Daulco 55070P004 is a non-OEM, drop-in replacement check valve for Locomotive OEM Part Number 40052436. Crack Pressure 25 PSIG. Reliably tested and available at other crack pressures.
Daulco 55070P003 is a non-OEM, drop-in replacement check valve for Locomotive OEM Part Number 40052437. Crack Pressure 100 PSIG. Reliably tested and available at other crack pressures.
Daulco 75070P004 is a non-OEM, drop-in replacement check valve for Locomotive OEM Part Number 40056117. Crack Pressure 120 PSIG. Reliably tested and available at other crack pressures.