If you run Caterpillar air compressors,you must be worried about this problem: every time you try to save money on a cheap aftermarket alternative,the filter cost more money because of the low quality. Those flimsy paper filters clog up in 2 weeks flat, make your compressor overheat and shut down at unexpected time. And it lets dirt and grit sneak past to scratch up your expensive rotors and bearings. A single compressor breakdown from bad filtration can cost you thousands in repairs and lost productivity—not to mention the angry clients when you miss deadlines.Our company product SF-551H/4AL blue honeycomb air filter is built to fix this problem.It gives you factory-level protection at literally half the OEM price, and drops right in as a perfect direct replacement cross-reference part number for P554440, 2089065, 1000012122, 10000-12122, and CA30201. The unique honeycomb design traps way more dust than standard pleated filters, lasts 30% longer, and maintains steady airflow to keep your energy bills low and your machine running smooth.




What makes our filter the smart choice?
Guaranteed CAT fit: No more wasting money on filters that almost fit but leak unfiltered air
Premium honeycomb media: Outlasts standard paper filters by weeks in high-dust environments
Tough blue housing: Resists cracking, fading and chemical damage
Convenient 2-pack: Each carton has exactly 2 filters—perfect for routine maintenance and keeping a spare on had
100% new, tested units: No refurbished parts, no duds, no surprises
This filter works great for all Caterpillar air compressors used in construction, mining, quarrying, manufacturing and heavy industrial sites. It’s built to handle the toughest conditions you throw at it.
A little about us
We’ve been making heavy-duty filtration products for over 10 years, and Caterpillar equipment filters are one of our specialties. We don’t cut corners on materials or testing—every filter gets pressure-tested before it leaves our factory. We supply distributors, repair shops and fleet operators all over the world, and we offer bulk pricing for large orders. If you need custom packaging or have questions about fitment, just send us a message. We provide all kinds of filter including Oil Filter,Air Oil Separator,Line Filter and so on.We’ll get back to you within 24 hours.Feel free to contact us!
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Main Product:
Air Compressor Filters,
Construction Machinery Filters,
Generator Filters,
Heavy Duty Truck Filters,
Air Dryer ,
Air Compressor