Steel Adapter 3/8" FPT x 1/4" MPT 4000 PSI – OEM Replacement Fitting
Part Number: 2579
Category: Pressure Washer Parts → Fittings & Adapters → Steel Adapters
Type: Steel Reducer Adapter
The Steel Adapter 3/8" FPT x 1/4" MPT (Part #2579) is a heavy-duty OEM replacement fitting designed to connect components with different thread sizes in pressure washer systems, pumps, hydraulic support equipment, compressed air systems, and industrial fluid transfer applications. Featuring a 3/8-inch Female Pipe Thread (FPT) connection and a 1/4-inch Male Pipe Thread (MPT) connection, this adapter provides a secure, leak-resistant transition between fittings, gauges, valves, regulators, hoses, and other threaded components.
Key Features & Benefits
- Genuine OEM replacement fitting
- 3/8" FPT x 1/4" MPT configuration
- Heavy-duty steel construction
- Rated up to 3000 PSI
- Leak-resistant threaded connections
- Adapts different thread sizes
- Compact and space-saving design
- Suitable for high-pressure applications
- Durable construction for demanding environments
- Long service life and dependable performance
- Ideal for repairs, upgrades, and custom assemblies
Technical Specifications
Part Number: 2579
Product Type: Reducer Adapter
Connection Size I: 3/8" FPT
Connection Size II: 1/4" MPT
Thread Type: Female Pipe Thread (FPT) x Male Pipe Thread (MPT)
Material: Steel
Maximum Pressure: 3000 PSI
OEM Replacement: Yes
Application: Thread Adaptation and Component Connection
Common Applications
- Pressure washer systems
- Pump assemblies
- Pressure gauge installations
- Hydraulic support systems
- Compressed air systems
- Industrial fluid transfer equipment
- Chemical application equipment
- Water supply systems
- Agricultural equipment
- Wash-down systems
- Commercial cleaning equipment
Performance Benefits
- Connects components with different thread sizes
- Supports high-pressure system operation
- Durable steel construction for demanding environments
- Leak-resistant threaded connections
- Simplifies equipment modifications and repairs
- Allows installation of gauges, valves, and accessories
- Reliable performance under pressure
- Long-lasting service life
Signs Replacement May Be Needed
Replace the adapter if you notice:
- Damaged or stripped threads
- Fluid or air leaks
- Visible corrosion or rust
- Cracks or deformation in the fitting body
- Loose component connections
- Difficulty achieving 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 the adapter into the mating connection by hand.
- Tighten securely using the appropriate wrench.
- Connect the corresponding component and verify alignment.
- 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 adapters promptly.
- Keep threads clean and free from debris.
- Verify proper sealing after servicing.
- Monitor fitting integrity during operation.
