Air Filter Insert – Fits Volvo Penta D4, D6, D9, D11 Diesel Marine Engines (Replaces 21702999, 3818541, 3583654)
Air Filter Insert – Fits Volvo Penta D4, D6, D9, D11 Diesel Marine Engines (Replaces 21702999, 3818541, 3583654) 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.).
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
Air Filter Insert – Fits Volvo Penta D4, D6, D9, D11 Diesel Marine ...
Product Details
This high-performance Air Filter Insert – Fits Volvo Penta D4, D6, D9, D11 Marine Engines (Replaces 21702999) is designed for a direct fit on all Volvo Penta D4, D6, D9, and D11 diesel marine engines. It ensures your engine receives clean air, crucial for optimal combustion, fuel efficiency, and longevity. Regular replacement helps protect sensitive engine components from airborne contaminants.
It serves as a direct replacement for Volvo Penta part numbers 21702999, 3818541, and 3583654, and interchanges with aftermarket references HIFI-FILTER SA6122, CM-FILTER CMA2889, and FNI 2020661.
- Engineered for direct, hassle-free installation.
- Designed specifically for marine diesel engine environments.
- Maintains engine performance by ensuring proper airflow.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By | Notes |
|---|---|---|---|
| Volvo Penta | 3583654 | 3818541 | |
| Volvo Penta | 3818541 | 21702999 | |
| Volvo Penta | 21702999 | Current part number. | |
| HIFI-FILTER | SA6122 | Aftermarket Reference | |
| CM-FILTER | CMA2889 | Aftermarket Reference | |
| FNI | 2020661 | Aftermarket Reference |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Volvo Penta D9 and D11 Models: Please note that these larger engines require the installation of two (2) air filter inserts.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Volvo Penta | D4-180I-B | 180 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-180I-C | 180 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-180I-D | 180 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-180I-E | 180 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-180I-F | 180 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-210A-A | 210 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-210A-B | 210 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-210I-A | 210 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-210I-B | 210 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-225A-B | 225 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-225A-C | 225 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-225A-D | 225 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-225A-E | 225 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-225A-F | 225 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-225I-B | 225 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-225I-C | 225 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-225I-D | 225 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-225I-E | 225 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-225I-F | 225 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260A-A | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260A-B | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260A-C | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260A-D | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260A-E | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260A-F | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260D-B | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260D-C | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260D-D | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260D-E | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260D-F | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260I-A | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260I-B | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260I-C | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260I-D | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260I-E | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-260I-F | 260 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-300A-A | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-300A-C | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-300A-D | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-300A-E | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-300A-F | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-300D-A | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-300D-C | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-300D-D | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-300D-E | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-300D-F | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-300I-A | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-300I-C | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-300I-D | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-300I-E | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D4-300I-F | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-280A-A | 280 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-280A-B | 280 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-280A-C | 280 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-280A-D | 280 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-280A-E | 280 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-280I-A | 280 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-280I-B | 280 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-280I-C | 280 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-280I-D | 280 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-280I-E | 280 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-300A-F | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-300D-F | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-300I-F | 300 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-310A-A | 310 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-310A-B | 310 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-310A-C | 310 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-310A-D | 310 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-310A-E | 310 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-310D-B | 310 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-310D-C | 310 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-310D-D | 310 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-310D-E | 310 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-310I-A | 310 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-310I-B | 310 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-310I-C | 310 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-310I-D | 310 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-310I-E | 310 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-330A-B | 330 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-330A-C | 330 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-330A-D | 330 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-330A-E | 330 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-330A-F | 330 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-330D-B | 330 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-330D-C | 330 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-330D-D | 330 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-330D-E | 330 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-330D-F | 330 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-330I-B | 330 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-330I-C | 330 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-330I-D | 330 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-330I-E | 330 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-330I-F | 330 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-350A-A | 350 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-350A-B | 350 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370A-B | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370A-C | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370A-D | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370A-E | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370A-F | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370D-A | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370D-B | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370D-C | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370D-D | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370D-E | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370D-F | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370I-A | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370I-B | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370I-C | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370I-D | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370I-E | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-370I-F | 370 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-400A-E | 400 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-400A-F | 400 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-435D-A | 435 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-435D-C | 435 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-435D-D | 435 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-435D-E | 435 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-435D-F | 435 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-435I-A | 435 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-435I-C | 435 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-435I-D | 435 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-435I-E | 435 | 4-Stroke | 21702999 | |
| Volvo Penta | D6-435I-F | 435 | 4-Stroke | 21702999 | |
| Volvo Penta | D9 | 4-Stroke | 21702999 | Requires 2 filter inserts | |
| Volvo Penta | D11 | 4-Stroke | 21702999 | Requires 2 filter inserts |
Technical Specs
- Product Type
- Air Filter Insert
- Installation
- Direct Replacement
- Fuel Type
- Diesel
- Warranty
- 1 Year (aftermarket parts)
What’s in the Box
- 1 x Air Filter Insert (Replaces 21702999/3818541/3583654)
Installation Notes
- Ensure the engine is off and cool to the touch before starting.
- Locate the air filter housing. It is typically a large plastic or metal box connected to the engine's air intake.
- Open the air filter housing by releasing the clips, screws, or bolts securing the cover.
- Carefully remove the old air filter insert, noting its orientation.
- Clean any dirt or debris from inside the housing with a clean cloth. Do not use compressed air, which can force dirt into the intake.
- Insert the new air filter. Ensure it is seated correctly and forms a tight seal.
- Important for D9 & D11 Engines: These models require the installation of two (2) filter inserts. Ensure both are replaced.
- Replace the housing cover and secure it tightly with the original clips, screws, or bolts.
- Start the engine and check for any unusual noises or air leaks around the housing.
Troubleshooting & FAQ
How do I know if this air filter will fit my engine?
This air filter is designed for all Volvo Penta D4, D6, D9, and D11 diesel engines. To confirm, please check your engine model against the comprehensive list in the "Engine & Model Compatibility" section above. You can also cross-reference your existing part number with those in our "Part Number Matrix."
Why do Volvo Penta D9 and D11 engines require two filters?
The D9 and D11 series engines have a larger displacement and higher air intake requirement. To meet this demand and ensure adequate filtration, Volvo Penta designed their air intake systems to use two filter inserts simultaneously. You must purchase and replace both at the same time.
What are the signs of a clogged or failing air filter?
Common symptoms include decreased engine performance and horsepower, lower fuel efficiency, black smoke from the exhaust, and the engine running rough or misfiring. Visual inspection may also show a filter that is dark, dirty, or clogged with debris.
How often should I replace my engine's air filter?
Replacement intervals can vary based on operating conditions (e.g., dusty or salty environments). As a general guideline, it's best to inspect the air filter during regular service intervals and replace it at least once a year or more frequently if it appears dirty.
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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