Whirlpool Refrigerator/freezer bimetal defrost thermostat WP4387503

Is This the Right Part?

✅ Cross Reference Information

Common Symptoms

• Freezer not defrosting
• Ice or frost buildup
• Refrigerator or freezer section too warm
• Refrigerator running too long

Check Before Replacing

• With power disconnected, inspect for excessive evaporator frost or ice buildup consistent with a defrost-system problem.
• Verify the complete appliance model number against the part’s compatibility listing before ordering.
• Do not assume the thermostat is the sole cause of a defrost failure; the heater, timer, control, and wiring may also require testing.

Pro Tip

Part Details

Installation Notes

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

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, ET18NKDG00, ET1CHMXKT03, GARF19XXPK02, GR2FHMXPS01, GR2FHMXPT00, GR2SHTXKT00, GR2SHWXPL00, GR2SHWXPQ00, GR9FHMXPQ00, GT1PHWXPQ00, GT22DCXJB00, GT22DCXJT01, GT9SHKXMQ03

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