Exhaust Elbow Gasket – Fits Volvo Penta MD/MB Series Marine Engines (Replaces 859015, 803374)
Exhaust Elbow Gasket – Fits Volvo Penta MD/MB Series Marine Engines (Replaces 859015, 803374) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Exhaust Elbow Gasket – Fits Volvo Penta MD/MB Series Marine Engines...
Product Details
This high-quality Exhaust Elbow Gasket provides a reliable seal between the exhaust elbow and manifold. It is designed for a wide range of Volvo Penta MD and MB series marine diesel engines from 5 to 40 HP, manufactured between 1975 and 2006.
This part is a direct replacement for Volvo Penta OEM part numbers 859015 and its predecessor, 803374.
- Engineered for direct-fit installation, fastening securely with bolts.
- Constructed from durable composite and metal materials to withstand the marine environment.
- Provides a critical seal to prevent exhaust and water leaks.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By |
|---|---|---|
| Volvo Penta | 859015 | |
| Volvo Penta | 803374 | 859015 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This gasket is compatible with the following Volvo Penta diesel engines:
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Volvo Penta | MD1 | 7.5 | 4-Stroke | 1975–1985 | 859015 | Supersedes 803374 |
| Volvo Penta | MD2 | 8 | 4-Stroke | 1975–1985 | 859015 | Supersedes 803374 |
| Volvo Penta | MD3 | 10 | 4-Stroke | 1975–1985 | 859015 | Supersedes 803374 |
| Volvo Penta | MD5 | 11.5 | 4-Stroke | 1976–1985 | 859015 | Supersedes 803374 |
| Volvo Penta | MD6 | 11.5 | 4-Stroke | 1975–1987 | 859015 | Supersedes 803374 |
| Volvo Penta | MD7 | 13 | 4-Stroke | 1975–1987 | 859015 | Supersedes 803374 |
| Volvo Penta | MD11 | 25 | 4-Stroke | 1975–2000 | 859015 | Supersedes 803374 |
| Volvo Penta | MD17 | 36 | 4-Stroke | 1975–2000 | 859015 | Supersedes 803374 |
| Volvo Penta | MB10 | 10 | 4-Stroke | 1980–1990 | 859015 | Supersedes 803374 |
Technical Specs
- Product Type
- Exhaust Elbow Gasket
- Installation
- Direct fit, fastens with bolts
- Fuel Type
- Diesel
- Material
- Composite/Metal
- Dimensions
- 10.0 cm × 16.5 cm × 0.2 cm
- Weight
- 0.1 kg (0.22 lb)
- Connection Type
- Bolt-on
- Warranty
- 12 months (24 months when installed by authorized Volvo Penta dealer)
- Other Technical Attributes
- Provides seal between exhaust elbow and manifold
What’s in the Box
- 1 x Exhaust Elbow Gasket (equivalent to 859015)
Installation Notes
- Ensure the engine is completely cool and disconnect the battery for safety.
- Carefully remove the mounting bolts connecting the exhaust elbow to the manifold.
- Remove the old gasket and discard it. Never reuse a gasket.
- Thoroughly clean both mating surfaces, ensuring they are free of old material, rust, or debris.
- Position the new gasket correctly on the manifold flange.
- Reinstall the exhaust elbow and tighten the bolts to the manufacturer's specified torque.
- Reconnect the battery and run the engine, checking carefully for any exhaust or water leaks around the connection.
Troubleshooting & FAQ
How do I know if this gasket will fit my engine?
Confirm your model and year range are listed in the "Engine & Model Compatibility" table. This part is specifically for Volvo Penta MD and MB series diesel engines and cross-references with OEM part 859015.
What are the signs of a failing exhaust elbow gasket?
Common symptoms include visible soot or black streaks around the connection, an audible exhaust leak (a ticking or hissing sound), reduced engine performance, or water leaks in the engine bay originating from the manifold/elbow joint.
Is any sealant or gasket adhesive required for installation?
Generally, this type of gasket is designed to be installed dry. The gasket material creates the seal when compressed. Using sealant can sometimes interfere with proper seating. Always consult your engine’s official service manual for the final word.
How often should this gasket be replaced?
The exhaust elbow gasket should be replaced any time the exhaust elbow is removed for service, inspection, or replacement. It is a single-use part designed to crush and seal once.
Is it difficult to replace this gasket myself?
For those with mechanical experience, it is a straightforward task. However, access can be tight, and it's critical to clean the mating surfaces perfectly and torque the bolts correctly. If you are unsure, professional installation is recommended.
Can I reuse my old bolts?
It is best practice to inspect the old bolts for corrosion or thread damage. If they show any signs of wear, they should be replaced to ensure a secure and lasting seal.
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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