Piston Kit – Fits Volvo Penta D4-300 & D6-400/435 Engines (Replaces 22915955, 21921546)
Piston Kit – Fits Volvo Penta D4-300 & D6-400/435 Engines (Replaces 22915955, 21921546) 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 Kit – Fits Volvo Penta D4-300 & D6-400/435 Engines (Repl...
Product Details
This aftermarket Piston Kit – Fits Volvo Penta D4-300 & D6-400/435 Engines is engineered for Volvo Penta D4-300 (300 HP), D6-400 (400 HP), and D6-435 (435 HP) diesel engines manufactured between 2006 and 2011. It serves as a direct-fit replacement to restore engine performance and reliability.
This component directly interchanges with Volvo Penta part numbers 22915955, 21921546, and 21711727.
- Installation is a standard OEM fit.
- Designed for use in diesel fuel engines.
- This is a standard size piston, not oversized.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By |
|---|---|---|
| Volvo Penta | 21711727 | 21921546 |
| Volvo Penta | 21921546 | 22915955 |
| Volvo Penta | 22915955 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This piston kit is designed exclusively for specific Volvo Penta D4 and D6 series diesel engines.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Volvo Penta | D4-300A-A | 300 | 4-Stroke | 2007–2008 | 22915955 | |
| Volvo Penta | D4-300A-C | 300 | 4-Stroke | 2008–2009 | 22915955 | |
| Volvo Penta | D4-300A-D | 300 | 4-Stroke | 2009–2010 | 22915955 | |
| Volvo Penta | D4-300A-E | 300 | 4-Stroke | 2010–2011 | 22915955 | |
| Volvo Penta | D4-300A-F | 300 | 4-Stroke | 2011+ | 22915955 | |
| Volvo Penta | D4-300D-A | 300 | 4-Stroke | 2007–2008 | 22915955 | |
| Volvo Penta | D4-300D-C | 300 | 4-Stroke | 2008–2009 | 22915955 | |
| Volvo Penta | D4-300D-D | 300 | 4-Stroke | 2009–2010 | 22915955 | |
| Volvo Penta | D4-300D-E | 300 | 4-Stroke | 2010–2011 | 22915955 | |
| Volvo Penta | D4-300D-F | 300 | 4-Stroke | 2011+ | 22915955 | |
| Volvo Penta | D4-300I-A | 300 | 4-Stroke | 2007–2008 | 22915955 | |
| Volvo Penta | D4-300I-C | 300 | 4-Stroke | 2008–2009 | 22915955 | |
| Volvo Penta | D4-300I-D | 300 | 4-Stroke | 2009–2010 | 22915955 | |
| Volvo Penta | D4-300I-E | 300 | 4-Stroke | 2010–2011 | 22915955 | |
| Volvo Penta | D4-300I-F | 300 | 4-Stroke | 2011+ | 22915955 | |
| Volvo Penta | D6-400A-E | 400 | 4-Stroke | 2011+ | 22915955 | |
| Volvo Penta | D6-400A-F | 400 | 4-Stroke | 2011+ | 22915955 | |
| Volvo Penta | D6-435D-A | 435 | 4-Stroke | 2006–2008 | 22915955 | |
| Volvo Penta | D6-435D-C | 435 | 4-Stroke | 2008–2009 | 22915955 | |
| Volvo Penta | D6-435D-D | 435 | 4-Stroke | 2009–2010 | 22915955 | |
| Volvo Penta | D6-435D-E | 435 | 4-Stroke | 2010–2011 | 22915955 | |
| Volvo Penta | D6-435D-F | 435 | 4-Stroke | 2011+ | 22915955 | |
| Volvo Penta | D6-435I-A | 435 | 4-Stroke | 2006–2008 | 22915955 | |
| Volvo Penta | D6-435I-C | 435 | 4-Stroke | 2008–2009 | 22915955 | |
| Volvo Penta | D6-435I-D | 435 | 4-Stroke | 2009–2010 | 22915955 | |
| Volvo Penta | D6-435I-E | 435 | 4-Stroke | 2010–2011 | 22915955 | |
| Volvo Penta | D6-435I-F | 435 | 4-Stroke | 2011+ | 22915955 | |
| Volvo Penta | D6-435I-SC-F | 435 | 4-Stroke | 2011+ | 22915955 | |
| Volvo Penta | D6-435I-TC-F | 435 | 4-Stroke | 2011+ | 22915955 | |
| Volvo Penta | D6-435I-WJ-F | 435 | 4-Stroke | 2011+ | 22915955 |
Technical Specs
- Product Type
- Piston Kit
- Installation
- Standard OEM Fit
- Fuel Type
- Diesel
- Dimensions
- 160.0mm x 20.0mm x 16.0mm
- Other Technical Attributes
- Standard size (not oversized)
What’s in the Box
- Piston Assembly (22915955)
- Piston Ring Kit (21711728)
- Gudgeon Pin (22083863)
- Snap Rings (982437)
Installation Notes
- Disconnect the battery and relieve any fuel system pressure.
- Drain the engine oil and coolant completely.
- Remove the cylinder head and oil pan to get access to the pistons.
- Carefully extract the old piston assemblies, marking their orientation and order.
- Inspect cylinder walls for scoring, wear, or damage. Hone cylinders if necessary.
- Assemble the new piston rings onto the new pistons as per the engine service manual.
- Install the new piston and connecting rod assemblies using ample assembly lubricant.
- Torque all connecting rod cap bolts and cylinder head bolts to the manufacturer’s specifications in the correct sequence.
- Reinstall all peripheral components in the reverse order of removal.
- Refill the engine with the correct grade and amount of new oil and coolant.
- Prime the oil system before starting. Once started, check for any oil or coolant leaks.
Troubleshooting & FAQ
How do I confirm if this piston is the correct size for my engine?
This is a standard size piston kit and is not oversized. Before ordering, we strongly recommend measuring your engine's cylinder bore to confirm it aligns with standard factory specifications. Do not install if your cylinders have been machined for oversized pistons.
What are common symptoms of a failing piston or piston rings?
Typical signs of piston-related failure include excessive oil consumption, blue or gray smoke from the exhaust, a noticeable loss of engine power, poor compression, and a persistent knocking or rattling sound from the engine block.
Does this kit include everything needed for one piston?
Yes, this is a comprehensive kit for a single piston. It includes the piston assembly, a complete piston ring kit, the gudgeon pin, and the necessary snap rings. Please refer to the "What’s in the Box" section for a full list of included parts.
What is the difference between part number 22915955 and 21921546?
Part number 22915955 is the latest OEM part number that directly supersedes the older versions 21921546 and 21711727. They are functionally identical, have the same specifications, and are fully interchangeable.
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.
