About the 6221473550 oil filter

If your Chicago Pneumatic compressor is due for service, the 6221473550 oil filter is the drop-in replacement element to fit. It matches the original part's filtration spec so the compressor keeps running inside its design performance window.

Enhance the performance and longevity of your Chicago Pneumatic compressors with our high-quality Oil Filter (Part Number: 6221473550). Designed to meet or exceed OEM specifications, these Oil Filter ensure optimal efficiency and reliability. Specifically engineered for Chicago Pneumatic compressors, they provide superior filtration, protecting your equipment from contaminants and wear. Each Oil Filter undergoes comprehensive quality control to deliver consistent and dependable performance. Benefit from competitive pricing, bulk order discounts, and prompt delivery for all your compressor spares.

What the 6221473550 does in your Chicago Pneumatic compressor

The oil filter protects the lubrication circuit in an oil-injected screw compressor. Oil does three jobs at once — it cools the air end, seals the running clearance between the rotors, and conveys away wear particles. The oil filter stops those particles circulating back into the bearings and rotors. A loaded or bypassing oil filter is one of the quietest causes of premature wear in the entire machine, because it rarely produces a loud symptom before the damage is done.

The 6221473550 is a scheduled-service consumable, not a repair item. Fitted as part of the Chicago Pneumatic machine's standard maintenance, it keeps the Chicago Pneumatic compressor inside its design operating band between services.

When to replace this element

• Change together with every oil change, typically 1000, 2000, or 4000 hours per the OEM manual.

• Stand-alone change is never recommended — the element and the fill should move as one.

• After any mechanical repair, run briefly then change oil and oil filter again to flush debris.

Signs it needs replacement

Replace on any of the above regardless of hour count. For this part, keeping a fresh element in stock before the interval arrives is the single cheapest insurance policy on the machine.

• A rising differential pressure across the oil filter on the gauge or controller.
• Lower oil pressure available at the bearings for the same machine load.
• Discharge temperature climbing above the machine's healthy baseline.
• Evidence of oil bypassing (unfiltered oil circulating) during normal running.

Direct-fit compatibility for Chicago Pneumatic

The 6221473550 is cross-referenced for these Chicago Pneumatic OEM part numbers and models:

• Atlas Copco : Atlas Copco GA 250 from 2016 Chicago Pneumatic : Chicago Pneumatic CPG 450
• Chicago Pneumatic CPG 380
• Chicago Pneumatic CPG 480 Kaeser : Kaeser M 270
• Kaeser DS 140
• Kaeser DSG 170
• Kaeser ES 250
• Kaeser ESD 361
• Kaeser DS 241
• Kaeser DSD 281
• Kaeser DSG 220
• Kaeser DS 171
• Kaeser ESD 301
• Kaeser DSD 201
• Kaeser GS 650 from s/n 652001
• Kaeser HS 760
• Kaeser DSD 141
• Kaeser GS 590 from s/n 591001 up to 592000
• Kaeser GS 650 from s/n 651001 up to 652000
• Kaeser DSB 200
• Kaeser ESG 280
• Kaeser DSB 141
• Kaeser FSG 560
• Kaeser ESG 240
• Kaeser DS 220
• Kaeser FSG 360
• Kaeser ESB 250
• Kaeser FSD 360
• Kaeser DS 170
• Kaeser ES 280
• Kaeser DSG 200

Fitting and verification

• Check the thread, sealing ring, and anti-drainback arrangement against your old element.

• Pre-fill the new element with oil where the design allows, before screwing it on.

• Torque the element to spec — overtightening deforms the seal, under-tightening leaks.

• Note the fresh-element differential pressure as the baseline for the next service.

Ordering the 6221473550

Stocking the 6221473550 ahead of the interval keeps the service shutdown to a planned event. Confirm price and availability on WhatsApp.