Fittings

Bring professional-grade convenience to your vehicle with the Kleinn INF-1 tire inflation kit, the ultimate on-the-go inflation solution engineered specifically for 150 PSI onboard air systems. This premium, universal-fit utility package features a...

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...

Equip your vehicle's onboard air installation with the premium Kleinn FIT89 complete plumbing and fitting kit, engineered as a direct-fit component package for the HK8 and HK9 ProBlaster train horn systems or for universal high-pressure custom...

Equip your vehicle's onboard air installation with the premium Kleinn FIT7 complete plumbing and fitting kit, engineered as a direct-fit component package for the HK7 ProBlaster train horn system or for universal high-pressure custom configurations...

Equip your vehicle's air horn installation with the Kleinn FIT56 complete plumbing and fitting kit, specifically engineered to contain all the essential airline fittings utilized in HK5 and HK6 ProBlaster horn systems. Engineered for universal...

Equip your vehicle's air horn installation with the Kleinn FIT34 complete plumbing and fitting kit, specifically engineered to contain all the essential airline fittings utilized in HK2, HK2-1, HK3, and HK3-1 ProBlaster horn systems. Engineered for...

Equip your vehicle's air horn installation with the Kleinn FIT12 complete plumbing and fitting kit, specifically engineered to contain all the essential airline fittings utilized in HK1 and HK2 ProBlaster horn systems. Engineered for universal...

The Kleinn Model 53814R is a heavy-duty pneumatic hex reducer engineered to provide a secure, leak-free transition between different thread sizes within your high-pressure onboard air system. Featuring a premium, corrosion-resistant brass construction...

The Kleinn Model 51418F is a premium straight compression fitting engineered to establish a secure, leak-free connection within your high-pressure onboard air system. Featuring a heavy-duty, corrosion-resistant brass construction built to withstand...

The Kleinn Model 51418 is a premium straight compression fitting engineered to establish a secure, leak-free connection within your high-pressure onboard air system. Featuring a heavy-duty, corrosion-resistant brass construction built to withstand...

The Kleinn Model 51414PL is a premium 90-degree elbow push-to-connect (PTC) fitting engineered to optimize airline routing and ensure a secure, leak-free connection within your high-pressure onboard air system. Featuring a durable nylon and metal...

The Kleinn Model 51414P is a premium straight push-to-connect (PTC) fitting engineered to establish a secure, leak-free connection within your high-pressure onboard air system. Featuring a durable nylon and metal composite construction built to withstand...