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KL VX6003-HK
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HIGH-FLOW PNEUMATIC POWERHOUSE
Maximize your pneumatic flow velocity and eliminate inline constraints with the premium Kleinn Model VX6003-HK Solenoid Upgrade Kit. At the structural core of this extreme performance kit is the heavy-duty Vortex™ 6 brass solenoid valve, precision-engineered with an enlarged high-velocity internal orifice path to move compressed air far faster than standard production valves. This complete installation package provides the instantaneous burst response and lightning-fast activation times required for competitive-grade train horns and aggressive air suspension setups.
DUAL-PURPOSE APPLICATION & SYSTEM PROTECTION
Capable of effortlessly managing system working pressures up to a staggering 300 PSI, the VX6003-HK serves a vital dual purpose for your vehicle's pneumatic infrastructure. Utilize it as an ultra-high-flow horn control valve to maximize sound volume, or configure it as a heavy-duty automatic air tank drainage system. When plumbed for automated purging, it allows you to effortlessly blow out accumulated condensation from your storage reservoir with the flip of a cockpit switch—blocking internal rust scaling and permanently shielding downstream pressure toggles from moisture damage.
THE VERDICT: The definitive high-flow solution for severe performance loops. The Model VX6003-HK seamlessly bridges the gap between maximum sound velocity and critical moisture control, ensuring your high-pressure setup stays dry and operating at absolute peak potential.
PRODUCT SPECIFICATIONS
| Feature | Details |
|---|---|
| Kit Part Number | VX6003-HK |
| Core Valve Mechanism | Vortex™ 6 Heavy-Duty Electronic Solenoid |
| Maximum Pressure Rating | 300 PSI Working Limit |
| Valve Ports Dimensions | 3/8" Female NPT (Inlet / Outlet) |
| Primary Valve Body Material | Precision-Machined Structural Solid Brass |
| Electrical Control Supply | 12-Volt DC |
| Included Air Tubing Profile | 12 Feet of 1/2" O.D. High-Pressure Airline |
To configure this upgrade package for automated air tank moisture removal, the standard manual drain petcock must be removed from the lowest port. The following matching parts are required to route the plumbing lines securely from your air tank base:
🔴 PRO TIP: If you are plumbing into the standard bottom drainage port found across the majority of our Kleinn air tank lineup, utilize Kleinn Part #51214 to effortlessly adapt the tank's 1/4" Female NPT thread layout directly to your new 1/2" O.D. line.
MANUFACTURER INSTRUCTION LINKS

$104.95
Kleinn Automotive Accessories stands behind the quality and craftsmanship of our products. Our products are covered against defects in materials and workmanship when properly installed and used under normal operating conditions, subject to the terms below.
Unless otherwise specified, Kleinn Automotive Accessories products are covered by a 1-year limited warranty from the original date of purchase.
This warranty applies to the original purchaser and covers defects in materials and workmanship under normal use.
If a product is determined to have a covered warranty defect, Kleinn Automotive Accessories will, at its discretion, repair or replace the defective product or component.
This warranty does not cover damage or failure resulting from:
Kleinn Automotive Accessories is not responsible for installation or removal charges, diagnostic fees, labor costs, vehicle downtime, loss of use, or other incidental or consequential expenses associated with warranty service.
To request warranty service, email warranty@kleinn.com with the following information:
A Kleinn representative will review your claim and may first attempt to resolve the issue through technical support.
If the product needs to be returned for inspection, Kleinn will provide a Return Authorization (RA) number and return instructions. Products should not be returned without prior authorization.
Once received, the product will be inspected to determine whether the issue is covered under warranty. If a covered defect in materials or workmanship is confirmed, Kleinn will, at its discretion, repair or replace the defective product or component.
If inspection determines that the product does not have a covered warranty defect, the product may be returned to the customer, and the customer will be responsible for applicable return shipping costs.
This limited warranty gives you specific legal rights. You may also have other rights, which vary from state to state.
Your item must be in its original unused condition to be returned, unless there is a manufacturer defect. You must return the item within 30 days of your purchase.
1. Please email support@kleinn.com to request a refund and we will assign you a Return Authorization #.
2. Mail your returned item to:
Kleinn Automotive Accessories
Returns Department
4045 N Highway Drive
Tucson, AZ 85705
3. Include in your package a signed letter stating the reason for your return and the original receipt.
Merchandise that has been worn, used, or altered will not be accepted for return or exchange.
All returns are subject to a 15% restocking fee, which will be deducted from your refund. If shipping and handling fees were applied to your order, they are non-refundable.