Piston Ring Set – Fits Volvo Penta B20 Series Engines (Replaces 275336)
Piston Ring Set – Fits Volvo Penta B20 Series Engines (Replaces 275336) 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 B20 Series Engines (Replaces 275...
Product Details
This Piston Ring Set is engineered for Volvo Penta B20 2.0L inline 4-cylinder marine engines manufactured between 1968 and 1978. It covers a wide range of models, including the AQ105, AQ115, AQ130, and MB20 series.
Serves as a direct replacement for Volvo Penta part numbers 275336, 275295, and 275307, as well as Sierra interchange ORB11536.
- Features 0.030" (0.76mm) oversize rings for rebuilt engine blocks.
- Designed for standard installation in gasoline engines.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 275336 |
| Volvo Penta | 275295 |
| Volvo Penta | 275307 |
| Sierra | ORB11536 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
These rings are designed for the following Volvo Penta engine models. Please check your specific model and year range for a guaranteed fit.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Volvo Penta | AQ105A | - | 4-Stroke | 1968–1969 | 275336 | |
| Volvo Penta | AQ115A | - | 4-Stroke | 1969–1970 | 275336 | |
| Volvo Penta | AQ115B | - | 4-Stroke | 1970–1975 | 275336 | |
| Volvo Penta | AQ130A | - | 4-Stroke | 1968–1970 | 275336 | |
| Volvo Penta | AQ130B | - | 4-Stroke | 1968–1970 | 275336 | |
| Volvo Penta | AQ130C | - | 4-Stroke | 1969–1975 | 275336 | |
| Volvo Penta | AQ130D | - | 4-Stroke | 1975–1977 | 275336 | |
| Volvo Penta | MB20A | - | 4-Stroke | 1969–1971 | 275336 | |
| Volvo Penta | MB20B | - | 4-Stroke | 1969–1975 | 275336 | |
| Volvo Penta | MB20C | - | 4-Stroke | - | 275336 | |
| Volvo Penta | AQ165A | - | 4-Stroke | 1968–1969 | 275336 | |
| Volvo Penta | AQ170A | - | 4-Stroke | 1969–1972 | 275336 | |
| Volvo Penta | AQ170B | - | 4-Stroke | 1972–1973 | 275336 | |
| Volvo Penta | AQ170C | - | 4-Stroke | 1973–1978 | 275336 | |
| Volvo Penta | BB115A | - | 4-Stroke | 1969–1970 | 275336 | |
| Volvo Penta | BB115B | - | 4-Stroke | 1970–1975 | 275336 | |
| Volvo Penta | BB115C | - | 4-Stroke | 1975–1977 | 275336 | |
| Volvo Penta | BB165A | - | 4-Stroke | 1965–1969 | 275336 | |
| Volvo Penta | BB170A | - | 4-Stroke | 1969–1972 | 275336 | |
| Volvo Penta | BB170B | - | 4-Stroke | 1972–1973 | 275336 | |
| Volvo Penta | BB170C | - | 4-Stroke | 1973–1978 | 275336 | |
| Volvo Penta | MB10A | - | 4-Stroke | 1971–1977 | 275336 | |
| Volvo Penta | B20 | - | 4-Stroke | - | 275336 | Base engine |
| Volvo Penta | B30 | - | 4-Stroke | - | 275336 |
Technical Specs
- Product Type
- Piston Ring Set
- Fuel Type
- Gasoline
- Ring Size
- 2.0mm × 2.0mm × 4.7mm
- Oversize
- 0.030" (0.76mm)
- Package Dimensions
- 15.0cm × 15.0cm × 0.5cm
- Product Dimensions
- 15.0cm × 15.0cm × 0.5cm
Installation Notes
- Disconnect the battery and safely drain all engine fluids (oil and coolant).
- Remove the cylinder head, intake/exhaust manifolds, and oil pan to access the pistons.
- Carefully extract the piston and connecting rod assemblies from the cylinder bores.
- Using a ring expander tool, remove the old piston rings.
- Thoroughly clean the piston ring grooves, removing all carbon buildup.
- Install the new piston rings onto the pistons in the correct order and orientation, checking for proper seating.
- Reinstall the piston assemblies, torquing all bolts to the manufacturer's specifications.
Troubleshooting & FAQ
How do I know if I need oversize piston rings?
Oversize rings are intended for engine blocks that have been bored to a larger cylinder diameter during a rebuild. You must measure your cylinder bore to confirm if these 0.030" oversize rings are correct for your application. Standard size rings will not seal properly in a bored cylinder.
Are these rings compatible with all Volvo Penta B20 engines?
This set is compatible with a wide range of B20-based marine engines from approximately 1968 to 1978. However, variations can exist. It is essential to verify your exact engine model and year against the compatibility table on this page.
What are common signs that my piston rings need replacement?
Symptoms of worn piston rings include increased oil consumption, visible blue or gray smoke from the exhaust (indicating oil burn), poor engine performance, and a loss of compression, which can be confirmed with a compression test.
What is the correct ring end gap?
The correct piston ring end gap is critical for performance and must be set according to your specific engine's official service manual. The gap allows for thermal expansion. Incorrect gaps can lead to engine damage.
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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