Exhaust Connector Gasket – Fits Volvo Penta 30/40 Series Engines (Replaces 859011, 845527)
Exhaust Connector Gasket – Fits Volvo Penta 30/40 Series Engines (Replaces 859011, 845527) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Exhaust Connector Gasket – Fits Volvo Penta 30/40 Series Engines (R...
Product Details
This high-quality Exhaust Connector Gasket – Fits Volvo Penta 30/40 Series Engines (Replaces 859011, 845527) provides a reliable seal between the exhaust bend/elbow and the exhaust manifold. It is designed for a wide range of Volvo Penta 30 and 40 series diesel engines manufactured primarily in the 1980s and 1990s, ensuring a precise fit for models like the AD30, TAMD40, and TMD30.
This gasket is a direct replacement for Volvo Penta part numbers 859011 and 845527, offering an equivalent cross-reference for your maintenance needs.
- Installs on the flat mating surface between the exhaust manifold and elbow.
- Engineered from corrosion and heat-resistant composite material suitable for marine wet exhaust systems.
- Includes one gasket for a complete replacement.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket suppliers.
| Brand | Part Number |
|---|---|
| Volvo Penta | 859011 |
| Volvo Penta | 845527 |
Engine & Model Compatibility
Confirm your engine model in the table below. This part is specifically designed for the following Volvo Penta engines.
| Brand | Model | Stroke | OEM Part No. |
|---|---|---|---|
| Volvo Penta | AD30A | 4-Stroke | 859011/845527 |
| Volvo Penta | AQAD30A | 4-Stroke | 859011/845527 |
| Volvo Penta | MD30A | 4-Stroke | 859011/845527 |
| Volvo Penta | TAMD30A | 4-Stroke | 859011/845527 |
| Volvo Penta | TMD30A | 4-Stroke | 859011/845527 |
| Volvo Penta | AD30 | 4-Stroke | 859011/845527 |
| Volvo Penta | AQAD30 | 4-Stroke | 859011/845527 |
| Volvo Penta | MD30 | 4-Stroke | 859011/845527 |
| Volvo Penta | TAMD30 | 4-Stroke | 859011/845527 |
| Volvo Penta | TMD30 | 4-Stroke | 859011/845527 |
| Volvo Penta | MD40A | 4-Stroke | 859011/845527 |
| Volvo Penta | TMD40A | 4-Stroke | 859011/845527 |
| Volvo Penta | TMD40B | 4-Stroke | 859011/845527 |
| Volvo Penta | TMD40C | 4-Stroke | 859011/845527 |
| Volvo Penta | AQD40A | 4-Stroke | 859011/845527 |
| Volvo Penta | TAMD40A | 4-Stroke | 859011/845527 |
| Volvo Penta | TAMD40B | 4-Stroke | 859011/845527 |
| Volvo Penta | AD40B | 4-Stroke | 859011/845527 |
| Volvo Penta | AQAD40A | 4-Stroke | 859011/845527 |
| Volvo Penta | AQAD40B | 4-Stroke | 859011/845527 |
Technical Specs
- Product Type
- Exhaust Connector Gasket
- Installation
- Between exhaust bend/elbow and exhaust manifold
- Connection
- Flat mating surface
- Housing Material
- Composite gasket material
- Dimensions
- 11.5" L x 8.0" W x 0.3" H
- Fitting Type
- Exhaust flange
- Operating Temperature
- Suitable for marine wet exhaust systems
- Other Technical Attributes
- Corrosion and heat resistant
What’s in the Box
- 1 x Exhaust Connector Gasket (Replaces 859011/845527)
Installation Notes
- Ensure the engine is completely cool and all power sources are disconnected before starting.
- Disconnect the exhaust elbow from the exhaust manifold by removing its mounting bolts.
- Carefully remove the old gasket. Thoroughly clean both mating surfaces to remove any carbon buildup, rust, or old gasket material.
- Position the new gasket, ensuring it aligns perfectly with the bolt holes.
- Re-attach the exhaust elbow and tighten the bolts in a crisscross pattern to the manufacturer's specified torque. Do not overtighten.
- After installation, run the engine for a short period, then shut it down and re-check bolt torque once cool.
Troubleshooting & FAQ
How do I know if this gasket will fit my engine?
This gasket is specifically made for Volvo Penta 30-40 series diesel engines. To ensure a correct fit, please check your engine model against the compatibility list and confirm your existing part number matches 859011 or 845527.
What are the signs of a failed exhaust connector gasket?
Common symptoms of a leaking gasket include visible soot or black streaks around the connection, an audible hissing or puffing sound, water leaks, or a strong exhaust smell in the engine bay, especially under load.
Can I reuse my old gasket?
No. Gaskets are designed for a single use. They create a seal by compressing, and once used, they will not provide a reliable seal if re-installed. Always use a new gasket when servicing the exhaust connection.
What is the difference between this and an OEM part?
This aftermarket gasket is engineered to meet or exceed original equipment manufacturer (OEM) specifications for fit, material quality, and performance. It offers a cost-effective solution without compromising on the reliability needed for a durable exhaust seal.
Do I need to use sealant with this gasket?
This type of composite gasket is typically installed dry. Applying sealant can sometimes create an uneven surface and prevent a proper seal. We recommend following the instructions in your engine's official service manual.
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.
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