Piston Ring Kit – Fits Volvo Penta MD2040 Series (Replaces 3580546)
Piston Ring Kit – Fits Volvo Penta MD2040 Series (Replaces 3580546) 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
Piston Ring Kit – Fits Volvo Penta MD2040 Series (Replaces 3580546)
Product Details
This standard (STD) size Piston Ring Kit – Fits Volvo Penta MD2040 Series is engineered for Volvo Penta marine diesel engines, specifically the MD2040 A, B, C, and D models. It ensures a precise fit and reliable performance for your engine's crank mechanism.
It serves as a direct replacement for Volvo Penta part number 3580546.
- Engineered for a standard (STD) size bore.
- Fits the complete Volvo Penta MD2040 A/B/C/D series.
- Includes a full ring set for a single piston.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 3580546 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This kit is designed for the specified Volvo Penta models. Ensure your engine is listed before purchasing.
| Brand | Model | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|
| Volvo Penta | MD2040A | 4-Stroke | 3580546 | Standard size |
| Volvo Penta | MD2040B | 4-Stroke | 3580546 | Standard size |
| Volvo Penta | MD2040C | 4-Stroke | 3580546 | Standard size |
| Volvo Penta | MD2040D | 4-Stroke | 3580546 | Standard size |
Technical Specs
- Product Type
- Piston Ring Kit
- Application
- Volvo Penta MD2040 Diesel Engines
- Size
- Standard (STD)
- Product Dimensions
- 5.0" H x 11.54" W x 11.5" L
- Package Contents
- Complete piston ring set for one engine
What’s in the Box
- 1 x Piston Ring Kit (3580546)
Installation Notes
- Disconnect the battery and drain all necessary engine fluids (oil, coolant).
- Remove the cylinder head and oil pan to gain access to the piston and connecting rod assemblies.
- Carefully push the target piston out of its cylinder bore from the bottom.
- Use a piston ring expander tool to safely remove the old rings from the piston.
- Thoroughly clean the piston, paying special attention to the ring grooves to remove all carbon buildup.
- Using the expander tool, install the new rings onto the piston in the correct order and orientation specified by your engine's service manual.
- Lubricate the new rings, piston, and cylinder wall with fresh engine oil.
- Use a piston ring compressor tool to guide the piston and ring assembly back into the cylinder bore without damaging the rings.
- Reassemble the connecting rod cap, oil pan, and cylinder head, torquing all fasteners to the manufacturer's specifications.
- Refill engine fluids, reconnect the battery, and perform an initial startup to check for leaks and proper operation.
Troubleshooting & FAQ
How do I know if this piston ring kit will fit my engine?
This kit is specifically for Volvo Penta MD2040 series engines (A, B, C, and D models). Please check the Engine & Model Compatibility table and verify your OEM part number is 3580546 before ordering.
What are the common signs of failing piston rings?
Symptoms of worn piston rings include excessive blue or white smoke from the exhaust, high oil consumption, loss of engine power, and poor results from a cylinder compression test.
Is this a complete set for an entire engine?
No, this package contains a complete ring set for one piston. If you are rebuilding multiple cylinders, you will need to purchase one kit per cylinder.
Do these rings require a specific break-in procedure?
Yes, proper engine break-in is critical. After installation, follow the procedures outlined in your engine's service manual, which typically involves running the engine under varying loads and RPMs to allow the new rings to seat correctly against the cylinder walls.
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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