Thread: Replacement interval for Donaldson filter elements

I believe it's a personal thing.
If you look at the EMEI it says to "clean" every 10,000 or 24 months.
Some filter experts say an air cleaner is most efficient at 80% plugged (blocked) so your better off going by the air filter restriction gauge.
Other people may clean it every day or every second day when working in very dusty conditions.
It really does depend on the environment your working in.
I personally would do it every 20k kms or earlier on condition.
Hope this helps

P.S. I know it's been posted on here before but I can't find it, does anyone have the filter cross Reference chart for the 4x4 and 6x6's filters for Donaldson ?

Thanks in advance,

Tristan H


Just catching the perentie bug.

1990 Perentie 6x6 Air Defence GS ARM 51867
1996 6X6 Infantry Carrier Hard Top ARN 202238
1991 4X4 Regional Force Surveillance Soft Top (RFSV) ARN51673

I pulled the air filter housing out the other night and removed the existing primary and safety elements (both Donaldson units). They were installed in late August 2011 based on the date scribbled in permanent marker on each. I was very surprised at what good condition both were in; certainly far cleaner than I would have expected for 4 years in service. Maybe Towsville-based vehicles didn't hit the dirt too much.
I installed a new primary and safety element (both Fleetguard units) in order to benchmark them, and reset the Servi-signal indicator.
I will hopefully get the Donaldson units chemically cleaned for use a spares/ next time replacement.
Cheers, Dave

Originally Posted by TK_Co

I believe it's a personal thing.
If you look at the EMEI it says to "clean" every 10,000 or 24 months.
Some filter experts say an air cleaner is most efficient at 80% plugged (blocked) so your better off going by the air filter restriction gauge.
Other people may clean it every day or every second day when working in very dusty conditions.
It really does depend on the environment your working in.
I personally would do it every 20k kms or earlier on condition.
Hope this helps

P.S. I know it's been posted on here before but I can't find it, does anyone have the filter cross Reference chart for the 4x4 and 6x6's filters for Donaldson ?

Thanks in advance,

Tristan H


Just catching the perentie bug.

1990 Perentie 6x6 Air Defence GS ARM 51867
1996 6X6 Infantry Carrier Hard Top ARN 202238
1991 4X4 Regional Force Surveillance Soft Top (RFSV) ARN51673

Tristan, Both 4x4 and 6x6 share the same secondary or safety element, but have different numbers for the primary one. Its actually the same filter with the plastic cyclone fin setup on the opposite end of the filter. I will post up the Donaldson part numbers on Saturday when I get back home.

Thanks Brian,
And I've found that the turbo and non turbo engines have different engine oil filters too which surprised me. I thought I was going to get away with carrying the same filters in the shed for all 3 vehicles.


Just catching the perentie bug.

1990 Perentie 6x6 Air Defence GS ARM 51867
1996 6X6 Infantry Carrier Hard Top ARN 202238
1991 4X4 Regional Force Surveillance Soft Top (RFSV) ARN51673

While we're on the topic, which Servi-signal indicator should I be using? Mine doesn't have one at all...

Originally Posted by TK_Co

Thanks Brian,
And I've found that the turbo and non turbo engines have different engine oil filters too which surprised me. I thought I was going to get away with carrying the same filters in the shed for all 3 vehicles.


Just catching the perentie bug.

1990 Perentie 6x6 Air Defence GS ARM 51867
1996 6X6 Infantry Carrier Hard Top ARN 202238
1991 4X4 Regional Force Surveillance Soft Top (RFSV) ARN51673

Yes, that's true. Yet a lot of the na truck engines had the setup same as the 6by.

Originally Posted by Judo

While we're on the topic, which Servi-signal indicator should I be using? Mine doesn't have one at all...

Hopefully someone will post up the Donaldson part number. I am away from home atm so don't have access to my manuals.

Originally Posted by Bearman

Hopefully someone will post up the Donaldson part number. I am away from home atm so don't have access to my manuals.

Hope your not working too hard Brian !! 😄


Just catching the perentie bug.

1990 Perentie 6x6 Air Defence GS ARM 51867
1996 6X6 Infantry Carrier Hard Top ARN 202238
1991 4X4 Regional Force Surveillance Soft Top (RFSV) ARN51673