Description
MODEL 9 QE CHECK VALVE KIT DROP IN LINE
PART NUMBER(S):
Fleet Products: 5000457 (New) | Replaces OE: OE: 5000457BXW
DESCRIPTION:
Model: Model 9 QE Check Valve Kit
Vehicles: Kenworth trucks, commercial trucks and buses with Model 9 air dryers
• Thread size: 3/4"
• Mounting style: Drop-in line, vertical installation
• Type: One-way check valve kit
• Designed for Model 9 air dryer assemblies
• Helps prevent backflow in 4-line air dryer systems
Applications: Designed to maintain air system pressure by preventing reverse air flow in Model 9 air dryer assemblies. Suitable for Kenworth trucks and other commercial trucks or buses using compatible 4-line Model 9 air dryer systems.
CROSS-REFERENCE(S):
5000457, 5000457BXW, FP5000457, 7-5000457, TR-5000457, TP5000457, AS5000457, SC5000457, PP5000457, ST5000457, PHD5000457, PH5000457, VIP5000457, FC5000457, HDA5000457, A-5000457
A cross-reference listing means this part may be a suitable replacement for the listed part numbers. Always verify fitment before installation.
IMPORTANT INSTALLATION NOTES:
✔ Always depressurize air system before servicing or installing valve kit
✔ Verify 3/4" thread size for correct fitment in Model 9 air dryer
✔ Ensure vertical orientation for proper valve function during installation
✔ Replace all included O-rings and seals to maintain system integrity and prevent leaks
Warranty Information
