WP4387503 Refrigerator Defrost Thermostat – Whirlpool, Kenmore, Maytag, KitchenAid
WP4387503 Refrigerator Defrost Thermostat – Whirlpool, Kenmore, Maytag, KitchenAid
WP4387503 Refrigerator Defrost Thermostat – Whirlpool, Kenmore, Maytag, KitchenAid

Whirlpool Refrigerator/freezer bimetal defrost thermostat WP4387503

Sale price
$35.99
Regular price
$51.22
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FREEZER NOT DEFROSTING

Whirlpool Refrigerator/freezer bimetal defrost thermostat WP4387503, Fixes Freezer not defrosting

Genuine Whirlpool clip-on bimetal defrost thermostat that senses evaporator temperature during defrost and cycles the defrost heater off after frost or ice melts.

Part WP4387503Whirlpool

Genuine Whirlpool clip-on bimetal defrost thermostat that senses evaporator temperature during defrost and cycles the defrost heater off after frost or ice melts.

Is This the Right Part?

Part NumberWP4387503
ManufacturerWhirlpool
Appliance TypeRefrigerator/freezer
Part TypeRefrigerator/freezer bimetal defrost thermostat

Common Symptoms

  • Frost buildup
  • Freezer not defrosting
  • Freezer section too warm
  • Refrigerator too warm
  • Refrigerator runs too long

Check Before Replacing

  • Verify the refrigerator or freezer model number against the part’s compatibility listing before ordering.
  • With power disconnected, inspect whether the thermostat is securely clipped to the evaporator and whether its wiring or terminals show visible damage.
  • A qualified technician may test thermostat continuity at the appropriate temperature; do not assume a failed thermostat without checking the complete defrost system.

Pro Tip

Verify the complete appliance model number before ordering because this thermostat fits only select refrigerators and freezers.

Part Details

Part NumberWP4387503
Part TypeRefrigerator/freezer bimetal defrost thermostat
ManufacturerWhirlpool
Appliance TypeRefrigerator/freezer
Primary FunctionTerminates or interrupts the defrost heater operation when the evaporator reaches the thermostat’s temperature range.

Key Features

  • Clip-on design
  • Bimetal construction
  • Monitors evaporator temperature during the defrost cycle
  • Genuine Whirlpool OEM part

Installation Notes

  • Disconnect electrical power before installation.
  • Safely protect or remove perishable food while power is disconnected.
  • Follow the appliance-specific service instructions; model-specific access and wiring can vary.

Verified Compatible Models

3XKVN510000, 3XKVN510001, 7ST21HPXLQ00, 7ST21HPXLQ02, 8ET1WTKXKT04, 8GT2FTKXSS00, 8GT9FTKXST00, 8VET0WPKKQ04, 10642102300, 10642102301, 10642104300, 10642106300, 10642106301, 10660162990, 10660167990, 10660172990, 10660172991, 10660177990, 10660182000, 10660182001, 10660184001, 10660187000, 10660192000, E18PKXYG00, E18PKXYN00, E18PKXYW00, ED25DMXDB00, ED25DMXDN00, ED25DMXDW00, ER2MHKXPL00, ET1FHMXMQ01, ET1FHMXMT00, ET1FHTXMT00, ET1FHTXMT02, ET1FTEXMQ00, ET1LFKXKB03, ET1MHEXRB00, ET1MHKXMT00, ET1MTKXKQ00, ET1MTMXKQ02, ET1RHMXKT02, ET1WTKXKQ02, ET1WTKXKQ08, ET2AHTXMQ01, ET2AHTXMQ02, ET8CHMXKT04, ET8GHMXLQ05, ET8LFKXKQ04, ET8MTKXKQ00, ET8WTMXKT07, ET18GKXHW00, ET18NKXDW06, ET18NKXFW01, ET18NKXFW04, ET18NMFW03, ET18PKXFW01, ET18TKXBW01, ET21MMXJT01, ET21PKXFW01, ET22DQLB00, ET22RKXGT02, ET22RKXGW02, GR2SHKXKQ02, GR2SHKXMS01, GR2SHTXKL03, GR2SHTXKT02, GR2SHTXMQ01, GR2SHTXMT00, GR9SHKXKQ01, GR9SHKXMQ00, GT1SHTXLQ01, GT2SHMXLS01, GT9SHTXLB01, GT9SHTXLQ00, GT9SHTXLQ01, GT19DKXHW00, GT22DKMXGN00, GT22DKMXGW00, GT22DKXJW01, GT22DMXJB00, KTRC19KMWH00, RT18DKXAW00, RT18DKXFW01, RT18DKXHW00, RT21LMXKQ00, RT21LMXKQ02, ST18HPXKQ00, ST18HPXKQ01, ST18HPXKQ02, ST18HPXKQ03, ST18PKXHW00, ST21HPXLQ01, ST21HPXLQ02, ST21PKXHW00, ST21PKXJW00, ST21PKXJW01, ST21PKXKQ00, ST21PKXKQ01, 7ST21HPXLQ01, ST21HPXLQ00, ST21HPXPQ00, ER9SHKXKQ01, ET1MTMXKT02, ET1MTKXKT08, 10660192001, 10660194001, 10660197000, 10660262990, 10660262991, 10660264991, 10660267990, 10660272990, 10660272991, 10660274991, 10660277990, 10660282990, 10660282991, 10660284991, 10660287990, TT22AKXEN00, GR9SHKXKT00, ET1FTKXKQ07, ET1MTEXMQ00, GR9SHKXKQ00, ET1LFKXKB02, 8VET0WPKKQ02, ET1CHMXKT02, ET1FTKXKT03, 8GR9SHKXKT02, 2ET18GMXJW00, GT19DKXJT00, GR2SHKXKT01, ET1FHMXLQ00

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.

Verified Compatible Models

10642102300, 10642102301, 10642104300, 10642106300, 10642106301, 10660162990, 10660167990, 10660172990, 10660172991, 10660177990, 10660182000, 10660182001, 10660184001, 10660187000, 10660192000, 10660192001, 10660194001, 10660197000, 10660262990, 10660262991, 10660264991, 10660267990, 10660272990, 10660272991, 10660274991, 10660277990, 10660282990, 10660282991, 10660284991, 10660287990, 2ET18GMXJW00, 3XKVN510000, 3XKVN510001, 7ST21HPXLQ00, 7ST21HPXLQ01, 7ST21HPXLQ02, 8ET1WTKXKT04, 8GR9SHKXKT02, 8GT2FTKXSS00, 8GT9FTKXST00, 8VET0WPKKQ02, 8VET0WPKKQ04, 8VET2WPKKQ00, E18PKXYG00, E18PKXYN00, E18PKXYW00, ED25DMXDB00, ED25DMXDN00, ED25DMXDW00, ER2MHKXPL00, ER9SHKXKQ01, ET18GKXHW00, ET18NKXDW06, ET18NKXFW01, ET18NKXFW04, ET18NMFW03, ET18PKXFW01, ET18TKXBW01, ET1CHMXKT02, ET1FHMXLQ00, ET1FHMXMQ01, ET1FHMXMT00, ET1FHTXMT00, ET1FHTXMT02, ET1FTEXMQ00, ET1FTKXKQ07, ET1FTKXKT03, ET1LFKXKB02, ET1LFKXKB03, ET1MHEXRB00, ET1MHKXMT00, ET1MTEXMQ00, ET1MTKXKQ00, ET1MTKXKT08, ET1MTMXKQ02, ET1MTMXKT02, ET1RHMXKT02, ET1WTKXKQ02, ET1WTKXKQ08, ET21MMXJT01, ET21PKXFW01, ET22DQLB00, ET22RKXGT02, ET22RKXGW02, ET2AHTXMQ01, ET2AHTXMQ02, ET8CHMXKT04, ET8GHMXLQ05, ET8LFKXKQ04, ET8MTKXKQ00, ET8WTMXKT07, GR2SHKXKQ00, GR2SHKXKQ02, GR2SHKXKT01, GR2SHKXMS01, GR2SHTXKB00, GR2SHTXKL03, GR2SHTXKT02, GR2SHTXMQ01, GR2SHTXMT00, GR9SHKXKQ00, GR9SHKXKQ01, GR9SHKXKT00, GR9SHKXMQ00, GR9SHMXKQ01, GT19DKXGN02, GT19DKXHW00, GT19DKXJT00, GT1SHTXLQ01, GT1SHTXLT00, GT22DKMXGN00, GT22DKMXGW00, GT22DKXJW01, GT22DMXJB00, GT2SHMXLS01, GT9SHTXLB01, GT9SHTXLQ00, GT9SHTXLQ01, KTRC19KMWH00, RT18DKXAW00, RT18DKXFW01, RT18DKXHW00, RT21LMXKQ00, RT21LMXKQ02, ST18HPXKQ00, ST18HPXKQ01, ST18HPXKQ02, ST18HPXKQ03, ST18PKXHW00, ST21HPXLQ00, ST21HPXLQ01, ST21HPXLQ02, ST21HPXPQ00, ST21PKXHW00, ST21PKXJW00, ST21PKXJW01, ST21PKXKQ00, ST21PKXKQ01, TT22AKXEN00

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.

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All brand names are the property of their respective owners and are used for compatibility reference only.

2149641, 2149643, 2163894, 2172694, 2182380, 2183072, 2221677, 4343917, 4387503, 61002113, R0950042, WP4387503, WP4387503VP

2ET18GMXJW00, 3XKVN510000, 3XKVN510001, 7ST21HPXLQ00, 7ST21HPXLQ01, 7ST21HPXLQ02, 8ET1WTKXKT04, 8GR9SHKXKT02, 8GT2FTKXSS00, 8GT9FTKXST00, 8VET0WPKKQ02, 8VET0WPKKQ04, 10642102300, 10642102301, 10642104300, 10642106300, 10642106301, 10660162990, 10660167990, 10660172990, 10660172991, 10660177990, 10660182000, 10660182001, 10660184001, 10660187000, 10660192000, 10660192001, 10660194001, 10660197000, 10660262990, 10660262991, 10660264991, 10660267990, 10660272990, 10660272991, 10660274991, 10660277990, 10660282990, 10660282991, 10660284991, 10660287990, E18PKXYG00, E18PKXYN00, E18PKXYW00, ED25DMXDB00, ED25DMXDN00, ED25DMXDW00, ER2MHKXPL00, ER9SHKXKQ01, ET1CHMXKT02, ET1FHMXLQ00, ET1FHMXMQ01, ET1FHMXMT00, ET1FHTXMT00, ET1FHTXMT02, ET1FTEXMQ00, ET1FTKXKQ07, ET1FTKXKT03, ET1LFKXKB02, ET1LFKXKB03, ET1MHEXRB00, ET1MHKXMT00, ET1MTEXMQ00, ET1MTKXKQ00, ET1MTKXKT08, ET1MTMXKQ02, ET1MTMXKT02, ET1RHMXKT02, ET1WTKXKQ02, ET1WTKXKQ08, ET2AHTXMQ01, ET2AHTXMQ02, ET8CHMXKT04, ET8GHMXLQ05, ET8LFKXKQ04, ET8MTKXKQ00, ET8WTMXKT07, ET18GKXHW00, ET18NKXDW06, ET18NKXFW01, ET18NKXFW04, ET18NMFW03, ET18PKXFW01, ET18TKXBW01, ET21MMXJT01, ET21PKXFW01, ET22DQLB00, ET22RKXGT02, ET22RKXGW02, GR2SHKXKQ02, GR2SHKXKT01, GR2SHKXMS01, GR2SHTXKL03, GR2SHTXKT02, GR2SHTXMQ01, GR2SHTXMT00, GR9SHKXKQ00, GR9SHKXKQ01, GR9SHKXKT00, GR9SHKXMQ00, GT1SHTXLQ01, GT2SHMXLS01, GT9SHTXLB01, GT9SHTXLQ00, GT9SHTXLQ01, GT19DKXHW00, GT19DKXJT00, GT22DKMXGN00, GT22DKMXGW00, GT22DKXJW01, GT22DMXJB00, KTRC19KMWH00, RT18DKXAW00, RT18DKXFW01, RT18DKXHW00, RT21LMXKQ00, RT21LMXKQ02, ST18HPXKQ00, ST18HPXKQ01, ST18HPXKQ02, ST18HPXKQ03, ST18PKXHW00, ST21HPXLQ00, ST21HPXLQ01, ST21HPXLQ02, ST21HPXPQ00, ST21PKXHW00, ST21PKXJW00, ST21PKXJW01, ST21PKXKQ00, ST21PKXKQ01, TT22AKXEN00, 8VET2WPKKQ00, GT1SHTXLT00, GR2SHTXKB00, GR2SHKXKQ00, GR9SHMXKQ01, GT19DKXGN02