21646645 Air Filter for Volvo Penta D31 D41 AD31 AD41 TMD31 TMD41 TAMD31 TAMD41 | JLM Marine

Air Filter for Volvo Penta D31 D41 AD31 AD41 TMD31 TMD41 TAMD31 TAMD41 | JLM Marine

This high-quality aftermarket air filter is engineered for Volvo Penta marine diesel engines, including the D31, D41, AD31, AD41, TMD31, TMD41, TAMD31, and TAMD41 series. Designed to meet OEM specifications, this filter ensures optimal air intake and engine protection across a wide range of applications.

This air filter directly replaces Volvo Penta OEM part numbers 21646645 and 3582358, as well as Sierra part number 18-7908, providing reliable cross-brand compatibility for your engine maintenance needs.

• Direct-fit replacement for multiple Volvo Penta engine models
• Easy installation with OEM-compatible dimensions
• Ensures clean air intake for optimal combustion and engine longevity

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

• 1 × Air Filter Insert

Installation Guide

1. Ensure the engine is off and cool before beginning installation.
2. Locate the air filter housing on your Volvo Penta engine; it is typically near the air intake manifold.
3. Remove the cover or housing clamps using the appropriate screwdriver or wrench.
4. Carefully lift out the old air filter insert and inspect the housing for debris or dirt.
5. Clean the inside of the air filter housing with a dry, lint-free cloth to remove any contaminants.
6. Position the new air filter insert into the housing, ensuring it seats properly and fits snugly.
7. Reinstall the housing cover and secure all clamps or fasteners to OEM torque specifications.
8. Verify that all connections are tight and that the filter is seated correctly before starting the engine.
9. Start the engine and listen for any unusual air intake noise that might indicate improper installation.
10. Perform a visual inspection to confirm no air leaks around the filter housing.

Troubleshooting & FAQ

Q: How do I confirm this air filter fits my Volvo Penta engine?
A: Check the compatible engine models table above to verify your specific engine designation (e.g., TAMD41, AD31, etc.). Cross-reference the OEM part numbers 21646645 or 3582358 with your engine's service manual or the old filter to ensure compatibility.

Q: How often should I replace the air filter on my Volvo Penta diesel engine?
A: Replacement intervals vary based on operating conditions, but Volvo Penta generally recommends inspecting the air filter every 200 hours of operation and replacing it annually or every 400 hours, whichever comes first. Replace more frequently if operating in dusty or harsh environments.

Q: What are the signs that my air filter needs replacement?
A: Common indicators include reduced engine power, increased fuel consumption, black exhaust smoke, difficulty starting, or visible dirt and damage on the filter element. If the filter appears heavily soiled or clogged during inspection, replace it immediately.

Q: Will this aftermarket air filter perform the same as the OEM Volvo Penta filter?
A: Yes, this aftermarket filter is manufactured to OEM specifications using comparable filtration media and dimensional tolerances. It provides equivalent air filtration performance and engine protection when installed and maintained correctly.

Q: Can I clean and reuse this air filter instead of replacing it?
A: This is a disposable paper-element air filter and is not designed to be cleaned or reused. Attempting to clean it may damage the filtration media and compromise engine protection; always replace with a new filter.

Q: Is this an OEM part or an aftermarket replacement?
A: 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.

Q: How fast do you ship and how much does it cost?
A: 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.

Q: What is your warranty and return policy?
A: 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.