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DNA High Performance Filters Air Filter Review: Practical crankcase vent upgrade

DNA Air Filter, Round Crank Case Vent Female, Outside Diameter: 16mm PN: CV-16M
4.7
[Male Round Design]  Precision male round profile for secure fit and easy installation.
[Compact 16mm Diameter]  16mm outside diameter offers space-saving compactness and broad compatibility.
[Consistent 50mm Diameters]  Both big and small sections measure 50mm for consistent alignment and balance.
[Optimal 44mm Length]  44mm length provides stable engagement without excess protrusion.
[Flange with Rubber Top]  20mm flange and rubber top ensure secure seating and vibration dampening.
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Automotive crankcase ventilation part promising a compact, specification-led replacement for 16mm fittings. Peace of mind for mechanics and home enthusiasts who need a neat rubber-top seal. Is the DNA High Performance Filters Air Filter the right fit for your crankcase vent setup?

⚡ At a Glance
  • Fit and Seal: 16mm outside diameter with rubber top and 20 mm flange for a secure connection
  • Best for: DIY mechanics and tuners replacing round crankcase vents with matching dimensions
  • Not ideal for: Applications that require integrated filtration or electrical breather components

Compact crankcase vent listed with a 16 mm outside diameter, 44 mm length and a rubber top. Flange measures 20 mm while outside diameters are recorded as 50 mm for both big and small entries.


Secure connection – with 16mm outside diameter and rubber top

Outside diameter specified as 16 mm pairs with a rubber top and a 20 mm flange to form a close-contact seal. Length of 44 mm keeps the assembly compact and limits how far the vent protrudes.

Reliable sealing suited to engine bays where a snug mechanical fit is important and space is limited.

Clear installation reference – thanks to 20mm flange and fixed length

A 20 mm flange provides a defined seating surface while the 44 mm overall length establishes consistent positioning during installation. Dimensions are explicit, allowing straightforward checks against existing parts.

Faster fitment checks and reduced guesswork when matching replacement vents to existing mounting points.

Flexible top surface – with rubber top

Top style listed as rubber top, offering a pliable contact area that tolerates vibration and minor misalignment. Outside diameter big and small are both listed as 50 mm, indicating consistent mating surfaces on larger sections.

A rubber top helps maintain a durable contact seal in environments prone to movement or oil splash.

✨ The 4 Key Reasons for DNA High Performance Filters Air Filter
  1. Outside Diameter 16mm – Matches specific 16mm crankcase vent fittings for direct replacement
  2. Rubber Top – Flexible seal reduces leaks from vibration and movement
  3. 20mm Flange – Defined seating surface aids accurate mounting and alignment
  4. 44mm Length – Compact profile prevents excessive protrusion into engine bay
📋 Technical Details at a Glance
  • Category: Automotive Parts and Accessories
  • Brand: DNA High Performance Filters
  • Product ID: B071WPG2G2
  • Part Number: CV-16M
  • Intended Application: Round crank case vent
❓ Frequently Asked Questions

Q: What size fitting does the vent use?

A: Outside diameter is listed as 16 mm, with a 44 mm length and a 20 mm flange included in the product details.

Q: Is the vent male or female?

A: The listing name includes 'Female' while the product descriptions specify 'Design: Male Round', so the provided information is inconsistent.

Q: What is the top style and flange size?

A: Top style is listed as rubber top and flange size is listed as 20 mm.

🏆 Our Verdict

Suitable for DIY mechanics and specialists replacing round crankcase vents that match the listed dimensions. Compact layout with a rubber top and defined flange gives a clear specification for direct replacements. Simple construction and common dimensions make it a practical, serviceable replacement likely to remain useful over time.