Whirlpool
Countertop Microwave

Model #MW8400XS0 Official Whirlpool microwave

Here are the diagrams and repair parts for Whirlpool MW8400XS0 microwave, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

    Showing 10 of 123 parts

    Appliance Screw#19

    Cabinet and hinge Diagram

    Screw

    Part #313638
    Replaced by #WP488729
    ?
    Manufacturer substitution
    This part replaces 313638. Substitute parts can look different from the original.
    BEST SELLER
    This item is not returnable
    In Stock
    $4.39 | 
    19% OFF 
    Phone Price: $5.39
    Dryer Drum Light Bulb#11

    Cabinet and hinge Diagram

    Light bulb

    Part #313969
    Replaced by #WP3395618
    ?
    Manufacturer substitution
    This part replaces 313969. Substitute parts can look different from the original.
    BEST SELLER
    In Stock
    $29.89 | 
    14% OFF 
    Phone Price: $34.89
    Cooking Appliance 14-gauge Splicing Wire, 200-degree C (Red)

    #NI

    All parts Diagram

    In Stock
    $318.95
    Appliance Touch-Up Paint, 6-oz (Citrine White)

    #NI

    All parts Diagram

    In Stock
    $23.19 | 
    18% OFF 
    Phone Price: $28.19
    Drive Button#37

    Door and latch Diagram

    Drive button

    Part #313611
    In Stock
    $29.01
    Nut#13

    Cabinet and stirrer Diagram

    Nut

    Part #311721

    The manufacturer no longer makes this part, and there's no substitute part

    Microwave Cooking Rack Support#22

    Cabinet and hinge Diagram

    Support

    Part #313653
    Replaced by #WP3149478
    ?
    Manufacturer substitution
    This part replaces 313653. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $4.99 | 
    17% OFF 
    Phone Price: $5.99
    Screw#25

    Magnetron and air flow Diagram

    Screw

    Part #311865

    The manufacturer no longer makes this part, and there's no substitute part

    Appliance Cable Tie

    See All Related Diagrams

    Cable tie

    Part #309330
    Replaced by #WPW10339879
    ?
    Manufacturer substitution
    This part replaces 309330. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $3.09 | 
    28% OFF 
    MSRP: $4.30
    Dishwasher Screw#28

    Door and latch Diagram

    Screw

    Part #313811
    Replaced by #303776
    ?
    Manufacturer substitution
    This part replaces 313811. Substitute parts can look different from the original.
    In Stock
    $8.59 | 
    10% OFF 
    Phone Price: $9.59

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