17-373 Tru-Flate Straight Lock On Air Tire Chuck Coupler Style Grip-Tite Brass

Tru-Flate 17-373 Brass Lock-On Coupler Style Straight Tire Air Chuck

The Tru-Flate 17-373 is a compact, heavy-duty brass lock-on tire chuck designed for professional and everyday air service applications. Featuring a pull-back coupler–style lock-on mechanism, it attaches to valve stems the same way a standard air quick coupler connects to a fitting—giving you a secure, hands-free hold during inflation.

This model includes a 1/4" NPT female thread, allowing easy installation onto whip hoses or commercial gauge-and-hose tire inflators. (Note: 1/4" NPT measures approximately 1/2" in actual diameter for reference.) With an overall length of only 1.4", the 17-373 is ideal for tight spaces where larger chucks won’t fit.

Built from solid brass, it offers long-lasting durability, corrosion resistance, and smooth, consistent airflow for accurate inflation.

Key Features:

• 1/4" NPT female threads (1/4" NPT is approx. 1/2" in diameter) for easy installation

• Compact 1.4" overall length—perfect for tight or obstructed areas

• Pull-back lock-on mechanism works like an air quick coupler but connects to a tire valve stem

• Straight-style design for general service and commercial use

• Durable solid brass construction for long service life

• Ideal as a replacement or upgrade end for shop hoses, service truck kits, or gauge-and-hose inflators

A great choice for shops, fleet maintenance, automotive service, and anyone needing a dependable lock-on chuck with a small footprint.