Another Very Rare New Old Stock Suzuki Part from the Crooks Suzi Parts Collection. NOS 11255-28C00 1989 RM250 K Genuine Suzuki Left Hand Exhaust Valve. Suzuki Part Number: 11255-28C00. New Old Stock Genuine Suzuki RM250 P 1993 Left Hand Exhaust Valve Guide. Still in its Suzuki packaging, look at the photos for condition. Very Rare Now as they are OBSOLETE. Grab Yourself a Very Rare and Now Obsolete Part! Trading as Crooks Suzi Parts.