Part# 08-06022
MFR Model# CP-48111C
ChallengerReplacesPart Number
Challenger Oil Filter CP-48111C
3/4-16 Thread w/nipple w/o relief valve


Note: Please confirm standard aircraft oil filter application guide to determine correct oil filter model for your engine / aircraft.

The filter element is made from medical grade, type 304 stainless steel micronic filter cloth providing unmatched protection against oil contamination and resultant engine damage.

A rare earth magnet is installed in the top of the element for magnetic pre-filtering of the oil. The unique twist lock design allows for easy disassembly, inspection and cleaning. The quad-ring gasket doubles the seal between the filter and the engine . The filter housing is carved out of a solid piece of 6061 T6 billet aluminum with cooling fins, which not only looks good but aids in dissipating heat.


  • Cleanable and Reusable
  • High Flow Rate
  • Unique Twist Lock Design
  • Exteriors Fins
  • Unaffected by Water, Heat, or Pressure
  • Safety Wire Attachments 360 degrees
  • Environmentally Friendly
  • Accessories
  • Frequently Purchased With
  • Customers Also Viewed


Never had a problem with the O-ring (5 years and 8 oil changes) Value depends on how often you change your oil. Changing the element after 5 years of use per STC. (or 1250 hours whichever happens first). Much easier than filters that you have to cut open to see the element. The downside is that Challenger cartridge rated for 30 microns and the paper filters are rated around 20 microns.

Victor V
April 9, 2020

This filter is great! Easy to remove and inspect the element. No more cutting open the filter and the mess. Takes 5 minutes to inspect and reinstall. No leaks from the seal that Ive experienced. I have put these on both my aircraft with no regrets.

Chris S
October 1, 2016

I've had this filter on my hot rod 0375 for 5 years never have I had to change the gasket at filter cleaning !! I change oil every 25-30 hrs and clean the filter .i fly about 400 hrs a year .

Mike O
August 2, 2015

Good solid unit. Decreased indicated oil temp about 1 oil temp gauge needle width in summer. Easy to disassemble and clean. Only negative: You MUST change the rubber seal each oil change - otherwise it will leak (personal experience).

Ed L
April 1, 2014


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: How do I order more of the quad ring gaskets? Challenger part # CP-623

Use our part number 08-07186. This is the CHALLENGER OIL FILTER QUAD SL. You can search for them directly on our website.

Q: Regarding Challenger FAA-PMA Oil Filter, how often (generally) must the element be changed?

Per vendor: It generally needs to be changed every 1250 hours or 5 years of engine operation. Whichever comes first.

Q: What micron value filter is this? 2, 5,10?

This will have a 30 micron value.

Q: Is the outer housing on the Challenger FAA-PMA lifetime Oil Filter System compatible with the remote Airwolf oil filter conversion?

The Challenger CP48108C can physically be used in place of a Champion CH48108-1 filter, but the installation manual for Airwolf remote kits refer to the Champion CH48108 and CH48109 filters. You may want to consult with your A&P mechanic to insure the remote kit and Challenger filter are approved to be used with each other.

Q: Can you tell me the diameter and length of the outer surface of the filter assy, part # 08-06021?

The diameter is 2.93" & length 3.76" including the nut.

Q: What is the overall length and diameter of part No. 08-06019 and part No. 08-06017?

All of the oil filters, except for the Rotax, are the same measurements 3.71" length and 2.925" diameter.

Q: Do you need to submit a 337 to use this?

These are PMA'd or STC'd for most aircraft and engine combinations. You would just need to make sure your engine and aircraft are on the application guide. We always recommend consulting with your A&P installer to confirm legality of the install.

Q: What does 5 yrs of engine operation actually mean? 5 yrs since install or 5 yrs cumulative time on the eng?

5 years since install or 1200 hours, whichever comes first.

Q: Can you tell me the difference between Part number: 08-06021 and 08-06022? They say the exact same thing, but have different part numbers?

08-06021 replaces a "110" filter and the 08-06022 replaces a slightly longer "111" filter.

Q: Please explain the difference between with a relief valve and without a relief valve. Also, after the oil is drained from the engine how much residential oil will remain in the filter that is installed in a horizontal position? In other words-will I have a mess on my hands when I check the screen.

First, what oil filter part number does he use now, the only difference in ours and our competitors is our prefix and -C, CP-xxxxx-C. You do not purchase an oil filter based relief valve or not. The part number determines the thread size, stud or not, relief valve or not. Also, on our website there is a suggestion under the link to testimonials that you use a 1 gallon ziplock bag.

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