Kleinn Air Horns · New
Kleinn HK9 Complete Set of Fittings
MPN FIT9SLIM · Store SKU kleFIT9SLIM
Supplier stock checked 11/8/2026, 3:41:06 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
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Product details
The Kleinn FIT9-SLIM installation kit contains all the essential air line fittings utilized in an HK9-SLIMLINE Problaster Horn Kit, providing a comprehensive hardware solution for a clean setup. This premium kit includes high-quality 1/4" NPT fittings such as a P/N 2151 145 PSI pressure switch, a P/N 52175 175 PSI safety valve, a P/N 52835 drain cock, a P/N 51238 compression fitting, and a P/N 50040 hex plug. For a complete installation, the package also comes equipped with a P/N 318-BK momentary push button horn switch and a vial of high-performance Juice-1 Thread Sealant to ensure entirely leak-free connections throughout your air system, making it the ultimate all-in-one upgrade to ensure your horn system operates at peak performance and reliability. Complete set of fittings for a Kleinn HK9Slimline Problaster Horn Kit.
Manufacturer fitment & guides
Check FIT9SLIM against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
