Prevost Hose Stem Coupler – Automotive Interchange
Price range: $32.56 through $76.84
- Description
- Additional information
- Profile & Dimensions
Description
Prevost Hose Stem Coupler – Automotive Interchange
The Ultimate Upgrade for Safety, Efficiency, and Paint-Shop Performance.
Eliminate hose whip and air leaks forever with the Prevost Prevo S1 Hose Stem Coupler. Designed specifically for Automotive (Truflate) profiles, this coupler features an integrated hose barb that connects directly to your air line, removing the need for heavy, bulky threaded adapters.
Engineered with a lightweight composite body and Prevost’s patented “One-Push” safety technology, this coupler is the industry standard for automotive body shops, paint booths, and assembly lines where protecting the work surface is just as important as protecting the operator.
Key Features & Benefits
- Patented “One-Push” Safety System: Disconnect with zero risk. The single-button mechanism instantly vents downstream pressure before releasing the plug, completely eliminating dangerous “hose whip” that can injure technicians or damage vehicles.
- Integrated Hose Barb (Stem): Connects directly into your air hose (rubber, PVC, or PUR). This streamlined design reduces leak points, cuts down on weight, and improves ergonomics by removing heavy NPT fittings at the tool end.
- Non-Marring Composite Body: The rugged composite shell is tough enough to be run over by a car but soft enough that it won’t scratch or dent paint, clear coat, or delicate surfaces if dropped.
- Silicone-Free & Anti-Static: Essential for paint and body shops. The construction prevents static buildup (which attracts dust to fresh paint) and is guaranteed silicone-free to prevent “fish eye” defects in finish work.
- Leak-Free Guarantee: When paired with Prevost precision plugs, the mechanism creates a 100% airtight seal, reducing compressor load and energy costs.
Technical Specifications
| Feature | Specification |
| Interchange Profile | Automotive / Truflate (USI Series) |
| Connection Type | Hose Barb (Stem) – Direct Insert |
| Body Material | Heavy-Duty Composite (Non-scratch) |
| Mechanism Material | Stainless Steel & Nitrile Seals |
| Pressure Range | 29 to 174 PSI |
| Temperature Range | 5°F to 158°F (-15°C to +70°C) |
| Flow Rate (at 100 PSI) | ~34 CFM (1/4″ Body) | ~81 CFM (3/8″ Body) |
| Safety Standard | ISO 4414 (Anti-Hose Whip) |
| Button Color | Black (Standard Automotive ID) |
Ideal Applications
- Collision Repair & Paint Shops: Safe for use in spray booths due to silicone-free/anti-static properties.
- Automotive Mechanics: Lightweight design reduces wrist fatigue during long use with impact wrenches and ratchets.
- Assembly Lines: Rapid, safe tool changes without fighting air pressure.
- Custom “Whip” Hoses: Perfect for building short, flexible leader hoses to isolate vibration from air tools.
Why Choose Prevost?
Standard metal couplers leak air, scratch fenders, and can whip dangerously when disconnected under pressure. The Prevost Prevo S1 solves all three problems in a single, high-performance unit. It is an investment in safety for your team and protection for your customers’ vehicles.
Additional information
| Size | |
|---|---|
| Body Size | |
| Connection End | Hose Stem Coupler |
| Interchange Type | |
| Product Range | Prevo S1 |
| Coupler Material | Composite |
| Quantity | Box, Single |
HOSE STEM COUPLER AUTOMOTIVE 1/4″ BODY

| A (inch) | B (inch) | C (inch) | Reference |
|---|---|---|---|
| 3.386 | 1.181 | 0.764 | USI 061808 |
| 3.386 | 1.181 | 0.764 | USI 061810 |

HOSE STEM COUPLER AUTOMOTIVE 3/8″ BODY

| A (inch) | B (inch) | C (inch) | Reference |
|---|---|---|---|
| 4.051 | 1.299 | 0.89 | USI 081813 |

HOSE STEM COUPLER AUTOMOTIVE 1/2″ BODY – STAINLESS

| A (inch) | B (inch) | C (inch) | Reference |
|---|---|---|---|
| 5.374 | 1.457 | 0.394 | USI 111810 |
| 4.74 | 1.457 | 0.492 | USI 111813 |
| 6.358 | 1.457 | 0.728 | USI 111819 |






































