Piston Ring Kit – Fits Volvo Penta AQ120B, AQ125A, AQ140A (Replaces 275340)
Piston Ring Kit – Fits Volvo Penta AQ120B, AQ125A, AQ140A (Replaces 275340) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
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).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Piston Ring Kit – Fits Volvo Penta AQ120B, AQ125A, AQ140A (Replaces...
Product Details
This aftermarket Piston Ring Kit – Fits Volvo Penta AQ120B, AQ125A, AQ140A (Replaces 275340) is designed for specific 4-cylinder gasoline marine engines, including the Volvo Penta AQ120B, AQ125A, AQ140A, and BB140A models. It is also compatible with Volvo Cars 240 and 260 models equipped with B21 engines from 1979–1984.
This kit serves as a direct replacement for Volvo Penta OEM part number 275340.
- Installation: Intended for engine rebuilds.
- Ring Size: 1.75 x 2.0 x 4.0 mm.
- Quantity: Includes one complete 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 | 275340 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Volvo Penta Marine Engines: Designed for several 4-stroke gasoline models.
For Volvo Car Engines: Fits specific B21-series engines used in 240/260 models.
| Brand | Model | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Volvo Penta | AQ120B | 4-Stroke | 275340 | Gasoline Marine Engine | |
| Volvo Penta | AQ125A | 4-Stroke | 275340 | Gasoline Marine Engine | |
| Volvo Penta | AQ140A | 4-Stroke | 275340 | Gasoline Marine Engine | |
| Volvo Penta | BB140A | 4-Stroke | 275340 | Gasoline Marine Engine | |
| Volvo Cars | 240 | 4-Stroke | 1979–1984 | 275340 | B21A/B21F/B21E Engines |
| Volvo Cars | 260 | 4-Stroke | 275340 | B21A/B21F/B21E Engines |
Technical Specs
- Product Type
- Piston Ring Kit
- Installation
- Engine Rebuild
- Fuel Type
- Gasoline
- Ring Size
- 1.75 x 2.0 x 4.0 mm
- Quantity
- 1 Piston Set
- Application
- Marine 4-Cylinder Engines
- Warranty
- Manufacturer Warranty on New Items
- Condition
- New (Old Stock)
- Package Dimensions
- 13.0" L x 14.0" W x 0.5" H
What’s in the Box
- 1 x Piston Ring Kit (275340)
Installation Notes
- Disconnect the battery and drain engine oil and coolant.
- Remove the cylinder head and oil pan to access the piston connecting rods.
- Carefully push the piston out of the cylinder bore. Note its orientation.
- Using a ring expansion tool, remove the old piston rings.
- Clean the piston ring grooves thoroughly, removing all carbon deposits.
- Install the new rings onto the piston in the correct order and orientation.
- Lubricate the piston, rings, and cylinder wall with fresh engine oil.
- Use a ring compressor to carefully guide the piston back into the cylinder.
- Reassemble the connecting rod cap, oil pan, and cylinder head to manufacturer torque specifications.
- Refill engine oil and coolant, then reconnect the battery.
Troubleshooting & FAQ
How do I confirm this kit fits my engine?
The best way is to match your engine model to the compatibility table. Also, verify that your existing part number is 275340.
Is this a complete set for my entire engine?
No, this kit contains rings for a single piston. For a 4-cylinder engine, you will need to purchase four kits.
What are the signs of failing piston rings?
Common symptoms include excessive oil consumption, blue-gray smoke from the exhaust (indicating burning oil), poor acceleration, and a general loss of engine power or compression.
Can this kit be used in both marine and automotive engines?
Yes, this specific part (275340) is cross-compatible with the listed Volvo Penta marine engines and certain Volvo Cars B21 automotive engines.
What does "New (Old Stock)" mean?
New (Old Stock) or NOS means the part is brand new and has never been installed, but it may have been in storage for some time. The packaging may show signs of age, but the component itself is unused.
Why is the ring size (1.75 x 2.0 x 4.0 mm) so specific?
The ring dimensions are critical for creating a perfect seal within the cylinder. The top ring, second ring, and oil control ring have different profiles and sizes to manage compression, wipe excess oil, and transfer heat effectively. Using the correct size is essential for engine performance and longevity.
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
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
