Gladiator 1/4" MPT Stainless Steel 15° Nozzle 3.5 – OEM Replacement Part

Part Number: 6441
Category: Pressure Washer Nozzles → Spray Tips & Nozzles → Stainless Steel Spray Nozzles
Type: Gladiator 15° Stainless Steel Spray Nozzle

The Gladiator 1/4" MPT Stainless Steel 15° Nozzle 3.5 (Part #6441) is a professional-grade pressure washer spray nozzle engineered to deliver powerful cleaning performance with a concentrated 15-degree spray pattern. Featuring a precision-machined #3.5 orifice, this nozzle provides an excellent balance of cleaning force and surface coverage, making it ideal for removing stubborn dirt, grease, mud, oil, and grime from hard surfaces.

Key Features & Benefits

• Genuine Gladiator OEM replacement nozzle
• Aggressive 15° spray pattern for heavy-duty cleaning
• Precision #3.5 nozzle orifice size
• Durable stainless steel construction
• Standard 1/4" MPT threaded connection
• Corrosion-resistant and wear-resistant design
• Rated for up to 5000 PSI
• Excellent balance of cleaning force and coverage
• Ideal for commercial and industrial pressure washing
• Long-lasting performance in demanding applications

Technical Specifications

Part Number: 6441

Manufacturer: Gladiator

Product Type: Pressure Washer Spray Nozzle

Spray Pattern: 15°

Nozzle Size: 3.5

Connection Type: 1/4" MPT

Thread Type: Male Pipe Thread

Material: Stainless Steel

Maximum Pressure: 5000 PSI

Application: Heavy-Duty Cleaning

OEM Replacement: Yes

Typical Applications

• Concrete cleaning
• Sidewalk and driveway washing
• Heavy equipment cleaning
• Grease and oil removal
• Industrial maintenance cleaning
• Agricultural equipment washing
• Construction equipment maintenance
• Fleet vehicle cleaning
• Surface preparation work
• Commercial pressure washing operations

Performance Advantages

• 15° spray pattern provides concentrated cleaning power
• Delivers strong impact while maintaining useful surface coverage
• Precision-machined orifice ensures consistent spray performance
• Stainless steel construction resists corrosion and wear
• Effective for removing stubborn contaminants and buildup
• Suitable for demanding commercial and industrial applications
• Easy installation with standard 1/4" MPT connection
• Compatible with many professional pressure washer systems
• Durable design helps maximize service life

Important Safety Notice

A 15-degree spray nozzle produces a concentrated high-pressure spray pattern that can cause injury or property damage if used improperly. Never direct the spray toward people, animals, glass, painted surfaces, electrical equipment, or delicate materials. Always wear appropriate personal protective equipment when operating pressure washing equipment.

Maintenance Recommendations

• Inspect the nozzle regularly for wear or orifice enlargement.
• Flush clean water through the nozzle after each use.
• Remove debris or mineral deposits as necessary.
• Replace the nozzle if spray pattern quality declines.
• Store in a clean, dry location when not in use.
• Inspect threads periodically for wear or damage to maintain a secure connection.