Gasket – Fits Volvo Penta MD5A, MD5B, MD5C, MD6, MD6A, MD6B Engines (Replaces 957170, 243488)
Gasket – Fits Volvo Penta MD5A, MD5B, MD5C, MD6, MD6A, MD6B Engines (Replaces 957170, 243488) 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).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Gasket – Fits Volvo Penta MD5A, MD5B, MD5C, MD6, MD6A, MD6B Engines...
Product Details
This engine Gasket – Fits Volvo Penta MD5A, MD5B, MD5C, MD6, MD6A, MD6B Engines is designed for a range of Volvo Penta models manufactured between 1971 and 1982. It serves as a crucial sealing component to ensure proper engine function.
It is a direct replacement for Volvo Penta part numbers 957170 and the superseded 243488.
- Designed as a direct OEM-level replacement part.
- Requires installation as an internal engine component.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Volvo Penta | 243488 | Superseded by 957170 |
| Volvo Penta | 957170 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This part is compatible with the following Volvo Penta engine models.
| Brand | Model | Rated HP | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Volvo Penta | MD5A | 7.5 | 1975–1978 | 957170 | Supersedes 243488 |
| Volvo Penta | MD5B | 7.5 | 1978–1981 | 957170 | Supersedes 243488 |
| Volvo Penta | MD5C | 9.5 | 1981–1982 | 957170 | Supersedes 243488 |
| Volvo Penta | MD6A | 10 | 1971–1975 | 957170 | Supersedes 243488 |
| Volvo Penta | MD6B | 10 | 1975–1976 | 957170 | Supersedes 243488 |
| Volvo Penta | MD11C | 23 | 1975–1981 | 957170 | Supersedes 243488 |
| Volvo Penta | MD11D | 25 | 1981–1983 | 957170 | Supersedes 243488 |
| Volvo Penta | MD70C | 99-145 | 1978–1985 | 957170 | Supersedes 243488 |
| Volvo Penta | 2001 | 9 | 1984–1991 | 957170 | Supersedes 243488 |
| Volvo Penta | 2001AG | 9 | 1984–1991 | 957170 | Supersedes 243488 |
Technical Specs
- Product Type
- Engine Gasket
- Installation
- Engine Component
- Dimensions
- 12.0" L x 10.0" W x 0.2" H
- Other Technical Attributes
- OEM Replacement Part
What’s in the Box
- 1 x Gasket (Replaces 957170)
Installation Notes
- Disconnect the vessel's battery and ensure the engine is completely cool before starting work.
- Access and remove the components necessary to reach the old gasket.
- Thoroughly clean the mating surfaces of the engine block and component, removing all traces of old gasket material and sealant.
- Carefully position the new gasket, making sure all holes and passages align perfectly.
- Reassemble the components and tighten all fasteners to the manufacturer's recommended torque specifications and sequence.
- Once assembled, reconnect the battery and run the engine, carefully checking for any leaks around the new gasket.
Troubleshooting & FAQ
How do I confirm this gasket fits my engine?
This gasket is made for specific Volvo Penta models including the MD5A, MD5B, MD5C, and others listed. Please review the "Engine & Model Compatibility" table and compare it with your engine's model and production year to ensure an exact match.
What are common signs of a failed engine gasket?
Symptoms of a bad gasket can include external oil or coolant leaks near the engine seams, engine overheating, a noticeable loss of power or compression, or milky-looking oil, which indicates coolant has mixed with it.
Is sealant required when installing this gasket?
In most cases, this gasket is designed for a dry installation. However, you should always consult your engine's official service manual for specific instructions, as some applications may have unique requirements.
What is the difference between part 957170 and 243488?
Part number 957170 is the current OEM part number which replaces the older, superseded part 243488. They are functionally identical, with 957170 being the updated reference for ordering.
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.
Payment & Security
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