Air Fitting Kits

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KL FIT12

Kit Type
Regular price $64.95
Sale price $64.95 Regular price $64.95

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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.

KLEINN PROFESSIONAL AIR FITTING INSTALLATION KITS

COMPLETE MASTER INSTALLATION PLUMBING HARNESSES

Building your own custom train horn configuration or piecing together a heavy-duty pneumatic network à la carte? Skip the guesswork and plumbing run-around with genuine Kleinn Air Fitting Installation Kits. These master hardware assortments are comprehensively bundled to include every necessary structural connection point, manifold junction, and plumbing hardware piece required to wire and plumb your specific onboard air loop from scratch. Engineered to withstand extreme operating pressures, these application-matched packages bring clean, leak-free execution to any custom system build.

PRO-TIER ALL-IN-ONE ASSORTMENTS

Every professional-grade fitting kit is heavily curated with essential electrical and pneumatic baseline items. Each package comes fully loaded with application-specific brass NPT compression adapters, an industrial system automated pressure switch, a dashboard-mount horn activation push button, and a precision applicator vial of genuine Kleinn JUICE Premium Thread Sealant to establish permanent high-pressure structural integrity.

Why Choose a Kleinn Air Fitting Kit?

  • True À La Carte Solution: Removes the frustration of custom builds by gathering all necessary manifold, tank, and horn plumbing connectors in one single box.
  • Application-Specific Tuning: Precision matched to seamlessly complement Kleinn's flagship multi-bell air horn architectures from HK1 through HK9-Slimline.
  • Automated Control Infrastructure: Includes a matching heavy-duty pressure safety switch to safely govern your compressor's on/off cycle limits.
  • Kleinn JUICE Sealant Included: Packs our high-utility liquid anaerobic thread compound to lock out phantom system pressure drop-offs and slow structural air leaks.

THE VERDICT: The most secure foundation for any custom onboard air system. By marrying industrial-grade brass fittings with vital control modules, these comprehensive kits ensure your custom plumbing layout handles continuous heavy high-pressure loads seamlessly.

VARIATION SELECTION GUIDE

Review the listing package options below to select the precise fitting array required for your direct horn kit architecture:

Fitting Kit Model Direct Horn System Compatibility Matrix
FIT12 Designed for Kleinn Horn Kits: HK1, HK2, and HK2-1
FIT34 Designed for Kleinn Horn Kits: HK3, HK3-1, HK4, and HK4-1
FIT56 Designed for Kleinn Horn Kits: HK5 and HK6
FIT7 Designed for Kleinn Horn Kit: HK7
FIT89 Designed for Kleinn Horn Kits: HK8 and HK9
FIT9-SLIMLINE Designed for Kleinn Horn Kit: HK9-Slimline

Air Line Fitting Kit Component Breakdown

Each variant kit is configured to contain all the exact structural air line fittings, electrical activation mechanisms, and tank safety hardware required to fully plumb your matching Problaster Horn Kit architecture:

  • Automated System Air Pressure Switch (Matched to kit specifications)
  • High-Pressure Over-Pressure Safety Blow-Off Valve
  • Brass Tank Bottom Condensation Drain Cock
  • High-Flow Air Line NPT Compression Fittings
  • Structural Manifold Counter-Sunk Hex Plugs
  • Heavy-Duty Momentary Push Button Cockpit Horn Switch
  • Applicator Vial of Kleinn JUICE Premium Anaerobic Thread Sealant

What's Included in the Kit

  • Pneumatic Connectors: Complete bundle of variant-matched high-pressure brass NPT compression air fittings (including hex plugs, compression connectors, and safety valves).
  • System Governance: One (1) heavy-duty automotive automated pneumatic air pressure switch (Model-matched to factory kit limits).
  • Cockpit Trigger: One (1) premium standalone momentary cockpit-mount horn activation push button switch.
  • Thread Compound: One (1) precision liquid vial of Kleinn JUICE premium thread sealant compound.

🔴 PRO TIP: Complete your electrical infrastructure seamlessly. Do not forget to pair your new fitting installation array with a dedicated compressor wiring kit. Part #6852 (Standard Wiring Kit) integrates perfectly with any of these fitting variants. If your specific vehicle layout requires an extended structural compressor power line run along the frame rails, upgrade directly to our Part #6858 (Extended Wiring Kit).

Air Fitting Kits

$64.95

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.