22mm Screw Plug x 3/8" MPT Adapter – OEM Replacement Part

Part Number: 6314
Category: Pressure Washer Fittings → Hose Adapters → Threaded Plugs & Adapters
Type: Brass 22mm Screw Plug to Male Pipe Thread Adapter

The 22mm Screw Plug x 3/8" MPT Adapter is a durable OEM replacement fitting designed to connect pressure washer hoses, spray guns, pumps, and accessories equipped with 22mm threaded plug connections to components utilizing 3/8" Male Pipe Thread (MPT) fittings. Manufactured from high-quality brass, this adapter provides excellent durability, corrosion resistance, and dependable performance in residential, commercial, and industrial pressure washing applications.

Key Features & Benefits

• OEM-quality pressure washer adapter
• Durable brass construction
• Connects 22mm threaded plug fittings to 3/8" MPT connections
• Precision-machined for secure fitment
• Corrosion-resistant design
• Leak-resistant sealing performance
• 14mm yoke configuration
• Suitable for hot and cold water pressure washers
• Rated for demanding cleaning applications
• Ideal for equipment repairs, upgrades, and plumbing conversions

Technical Specifications

Product Type: Pressure Washer Adapter

Material: Brass

Connection 1: 22mm Screw Plug

Yoke Size: 14mm

Connection 2: 3/8" MPT

Thread Type: Male Pipe Thread

Maximum Pressure: 4000 PSI

Maximum Temperature: 250°F

Manufacturer: Gladiator

Application: Pressure Washer Hose & Accessory Connections

OEM Replacement: Yes

Typical Applications

• Pressure washer hose connections
• Spray gun installations
• Pump outlet connections
• Pressure washer plumbing repairs
• Hose conversion applications
• Equipment upgrades
• Commercial pressure washer systems
• Residential pressure washer repairs
• Accessory and fitting adaptations

Performance Advantages

• Allows easy conversion between 22mm and 3/8" MPT connections
• Brass construction provides excellent corrosion resistance
• Delivers secure, leak-resistant connections
• Supports high-pressure cleaning applications
• Simplifies equipment repairs and system upgrades
• Maintains consistent water flow and system efficiency
• Compatible with many common pressure washer systems
• Suitable for hot and cold water operation
• Built for reliable long-term performance

Maintenance Recommendations

• Inspect the adapter regularly for wear, corrosion, or damage.
• Check threaded and plug connections for leaks before operation.
• Replace damaged seals or O-rings as needed.
• Keep connection surfaces clean and free of debris.
• Use appropriate thread sealant on threaded fittings when required.
• Periodically inspect the fitting during routine equipment maintenance.