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875512 Drive Bellow for Volvo Penta AQ80 AQ100 AQ100B AQ100S | JLM Marine
- $58.94
- $58.94
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Drive Bellow for Volvo Penta AQ80 AQ100 AQ100B AQ100S – Replaces 875512
This replacement drive bellow is engineered to fit Volvo Penta AQ80, AQ100, AQ100B, and AQ100 S (sailing boat drive) sterndrive systems. It provides a critical seal between the transom assembly and the drive unit, protecting internal components from water intrusion and ensuring reliable performance.
This part directly replaces OEM part numbers 875512, 875827, and 804186, offering a cost-effective aftermarket solution for maintaining your sterndrive's integrity.
- Compatible with multiple Volvo Penta AQ-series sterndrives
- Direct replacement for OEM bellows to restore proper sealing
- Essential component for preventing water damage to sterndrive internals
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number | Notes |
|---|---|---|
| Volvo Penta | 875512 | Primary OEM number |
| Volvo Penta | 875827 | Superseded by 875512 |
| Volvo Penta | 804186 | Superseded by 875512 |
Compatible Engine Models
Confirm your engine model/year in the table below.
| Brand | Model | Notes |
|---|---|---|
| Volvo Penta | AQ80 | Sterndrive |
| Volvo Penta | AQ100 | Sterndrive |
| Volvo Penta | AQ100B | Sterndrive |
| Volvo Penta | AQ100 S | Sailing boat drive |
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 875512 |
| Replaces Part Numbers | 875512, 875827, 804186 |
| Application | Volvo Penta AQ-series Sterndrive |
| Component Type | Drive Bellow |
Package Contents
- 1 × Drive Bellow
Installation Guide
- Disconnect the battery and ensure the boat is securely supported on stands or a trailer. Remove the sterndrive unit from the transom assembly following manufacturer procedures.
- Inspect the gimbal housing and transom plate for corrosion or damage. Clean all mounting surfaces thoroughly.
- Remove the old drive bellow by loosening the retaining clamps at both ends. Carefully slide the bellow off the drive shaft housing and gimbal ring.
- Apply a thin coat of marine grease to the inside of the new bellow to ease installation and prevent binding.
- Slide the new bellow onto the gimbal ring first, ensuring it seats properly in the groove. Then stretch it over the drive shaft housing.
- Install new stainless steel clamps at both ends of the bellow. Tighten evenly to the manufacturer's specified torque to ensure a watertight seal.
- Reinstall the sterndrive unit, reconnect all hoses and cables, and perform a full visual inspection for proper alignment.
- Launch the boat and run a water test to verify there are no leaks around the bellow area. Monitor for proper operation during initial use.
Troubleshooting & FAQ
Q: How do I confirm this bellow fits my Volvo Penta sterndrive?
A: Verify your engine model against the compatibility table above (AQ80, AQ100, AQ100B, AQ100 S). Cross-check the OEM part numbers 875512, 875827, or 804186 with your parts manual or existing bellow to ensure a match.
Q: How often should I replace the drive bellow?
A: Inspect the bellow annually for cracks, tears, or signs of wear. Most manufacturers recommend replacement every 3–5 years or immediately if damage is detected, as a failed bellow can cause severe water intrusion and sterndrive damage.
Q: What are the signs of a failing drive bellow?
A: Common symptoms include water in the bilge after operation, visible cracks or splits in the rubber, grease leakage around the sterndrive, or unusual noise during operation. Address any of these signs immediately to prevent costly internal damage.
Q: Can I install this bellow myself or do I need a professional?
A: Installation requires removing the sterndrive unit, which involves special tools and knowledge of alignment procedures. If you have mechanical experience and the proper equipment, DIY installation is possible; otherwise, professional installation is strongly recommended.
Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
- Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
- Fast Global Shipping: Free delivery worldwide in 5–15 days.
- Direct from Manufacturer: Competitive pricing without compromising quality.
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