Steel Hex Coupler 1/4" FPT 5000 PSI – OEM Replacement Fitting
Part Number: 2581
Category: Pressure Washer Parts → Fittings & Adapters → Steel Couplings
Type: Steel Hex Coupler
The Steel Hex Coupler 1/4" FPT (Part #2581) is a heavy-duty OEM replacement fitting designed to connect two male-threaded components in high-pressure pressure washer systems, pumps, hydraulic support equipment, compressed air systems, and industrial fluid transfer applications. Featuring 1/4-inch Female Pipe Thread (FPT) connections on both ends, this steel hex coupler provides a secure, leak-resistant connection while maintaining reliable fluid or air flow throughout the system.
Key Features & Benefits
- Genuine OEM replacement fitting
- 1/4" FPT x 1/4" FPT configuration
- Heavy-duty steel construction
- Rated up to 5000 PSI
- Hex body for easy wrench installation
- Leak-resistant threaded connections
- Connects two male-threaded components
- Suitable for high-pressure applications
- Compact and space-saving design
- Durable construction for demanding environments
- Long service life and reliable performance
Technical Specifications
Part Number: 2581
Product Type: Hex Coupler
Connection Size I: 1/4" FPT
Connection Size II: 1/4" FPT
Thread Type: Female Pipe Thread (FPT) x Female Pipe Thread (FPT)
Material: Steel
Maximum Pressure: 5000 PSI
OEM Replacement: Yes
Application: Component Connection and Thread Extension
Common Applications
- Pressure washer systems
- High-pressure pump assemblies
- Hydraulic support systems
- Compressed air systems
- Pressure gauge installations
- Industrial fluid transfer equipment
- Chemical application equipment
- Water supply systems
- Agricultural equipment
- Wash-down systems
- Commercial cleaning equipment
Performance Benefits
- Provides secure connection between male-threaded components
- Supports high-pressure operation up to 5000 PSI
- Durable steel construction for demanding environments
- Leak-resistant threaded connections
- Easy installation with integrated hex body
- Supports system modifications and extensions
- Reliable performance under pressure
- Long-lasting service life
Signs Replacement May Be Needed
Replace the coupler if you notice:
- Damaged or stripped threads
- Fluid or air leaks
- Visible corrosion or rust
- Cracks or deformation in the fitting body
- Loose connections
- Difficulty maintaining a proper seal
- Excessive wear from repeated installation
Installation Notes
- Shut off system pressure before servicing.
- Inspect all mating threads for wear or damage.
- Apply appropriate thread sealant or PTFE thread tape.
- Thread both male fittings into the coupler by hand.
- Tighten securely using a wrench on the hex body.
- Avoid overtightening to prevent thread damage.
- Pressurize the system and inspect for leaks.
Important: Verify compatibility with your system's thread sizes and operating pressure requirements before installation. Always ensure the fitting's pressure rating meets or exceeds system operating pressure.
Maintenance Recommendations
- Inspect threaded fittings regularly for leaks.
- Check for corrosion or physical damage during maintenance.
- Replace damaged or worn couplers promptly.
- Keep threads clean and free from debris.
- Verify proper sealing after servicing.
- Monitor fitting integrity during operation.
