439-4547: VALVE-CHECK
439-4776: In-Line Check Valve
![439-4777: 1 3/16\" X 1 3/16\" Check Valve](https://www.cat-oem.com/uploadfile/2024/08/CM20201228-c59ae-03c18.jpg "439-4777: 1 3/16\\" X 1 3/16\\" Check Valve")
439-4777: 1 3/16\" X 1 3/16\" Check Valve
442-4349: VALVE
443-3889: VALVE AS-CHE
443-4954: VALVE AS
![443-6656: 3/4\" X 3/4\" Check Valve](https://www.cat-oem.com/uploadfile/2024/08/CM20220427-39b26-b67ca.jpg "443-6656: 3/4\\" X 3/4\\" Check Valve")
443-6656: 3/4\" X 3/4\" Check Valve
444-1418: VALVE-CHECK
444-6586: VALVE GP-CHE
445-2772: VALVE CHECK
![447-1817: 9/16\" Check Valve](https://www.cat-oem.com/uploadfile/2024/08/CM20201228-29d30-6df55.jpg "447-1817: 9/16\\" Check Valve")
447-1817: 9/16\" Check Valve
447-3733: VALVE-CHECK
