Looking for the best crankcase ventilation systems to keep your engine running clean and strong?
Here are clear, engaging picks that guide you toward reliable options for boosting your engine’s health.
Crankcase ventilation systems are key to keeping your engine clean and running smoothly. They stop oil and dirt from building up, which can harm your engine over time. With the right system, your car stays strong and reliable.
These systems come in many styles, from universal kits to model-specific parts. Whether you drive a BMW, Freightliner, or GM vehicle, there’s a perfect fit for you. Each one is designed to work well and last long.
Choosing the best crankcase ventilation system can feel tricky, but we’re here to make it simple. Our guide will show you the top options and help you decide with ease. Get ready to boost your engine’s health and drive with confidence.
List of Top 10 Crankcase Ventilation Systems
| Image | Title | Best For | Price |
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Crankcase Evacuation System w/Chrome Breathers |
This Crankcase Evacuation System is perfect for anyone who wants clean engine flow and simple, solid parts. It fits people who want a fast, easy way to add chrome breathers and boost engine performance. |
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A-Premium 5 PCS Crankcase Vent Valve Breather Hose Kit (PCV) Ventilation Separator Compatible with BMW Models – E36 E46 E39 E60-320i 320Ci 323i 325i 325Ci 328i 328Ci 330i 330xi 525i 528i 530i X3 Z3 |
This A-Premium 5 PCS Crankcase Vent Valve Breather Hose Kit is perfect for BMW owners who want a reliable and easy-to-install replacement part. It’s ideal for models like the E36, E46, E39, and more, ensuring a perfect fit and peace of mind on the road. |
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A4720108262 Crankcase Ventilation Separator with Gasket, for Freightliner Compatible with Detroit DD13/15 Mack MP8, 2010-Present |
Freightliner truck operators who want clean engines and lower oil costs will like this part. It fits DD13, DD15 and Mack MP8 engines perfectly. |
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A4720108262 Diesel Oil Crankcase Ventilation Separator with Gasket for Freightliner Compatible with Detroit DD13 DD15 Mack MP8 Engines 2010-Present Replaces A4720102362 A4720102862 |
This product is perfect for fleet owners, diesel mechanics, and anyone who needs a reliable, long‑lasting crankcase ventilation separator for DD13, DD15, or MP8 engines. It’s ideal for people who want smooth engine performance with less wear and easy upkeep. |
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Crankcase Ventilation Valve Oil Separator Hose Compatible with BMW E46 E60 E39 X3 X5 320i, 323i, 325, 325i 328i, 330i, 525i, 528i CCV PCV Valve Ventilation Separator 5 Piece Value Kit 11611432559 |
This is perfect for BMW owners who need a fast, easy fix for a worn crankcase vent hose. It is a smart choice for anyone who wants a direct fit, simple install, and better engine care. |
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Moroso 68780 Oil Separator Breather |
This Moroso Oil Separator Breather is perfect for anyone who wants to keep their engine clean and running smoothly. It’s great for plumbing your crankcase ventilation system or as a direct replacement for older setups. |
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Crankcase Ventilation Hose Vent Compatible with BMW M550i xDrive 2018-2020 |
This product is perfect for BMW owners who want a simple, reliable way to keep their engine running smooth and clean. It’s great for anyone who needs a quick, easy replacement for a worn or damaged vent hose. |
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SHOZHO Crankcase Ventilation Hose Vent Compatible with BMW G12 750Li xDrive 750i 750X M550iX 2016 2017 2018 2019 Crankcase Breather Hose Replaces 11158635529 11158601614 11158601620 11158601621 |
This crankcase ventilation hose is perfect for BMW owners who need a reliable replacement part. It’s easy to install and fits specific BMW models like the 750Li xDrive, 750i, 750X, and M550iX from 2016 to 2019. |
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GM Genuine Parts 12648138 Positive Crankcase Ventilation (PCV) Tube |
Perfect for GM owners who want a true part that fits right and is easy to install. Get it at a dealer or service center. |
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TNJPSEK 2 Pcs 11810EA200 PCV Valve Compatible with Ni-ssan QX50 QX56 QX80 Select Vehicles Engine, Positive Crankcase Ventilation Valve Replace 118106N202 118106N201 |
This product is perfect for drivers who want smooth engine airflow and steady performance in their Ni-ssan or Infiniti. It’s great for anyone who needs a strong, long‑lasting PCV valve that fits their vehicle the right way. |
Detailed Reviews
Find the Best Crankcase Ventilation Systems that blend quality and price.
They are easy to install and last long.
Our reviews give clear reasons to pick.
Read more to choose your ideal kit.
1. Crankcase Evacuation System w/Chrome Breathers
The Crankcase Evacuation System is a universal kit that keeps your engine clean. It comes with chrome breathers that fit into 1.25″ holes easily.
This kit includes two breathers, two grommets, two valves, and two collector tubes. Everything has a chrome finish for a sleek look.
| Pros | Cons |
|---|---|
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Perfect For:
This Crankcase Evacuation System is perfect for anyone who wants clean engine flow and simple, solid parts. It fits people who want a fast, easy way to add chrome breathers and boost engine performance.
Ready to Purchase?
2. A-Premium 5 PCS Crankcase Vent Valve Breather Hose Kit (PCV) Ventilation Separator Compatible with BMW Models – E36 E46 E39 E60-320i 320Ci 323i 325i 325Ci 328i 328Ci 330i 330xi 525i 528i 530i X3 Z3
Keep your BMW running smoothly with the A-Premium 5 PCS Crankcase Vent Valve Breather Hose Kit. This PCV ventilation separator is compatible with many BMW models, ensuring a perfect fit. It helps maintain engine performance by managing crankcase pressure.
The kit includes all necessary parts for a complete replacement. Each component is designed to match original specifications, making installation simple and straightforward. You’ll save time and effort with this trustworthy solution.
A-Premium offers a one-year unlimited-mileage guarantee, so you can buy with confidence. This meticulously crafted PCV valve ensures peace of mind on the road.
| Pros | Cons |
|---|---|
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Perfect For:
This A-Premium 5 PCS Crankcase Vent Valve Breather Hose Kit is perfect for BMW owners who want a reliable and easy-to-install replacement part. It’s ideal for models like the E36, E46, E39, and more, ensuring a perfect fit and peace of mind on the road.
Ready to Purchase?
3. A4720108262 Crankcase Ventilation Separator with Gasket, for Freightliner Compatible with Detroit DD13/15 Mack MP8, 2010-Present
This crankcase ventilation separator keeps your engine clean. It helps stop oil from getting into the intake. It works with Detroit DD13/DD15 and Mack MP8 engines.
It helps your engine last longer. It also cuts maintenance costs.
| Pros | Cons |
|---|---|
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Perfect For:
Freightliner truck operators who want clean engines and lower oil costs will like this part. It fits DD13, DD15 and Mack MP8 engines perfectly.
Ready to Purchase?
4. A4720108262 Diesel Oil Crankcase Ventilation Separator with Gasket for Freightliner Compatible with Detroit DD13 DD15 Mack MP8 Engines 2010-Present Replaces A4720102362 A4720102862
This crankcase ventilation separator fits Detroit DD13/DD15 and Mack MP8 engines. It keeps oil mist out of the intake. It helps your engine stay clean and strong.
It cuts down on oil and dirt that can harm engine parts. This helps your engine run smooth.
It installs fast with a direct-fit design. The kit includes a gasket for easy setup.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for fleet owners, diesel mechanics, and anyone who needs a reliable, long‑lasting crankcase ventilation separator for DD13, DD15, or MP8 engines. It’s ideal for people who want smooth engine performance with less wear and easy upkeep.
Ready to Purchase?
5. Crankcase Ventilation Valve Oil Separator Hose Compatible with BMW E46 E60 E39 X3 X5 320i, 323i, 325, 325i 328i, 330i, 525i, 528i CCV PCV Valve Ventilation Separator 5 Piece Value Kit 11611432559
The Crankcase Ventilation Valve Oil Separator Hose is a direct-fit part for many BMW models. It helps move gas the right way and can help keep the engine running well.
It is made for E46, E60, E39, X3, and X5 models. It also fits many 320i, 323i, 325i, 328i, 330i, 525i, and 528i cars.
This kit includes 5 pieces and uses OEM-style parts. It is made for easy install, strong use, and long life.
| Pros | Cons |
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Perfect For:
This is perfect for BMW owners who need a fast, easy fix for a worn crankcase vent hose. It is a smart choice for anyone who wants a direct fit, simple install, and better engine care.
Ready to Purchase?
6. Moroso 68780 Oil Separator Breather
The Moroso 68780 Oil Separator Breather keeps your engine clean and running smooth. It fits any valve cover with a 1.22-inch hole and comes with a sturdy rubber grommet. It installs fast and stays tight.
It works great for routing your crankcase ventilation into the air cleaner. It also replaces the breather used in the No. 25900 Crankcase Evacuation System. The internal foam disc helps stop oil from getting pulled in.
It is simple. It is strong. It is a universal fit.
| Pros | Cons |
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Perfect For:
This Moroso Oil Separator Breather is perfect for anyone who wants to keep their engine clean and running smoothly. It’s great for plumbing your crankcase ventilation system or as a direct replacement for older setups.
Ready to Purchase?
7. Crankcase Ventilation Hose Vent Compatible with BMW M550i xDrive 2018-2020
Keep your BMW running smoothly with this crankcase ventilation hose vent. It’s designed for specific models, ensuring a perfect fit and reliable performance.
This part replaces multiple OEM numbers, making it a cost-effective solution. It’s made from durable rubber, built to handle engine demands and last long.
Easy to install, connects engine parts, and routes fluids efficiently. A must-have for BMW owners.
| Pros | Cons |
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Perfect For:
This product is perfect for BMW owners who want a simple, reliable way to keep their engine running smooth and clean. It’s great for anyone who needs a quick, easy replacement for a worn or damaged vent hose.
Ready to Purchase?
8. SHOZHO Crankcase Ventilation Hose Vent Compatible with BMW G12 750Li xDrive 750i 750X M550iX 2016 2017 2018 2019 Crankcase Breather Hose Replaces 11158635529 11158601614 11158601620 11158601621
This crankcase hose is made for a smooth, clean engine. It fits key BMW G12 models from 2016 to 2019. It keeps your car running strong.
It uses quality materials for long life. It installs fast with a simple swap.
Each part meets strict test standards for safety and performance. It replaces worn hoses with ease. It helps keep your engine in good shape.
| Pros | Cons |
|---|---|
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Perfect For:
This crankcase ventilation hose is perfect for BMW owners who need a reliable replacement part. It’s easy to install and fits specific BMW models like the 750Li xDrive, 750i, 750X, and M550iX from 2016 to 2019.
Ready to Purchase?
9. GM Genuine Parts 12648138 Positive Crankcase Ventilation (PCV) Tube
This PCV tube keeps your engine running clean and smooth. It fits your GM vehicle with exact precision.
It installs fast. It seals tight. It works every day.
This tube is built for GM vehicles and tested for real use. It fits your car with ease and keeps airflow steady.
Your engine stays happy with this simple, strong part. It’s made to last and made to fit.
| Pros | Cons |
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Perfect For:
Perfect for GM owners who want a true part that fits right and is easy to install. Get it at a dealer or service center.
Ready to Purchase?
10. TNJPSEK 2 Pcs 11810EA200 PCV Valve Compatible with Ni-ssan QX50 QX56 QX80 Select Vehicles Engine, Positive Crankcase Ventilation Valve Replace 118106N202 118106N201
This PCV valve helps keep your engine clean and steady. It fits many Ni-ssan and Inf-initi models with exact OEM match for easy install.
It fits many cars. It works with wide model years. It keeps air flow smooth.
Made with strong PA66 material, it holds up under heat and use. It helps your engine run with clear air and steady pressure.
| Pros | Cons |
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Perfect For:
This product is perfect for drivers who want smooth engine airflow and steady performance in their Ni-ssan or Infiniti. It’s great for anyone who needs a strong, long‑lasting PCV valve that fits their vehicle the right way.
Ready to Purchase?
Buying Guide
Choosing the best crankcase ventilation system is easy with the right guide. It helps your engine stay clean and strong.
Buying a crankcase ventilation system means picking the right fit and style for your car. Here are the key factors to consider:
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Compatibility: Make sure the system fits your car model perfectly. Universal kits are flexible, but model-specific parts offer the best fit and performance.
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Material Quality: Look for durable materials like high-grade rubber or metal. Good materials last longer and handle heat and pressure better.
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Ease of Installation: Choose a system that is simple to install. Kits with clear instructions and all necessary parts save time and effort.
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Oil and Dirt Separation: The system should effectively separate oil and dirt from the crankcase gases. This keeps your engine cleaner and reduces wear.
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Breather Design: Chrome breathers or rubber grommets should fit snugly and prevent leaks. A good breather also adds a sleek look if visible.
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Valve Functionality: The PCV valve or separator must regulate pressure well to avoid engine damage. It should maintain smooth airflow.
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Warranty and Support: A product with a warranty gives peace of mind. Look for brands that offer good customer support and guarantees.
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Maintenance Needs: Some systems require less upkeep. Choose one that fits your maintenance habits and keeps your engine healthy longer.
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Price vs. Value: Balance cost with quality and features. The cheapest option may not last, while the most expensive might offer extra benefits.
By focusing on these factors, you can pick a crankcase ventilation system that keeps your engine running smoothly and reliably for years.