Product review (4 stars): Whirlpool 8535075 Silverware Basket for Dish Washer
Bought this to replace a prematurely worn-out silverware basket.  I've had my WP dishwasher about five years, and I guess the constant heated drying had deformed the lock mechanism on the old basket, because every time I opened the washer door, silverware would fall out everywhere.  New one works great.