part 3660560 Piston guide Ø 36 Annovi Reverberi code 3660560 Details Annovi Reverberi number3660560 DescriptionPiston guide Ø 36 ItalianGuida pistone posteriore Ø 36Qty per pump3 Also comes in KIT 42854 Plunger guide kit, Ø36 mm Fits these pumps Annovi Reverberi RTX 1 RTX 100.120 N