XPARTCO XP6974 Dryer Thermostat Kit Replaces WP3387134, WP3392519, W10900067, 279816
The XPARTCO XP6974 is an aftermarket dryer thermostat kit containing four thermal components for Whirlpool-family electric and gas dryers including Whirlpool, Kenmore, Maytag, Amana, KitchenAid, Roper, Admiral, Estate, Crosley, Inglis, and Magic Chef. The kit includes the cycling thermostat (WP3387134), thermal fuse (WP3392519), high-limit thermostat and thermal cut-off kit (279816 / W10900067) — the complete set of heat-sensing and safety components that regulate dryer temperature and prevent dangerous overheating.
These four components work together to control and protect the dryer's heating system. When any one of them fails, the dryer may produce no heat, overheat, run too long, or stop mid-cycle. Because a failed thermal fuse is almost always caused by an underlying overheating condition that also stresses the other components, replacing all four together in a single repair is the recommended approach. Includes all wiring hardware needed for installation. Installs in 20–30 minutes with basic hand tools.
Quick Answer
The XPARTCO XP6974 Dryer Thermostat Kit fixes Whirlpool-family dryers that produce no heat, overheat, take too long to dry, or stop mid-cycle. Includes all four thermal components: cycling thermostat (L155-25), thermal fuse (196°F), high-limit thermostat (L250-80), and thermal cut-off (309°F). Compatible with Whirlpool, Kenmore, Maytag, Amana, KitchenAid, Roper, Admiral, Estate, Crosley, Inglis, and Magic Chef electric and gas dryers.
Common Problems This Kit Fixes
- Dryer produces no heat — thermal fuse or high-limit thermostat has blown
- Dryer takes multiple cycles or very long time to dry clothes
- Dryer overheats — clothes or drum too hot to touch after a cycle
- Dryer shuts off mid-cycle and will not restart
- Dryer tumbles normally but generates no heat at all
- Dryer runs too long because cycling thermostat is not regulating temperature
- Repeated thermal fuse failures — underlying thermostat fault causing recurring overheating
What's in the Kit
Part 1 of 4
WP3387134 Cycling Thermostat
Rated L155-25 · Monitors drum air temperature and cycles the heating element on and off to maintain the set drying temperature · Located on the exhaust duct or blower housing · Should show closed continuity at room temperature
Part 2 of 4
WP3392519 Thermal Fuse
Opens at 196°F (91°C) · One-time safety device located on the exhaust duct · Permanently interrupts power to the heating element if the dryer overheats · Cannot be reset — must be replaced if blown · Most common cause of no-heat in Whirlpool-family dryers
Part 3 of 4
High-Limit Thermostat (279816 / W10900067)
Rated L250-80 · Mounted on the heating element housing · Opens at approximately 250°F to cut power to the heating element if temperature exceeds safe limits · Resets automatically when it cools · Should show closed continuity at room temperature
Part 4 of 4
Thermal Cut-Off Fuse (3977393 / 279816 kit)
Opens at 309°F · Backup one-time safety device on the heating element housing · Permanently interrupts power to the heating element if the high-limit thermostat fails to open · Cannot be reset — must be replaced if blown
Replaces Part Numbers
WP3387134 Cycling Thermostat cross-references:
WP3387134, WP3387134VP, 3387134, 3387135, 3387139, 306910, 3-6910, ET187, AP6008270, PS11741405
WP3392519 Thermal Fuse cross-references:
WP3392519, WP3392519VP, 3392519, 3388651, 694511, 80005, ET401, G4AP0500, AP6008325, PS11741460
279816 High-Limit Thermostat and Thermal Cut-Off Kit cross-references:
279816, 279816VP, W10900067, 3977393, 3977767, WP3977767, WP3977767VP, 3399848, 3399693, 2651, AP3094244, AH334299, EA334299, EAP334299, PS334299
If your part number is not listed above, contact our support team before ordering and we will verify compatibility.
Compatibility
This thermostat kit is compatible with select gas and electric dryers from the following brands:
- Whirlpool dryers (gas and electric)
- Kenmore / Sears dryers (Whirlpool-built models)
- Maytag dryers (gas and electric)
- Amana dryers
- KitchenAid dryers
- Roper dryers
- Admiral dryers
- Estate dryers
- Crosley dryers
- Inglis dryers
- Magic Chef dryers
Important: If your thermal fuse has blown, always check for the root cause before replacing — a clogged exhaust vent is the most common cause of dryer overheating. Clean the full length of the exhaust duct before or after this repair. If the vent is clear, a failed cycling thermostat or high-limit thermostat is likely the root cause.
Key Features
- Complete 4-part thermal kit — covers the cycling thermostat, thermal fuse, high-limit thermostat, and thermal cut-off in a single repair
- Cycling thermostat (L155-25) — regulates drum temperature to maintain consistent, efficient drying
- Thermal fuse (196°F) — one-time safety device that permanently interrupts heat if the dryer overheats
- High-limit thermostat (L250-80, ~250°F) — cuts power to the heating element when temperature exceeds safe limits; auto-resets
- Thermal cut-off (309°F) — backup one-time safety device protecting against heating element runaway
- Replacing all four parts together ensures the complete thermal circuit is renewed — prevents recurrence if a failing thermostat caused the fuse to blow
- Includes all wiring hardware for installation
- Compatible with 11 major appliance brands on the Whirlpool platform
- Aftermarket replacement built to OEM-equivalent quality standards
- DIY repair — installs in 20–30 minutes with basic hand tools
Product Specifications
| Kit Part Number |
XP6974 |
| Condition |
Aftermarket Replacement |
| Application |
Gas and Electric Dryers |
| Kit Includes |
1x WP3387134 Cycling Thermostat, 1x WP3392519 Thermal Fuse, 1x High-Limit Thermostat (L250-80), 1x Thermal Cut-Off Fuse (309°F), wiring hardware |
| Cycling Thermostat Rating |
L155-25 (closes at 155°F, opens at 25°F differential) |
| Thermal Fuse Trip Temp |
196°F (91°C) — one-time, non-resettable |
| High-Limit Thermostat Rating |
L250-80 (opens at ~250°F) — auto-resets |
| Thermal Cut-Off Trip Temp |
309°F — one-time, non-resettable |
| Compatible Brands |
Whirlpool, Kenmore, Maytag, Amana, KitchenAid, Roper, Admiral, Estate, Crosley, Inglis, Magic Chef |
Installation Notes
⚠️ Unplug Dryer and Shut Off Gas Before Starting Disconnect power (and shut off gas for gas dryers) before beginning. Remove the back panel of the dryer to access the heating element housing and exhaust duct. The thermal fuse (WP3392519) and cycling thermostat (WP3387134) are located on the exhaust duct or blower housing — disconnect the wires, unscrew the mounting screws, and install the new parts in the same positions. The high-limit thermostat and thermal cut-off (279816 kit) are located on the heating element housing — disconnect the wires and unscrew the mounting screws to remove the old parts and install the new ones. Reconnect all wires to the correct terminals — take a photo before disconnecting to reference during reinstallation. Reassemble the back panel, restore power, and run a test cycle to verify heat. Tip: Before running the dryer, also clean the full length of the exhaust duct — a clogged vent is the most common root cause of dryer overheating and repeated thermal fuse failures. Tools needed: Phillips screwdriver, 1/4" nut driver, needle-nose pliers.
Frequently Asked Questions
What does each part in this kit do?
The cycling thermostat (WP3387134) monitors the air temperature in the exhaust duct and cycles the heating element on and off to maintain the correct drying temperature — it is the part that controls how hot the dryer gets during normal operation. The thermal fuse (WP3392519) is a one-time safety device that permanently cuts power to the heating element if the dryer overheats above 196°F — it is the most common cause of no-heat in Whirlpool-family dryers. The high-limit thermostat opens at approximately 250°F to cut heating element power if temperature gets too high, and resets automatically when it cools. The thermal cut-off is a backup one-time fuse on the heating element that opens at 309°F if the high-limit thermostat fails to protect the heater.
Why should I replace all four parts instead of just the one that failed?
When a thermal fuse blows, it almost always blew because the dryer overheated — and that overheating event put significant stress on all the other thermal components as well. A failing cycling thermostat is the most common cause of repeated thermal fuse failures: if the cycling thermostat stops regulating temperature correctly, the dryer runs too hot, the high-limit thermostat is repeatedly stressed, and the thermal fuse eventually blows. Replacing just the fuse without replacing the cycling thermostat means the same overheating will blow the new fuse. Replacing all four parts at once eliminates that risk in a single repair.
How do I test these parts with a multimeter?
Set the multimeter to continuity or resistance mode. The thermal fuse (WP3392519), cycling thermostat (WP3387134), and high-limit thermostat should all show closed continuity (near-zero resistance) at room temperature. The thermal cut-off should also show closed continuity at room temperature. Any part that reads open (no continuity / infinite resistance) at room temperature has failed and needs to be replaced. A blown thermal fuse or cut-off will always read open — they are one-time devices and cannot reset.
What causes the thermal fuse to blow repeatedly?
The most common cause by far is a clogged exhaust vent — lint accumulation inside the dryer duct restricts airflow, causing heat to build up inside the dryer cabinet until the thermal fuse trips. Always clean the full length of the exhaust duct before and after replacing these parts. Other causes include a failing cycling thermostat that is not regulating temperature correctly, a stuck heating element relay, or a dryer placed in an enclosed space without adequate ventilation.
Is this kit compatible with both electric and gas dryers?
Yes — the XP6974 kit is compatible with both electric and gas Whirlpool-family dryers. Both types use the same cycling thermostat (WP3387134) and thermal fuse (WP3392519). The high-limit thermostat and thermal cut-off (279816 kit) are located on the heating element in electric models and on the burner assembly area in gas models. Always verify your specific model number before ordering to confirm all four parts apply to your dryer.
Shop With Confidence
A U.S.-based appliance parts retailer specializing in genuine OEM and high-quality replacement parts. We stock components for all major appliance brands and offer fast shipping from our U.S. warehouse. Our team is available to help verify compatibility before you purchase.
✓ Fast US Shipping ✓ Quality Aftermarket Parts ✓ Compatibility Support ✓ Secure Checkout
