800374 | Single Check Valve (SC-3 Style)

800374 – SC-3 SINGLE CHECK VALVE, 1/4" FEMALE INLET, 1/8" MALE OUTLET

PART NUMBER(S):

Fleet Products: 800374 | OE: 060-800374, 5003526, 109907 | Automann: –

DESCRIPTION:

Model: SC-3 Single Check Valve
Vehicles: Suitable for universal truck and trailer air brake systems
• Valve Type: In-line, one-way SC-3 check valve
• Inlet Port: 1/4" NPT (female)
• Outlet Port: 1/8" NPT (male)
• Material: Brass construction
• Operating Temp: -40°F to 200°F
• Length: 2.04"
• Height: 0.81"
• Weight: 0.19 lbs (0.09 kg)
• Function: Prevents reverse air flow; isolates pressure in case of system failure upstream
• Mounting: In-line (no bracket required)
• Features: Includes thread safety caps for protection before installation
• System Role: Used between reservoirs or other devices in brake circuits to preserve downstream pressure
• Replaces Valve Models: SC1, SC2

Applications:
Designed for use in air brake systems in heavy-duty trucks and trailers. Protects downstream air reservoirs or circuits by blocking reverse pressure flow in the event of failure upstream. Suitable for various line configurations and piping requirements in commercial brake systems.

CROSS-REFERENCE(S):

800374, 060-800374, 5003526, 109907, 275569, 5003979, 745-800374, 5012944, ZAC800374, BW 800374, Keene K800374

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:

✔ Ensure directional arrow on valve aligns with intended airflow direction
✔ Do not over-torque brass threads during installation
✔ Use thread sealant suitable for air brake systems
✔ Inspect caps and threads before installation
✔ Mount in-line with proper support to avoid vibration fatigue

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