Quick Connect Plug 3/8" MNPT Zinc-Plated Steel – OEM Replacement Part
Part Number: 4780
Category: Pressure Washer Fittings → Quick Connect Couplers → Quick Connect Plugs
Type: Zinc-Plated Steel Male Thread Quick Connect Plug
The Quick Connect Plug 3/8" MNPT Zinc-Plated Steel is a durable OEM replacement fitting designed to provide fast, secure connections for pressure washer hoses, spray guns, lances, surface cleaners, and other high-pressure cleaning accessories. Constructed from zinc-plated steel, this quick connect plug delivers reliable performance, corrosion resistance, and long service life in commercial and industrial pressure washing applications.
Key Features & Benefits
- OEM-quality quick connect plug
- Durable zinc-plated steel construction
- Industry-interchangeable quick connect design
- Corrosion-resistant plated finish
- Fast tool-free connection and disconnection
- 3/8" MNPT threaded connection
- Rated up to 5000 PSI with compatible brass sockets
- Suitable for commercial and industrial applications
- Compatible with a wide variety of pressure washer accessories
- Designed for dependable long-term performance
Technical Specifications
Product Type: Quick Connect Plug
Material: Zinc-Plated Steel
Thread Size: 3/8" MNPT
Thread Type: Male National Pipe Thread
Connection Style: Industry Interchangeable Quick Connect
Maximum Pressure: 5000 PSI (with compatible brass socket)
Application: High-Pressure Fluid Connections
OEM Replacement: Yes
Typical Applications
- Pressure washer hose assemblies
- Spray gun connections
- Lance and wand hookups
- Surface cleaner connections
- High-flow pressure washer systems
- Commercial cleaning equipment
- Industrial wash-down systems
- Equipment repairs and maintenance
- Pressure washer plumbing installations
Performance Advantages
- Allows rapid accessory changes without tools
- Zinc-plated finish helps resist corrosion and wear
- Supports demanding high-pressure cleaning applications
- Provides secure, leak-resistant connections
- Reduces downtime during equipment setup and maintenance
- Compatible with industry-standard quick connect fittings
- Suitable for high-flow pressure washer systems
- Helps improve workflow efficiency and productivity
- Built for long-term commercial and industrial use
Maintenance Recommendations
- Inspect the plug regularly for wear, corrosion, or damage.
- Ensure proper engagement with compatible quick connect sockets before operation.
- Replace worn or damaged fittings immediately.
- Keep connection surfaces clean and free of dirt and debris.
- Apply appropriate thread sealant when installing threaded accessories.
- Periodically inspect the complete quick connect assembly for leaks and excessive wear.
