21702999 Air Filter for Volvo Penta D4 D6 D9 D11 | JLM Marine

Air Filter for Volvo Penta D4 D6 D9 D11 Engines – OEM #21702999

This air filter element is engineered for Volvo Penta D4, D6, D9, and D11 diesel engines, delivering reliable filtration to protect your engine from dust, debris, and contaminants. Designed as a direct replacement for multiple OEM part numbers, it ensures consistent airflow and optimal combustion performance across a wide range of industrial and marine applications.

Direct Replacement for Volvo Penta OEM #21702999, and supersedes part numbers #3818541, #3583654, and #117303. This aftermarket filter is built to OEM specifications, providing dependable engine protection and extended service life.

• Fits Volvo Penta D4, D6, D9, and D11 engine series
• Direct drop-in replacement for multiple Volvo part numbers
• High-efficiency filtration for diesel engine protection

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

Your purchase includes the following components:

• 1 × Air Filter Element

Installation Guide

1. Shut down the engine and allow it to cool completely before beginning work.
2. Locate the air filter housing assembly on your Volvo Penta engine.
3. Remove the clips, bolts, or latches securing the air filter cover, then lift off the cover carefully.
4. Pull out the old air filter element and inspect the housing interior for debris or contamination.
5. Clean the housing with a dry cloth; do not use solvents or compressed air that may damage seals.
6. Position the new air filter element into the housing, ensuring it seats evenly and securely.
7. Reinstall the air filter cover and fasten all clips or bolts to the manufacturer's torque specifications.
8. Check that all connections are tight and that no gaps exist around the filter seal.
9. Start the engine and listen for unusual airflow sounds or leaks around the air intake.
10. Monitor engine performance during initial operation to confirm proper installation and filtration.

Troubleshooting & FAQ

How do I confirm this air filter fits my Volvo Penta engine?
Check your engine model designation (D4, D6, D9, or D11) and compare it against the compatibility table above. You can also verify your original part number matches 21702999, 3818541, 3583654, or 117303.

How often should I replace the air filter on my Volvo Penta diesel engine?
Typically every 200–400 operating hours or annually, whichever comes first. Inspect the filter more frequently in dusty or harsh environments, and replace immediately if you notice reduced performance or visible contamination.

What are the signs that my air filter needs replacement?
Common indicators include reduced engine power, black exhaust smoke, increased fuel consumption, or difficulty starting. A visual inspection showing heavy dirt accumulation or damaged filter media also signals it's time to replace.

Will this aftermarket air filter perform the same as the Volvo OEM filter?
Yes. This filter is manufactured to OEM specifications using comparable filtration media and construction standards. It provides equivalent airflow, filtration efficiency, and durability for reliable engine protection.

Can I clean and reuse this air filter element?
No. This is a disposable paper-element filter designed for single use. Attempting to clean or wash it may damage the filtration media and compromise engine protection. Always replace with a new element at service intervals.

Is this an OEM part or an aftermarket replacement?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.