PUSHROD TUBE SEAL KIT for One Cylinder fits Continental Engines    IO-346;    O,IO,TSIO-470;                                                    IO,TSIO-520;                                                       IO,TSIOL 550 Series   Real Gasket Tennessee has received FAA-PMA approval for improved design on the pushrod tube seals for Continental engines. These seals are designed to give 37% more sealing area at the point of contact with the pushrod tube.  The beveled top of the seal and companion crown washer will allow more spring pressure to the tube therefore ensuring a tighter seal.   PUSHROD TUBE SEAL KIT Part #: RG-520PRT-1 Complete Kit for 1 Cylinder. RG-520PRT-1 Kit contains the following parts to complete one cylinder:  Four (4) each of: RG-534610     Black Seal RG-534609     Washer   FAA-PMA approved for the following CONTINENTAL ENGINES: IO-346;    O-470-A,-B,-G,GCI,-J,-K,-L,-M,-R,-S,-U;  IO-470-C,-D,-E,-F,-G,-H,-J,-K,-L,-M,-N,-R,-S,-U,-V,-VO; TSIO-470-B,-C,-D;   IO-520-A,-B,-C,-D,-E,-F,-J,-K,-L,-M,-BA,-BB,-CB,-MB;   TSIO-520-B,-C,-D,-E,-G,-H,-J,-K,-L,-M,-N,-P,-R,-T, -AE,-AF,-BB,CE,-DB,-EB,-JB,-KB,-LB,-NB,-UB,-VB,WB;   IO-550-A,-B,-C,-D,-E,-F,-G,-L;  TSIOL-550 Series        RG-520PRT-1 Kit contains the following parts to complete one cylinder:  Four (4) each of: RG-534610     Black Seal RG-534609     Washer NOTE:    Parts RG-534609 (Washer) and  RG-534610 (Black seal)  MUST BE USED TOGETHER. THIS KIT HAS ENOUGH SEALS & WASHERS AT BOTH ENDS OF TUBES FOR  (1) CYLINDER.   This kit is also available in a 6 cylinder package – RG-520PRT-6.   Push rod tube seal kits are available for two other Continental engine types: RG-360PRT  :  Kit  for Continental engines  IO,TSIO,LTSIO-360, RG-550GPR :  Kit  for Continental engines  GTSIO,LTSIO,TSIO-520;                                  and IO,IOF,TSIO,TSIOF-550 engines. The kits are available in single cylinder kits and 6 cylinder kits.   Proudly made in the USA.