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Old 07-15-2021, 09:01 AM   #1
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ISL 400 air filter - DONALDSON - P537448

Asking for a little help on air filter - location of best deal - Just trying to find where most are getting the Air Filters from these days - Amazon seems to be the only place.

TIA,
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Old 07-15-2021, 09:53 AM   #2
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The air filter is provided by the chassis builder, not Cummins, so different installations of an ISL engine may have different filters. They all meet or exceed some minimum airflow spec set by Cummins, but size and shape differs. You need to be sure you have identified what your rig uses, not some other owner.



Does it have to be a Donaldson filter? There are other makers of that same size/shape filter. Find them using a filter cross-reference tool like this one:
https://www.airfilter-crossreference...ALDSON/P537448



There are lots of sources for the size & type filters typically used with an ISL 400. myfleetfilters.com, Napa stores or online,everythingtruckparts.com, etc. Just Google the brand and number filter you want.
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Old 07-15-2021, 10:17 AM   #3
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Quote:
Originally Posted by Gary RVRoamer View Post
The air filter is provided by the chassis builder, not Cummins, so different installations of an ISL engine may have different filters. They all meet or exceed some minimum airflow spec set by Cummins, but size and shape differs. You need to be sure you have identified what your rig uses, not some other owner.



Does it have to be a Donaldson filter? There are other makers of that same size/shape filter. Find them using a filter cross-reference tool like this one:
https://www.airfilter-crossreference...ALDSON/P537448



There are lots of sources for the size & type filters typically used with an ISL 400. myfleetfilters.com, Napa stores or online,everythingtruckparts.com, etc. Just Google the brand and number filter you want.
Corect filter,

Cross referenced filters,


DONALDSON P537448 replacement filters

BALDWIN PA2722
CARQUEST 88893
FLEETGUARD AH8503
LUBER-FINER LAF1848


Thanks for the list of online suppliers, Really hopeing to find someone who has recently found the Best Deal

Thanks Again,
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Old 07-15-2021, 10:21 AM   #4
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I've always got that filter from NAPA,
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Old 07-15-2021, 11:28 AM   #5
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Last filter I bought like this was from Filter Barn but they are now out of business.


Your best bet would be to do a search on Ebay, Amazon, and google shopping and see what you can find as far as availability price & shipping. But make sure the filter is actually in stock, when I was looking for hydraulic filters most would list it but not in stock. Ended up buying from the Modern Shop,
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Old 07-15-2021, 03:55 PM   #6
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Quote:
Originally Posted by jacwjames View Post
Last filter I bought like this was from Filter Barn but they are now out of business.


Your best bet would be to do a search on Ebay, Amazon, and google shopping and see what you can find as far as availability price & shipping. But make sure the filter is actually in stock, when I was looking for hydraulic filters most would list it but not in stock. Ended up buying from the Modern Shop,
Filter barn was my go to - Usually there are a few spots that just have then priced lower than I've found so far - Clean enough for the 200 miles this year so hope someone just see's this and is also looking for the filter and shares His/Her find.


Thanks
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Old 07-16-2021, 08:47 AM   #7
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Filter Barn out of business??? Maybe some place/s will buy out inventory and resell for fast turn around on money. I have found best deals on EBay . Have checked Rock Auto for large filters but have caught some great clearance buys from them on common items.
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