Jet 422451 3/8″ Body x 1/4″ NPT Female Type P Automotive Coupler

The Jet Equipment & Tool 422451 Type P automotive coupler is a steel pneumatic fitting designed for fast, secure air tool connections in automotive, industrial, and shop environments. This female coupler features a 3/8″ body with a 1/4″ NPT female thread, making it compatible with standard Type P automotive-style plugs commonly used on air hoses, compressors, and pneumatic tools. Built to ANSI T3.20.14 dimensions, it provides consistent fit and reliable engagement across common compressed air systems.

This coupler is equipped with a deep knurled socket sleeve for a secure grip, even when hands are oily or gloved, and a 6-ball positive locking mechanism that helps maintain a tight, dependable connection under pressure. Manufactured from zinc-plated steel, it resists rust and corrosion caused by moisture and daily shop exposure. With a maximum working pressure of 200 PSI and 50 SCFM airflow at 100 PSIG inlet with a 10 PSIG pressure drop, this coupler supports steady air delivery for impact wrenches, ratchets, nailers, and other pneumatic tools. The wide operating temperature range of -40°F to 225°F allows dependable performance in both cold and warm working conditions. Bulk packaging makes it well suited for maintenance departments and high-use shop environments.

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Jet 3/8″ Body x 1/4″ NPT Female Type P Automotive Coupler At a Glance

• Type P Automotive Coupler: Compatible with common automotive-style air plugs
• 3/8″ Body Size: Supports consistent airflow for pneumatic tools
• 1/4″ NPT Female Thread: Fits standard male-thread air hoses and fittings
• 6-Ball Positive Locking Mechanism: Helps ensure secure, reliable connections
• Deep Knurled Sleeve: Improves grip during coupling and uncoupling
• Zinc-Plated Steel Construction: Helps resist rust and corrosion
• 200 PSI Max Working Pressure: Suitable for most shop air systems
• Wide Temperature Range: Operates from -40°F to 225°F

Markets

• Automotive Repair Shops: Used on air hoses and compressors for daily service work
• Industrial Maintenance Teams: Reliable for plant air systems and equipment upkeep
• Manufacturing Facilities: Supports pneumatic tools on assembly and production lines
• Construction and Trade Contractors: Ideal for jobsite air compressor setups
• Municipal Fleet and Facility Maintenance: Suitable for garages and service departments
• Trade Schools and Training Centers: Helps demonstrate proper air coupling and safety

Quick and secure air connections are critical for maintaining productivity in busy shop environments. The Jet Equipment & Tool 422451 Type P automotive coupler is designed to deliver dependable performance when connecting and disconnecting pneumatic tools throughout the workday. Its 6-ball positive locking mechanism helps maintain a secure seal under pressure, while the deep knurled sleeve allows easy handling during frequent tool changes.

Maintenance crews and technicians benefit from the zinc-plated steel construction, which holds up to moisture, oil, and repeated coupling cycles. Because this coupler meets ANSI T3.20.14 dimensions, it integrates easily into existing automotive-style air systems without compatibility concerns. Whether used in a repair bay, factory floor, or training environment, this coupler provides reliable airflow, secure connections, and long service life.

Jet 422451 3/8″ Body x 1/4″ NPT Female Type P Automotive Coupler Features

• Automotive Type P Design: Matches widely used shop air plugs
• 6-Ball Locking System: Maintains secure connections during operation
• Deep Knurled Sleeve: Improves grip and control
• Zinc-Plated Steel Body: Built for durability and corrosion resistance
• High Airflow Capacity: Supports demanding pneumatic tools
• ANSI-Compliant Dimensions: Ensures consistent fit and compatibility

Jet 422451 3/8″ Body x 1/4″ NPT Female Type P Automotive Coupler Includes

• (1) 3/8″ Body x 1/4″ NPT Female Type P Automotive Coupler

Jet 422451 3/8″ Body x 1/4″ NPT Female Type P Automotive Coupler Specifications

• Part Number: 422451
• Model Number: PCF3814B
• UPC: 059629885468
• Description: Coupler
• Coupler Type: Female
• Body Size: 3/8″
• Thread Size: 1/4″ NPT
• Material: Zinc-Plated Steel
• Maximum Working Pressure: 200 PSI
• Air Flow: 50 SCFM @ 100 PSIG inlet, 10 PSIG pressure drop
• Operating Temperature Range: -40°F to 225°F (-20°C to 107°C)
• Standards Compliance: ANSI T3.20.14
• Packaging: Bulk

Why Automotive Professionals Select the Jet 3/8″ Body x 1/4″ NPT Female Type P Automotive Coupler

Technicians and maintenance crews choose the Jet Equipment & Tool 422451 for its secure locking design and consistent airflow in everyday pneumatic air tool applications. The 6-ball positive locking mechanism helps prevent accidental disconnects, while the 3/8″ body supports steady air delivery for impact tools, ratchets, and other shop equipment. Its 1/4″ NPT female thread fits standard air hose connections found in automotive and industrial environments.

The zinc-plated steel construction provides durability in shops where moisture, oil, and frequent coupling are common. By meeting ANSI T3.20.14 dimensions, this automotive-style coupler integrates smoothly into existing air compressor systems. From service bays to production floors, this coupler is selected for its reliability, compatibility, and ease of use in real-world shop conditions.