Is your wall oven or microwave door sagging, not closing properly, or lacking rebound? Chances are you need a new torsion spring. This WP4452395 spring is designed for the left side (when facing the oven) of certain Whirlpool and KitchenAid built-in wall ovens and microwaves. Made from high-strength, heat-resistant materials, it can handle temperatures from -40°C to 250°C without weakening or breaking. Replacing this spring can restore your door’s smooth operation, ensuring it closes flat, seals tightly, and snaps back like new. This part replaces OEM numbers like 4452395, 921042, AP6009426, PS11742585, and others. Always double-check your model number before ordering, but if you’ve got a compatible Whirlpool or KitchenAid unit, this spring is an affordable fix that’ll save you from costly service calls. Installation is straightforward if you’re handy with tools.