All of our new parts are aftermarket replacements. Compatible with John Deere Lawn & Garden(s) 318, 420. Replaces John Deere OEM nos AM39311.Made in the USA and manufactured to exact OEM specifications. Switch Port: 3/8 Beaded Tube. All States Ag Parts Item No. This item is in the category "Business & Industrial\Heavy Equipment, Parts & Attachments\Heavy Equipment Parts & Accessories\Engine Cooling Systems". The seller is "tractorpartsasap" and is located in this country: US. This item can be shipped to United States.