| These units are also known as the AAR, or auxilary air regulator. These units are rebuilt for us by the same company that rebuilds all the rest of the injection components that we sell. They've been rebuilding injection parts longer than the z man has been working on z's. Each part is disassembled, thoroughly cleaned, painted, and a new electrical element is then installed. Then they are bench tested and given a serial number. We guarantee them for a period of 12 months after the intial purchase, regardless of miles. Core charge: $15.00 not included in listed price, but it is added on automatically when you place your order. We give you 60 days from the time of receipt to return the old core to us for a refund. The core must be received within that 60 day window unless other arrangements are made prior to ordering, and the core must be rebuildable by normal standards. Be sure to check out our other new and rebuilt fuel injection parts. These air regulators are temporarily placed on back order. If you need one, go ahead and order it now. We won't charge your credit card until the item is ready to ship to you. We will be filling our back orders first once they become available again. Last update 05/11 | 
