Looking for the best oil mist separators to keep your truck’s engine running smoothly? We’ve got you covered with a list of top units for Volvo, Mack, and Freightliner trucks, ensuring clean air and long engine life for a smoother ride.
Drivers love powerful trucks but hate dirty vents. Oil mist clogs valves and hurts performance fast. These easy tools save money and time for every driver.
Expert owners trust clean air for long engine life. You will find the best components here. We list the top units for Volvo, Mack, and Freightliner trucks.
Explore these top picks for a smoother ride. Your machine thanks you for the clean breaths it takes.
List of Top 10 Oil Mist Separators
| Image | Title | Best For | Price |
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WIHMCCK Crankcase Ventilation Oil Separator Compatible with Volvo D13 Mack MP8 2014-2025 | Replaces 22877306 21373547 20532891 | PCV Valve & Oil Mist Separator Kit with Gasket |Heavy Duty Truck Engine |
This WIHMCCK Crankcase Ventilation Oil Separator is perfect for truck owners and fleet managers who need a reliable, long-lasting solution for their Volvo D13 or Mack MP8 engines. It’s ideal for heavy-duty trucks and professional mechanics looking for an exact fit and easy installation. |
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WIHMCCK Crankcase Ventilation Oil Separator Compatible with Freightliner Cascadia Detroit DD13 DD15 Mack MP8 2010-2025 | Replaces A4720108262 A4720104262 A4720102862 | PCV Valve & Oil Mist Separator |
This WIHMCCK Crankcase Ventilation Oil Separator is perfect for truck owners and fleet managers who want to keep their engines running smoothly. It’s ideal for Freightliner and Mack trucks with Detroit DD13, DD15, or MP8 engines from 2010 to 2025. |
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Raodelupe 532571826 Oil Mist Separator Element Fit For Busch RD0200A-0360A |
This oil mist separator element is perfect for anyone using Busch RD0200A-0360A or R5 Series Vacuum Pumps. It’s easy to install and built to last, ensuring smooth operation for your equipment. |
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Crankcase Oil Separator Compatible with Volvo D13 Engine 2008-2013, MP8 & VNL/VNM – OE# 21122541/21475228 / 20763721 – Complete Kit with Gasket |
This item is perfect for volvo d13 truck owners and mechanics who want to improve engine performance with minimal effort. It helps keep the crankcase clean so trucks stay on the road longer without expensive fixes. |
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Kel’thuzad 965415 Oil Mist Separator Filter Element Fits for Becker |
This filter is perfect for workshop owners and factory technicians who use Becker vacuum pumps. It keeps your machines clean and running strong every day. |
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KF25/KF40 Oil Mist Filter for Vacuum Pump Exhaust |
This oil mist filter is perfect for anyone using a vacuum pump in a lab or workshop. It keeps the air clean and prevents oil mist pollution. |
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Vacuum Pump Oil Mist Separator 532571826 RD0200A RD0240A RD0300A |
This vacuum pump oil mist separator is perfect for anyone using RD0200A, RD0240A, or RD0300A pumps. It keeps your workspace clean and safe by removing oil mist. |
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Crankcase Oil Separator Replacement for MACK MP7/MP8 2010+ – Compatible with 21122539, 12098264, 20763721, 20707295 – Fits Pinnacle, Granite, Titan, Anthem – Heavy Duty CCV Breather with Gasket |
This is for Mack truck owners. It is for fleet bosses and shop hands. |
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Oil Mist Separator Filter 0532141267 –Air Filter Coalescing Element V532141267 Exhaust Cartridge 0532.141.267 Compatible with Busch R5 and RA Series – RA 0063 F and RA 0100 F Vacuum Pumps |
This Oil Mist Separator Filter is perfect for anyone using Busch R5 or RA series vacuum pumps, especially models RA 0063 F and RA 0100 F. It’s ideal for removing fine oil aerosols and keeping your equipment running smoothly. |
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Detailed Reviews
Discover the top 10 Oil Mist Separators in our expert-curated guide. Each product is thoroughly reviewed for performance, durability, and value. Whether you need heavy-duty reliability or affordable efficiency, this guide helps you find the perfect fit. Read on to make an informed choice and keep your engine or workspace cleaner and safer.
1. WIHMCCK Crankcase Ventilation Oil Separator Compatible with Volvo D13 Mack MP8 2014-2025 | Replaces 22877306 21373547 20532891 | PCV Valve & Oil Mist Separator Kit with Gasket |Heavy Duty Truck Engine

The WIHMCCK Crankcase Ventilation Oil Separator is a perfect fit for Volvo D13 and Mack MP8 engines (2014–2025). It replaces OEM parts like 22877306 and 21373547. This kit includes everything needed for easy installation.
It removes oil mist and contaminants, reducing sludge and extending engine life. The durable materials ensure long-term reliability under extreme conditions.
This professional-grade separator maintains optimal crankcase pressure, protecting engine seals and components. It’s built to last and tested rigorously for leak-proof performance.
| Pros | Cons |
|---|---|
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Perfect For:
This WIHMCCK Crankcase Ventilation Oil Separator is perfect for truck owners and fleet managers who need a reliable, long-lasting solution for their Volvo D13 or Mack MP8 engines. It’s ideal for heavy-duty trucks and professional mechanics looking for an exact fit and easy installation.
Ready to Purchase?
2. WIHMCCK Crankcase Ventilation Oil Separator Compatible with Freightliner Cascadia Detroit DD13 DD15 Mack MP8 2010-2025 | Replaces A4720108262 A4720104262 A4720102862 | PCV Valve & Oil Mist Separator

This oil separator captures harmful mist to keep your truck engine safe. It replaces the exact OEM parts for your specific vehicle.
The trap unit stops bad gas from clogging your air system. You get a new gasket included in the box. It works well on Freightliner and Mack trucks.
Its strong seals handle tough heat and heavy vibrations. This kit helps your engine use less oil. We back your purchase with a one-year warranty.
| Pros | Cons |
|---|---|
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Perfect For:
This WIHMCCK Crankcase Ventilation Oil Separator is perfect for truck owners and fleet managers who want to keep their engines running smoothly. It’s ideal for Freightliner and Mack trucks with Detroit DD13, DD15, or MP8 engines from 2010 to 2025.
Ready to Purchase?
3. Raodelupe 532571826 Oil Mist Separator Element Fit For Busch RD0200A-0360A

This is a oil mist part. Part number is 532571826. It fits Busch RD0200A pumps.
It is very strong. Each one is well tested.
You get a one year guarantee. We help you fast. Buy with trust now.
| Pros | Cons |
|---|---|
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Perfect For:
This oil mist separator element is perfect for anyone using Busch RD0200A-0360A or R5 Series Vacuum Pumps. It’s easy to install and built to last, ensuring smooth operation for your equipment.
Ready to Purchase?
4. Crankcase Oil Separator Compatible with Volvo D13 Engine 2008-2013, MP8 & VNL/VNM – OE# 21122541/21475228 / 20763721 – Complete Kit with Gasket

The Crankcase Oil Separator is a direct replacement for Volvo D13, MP7, and MP8 engines. It fits 2008–2013 models and includes a mounting gasket for easy installation.
This separator removes oil mist, reduces engine wear, and protects turbochargers. It keeps engines cleaner and more efficient.
Each unit is rigorously tested and comes with a 12-month warranty. It’s a complete kit, ready to install and save you time and maintenance costs.
| Pros | Cons |
|---|---|
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Perfect For:
This item is perfect for volvo d13 truck owners and mechanics who want to improve engine performance with minimal effort. It helps keep the crankcase clean so trucks stay on the road longer without expensive fixes.
Ready to Purchase?
5. Kel’thuzad 965415 Oil Mist Separator Filter Element Fits for Becker

The Kel’thuzad 965415 Oil Mist Separator Filter Element is a perfect fit for Becker Vacuum Pumps. It replaces part numbers 965415, 96541500, and 96541500000.
This filter element is made to OEM standards and tested at the factory. It works with many Becker models, like U1.300, U2.300, and more. The package includes one filter.
| Pros | Cons |
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Perfect For:
This filter is perfect for workshop owners and factory technicians who use Becker vacuum pumps. It keeps your machines clean and running strong every day.
Ready to Purchase?
6. KF25/KF40 Oil Mist Filter for Vacuum Pump Exhaust

The KF25/KF40 Oil Mist Filter keeps your workspace clean. It traps 95% of oil mist from vacuum pump exhaust, preventing indoor pollution.
It has a clear plastic housing for easy filter checks. Choose KF25 for smaller pumps (6L/s) or KF40 for larger ones (8L/s).
| Pros | Cons |
|---|---|
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Perfect For:
This oil mist filter is perfect for anyone using a vacuum pump in a lab or workshop. It keeps the air clean and prevents oil mist pollution.
Ready to Purchase?
7. Vacuum Pump Oil Mist Separator 532571826 RD0200A RD0240A RD0300A

The Vacuum Pump Oil Mist Separator is a must-have tool for keeping your vacuum pump in top shape. It works with models RD0200A, RD0240A, and RD0300A.
This separator traps oil mist, prevents contamination, and extends pump life. It’s easy to install and use.
With this separator, your pump runs cleaner and lasts longer. It’s a simple solution for better performance.
| Pros | Cons |
|---|---|
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Perfect For:
This vacuum pump oil mist separator is perfect for anyone using RD0200A, RD0240A, or RD0300A pumps. It keeps your workspace clean and safe by removing oil mist.
Ready to Purchase?
8. Crankcase Oil Separator Replacement for MACK MP7/MP8 2010+ – Compatible with 21122539, 12098264, 20763721, 20707295 – Fits Pinnacle, Granite, Titan, Anthem – Heavy Duty CCV Breather with Gasket

The Crankcase Oil Separator Replacement is designed for MACK MP7/MP8 engines in trucks like Pinnacle, Granite, Titan, and Anthem. It’s a direct fit for models 2010 and newer, replacing OE parts like 21122539 and 20763721.
Built tough, it handles heavy-duty trucking demands. It separates oil mist from crankcase gases, cuts oil use, and keeps contaminants out.
This complete kit includes a gasket and hardware for easy installation. It protects your engine, extends its life, and comes with a 12-month warranty.
| Pros | Cons |
|---|---|
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Perfect For:
This is for Mack truck owners. It is for fleet bosses and shop hands.
Ready to Purchase?
9. Oil Mist Separator Filter 0532141267 –Air Filter Coalescing Element V532141267 Exhaust Cartridge 0532.141.267 Compatible with Busch R5 and RA Series – RA 0063 F and RA 0100 F Vacuum Pumps

The Oil Mist Separator Filter 0532141267 is a replacement part for Busch R5 and RA vacuum pumps. It’s OEM-compatible, ensuring a perfect fit and reliable performance.
This coalescing filter uses high-efficiency fiberglass media to remove fine oil aerosols. It works with Busch R5, RA, and RE series pumps, including RA 0063 F and RA 0100 F models.
Key specs: ~0.3 µm micron rating, NBR seal material, and 160–200 m³/h maximum airflow. Simple, effective, and built to last.
| Pros | Cons |
|---|---|
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Perfect For:
This Oil Mist Separator Filter is perfect for anyone using Busch R5 or RA series vacuum pumps, especially models RA 0063 F and RA 0100 F. It’s ideal for removing fine oil aerosols and keeping your equipment running smoothly.
Ready to Purchase?
10. PERFERATE KF25 Oil Mist Filter Vacuum Pump Exhaust Fume Separator with >95%
Perfect For:
This oil mist filter is perfect for anyone using vacuum pumps in labs, workshops, or factories. It keeps the air clean and protects your space from oil pollution.
Ready to Purchase?
Buying Guide
Trucks need clean air. Oil mist hurts parts. A good unit works well. Owners love clean machines. They save cash on oil. Their trucks run smooth.
Compatibility ensures safety. Match numbers well. Always read the list. Get the exact match.
Price matters much. Cheap parts cost more. Buy quality now. Save on repairs later.
Warranty gives peace. Fixes cover damage. You do not pay later.
Brand quality counts. Pick strong names. Trusts brands work hard.
Performance is key. It stops sludge. Air stays clean and pure.
Wear and tear drops. Clean parts last long. Dust stops going in.
Installation is easy. Kits come with parts. Work is quick and fast.
Check engine codes often. Bad parts show errors. Clean air helps them run.