Stainless Steel Quick Connect Plug 3/8" FNPT 7500 PSI – OEM Replacement Part

Part Number: 4959
Category: Pressure Washer Fittings → Quick Connect Couplers → Quick Connect Plugs
Type: Stainless Steel Female Thread Quick Connect Plug

The Stainless Steel Quick Connect Plug 3/8" FNPT is a premium OEM replacement fitting designed for fast, secure connections in high-pressure pressure washer systems, industrial cleaning equipment, and fluid transfer applications. Constructed from high-quality stainless steel, this quick connect plug offers exceptional durability, corrosion resistance, and reliable performance in demanding operating environments.

Key Features & Benefits

• OEM-quality quick connect plug
• Premium stainless steel construction
• Industry-interchangeable quick connect design
• Excellent corrosion and rust resistance
• Fast tool-free connection and disconnection
• 3/8" FNPT threaded connection
• Rated up to 7500 PSI with compatible stainless steel socket
• Suitable for high-pressure cleaning systems
• Ideal for commercial and industrial applications
• Designed for long service life in demanding environments

Technical Specifications

Product Type: Quick Connect Plug

Material: Stainless Steel

Thread Size: 3/8" FNPT

Thread Type: Female National Pipe Thread

Connection Style: Industry Interchangeable Quick Connect

Maximum Pressure: 7500 PSI (with compatible stainless steel 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
• Industrial cleaning equipment
• Commercial pressure washing systems
• Marine cleaning applications
• Chemical transfer and wash-down systems
• Equipment maintenance and repairs

Performance Advantages

• Allows rapid accessory changes without tools
• Stainless steel construction resists corrosion and chemical exposure
• Suitable for harsh, wet, and corrosive environments
• Supports demanding high-pressure cleaning applications
• Provides secure, leak-resistant connections
• Reduces downtime during setup and maintenance
• Compatible with industry-standard quick connect systems
• Helps improve workflow efficiency and productivity
• Built for long-term professional and industrial use

Maintenance Recommendations

• Inspect the plug regularly for wear, corrosion, or damage.
• Verify 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.