1/4″ Electric Drain Valve Kit

Drain Tank Moisture from Within The Cab


5 reviews

Our 1/4" Electric Drain Valve Kit gives you the ability to drain all the moisture and air out of your single or dual tank system with a simple push of a button! As part of required maintenance for all onboard air systems, draining your tank is on a regular basis is needed to keep moisture out of your tank and more importantly out of your electrical components. Usually, this would involve crawling under your vehicle and manually turning your drain cock on your tank. Now, you can simply activate the included push-button from the comfort of the cab of your vehicle and your tank drains automatically. Our 1/4" Electric Drain Valve Kit is designed to fit air tanks with a 1/4" port on the bottom. 

Our 1/4" Electric Drain Valve Kit includes our 3/8" Brass Electric Air Valve, 10ft of 3/8" DOT Air Line, one 1/4" NPT to 3/8" DOT Push-To-Connect Fitting, one 3/8" NPT to 3/8" DOT Push To Connect Fitting, one 3/8" to 1/4" Reducer Bushing, 20ft of 18 gauge wire and electrical terminals. Selecting the dual tank option also provides you with the 3/8" Tee and fittings needed to plumb both tanks to one valve.

  • Easy To Install, Easy To Use
  • All Fittings & Wiring Parts Included
  • Efficiently Drains Your Air Tank
  • HornBlasters 3/8" Brass Electric Air Valve
  • 10ft 3/8" DOT Air Line
  • x1 1/4" NPT to 3/8" DOT Push To Connect Fitting
  • x1 3/8" NPT to 3/8" DOT Push To Connect Fitting
  • 3/8" to 1/4" Reducer Bushing
  • 20ft 18ga Wire
  • Electrical Terminals
  • Part Number: AM-D04K
  • Valve: 3/8" Shocker Valve
  • Port Size: 3/8"
  • Orifice Size: 4mm
  • Flow Rate: 5.5 Cv
  • Max Working Pressure: 210 PSI
  • Minimum Operating Differential: 3 PSI
  • Voltage: 12 Volts DC
  • Air Line: 3/8" DOT Line
  • Outer Diameter: 3/8"
  • Specification: SAE J844 Type B
  • Money-Back Guarantee/Refund Policy
    All merchandise unless otherwise indicated may be returned within 30 days from the shipment arrival date for a refund. A Returned Merchandise Authorization (RMA) number is required for all returns. A 15% restocking fee may apply. Additional deductions may be made to reflect the products current market value. These terms apply to all refunds. Most products are shipped with a refund/replacement guarantee period unless otherwise noted in the product listing. Customers must inform HornBlasters.com of any order discrepancy within 7 days from the invoice date so that we may investigate and resolve the situation accordingly.
  • Warranty
    This product is backed by our One-Year Manufacturer's Defect Warranty!
  • HornBlasters.com Satisfaction Guarantee
    HornBlasters.com offers our customers a 30-day satisfaction replacement or refund guarantee on all purchases, except when otherwise noted in the product listing.
  • Cross-Shipments
    HornBlasters.com will not cross-ship returned merchandise.
  • Physical Damage Policy
    Physical damage to any product purchased at HornBlasters.com will effectively void warranty coverage. Physical damage includes but is not limited to improper handling and/or any other type of damage sustained by irregular usage.

Warnings & Notices

Safety warning icon

This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

Customer Reviews

5.0 Based on 5 Reviews
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Filter Reviews:
Rodney D.
United States United States

Conductor Special and Stutter Horn montes on F350SD w/spare Tire Delete Bracket

Amazing smoothie and installation was likewise. These horns are amazing! Now I have exactly what I Needed.

John G.
United States United States

Drain valve kit

I wish I had bought this kit when I bought my horn kit , it's so easy hitting the button to release the air in the tank instead of crawling under the truck to drain it , I definitely recommend spending the extra money and buy this kit you will be glad you did !

HornBlasters 1/4″ Electric Drain Valve Kit ReviewHornBlasters 1/4″ Electric Drain Valve Kit ReviewHornBlasters 1/4″ Electric Drain Valve Kit Review
Brad L.
United States United States

Perfect to protect your horn

I always love Horn Blasters customer service and how quickly your order is shipped. This item is a perfect add on to your horn to make emptying any water/condensation from the tank.


Why not ..

During this whole ordeal and figuring out what I wanted I decided that I didn't want to crawl under the truck to let the air out of the tank and what's one more solenoid and button ??!!... It's just one of those things .. simple and works great


Must have add on to ANY kit!

I purchased this Electric Drain Valve Kit when i ordered my 2485 Nightmare Edition Horn Kit with Dual tank Spare Tire Delete and i am happy i did. This keeps me from having to get under the truck every week to drain my tanks. I have Dual tanks so i have this drain valve connected to both tanks via T connection. (Order kit WITH ELBOW and order an extra Elbow and T connection if using Dual tanks, Makes it much easier to connect) Let me tell you. Just hitting the "PURGE" button i wired up in the cab to drain the tanks turns some heads too! Sounds Awesome. I ran the drain line straight out the back and when the rock lights are on at night the "Purge spray" (Moisture) looks pretty sick. This is a MUST HAVE add on for your Tanks. Highly Recommend.

HornBlasters 1/4″ Electric Drain Valve Kit ReviewHornBlasters 1/4″ Electric Drain Valve Kit ReviewHornBlasters 1/4″ Electric Drain Valve Kit ReviewHornBlasters 1/4″ Electric Drain Valve Kit Review