Whirlpool
Wall oven/microwave combo parts
Whirlpool wall oven/microwave combo parts

Model # GSC278PJT4 Official Whirlpool electric built-in oven with microwave

Here are the diagrams and repair parts for Official Whirlpool GSC278PJT4 electric built-in oven with 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.
In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Part # / Part Name

Diagram #

This is the number corresponding to the part on the diagram / schematic

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ALL PARTS

Showing 10 of 237 parts |

#29

Oven/literature diagram

Wall oven temperature sensor

Part #4455636

Replaced by #WPW10131825

Manufacturer substitution

This part replaces 4455636. Substitute parts can look different from the original.

$63.02 |

9% OFF Phone Price : $69.02

In Stock

Qty

Internal oven diagram

Bake element

Part #4452153

Replaced by #WPW10207397

Manufacturer substitution

This part replaces 4452153. Substitute parts can look different from the original.

$58.16 |

9% OFF Phone Price : $64.16

In Stock

Qty

#26

Cabinet and stirrer diagram

Magnetron

Part #4375072

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

#NI

Top venting/optional diagram

Appliance touch-up paint

Part #72017

Replaced by #72017

Manufacturer substitution

This part replaces 72017. Substitute parts can look different from the original.

$8.29 |

11% OFF Phone Price : $9.29

In Stock

Qty

#42A

Cabinet and stirrer diagram

Mounting bracket

Part #4375336

Replaced by #W10727408

Manufacturer substitution

This part replaces 4375336. Substitute parts can look different from the original.

$88.84 |

6% OFF Phone Price : $94.84

In Stock

Qty

#42

Cabinet and stirrer diagram

Oven mounting bracket

Part #4375335

Replaced by #W10727408

Manufacturer substitution

This part replaces 4375335. Substitute parts can look different from the original.

$88.84 |

6% OFF Phone Price : $94.84

In Stock

Qty

#53

Cabinet and stirrer diagram

Oven baseless lamp

Part #4375348

Replaced by #WPW10440740

Manufacturer substitution

This part replaces 4375348. Substitute parts can look different from the original.

$22.69 |

21% OFF Phone Price : $28.69

In Stock

Qty

Microwave High-voltage Capacitor 4375020

#25

Cabinet and stirrer diagram

Microwave high-voltage capacitor

Part #4375020

Replaced by #WP4375020

Manufacturer substitution

This part replaces 4375020. Substitute parts can look different from the original.

$108.39 |

10% OFF Phone Price : $120.39

In Stock

Qty

#37

Oven/literature diagram

Range high-limit thermostat

Part #4451442

Replaced by #WP9759243

Manufacturer substitution

This part replaces 4451442. Substitute parts can look different from the original.

$45.89 |

12% OFF Phone Price : $51.89

In Stock

Qty

#54

Cabinet and stirrer diagram

Diode

Part #4375349

Replaced by #WPW10687786

Manufacturer substitution

This part replaces 4375349. Substitute parts can look different from the original.

$20.49 |

23% OFF Phone Price : $26.49

In Stock

Qty

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

Appliance touch-up paint, 6-oz (citrine white)
$23.19 |
21% OFF Phone Price : $29.19
Qty

Repair guides for bottom-mount refrigerators

How to replace a door gasket in a French-door refrigerator

The door gasket, often called a door seal, seals the gap around the door to keep the cold air in and the warm air out. R…

Repair difficulty

Time required

15 minutes or less

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty

Time required

15 minutes or less

How to replace a refrigerator defrost control assembly

Follow these steps to replace the defrost control assembly if your Kenmore or LG French door refrigerator displays an er…

Repair difficulty

Time required

120 minutes or less

Articles and videos for bottom-mount refrigerators

How to Replace the Water Filter in a GE Profile Refrigerator

No matter what style GE Profile refrigerator you have, we can walk you through replacing the water filter.…

How to Replace the Water Filter in a GE Refrigerator

See how to install the water filter on your GE refrigerator, no matter the filter type or refrigerator style.…

How to Replace the Water Filter in a Maytag Refrigerator

No matter what style Maytag refrigerator you have, we can walk you through replacing the water filter.…

Whirlpool
Wall oven/microwave combo parts
Whirlpool wall oven/microwave combo parts

Model # GSC278PJT4 Official Whirlpool electric built-in oven with microwave

Here are the diagrams and repair parts for Official Whirlpool GSC278PJT4 electric built-in oven with microwave, as well as links to manuals and error code tables, if available.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Part # / Part Name

Diagram #

This is the number corresponding to the part on the diagram / schematic

Filters

Brackets

Clips & Holders

Light Bulbs & Lamps

Screws

Spacers

Touch-Up Paint

Part Categories

Brackets

Clips & Holders

Light Bulbs & Lamps

Screws

Spacers

Touch-Up Paint

ALL PARTS

Showing 10 of 237 parts |

#29

Oven/literature diagram

Wall oven temperature sensor

Part #4455636

Replaced by #WPW10131825

Manufacturer substitution

This part replaces 4455636. Substitute parts can look different from the original.

$63.02 |

9% OFF Phone Price : $69.02

In Stock

Qty

Internal oven diagram

Bake element

Part #4452153

Replaced by #WPW10207397

Manufacturer substitution

This part replaces 4452153. Substitute parts can look different from the original.

$58.16 |

9% OFF Phone Price : $64.16

In Stock

Qty

#26

Cabinet and stirrer diagram

Magnetron

Part #4375072

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

#NI

Top venting/optional diagram

Appliance touch-up paint

Part #72017

Replaced by #72017

Manufacturer substitution

This part replaces 72017. Substitute parts can look different from the original.

$8.29 |

11% OFF Phone Price : $9.29

In Stock

Qty

#42A

Cabinet and stirrer diagram

Mounting bracket

Part #4375336

Replaced by #W10727408

Manufacturer substitution

This part replaces 4375336. Substitute parts can look different from the original.

$88.84 |

6% OFF Phone Price : $94.84

In Stock

Qty

#42

Cabinet and stirrer diagram

Oven mounting bracket

Part #4375335

Replaced by #W10727408

Manufacturer substitution

This part replaces 4375335. Substitute parts can look different from the original.

$88.84 |

6% OFF Phone Price : $94.84

In Stock

Qty

#53

Cabinet and stirrer diagram

Oven baseless lamp

Part #4375348

Replaced by #WPW10440740

Manufacturer substitution

This part replaces 4375348. Substitute parts can look different from the original.

$22.69 |

21% OFF Phone Price : $28.69

In Stock

Qty

#25

Cabinet and stirrer diagram

Microwave high-voltage capacitor

Part #4375020

Replaced by #WP4375020

Manufacturer substitution

This part replaces 4375020. Substitute parts can look different from the original.

$108.39 |

10% OFF Phone Price : $120.39

In Stock

Qty

#37

Oven/literature diagram

Range high-limit thermostat

Part #4451442

Replaced by #WP9759243

Manufacturer substitution

This part replaces 4451442. Substitute parts can look different from the original.

$45.89 |

12% OFF Phone Price : $51.89

In Stock

Qty

#54

Cabinet and stirrer diagram

Diode

Part #4375349

Replaced by #WPW10687786

Manufacturer substitution

This part replaces 4375349. Substitute parts can look different from the original.

$20.49 |

23% OFF Phone Price : $26.49

In Stock

Qty

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

Appliance touch-up paint, 6-oz (citrine white)
$23.19 |
21% OFF Phone Price : $29.19
Qty

Repair guides for bottom-mount refrigerators

How to replace a door gasket in a French-door refrigerator

The door gasket, often called a door seal, seals the gap around the door to keep the cold air in and the warm air out. R…

Repair difficulty

Time required

15 minutes or less

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty

Time required

15 minutes or less

How to replace a refrigerator defrost control assembly

Follow these steps to replace the defrost control assembly if your Kenmore or LG French door refrigerator displays an er…

Repair difficulty

Time required

120 minutes or less

Model # GSC278PJT4 Official Whirlpool electric built-in oven with microwave

Model diagram and schematic

SEARCH WITHIN THIS MODEL

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

Repair guides for bottom-mount refrigerators

How to replace a door gasket in a French-door refrigerator

How to replace a refrigerator water valve

How to replace a refrigerator defrost control assembly

Articles and videos for bottom-mount refrigerators

How to Replace the Water Filter in a GE Profile Refrigerator

How to Replace the Water Filter in a GE Refrigerator

How to Replace the Water Filter in a Maytag Refrigerator

Model # GSC278PJT4 Official Whirlpool electric built-in oven with microwave

Model diagram and schematic

SEARCH WITHIN THIS MODEL

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

Repair guides for bottom-mount refrigerators

How to replace a door gasket in a French-door refrigerator

How to replace a refrigerator water valve

How to replace a refrigerator defrost control assembly

Articles and videos for bottom-mount refrigerators

How to Replace the Water Filter in a GE Profile Refrigerator

How to Replace the Water Filter in a GE Refrigerator

How to Replace the Water Filter in a Maytag Refrigerator

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