A novel maize variety designated 5CWDI1508 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety 5CWDI1508 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 5CWDI1508 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby are provided. Hybrid maize seed, plants or plant parts are produced by crossing the variety 5CWDI1508 or a locus conversion of 5CWDI1508 with another maize variety.
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