I hope you read this link in the threads: https://motorcycleinfo.calsci.com/FilterXRef.html#5
Are you completely sure about the part number, just asked google AI (I can't rely on it) but it mentions its not compatible:
The Purolator 14006 filter will not fit a Honda CB1100 EX motorcycle.The Honda CB1100 EX requires a metric M20x1.5 thread pitch oil filter. The Purolator 14006 uses a completely different standard 13/16-16 UNC thread pitch, which is typically designed for American automotive V8 engines (such as older Chevrolet/GMC models).
Bypass Valve:
None
Purolator Boss PBL14610: Yes (approx. 14–18 PSI)
If you want to use a premium, high-mileage Purolator Boss filter on your motorcycle, the correct part number is the Purolator Boss PBL14610"
T
(07-24-2026, 01:08 PM)1973cb750 Wrote: i use a Purolator boss no issues PBL 14006 car filter but no issues ever the bypass etc are very similar i ran the same on my cb600f with 100k hard miles on it
Are you completely sure about the part number, just asked google AI (I can't rely on it) but it mentions its not compatible:
The Purolator 14006 filter will not fit a Honda CB1100 EX motorcycle.The Honda CB1100 EX requires a metric M20x1.5 thread pitch oil filter. The Purolator 14006 uses a completely different standard 13/16-16 UNC thread pitch, which is typically designed for American automotive V8 engines (such as older Chevrolet/GMC models).
Bypass Valve:
None
Purolator Boss PBL14610: Yes (approx. 14–18 PSI)
If you want to use a premium, high-mileage Purolator Boss filter on your motorcycle, the correct part number is the Purolator Boss PBL14610"
T