GLADIATOR 1/4" MPT 40° 4.0 Pressure Washer Nozzle

Wide 40° Spray for Gentle, Effective Cleaning

The 1/4" MPT 4004 (500) Pressure Washer Nozzle is a precision-engineered spray tip designed for applications where broad coverage and controlled cleaning power are essential. Featuring a 40° wide fan spray, a #4 orifice size, and a reliable 1/4-inch Male Pipe Thread (MPT) connection, this nozzle provides the versatility professionals and serious homeowners demand for delicate yet effective cleaning.

Rated for use in systems up to 5,000 PSI, the 4004 nozzle distributes water evenly across a broad spray pattern, making it ideal for washing vehicles, siding, windows, and surfaces where concentrated nozzles may cause damage. Constructed from durable materials and built to withstand daily use in high-pressure environments, the 1/4" MPT 4004 Nozzle is a trusted choice for those who need consistent performance and long service life.

Wide 40° Spray Angle – Safe for Delicate Surfaces

The 40° spray pattern is the gentlest of the standard color-coded nozzle options. By dispersing water over a wide area, it reduces surface impact while still delivering enough force for effective cleaning.

Ideal applications include:

• Vehicles & Equipment: Safe for cars, trucks, RVs, and trailers.

• House Siding & Exteriors: Vinyl, aluminum, and wood siding can be washed without damage.

• Windows & Glass: Wide spray reduces risk of cracking or etching.

• Outdoor Furniture & Decking: Cleans without splintering wood or scratching finishes.

• Painted Surfaces: Maintains finishes while removing dirt and grime.

The 40° nozzle is often the go-to choice when working with sensitive materials or painted surfaces, where precision and control are critical.

1/4" MPT Threaded Connection

Unlike quick connect nozzles, the 4004 Nozzle uses a 1/4-inch Male Pipe Thread (MPT) connection, which provides a secure, durable fit for spray bars, manifolds, and pressure washer systems.

• Secure Fit: Threads lock tightly into place for consistent performance.

• Durability: Resistant to vibration and loosening during extended use.

• Industry Standard: Compatible with most pressure washer spray bars and equipment using 1/4-inch threaded ports.

• Professional Preference: Threaded connections are often preferred in industrial setups where nozzles remain installed long-term.

This connection style ensures long-lasting reliability in high-demand environments.

Orifice Size #4

The 0004 designation indicates a #4 orifice size, which is engineered to balance pressure and flow in many medium- to high-pressure washer setups.

• Optimized Flow: Ensures proper water distribution for balanced spray coverage.

• System Compatibility: Designed to maintain performance in machines with medium flow rates.

• Steady Performance: Produces a consistent fan pattern for uniform cleaning.

Matching orifice size to your washer’s PSI and GPM ratings is essential for safe, effective cleaning — and the #4 size is one of the most common and versatile options available.

Rated Up to 5,000 PSI

The 1/4" MPT 4004 Nozzle is built to withstand operating pressures up to 5,000 PSI, making it suitable for everything from small consumer washers to heavy-duty contractor-grade machines.

• Residential Use: Gentle enough for siding, windows, and cars when used properly.

• Commercial Cleaning: Wide spray ensures fast coverage for large outdoor areas.

• Industrial Environments: Compatible with high-pressure systems requiring durability and reliability.

Its ability to handle both lower and higher pressures makes this nozzle a flexible, multi-use tool in any professional cleaning kit.

Rugged Construction for Long Service Life

Durability is at the core of the 4004 nozzle’s design. It is manufactured from high-quality materials to withstand the demands of professional cleaning applications:

• Abrasion Resistance: Handles constant high-pressure water flow without excessive wear.

• Corrosion Resistance: Suitable for outdoor environments where exposure to water and moisture is constant.

• Consistent Spray Performance: Maintains accuracy even after extended use.

• Professional Reliability: Designed to meet the needs of contractors, fleet operators, and facilities managers.

This nozzle isn’t just an accessory — it’s a long-lasting investment in consistent cleaning performance.

The 40° Nozzle in the Color-Coded System

Pressure washer nozzles follow an industry-standard color coding system, making it easy to choose the right spray pattern for the job:

• Red (0°): Pinpoint stream for maximum power and cutting action.

• Yellow (15°): Narrow fan spray for concrete, metal, and hard surfaces.

• Green (25°): Medium fan spray for versatile, general-purpose cleaning.

• White (40°): Wide fan spray for delicate surfaces.

• Black (Soap): Low-pressure nozzle for detergents and chemicals.

The white nozzle (40°) is designed specifically for sensitive applications where too much power could cause damage. It’s one of the most frequently used nozzles for residential and vehicle cleaning.

Key Features

• Model: 1/4" MPT 4004 (500) Pressure Washer Nozzle

• Color Code Equivalent: White (40° spray angle)

• Connection Size: 1/4-inch Male Pipe Thread (MPT)

• Orifice Size: #4

• Maximum Pressure: 5,000 PSI

• Spray Pattern: 40° wide fan for gentle cleaning

• Construction: Rugged, erosion-resistant materials

• Applications: Vehicles, siding, windows, outdoor furniture, painted surfaces

Why Choose the 4004 Nozzle?

While the red, yellow, and green nozzles are designed for tougher cleaning jobs, the white 40° nozzle is essential for applications requiring finesse and care.

• Gentle Cleaning: Protects surfaces that could be damaged by more aggressive nozzles.

• Efficient Coverage: Wide spray cleans large areas faster.

• Versatile Applications: Works for everything from cars to siding.

• High Compatibility: Built for 1/4" MPT threaded connections at up to 5,000 PSI.

The 4004 nozzle is the choice when you want safe, effective, and wide-coverage cleaning.

Comparison to Other Spray Patterns

Here’s how the 4004 nozzle compares with other common spray tips:

• 0° (Red): Solid pinpoint stream, maximum intensity, minimal coverage.

• 15° (Yellow): Narrow fan, high impact for hard surfaces.

• 25° (Green): Balanced fan for versatile cleaning.

• 40° (White / 4004): Wide spray, safe for delicate materials.

• Black (Soap): Low pressure for detergents and rinsing.

The 4004 nozzle offers the gentlest spray of the group, making it indispensable for delicate jobs.

Applications Across Industries

The 1/4" MPT 4004 Nozzle is trusted across many sectors:

• Automotive Detailing: Gentle enough for cars, motorcycles, RVs, and boats.

• Residential Cleaning: Washing siding, decks, patios, and outdoor furniture.

• Commercial Cleaning: Large area rinsing without risk of damaging surfaces.

• Industrial Maintenance: Cleaning equipment that cannot withstand narrow-angle sprays.

• Municipal Use: Washing signage, benches, or glass without over-stripping.

This nozzle’s wide spray pattern makes it one of the most versatile for everyday cleaning tasks.

Safety Considerations

Even though the 40° spray is the gentlest option, it’s still high-pressure water and must be used carefully:

• Avoid holding the spray too close to surfaces, especially glass.

• Wear protective gear such as gloves and safety glasses.

• Ensure the orifice size matches your washer’s PSI and GPM ratings.

• Keep bystanders and pets away from the spray area.

With proper precautions, the 4004 nozzle is safe and effective for all levels of cleaning.

Trusted by Professionals

From professional detailers washing luxury cars to contractors maintaining commercial exteriors, the 1/4" MPT 4004 (500) Pressure Washer Nozzle is trusted worldwide for its balance of gentle cleaning power and wide coverage.

With its 40° fan spray, #4 orifice size, threaded MPT connection, and 5,000 PSI durability, this nozzle is built for consistent performance in both professional and residential settings.

When delicate surfaces require careful cleaning without sacrificing efficiency, the 4004 nozzle is the professional’s tool of choice.