Differential Lock Valve | (3) 1/4in Push to Connect Fittings | Length 2.65in | Mack Air Control Switches Application
- Part number: FCV-5451-001
- OE MFG: MACK
- OEM Reference: 20QE4182
- Cross Reference: MACK : 20QE4168, 20QE4182, 25166547, 9538-32811; OTHER : 3281-1
- Product Class: Miscellaneous Controls
The PAI FCV-5451-001 Differential Lock Valve is listed for Mack air control switches applications and uses three 1/4-inch push-to-connect fittings in a 2.65-inch configuration. Differential lock valves are heavy duty diesel truck parts that control pneumatic commands within the differential-lock circuit, directing air to engage or release the locking function. Mack identifies 20QE4182 as the OEM reference; related Mack cross-references include 20QE4168 and 25166547.







