer's torque specification to ensure a watertight seal.
- Inspect the installation to confirm the bellows is not twisted or pinched.
- Lower the drive, reconnect the battery, and test for leaks in a controlled environment (on the trailer or lift) before full operation.
Troubleshooting & FAQ
How can I confirm this bellows fits my Volvo Penta engine?
This bellows is specifically designed for Volvo Penta models AQ80, AQ100, AQ100B, and AQ100S. The most reliable way to confirm fitment is to check if your existing part number matches the replacements: 875512 or 875827.
What are the signs of a failing drive bellows?
Visible signs include cracking, drying, brittleness, or tearing of the rubber. A critical indicator of failure is water leaking into the boat's bilge area, which suggests the bellows has been compromised and is no longer watertight.
How often should a drive bellows be replaced?
As a critical preventative maintenance item, it is recommended to inspect drive bellows annually and replace them every 3-5 years, depending on usage intensity, storage conditions, and exposure to saltwater versus freshwater. Do not wait for it to fail completely.
Is this part different from the original OEM bellows?
This is an aftermarket part designed to meet or exceed original equipment manufacturer (OEM) specifications for fit, form, and function. It uses comparable, high-durability rubber but is available at a more competitive price point.
Is this an OEM part or aftermarket?
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.
What is the shipping speed and cost?
We ship worldwide quickly—typical transit time is 5–15 days. Standard shipping is free to most regions; any available expedited options and associated costs will appear at checkout.
What is the warranty and return policy?
This part is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter any issues, 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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