Details West 253 HO Scale Air Horn – K3 Reverse #4 – ATSF, SP, UP, BNSF – New

Add some authentic detail to your HO scale locomotives with this Details West air horn.

It's the K3 Reverse #4 style, commonly seen on ATSF, SP, UP, and BNSF engines.

Part number 253.

Brand new, made for HO scale.

Great for model railroaders who care about accurate details.

Not a toy—this is a fine detail part for serious hobbyists.

Gender: all, UPC doesn't apply.

Paint it, weather it, mount it—make your engine look legit.

Small part, big impact.