Air Filter Insert – Fits Volvo Penta D4, D6, D9, D11 Diesel Marine Engines (Replaces 21702999, 3818541, 3583654)

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.

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.

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

1. Ensure the engine is off and cool to the touch before starting.
2. Locate the air filter housing. It is typically a large plastic or metal box connected to the engine's air intake.
3. Open the air filter housing by releasing the clips, screws, or bolts securing the cover.
4. Carefully remove the old air filter insert, noting its orientation.
5. 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.
6. Insert the new air filter. Ensure it is seated correctly and forms a tight seal.
7. Important for D9 & D11 Engines: These models require the installation of two (2) filter inserts. Ensure both are replaced.
8. Replace the housing cover and secure it tightly with the original clips, screws, or bolts.
9. Start the engine and check for any unusual noises or air leaks around the housing.

Troubleshooting & FAQ

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.