2013 Mercury Outboard Models Where can I find my serial number? 250 [CXL 4] 1253V24KD 250 [CXXL 4] 1253V34KD 250 [XL 4] 1253V23KD 250 [XXL 4] 1253V33KD 300 [CL 4] 1303V14KD 1304V14KD 300 [CXL 4] 1303V24KD 1304V24KD 300 [CXXL 4] 1303V34KD 1304V34KD 300 [L 4] 1303V13KD 1304V13KD 300 [XL 4] 1303V23KD 1304V23KD 300 [XXL 4] 1303V33KD 1304V33KD