Roof Mount H/ware

The Kleinn Model 330 is a premium roof-mounting hardware and fittings kit engineered to make installing roof-mounted air horns quick, easy, and completely weatherproof. Featuring a heavy-duty brass construction built to withstand harsh outdoor elements, this universal installation kit is specifically designed to secure Kleinn Model 401, 411, and 412 roof-mounted horns. The kit provides the exact required standoff height to cleanly route a 1/4" OD air line to the horn assembly from beneath the vehicle's roof, ensuring a professional, leak-free installation while maintaining optimal pneumatic efficiency and a secure, vibration-resistant mount.

Part Type

Air Horn Mounting Hardware

• 1/4" OD Tubing 90 Degree compression fitting
• Brass Construction
• Hardware and Fittings Kit for New Roof Mount Horn Installations (401, 411 & 412 Horns)
• Roof Mount Horn Mounting Adapter Included

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Horn Replacement Components, Roof Mount Air Horn Fittings, Elbow for Horn and Uses 1/4 in. Tubing, Includes Nut/Washers, Fits 401, 411, 412 Horns, Kit

Kleinn offers special fittings designed to install their Model 401, 411, and 412 roof mount air horns. Their all-brass fittings allow enough standoff to route airline to the horn assembly from beneath the mounting surface of your roof-mounted air horns. The retaining nut and washers secure base of the horn; while the outlet threads into the roof mount horn. Kleinn air horn fittings can also be used to install an electric solenoid to activate your roof mount horn.