Description
KN23040-G – 3/4" CHECK VALVE
PART NUMBER(S):
Fleet Products: KN23040-G | OE: KN23040, N13526J
DESCRIPTION:
Model: Inline Air Brake Check Valve
Vehicles: Compatible with universal truck and trailer air brake systems
• Function: One-way check valve to allow air flow in one direction only
• Inlet/Outlet Ports: 3/4" NPT (male-female thread)
• Body Length: 2.31"
• Mounting Style: Inline installation
• Material: High-durability brass construction
• Operating Use: Prevents backflow to protect system pressure zones
• OEM Part Number: N13526J
Applications:
Used across air brake systems in truck and trailer applications to isolate pressure and prevent reverse airflow. Commonly installed in service and supply lines requiring directional flow control.
CROSS-REFERENCE(S):
KN23040, RKN23040, N13526J, UMKN23040, WAKN23040, MIDKN23040, 170.KN23040
A cross-reference listing means this part may be a compatible replacement for these part numbers based on OEM or distributor data.
IMPORTANT INSTALLATION NOTES:
✔ Designed for inline use with male-female 3/4" NPT ports
✔ Install in correct direction of airflow to ensure proper function
✔ Do not use with non-air systems or where bidirectional flow is required
✔ Repairable using RN10Y kit when service is needed
WHY CHOOSE FLEET PRODUCTS | KBR - HEAVY DUTY TRUCK & TRAILER PARTS?
• Canadian-owned since 1985• Trusted by fleets, mechanics, and B2B partners across North America
• Fast, Reliable Shipping Across North America
• Competitive pricing with Core Return Refunds
• Price Match Guarantee | Find a better price? We'll beat the difference by 10%!
Warranty Information
