Kleinn 07-19 Chevrolet Silverado 2500 HD/ 3500 HD Onboard Air System w/ Model 730 Horns

Kleinn 07-19 Chevrolet Silverado 2500 HD/ 3500 HD Onboard Air System w/ Model 730 Horns

Marsoni

M251S

$739.98

Get it in 3 business days with 1 day shipping. Friday, May 29

Kleinn 07-19 Chevrolet Silverado 2500 HD/ 3500 HD Onboard Air System w/ Model 730 HornsTHE GMHD 734 includes a 100% bolt on onboard train horn system features direct fit vehicle specific mounting brackets. No cutting, welding or drilling is required. Kit includes the Demon model 730 train horn, 6450RC 150 PSI waterproof high output air compressor, powder coated steel 3 gallon air tank and remote mount quick connect tire inflator with storage bag. The horns be upgraded to be even louder by adding a P N 6890 Ultra BlastMaster Valve

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I sprayed off the shutters before using. Then applied the product. It’s a thicker, white liquid. (Think lotion) it applied easily and dried quickly since it was being absorbed into the plastic shutters and aluminum windows; mine were very ‘thirsty’ from being in the direct afternoon sunlight. I like how I didn’t have to worry if one part rcvd more product than another. It blended easily. I think it looks good, but so did using other products over the years. I was told by a neighbor that this was the best product to use on them and other plastics. Time will tell if it holds up.

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Reviewed in the United States on May 1, 2026