KN23000-G | 1/2" One-Way Check Valve

1/2" CHECK VALVE – KN23000-G (MALE-FEMALE NPT, HEAVY DUTY)

PART NUMBER(S):

Fleet Products: KN23000-G | OE: KN23000, N13526AJ | Automann: 5396-KN23000 | Military Part Number:227788

DESCRIPTION:

Model: One-Way Check Valve
Vehicles: Universal fit for heavy-duty truck, tractor, and trailer air brake and auxiliary air systems. M35A3, M911 Oshkosh and other Military Vehicles. 
• Valve Type: Single (One-Way) Check Valve
• Function: Permits airflow in one direction only; isolates pressure to prevent backflow
• Port Configuration: 1/2" NPT – Female (inlet), Male (outlet)
• Overall Length: 2.47"
• Flow Direction: Unidirectional
• Mounting Style: In-line threaded installation
• Material: Heavy-duty metal body
• Weight: ~7 oz
• Performance/Technology: OEM-grade pressure isolation, includes Schrader where applicable
• System Integrity: Brand new, high-reliability design for air reservoir, compressor discharge, and general pneumatic circuits

Applications:
Designed for universal deployment across air brake and pneumatic systems in commercial trucks and trailers. Ideal for isolating compressor discharge pressure, preventing system backflow, and maintaining directional flow integrity in air tanks or accessory manifolds. Compatible with pup trailer dollies and multi-reservoir setups.

CROSS-REFERENCE(S):

KN23000, KN23000-G, WAKN23000, 5396-KN23000, N13526AJ, H-30082, PROVA-23000, MIDKN23000, BX800372, D0TA2B170A, E6HZ2B170A, 800372, 227717, 227788, 227866, 227871, 228194, 276421, 276422, 282571, 5003980, 5003981, 5003982, 5003983, 5003984, 5003985, 5003986, R955KN23000N, R955KN23000X, R955KN227871, R955KN227871N, R955KN227871X, 9340990010, 9341990010, 9341990030, 0320001, 320001, 4064, 40640, 4066, 40660, EM-40640, EM-40660, LCV-4064, LCV-4066, 170.227871, 170.KN23000, AM170KN23000, 10200, 10200-1/2, 10200-12, 102001/2, 1020012, 14591, 1030-8, TV800372, WA227871, 20QE1159, 20QE1330, 20QE186, 20QE186A, 20QE186B, 20QE186C, 865753R, ZAC227871, 2R-0980, 4D9498, 7D6936, K295-64, WM774, WM774A, 3081458, 8073938, 4820-00-866-9309, 4820008669309, 4820-00-633-3523, 4820-01-103-9643, 901824R91, 12378831, 11669271, 865753R92, 593370, 18180FX, N13526H, 10922157, 213964, L1A11, 901824R91, 12378831, 11669271, 865753R92, 593370, 18180FX, N13526H, 10922157, 213964,

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:

✔ Install inline where directional airflow is required
✔ Prevents backflow – use to isolate pressure zones in system
✔ Ports: 1/2" NPT – female inlet, male outlet
✔ Includes Schrader valve (where applicable)
✔ Use standard NPT torque and thread sealing practices
✔ Repairable – use kit RN10CH for maintenance
✔ Confirm flow direction before installation

WHY CHOOSE FLEET PRODUCTS | KBR - HEAVY DUTY TRUCK & TRAILER PARTS?