New lower door seal is too narrow and leaks

Dishwasher Repair
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[SIZE=3]Kitchenaid dishwasher[/SIZE]
[SIZE=3]model number kuds24sebl1[/SIZE]
[SIZE=3] [/SIZE]
[SIZE=3]lower door seal kit part number AP3102987 [/SIZE]
[SIZE=3]Whirlpool replacement part 4172127[/SIZE]
[SIZE=3][/SIZE]
[SIZE=3]When I purchased this lower door seal in a local store they gave me the whirlpool replacement for this part and it is only 1/2" wide and therefore does not keep the water in the dishwasher. [/SIZE]

[SIZE=3]This seal needs to be 3/4" wide. [/SIZE]
[SIZE=3] [/SIZE]
[SIZE=3]Do you think I will find the original part, or do a need another solution?[/SIZE]
[SIZE=3] [/SIZE][SIZE=3] [/SIZE]
[SIZE=3]Thanks for your help.[/SIZE]
[SIZE=3] [/SIZE]
[SIZE=3]Keith[/SIZE]