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Countertop Microwave

Model # MT4078SPQ4 Official Whirlpool compact microwave

Here are the diagrams and repair parts for Official Whirlpool MT4078SPQ4 compact microwave, as well as links to manuals and error code tables, if available.

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Browse Parts forMT4078SPQ4 Microwaves

  • Microwave High-voltage Diode 8205489
    #8

    Oven interior parts diagram

    Microwave high-voltage diode

    Part #8205489

    Replaced by #WP8205489

    ?
    Manufacturer substitution
    This part replaces 8205489. Substitute parts can look different from the original.
    $38.29
    14% OFF Phone Price : $44.29
    In Stock
  • Screw 4358192
    #6

    Base plate parts diagram

    Screw

    Part #4358192

    Replaced by #W11380570

    ?
    Manufacturer substitution
    This part replaces 4358192. Substitute parts can look different from the original.
    This item is not returnable
    $18.19
    10% OFF Phone Price : $20.19
    In Stock
  • Turntable Motor 8184375
    #8

    Oven cavity parts diagram

    Turntable motor

    Part #8184375

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

  • Foot Base 8184385
    #3

    Base plate parts diagram

    Foot base

    Part #8184385

    In Stock
  • Fan Blade 8184292
    #1

    Oven interior parts diagram

    Fan blade

    Part #8184292

    In Stock
  • Transformer W10329445
    #4

    Base plate parts diagram

    Transformer

    Part #W10329445

    In Stock
  • Screw 4358362
    #10

    Oven cavity parts diagram

    Screw

    Part #4358362

    Replaced by #W11245710

    ?
    Manufacturer substitution
    This part replaces 4358362. Substitute parts can look different from the original.
    This item is not returnable
    $16.43
    11% OFF Phone Price : $18.43
    In Stock
  • Switch 8183562
    #4

    Latch board parts diagram

    Switch

    Part #8183562

    Replaced by #4392027

    ?
    Manufacturer substitution
    This part replaces 8183562. Substitute parts can look different from the original.
    $74.51
    7% OFF Phone Price : $80.51
    In Stock
  • Microwave Screw 4358489
    #18

    Oven interior parts diagram

    Microwave screw

    Part #4358489

    Replaced by #4344826

    ?
    Manufacturer substitution
    This part replaces 4358489. Substitute parts can look different from the original.
    In Stock
  • Switch 8183561
    #3

    Latch board parts diagram

    Switch

    Part #8183561

    Replaced by #4392027

    ?
    Manufacturer substitution
    This part replaces 8183561. Substitute parts can look different from the original.
    $74.51
    7% OFF Phone Price : $80.51
    In Stock

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