NEW Top Quality 400w Heavy Cast Brass Block Heater. Equipment / Tractor Block Heater for engines equipped with 1" NPT threaded port in engine block Made in the USA by Phillips & Tempo Industries, an OEM Manufacturer for most major tractor makers The more powerful heating element and solid brass base casting is just some of what sets this heater apart from the cheap imitators. This heater takes the place of a 1" thread pipe plug if your engine has such a plug or hole into the water-jacket, this unit will fit; if no such threaded port exists on your engine it will not work for your application. Made for us right here in the good 'ol USA, NOT China! Not a flimsy stamped metal part ... solid brass Includes a new heavy gauge 6" power cord for 120V AC Replace an old heater... or install in an engine that never had one. A must for smooth safe engine starting below 30 degrees F. Standard mounting position for John Deere, Massey, Kubota and Bobcat Tractor engines is in the threaded hole in the bottom/side of the engine block. Also replaces old block heaters with LR1843 marking. Block and pad heaters have the longest life and consume considerably less electricity when used in conjunction with a controller such as the Power Badger We are Bostic Motors Inc. We specialize in Diesel engines and parts.