Replaces the Hydro-Boost kit for your Demco Air Force One supplemental braking system (9599007, 9599019, 9599020, or 9599021). Kit includes (1) 5.8" Acorn nut, 1 rubber plug, and (1) 0.375" barbed plug.
The sales associate I spoke with was very, very helpful. I know very little about cars/trucks and, in my opinion, he went above and beyond to help me determine what I needed to buy! Thank-you so much for your help and especially for your speedy shipment! : I will definitely buy from this company again.
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