Whirlpool, Maytag & KitchenAid Refrigerator Defrost Thermostat Parts — Models & Compatibility

When your freezer stops defrosting or you're finding frost buildup thick enough to scrape off with a putty knife, the defrost thermostat is usually the culprit. This replacement part (67003426) fits a wide range of Whirlpool, Maytag, KitchenAid, Amana, and Kenmore refrigerators — from bottom-freezer French doors to side-by-sides. Below, you'll find which models it fits and what you need to know before ordering.

Is This the Right Part for Your Model?

Check your refrigerator's model number against the compatibility list below. You'll find the model tag inside the fridge compartment — usually on the left wall near the top, or sometimes behind the crisper drawers. Look for a white sticker with both the brand name and a series of letters and numbers (like MBF2256KEB or KBRS22ETSS00). If your exact model appears in our list, this thermostat will fit.

About This Replacement Part

The defrost thermostat sits on the evaporator coils and monitors temperature during the defrost cycle. When it fails, you'll typically see one of two problems: either the freezer won't defrost at all (leading to frost buildup and reduced cooling), or it won't stop defrosting (making the freezer section too warm). Some units show both symptoms intermittently. This OEM-equivalent part replaces WP67003426, 8208287, 12639302, and AP6010356. It's a direct fit for Maytag French door models like the MFC2061KES and MBF series, KitchenAid bottom-freezers including KBRS and KBFS models, plus select Whirlpool and Amana refrigerators.

Common Signs You Need This Part

Frost buildup inside the freezer is the most obvious symptom — ice accumulates on the back wall or around food packages. You might also notice the fridge compartment getting too warm while the freezer struggles to maintain temperature. Some owners report hearing the compressor running constantly without actually cooling properly. If you're scraping ice off the evaporator cover every few weeks, the defrost thermostat isn't opening and closing at the right temperatures.

Cross-Reference Numbers

This part supersedes and replaces these manufacturer part numbers: WP67003426, 8208287, 12639302, AP6010356. If you're holding an old thermostat with any of those numbers stamped on it, this is your replacement.

Compatible Models

This defrost thermostat fits the following refrigerator models. Match your complete model number exactly:

• Maytag: AFD2535FES, MFC2061KES, MBF1956HES, MBF2254HES, MBF2255KEB, MBF2256KEB
• KitchenAid: KBRS19KTWH, KBRS19KTBL, KBRS22ETSS00, KBFS25ETSS00, KBRA22ERSS00
• Whirlpool: EB9SHKXVQ
• Amana: ABB1921DEW, ABB2221FEB, ABC2037DES

What's Included

You're getting the defrost thermostat only. Mounting hardware isn't typically included since you'll reuse the existing bracket from your old thermostat. The part comes ready to install — just disconnect the old one and wire in the new unit.

Need Help Finding Your Model?

Can't locate your model tag? Open the refrigerator door and check the left or right sidewall near the top. Some Maytag models hide it behind the top crisper drawer — pull the drawer completely out and look at the ceiling of that compartment. KitchenAid units often place it on the left wall just below the light assembly.