Piston Ring Set – Fits Volvo Penta KAD44, KAMD44, KAD300, KAMD300, TAMD41 (Replaces 3586758, 876775)
Piston Ring Set – Fits Volvo Penta KAD44, KAMD44, KAD300, KAMD300, TAMD41 (Replaces 3586758, 876775) is backordered and will ship as soon as it is back in stock.
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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.).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Piston Ring Set – Fits Volvo Penta KAD44, KAMD44, KAD300, KAMD300, ...
Product Details
This aftermarket Piston Ring Set is engineered for Volvo Penta KAD/KAMD 44-300 and TAMD41 series marine diesel engines requiring a 92mm bore size. Each set contains the necessary rings to service a single cylinder, ensuring a precise fit and reliable performance.
It serves as a direct replacement for Volvo Penta part numbers 3586758 and 876775, and interchanges with Orbitrade ORB30758, Crom 111443, and SLP PRK-758.
- Designed for direct OEM-equivalent installation.
- Compatible with marine diesel fuel systems.
- Includes a complete ring set for one piston.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Volvo Penta | 3586758 | Current OEM number |
| Volvo Penta | 876775 | Superseded by 3586758 |
| Orbitrade | ORB30758 | Aftermarket equivalent |
| Crom | 111443 | Aftermarket equivalent |
| SLP | PRK-758 | Aftermarket equivalent |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This set is compatible with the following Volvo Penta diesel engines:
| Brand | Model | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|
| Volvo Penta | KAD44P | 4-Stroke | 3586758 | Replaced 876775 |
| Volvo Penta | KAD44P-B | 4-Stroke | 3586758 | Replaced 876775 |
| Volvo Penta | KAD44P-C | 4-Stroke | 3586758 | Replaced 876775 |
| Volvo Penta | KAD300-A | 4-Stroke | 3586758 | Replaced 876775 |
| Volvo Penta | KAMD44P-A | 4-Stroke | 3586758 | Replaced 876775 |
| Volvo Penta | KAMD44P-C | 4-Stroke | 3586758 | Replaced 876775 |
| Volvo Penta | KAMD300-A | 4-Stroke | 3586758 | Replaced 876775 |
| Volvo Penta | TAMD41H-A | 4-Stroke | 3586758 | Replaced 876775 |
| Volvo Penta | TAMD41H-B | 4-Stroke | 3586758 | Replaced 876775 |
| Volvo Penta | TAMD41L-A | 4-Stroke | 3586758 | Replaced 876775 |
| Volvo Penta | TAMD41M-A | 4-Stroke | 3586758 | Replaced 876775 |
| Volvo Penta | TAMD41P-A | 4-Stroke | 3586758 | Replaced 876775 |
Technical Specs
- Product Type
- Piston Ring Set for 1 Cylinder
- Fuel Type
- Diesel
- Bore Diameter
- 92mm
- Ring Thickness
- 3.3 x 2.5 x 3.0mm
- Ring Components
- Chrome-plated compression ring, Scraper ring, Oil control ring with coil spring
- Material
- Cast Iron (compliant with ISO STD 6621-3:1990 & DIN 70909)
- Technical Attribute
- High bending strength specification
- Product Weight
- 0.062 kg (0.14 lbs)
- Product Dimensions
- 0.5" H x 13.0" W x 13.0" L
What’s in the Box
- 1 x Piston Ring Set (3586758)
Installation Notes
- Disconnect the negative battery terminal and safely drain engine oil and coolant.
- Remove the cylinder head, oil pan, and other components to access the piston assemblies.
- Carefully extract the piston and connecting rod from the cylinder bore.
- Use a piston ring expander tool to remove the old rings from the piston.
- Thoroughly clean the piston, ensuring the ring grooves are free of carbon buildup and debris.
- Install the new rings onto the piston in the correct order and orientation, starting with the oil control ring.
- Stagger the ring end gaps according to the engine's service manual specifications to prevent compression loss.
- Liberally lubricate the piston, rings, and cylinder wall with fresh engine assembly lube or oil.
- Use a piston ring compressor tool to gently guide the piston assembly back into the cylinder.
- Reassemble the engine, torquing all fasteners to the manufacturer's recommended values.
- Refill the engine with new oil and coolant, then check for any leaks before starting the engine.
Troubleshooting & FAQ
How do I confirm these rings fit my specific Volvo Penta engine?
The most reliable method is to match your engine model to the compatibility list provided. Also, verify that your engine has a 92mm cylinder bore, as this is a critical dimension for fitment. If unsure, cross-reference the OEM part number (3586758 or 876775) with your engine's service manual.
What are the common signs of worn or failing piston rings?
Symptoms of failing piston rings include excessive blue or white smoke from the exhaust (indicating oil burn), significant loss of engine power, increased oil consumption between changes, and poor results from a cylinder compression test.
Do I need special tools to install these piston rings?
Yes, professional installation requires specialized tools, including a piston ring expander for safe removal/installation, a ring groove cleaner, and a piston ring compressor to correctly insert the piston back into the cylinder without damaging the rings.
Is there a specific orientation for each ring?
Yes, ring orientation is critical. The compression and scraper rings often have markings (like a dot or "T") that must face upwards towards the top of the piston. The oil control ring assembly must also be installed correctly. Always consult your engine's service manual for the exact procedure.
What is the recommended replacement interval?
Piston rings do not have a fixed replacement interval; they are typically replaced during a complete engine overhaul or when symptoms of failure (like low compression or high oil consumption) become apparent. Their lifespan depends heavily on engine operating conditions, maintenance, and fuel quality.
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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