Model 6890: Ultra BlastMaster Upgrade Kit for Model 730 Demon Train Horns

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KL 6890

Regular price $199.95
Sale price $199.95 Regular price $199.95

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PROP 65 WARNING:
This product can expose you to chemicals which are 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.

MODEL 6890: ULTRA BLASTMASTER™ UPGRADE KIT FOR DEMON™ 730 TRAIN HORNS

ENGINEERED EXCLUSIVELY FOR DEMON™ MODEL 730 HORNS

Experience your high-output train horns in all their true acoustic glory with the premium Kleinn Model 6890 Ultra BlastMaster™ Upgrade Kit. While standard multi-bell setups face structural flow caps, this high-performance engineering package entirely resets the baseline for extreme pneumatic delivery. By completely re-engineering the internal airflow mechanics of your existing Demon™ 730 assembly, this kit forces the maximum volume of air directly into the trumpets simultaneously. The physics are simple: more air volume equals more acoustic power, resulting in devastating, soul-shaking decibel output that commands total highway respect.

MAXIMUM FLOW VOLUME AND DYNAMIC INTENSITY

The Ultra BlastMaster™ system replaces your restrictive baseline air delivery layout to open the performance floodgates, delivering a shocking twist on a classic setup. By transitioning your principal tank supply line to a massive 1/2" high-pressure feed run, this kit completely ditches standard restrictive lines. This massive jump in cubic feet per minute (CFM) allows the drivers to hit peak operational volume immediately, transforming your system into a deeper, noticeably louder, and far more aggressive train horn layout. When it comes to the ultimate vehicle configuration, "too loud" is just right.

Why Upgrade to Ultra BlastMaster™?

  • Triple-Valve Power Distribution: Supplies all necessary plumbing components to run three solenoids simultaneously. By dedicating a high-flow valve to every single trumpet, you ensure instant simultaneous actuation while eliminating manifold flow constraints entirely.
  • 30% More Output Velocity: Massive 1/2" primary air line upgrade delivers maximum pneumatic volume straight to the horn drivers, pushing the Demon™ over the edge into peak decibel performance.
  • Professional-Grade Hardware: Includes premium high-pressure adapters and two legendary Vortex™ 6 (VX6003) heavy brass solenoids, ensuring one on each horn to comfortably manage extreme system flow rates.
  • Definitive Performance Transformation: This is a non-subtle, commercial-grade acoustic overhaul. Prepare your eardrums for extreme output levels.

THE VERDICT: The absolute peak of train horn intensity. The Model 6890 re-engineers your existing Demon™ setup into a multi-valve powerhouse, delivering the massive airflow scaling and instantaneous burst speeds required to rule the streets.

⚠️ Important Fitment Notes

This specialized performance upgrade kit is engineered specifically for the Model 730 Demon™ Train Horn architecture. (For systems running the Model 230 Beast™ horns, please utilize BlastMaster™ Upgrade Model 6885).

Model 6890 is the official upgrade for the following Kleinn systems:

  • Universal ProBlaster Train Horn Kits: Models HK9 & HK9-Slimline
  • Vehicle-Specific Systems: All system model configurations ending natively in "734"

What's Included in the Box

  • Model VX6003 Brass Solenoids: Two (2) high-flow 12V heavy brass solenoid valves (Use the solenoid originally included with the Demon 730 so each horn has a dedicated solenoid).
  • Upgraded Air Tubing: 12 Feet of Model 25012-1 High-Pressure 1/2" O.D. Premium Pneumatic Airline.
  • Pneumatic Interface Hardware: Comprehensive kit-matched compression fittings, 4-way distribution manifold, and premium liquid thread sealant.

🔴 PRO TIP: Balance your upgraded pneumatic speed with clean electrical power distribution. Because you are now firing three high-performance solenoids simultaneously, protect your circuit pathways by routing your trigger lines through an isolated 40-amp fully sealed automotive relay like our Kleinn Part #340 to completely shield your cockpit activation buttons from electrical spikes.

PRODUCT SPECIFICATIONS

Feature Details
Part Number 6890
Product Collection Ultra BlastMaster™ Maximum Flow Upgrade Pack
Solenoid Inclusions Two (2) Vortex™ 6 VX6003 All-Brass 12V Valves
Primary Feed Line Size Upgraded 1/2" Outside Diameter (O.D.) High-Pressure Line Run
Target Horn Compatibility Kleinn Model 730 Demon™ Train Horn Assemblies exclusively
System Voltage Integration Standard 12-Volt DC Control Loops

Three Solenoid Relay Wiring Configuration

Operating a triple-solenoid setup requires structured electrical distribution to safeguard your dash switches and ensure uniform current deployment to all coils simultaneously:

  • Relay Terminal 30: Connect directly to a fused +12V positive battery terminal supply source (Ensure heavy gauge wire wire-run matching the total continuous amp draw).
  • Relay Terminal 87: Split this power output line into a three-way junction run, feeding one positive lead wire cleanly to each of the individual solenoid valve assemblies.
  • Relay Terminal 86: Ground this terminal pin out directly to a clean, unpainted chassis frame run or negative battery wire layer.
  • Relay Terminal 85: Route this control pin wire line run up to your interior manual momentary cockpit switch or horn ring wire link.
  • Solenoid Ground Returns: Gather the remaining secondary wire leads from all three solenoid casings and ground them collectively to a bare metal location.
Model 6890: Ultra BlastMaster Upgrade Kit for Model 730 Demon Train Horns

$199.95

Does it come with a warranty?

Kleinn Automotive Accessories Limited Warranty

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.

One-Year Limited Warranty

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.

What Is Not Covered

This warranty does not cover damage or failure resulting from:

  • Improper installation
  • Misuse, abuse, or improper operation
  • Use outside the product's intended application or specifications
  • Modification or alteration of the product
  • Accidents or physical damage
  • Electrical damage
  • Environmental damage or exposure
  • Normal wear and tear

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.

Warranty Claims

To request warranty service, email warranty@kleinn.com with the following information:

  • A copy of your original sales receipt or proof of purchase
  • Your full name
  • Email address
  • Telephone number
  • A brief description of the issue

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.

Kleinn Automotive Accessories
4045 N. Highway Drive, Tucson, AZ 85705
Tel (520) 579-1531

What's the returns policy?

How To Return An Item

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.

Return Non-Exceptions

Merchandise that has been worn, used, or altered will not be accepted for return or exchange.

Restocking Fee

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.