This is Chicago Pneumatic part number CA139818 tune up kit, stocked at Crowder Supply as CP-CA139818. Buying the kit rather than individual pieces is usually the cheaper route once the machine is already apart.

Give us the model and serial off your machine and we will confirm the fit; the parts diagram hub and the Chicago Pneumatic tool range are the other two places to start. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.

• Part number: CA139818
• Manufacturer: Chicago Pneumatic
• Crowder SKU: CP-CA139818