Steel Bushing 3/4" MPT x 1/2" FPT 2000 PSI – OEM Replacement Fitting
Part Number: 4375
Category: Pressure Washer Parts → Fittings & Adapters → Steel Bushings
Type: Steel Reducing Bushing
The Steel Bushing 3/4" MPT x 1/2" FPT (Part #4375) is a heavy-duty OEM replacement fitting designed to reduce pipe thread sizes while maintaining a secure, leak-resistant connection in pressure washer systems, pumps, hydraulic equipment, compressed air systems, and industrial fluid transfer applications. Featuring a 3/4-inch Male Pipe Thread (MPT) exterior and a 1/2-inch Female Pipe Thread (FPT) interior, this reducing bushing allows larger threaded ports to accommodate smaller fittings, valves, gauges, hoses, and accessories.
Key Features & Benefits
- Genuine OEM replacement fitting
- Reducing bushing design
- 3/4" MPT x 1/2" FPT connection
- Heavy-duty steel construction
- Rated up to 2000 PSI
- Leak-resistant threaded connections
- Adapts larger ports to smaller thread sizes
- Compact and space-saving design
- Suitable for commercial and industrial applications
- Durable steel construction
- Long service life and dependable performance
Technical Specifications
Part Number: 4375
Product Type: Reducing Bushing
Connection Size I: 3/4" MPT
Connection Size II: 1/2" FPT
Thread Type: Male Pipe Thread (MPT) x Female Pipe Thread (FPT)
Material: Steel
Maximum Pressure: 2000 PSI
Configuration: Reducing Bushing
OEM Replacement: Yes
Application: Thread Size Reduction and Component Adaptation
Common Applications
- Pressure washer systems
- Pump assemblies
- Hydraulic equipment
- Compressed air systems
- Water transfer systems
- Industrial fluid transfer equipment
- Chemical application equipment
- Agricultural equipment
- Wash-down systems
- Commercial cleaning equipment
- Pressure gauge and accessory installations
Performance Benefits
- Reduces thread sizes without additional adapters
- Provides secure and leak-resistant connections
- Supports operating pressures up to 2000 PSI
- Durable steel construction for demanding environments
- Simplifies plumbing modifications and repairs
- Compact design minimizes space requirements
- Reliable long-term performance
- Helps maintain system integrity
Signs Replacement May Be Needed
Replace the fitting if you notice:
- Fluid or air leaks
- Damaged or stripped threads
- Visible corrosion or rust
- Cracks or deformation
- Difficulty obtaining a proper seal
- Loose or unreliable connections
- Excessive wear from long-term service
Installation Notes
- Shut off system pressure before servicing.
- Inspect all threads for damage or wear.
- Apply appropriate thread sealant or PTFE thread tape.
- Thread the male end into the larger receiving port.
- Install the mating component into the female threaded opening.
- Tighten securely using the proper tools.
- Pressurize the system and inspect for leaks.
Important: Verify compatibility with your system's thread sizes and pressure requirements before installation. Always ensure the fitting's pressure rating meets or exceeds system operating pressure.
Maintenance Recommendations
- Inspect fittings regularly for leaks.
- Check threaded connections during routine maintenance.
- Replace damaged or worn fittings promptly.
- Keep threads clean and free from debris.
- Verify proper sealing after servicing.
- Monitor fitting condition during operation.
