Rubber Oleo Piston Cup ReplacementAdd to Wishlist
Replacement 1-1/8" Rubber Piston Cup (AAI PN SS12301) for Alpha Aviation STC SA01247CH (MLG Oleo Restoration Kit) - Serial #813 & up.
Also an applicable replacement piston cup for Ercoupe Models Serial #112 to 812.
PLEASE NOTE: Use only automotive type DOT-3 brake fluid when servicing struts using cup seal SS1230. Do NOT use MIL 56061 (Red) Hydraulic Fluid - it will destroy the rubber cup.