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Description
3387134 Cycling Thermostat 3392519 Thermal Fuse 3977393 Thermal Cut-off Switch 3977767 Hi-Limit Thermostat Kit3387134 Cycling Thermostat & 3392519 Dryer Thermal Fuse & 3977393 Thermal Cut off Switch & 3977767 High limit Thermostat Kit Key Features Comprehensive Thermal Protection: This master kit provides a complete set of safety and regulation sensors designed to monitor internal temperatures, manage heating cycles, and provide multi stage emergency shut off protection. Precision Cycling Regulation: The 3387134 cycling thermostat acts as the primary control,
3387134 Cycling Thermostat & 3392519 Dryer Thermal Fuse & 3977393 Thermal Cut-off Switch & 3977767 High-limit Thermostat Kit
Key Features
- Comprehensive Thermal Protection: This master kit provides a complete set of safety and regulation sensors designed to monitor internal temperatures, manage heating cycles, and provide multi-stage emergency shut-off protection.
- Precision Cycling Regulation: The 3387134 cycling thermostat acts as the primary control, accurately cycling the heating element on and off to maintain the target temperature selected on your console for optimal drying and fabric care.
- Dual-Stage Emergency Cut-Off: Includes both the 3392519 (blower-side) and 3977393 (heater-side) thermal fuses, offering non-resettable "one-time" protection that immediately kills power to prevent fires in the event of severe airflow restriction.
- High-Limit Safety Backup: The 3977767 high-limit thermostat serves as a secondary regulator on the heater housing, designed to trip if temperatures exceed the cycling thermostat's range but haven't yet reached the catastrophic levels that blow the thermal fuses.
Replaces / Cross-Reference Part Numbers
- 3387134 (Cycling Thermostat): WP3387134, AP6008270, PS11741405, 306910, 3387135, 3387139, WP3387134VP, 2011, PD00002313, ET187
- 3392519 (Thermal Fuse): WP3392519, AP6008325, PS11741460, 80005, 694511, 3388651, WP3392519VP, ET401, PD00002311, EAP11741460
- 3977393 (Thermal Cut-Off Fuse): WP3977393, AP3094244, PS334299, 3399848, 279816VP, 3389946, 3398671, 695563, AH334299, EAP334299
- 3977767 (High-Limit Thermostat): WP3977767, AP6009043, PS11742185, 3399693, WP3977767VP, 898078, AP3131941, PS351925, EAP351925, PD00003007
Compatibility & Fitment
This universal sensor kit is the standard maintenance set for virtually all Whirlpool-manufactured dryers (Electric and Gas) produced since the 1990s. Key compatible brands include:
- Whirlpool & Maytag: Fits hundreds of LER, LGR, MED, and MGD series models (e.g., LER4634EQ2, MEDC215EW1, LER4634PQ0).
- Kenmore (110 Series): Compatible with nearly all 110-prefix "Ultra Fabric Care" and standard dryers (e.g., 110.60852990, 110.70802990).
- KitchenAid & Amana: Fits various KEDS and NED series units utilizing the top-lint-filter design.
- Roper, Estate, & Crosley: Direct fit for dozens of budget-friendly models utilizing this standardized four-part sensor configuration.
When to Replace
- No Heat at All: The most common symptom—the dryer drum turns and air blows, but it never gets warm. This indicates a blown thermal fuse or high-limit thermostat on the heater box.
- Dryer Won't Start: On most electric models, a blown 3392519 blower fuse will break the circuit to the motor, preventing the unit from starting entirely.
- Overheating Clothes: If the 3387134 cycling thermostat fails in a "closed" position, the heater may stay on constantly, making the cabinet hot to the touch and risking fabric damage.
- Dryer Shuts Off Mid-Cycle: The unit stops unexpectedly after a few minutes as the safety sensors detect a rapid, unsafe rise in temperature due to back-pressure.
- Intermittent Heating: The dryer provides heat occasionally or takes multiple cycles to dry a single load, suggesting one of the regulators is out of calibration.
Installation Tips
- Safety First: You MUST unplug the dryer. Working on the heater box involves 240V circuits which are extremely dangerous if the unit is powered.
- Clean the Venting: **CRITICAL:** Sensors and fuses fail because of clogged dryer vents. Before installing this new kit, use a vacuum to clean the internal blower housing and the entire exhaust duct to the outside wall.
- Location Guide: The 3392519 is located on the blower housing (rear or front-bottom depending on model). The 3977393 and 3977767 are mounted directly to the side of the metal heating element box.
- Terminal Check: Ensure all wire connectors are tight when pushed onto the new terminals. Loose connections create "arcing" and localized heat, which can melt your new parts or wires.
- Photo Reference: Take a photo of the wiring on the cycling thermostat (3387134) before removing it. It often has four terminals, and the internal heater vs. external heater wires must be in the correct positions.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.3 ★★★★★
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Product Reviews
★★★★★ 5
Very Good
Style: M705
I still haven't had to change the batteries since I bought this mouse.
I use it every day, mainly for gaming. It works great, no lag, It's quick and responsive.
Its the best mouse I have ever owned.
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Beware of the Top Button!!😁
Style: M705
A smooth but weighted feel on a mouse pad. I have mice that move with a much lighter touch, but this is great for the computer I use with my main TV screen. Beware of the top damnable button, the one just before the scroll wheel. It turns off the clicky graduations you wheel as you roll the scroll wheel with your fingertip. When used it unleashes a whirling dervish of a gremlin, your screen will continue to scroll after you want it to stop. Sometimes it will start on its own! Incantations, voodoo, chick bones, curses and magic wands have no effect. Yelling seems to make it worse. There is no other cure other than to push the top button from Hades again. Clicks from the two main buttons are easily audible but not obnoxious. The side buttons for screen forward & back work very well also. This is my second one of these, the first stopped moving smoothly on a pad, no amount of polishing seemed to help so I retired it.
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Reviewed in the United States on July 27, 2025
★★★★★ 5
Important Info for Connecting Replacement Mouse
Style: M705
I purchased the MK705 mouse to replace the same model that had simply worn out after over 13 years of faithful service. The MK700/710 Logitech keyboard is still going strong, albeit with a few worn keys.
I did however run into an issue when installing the new mouse. At first I left the old unifying receiver that came with the old mouse plugged into a usb port. I installed the batteries in the new mouse, turned it on, and found that it would not work. I figured it needed the new unifying receiver, so I turned off the keyboard and mouse and plugged the new receiver into the same USB port. The new mouse then worked but the keyboard would not. I couldn't figure out what was wrong, so I phoned Logitech support. The gentleman I spoke with walked me through the connection process, which was done on their website "logiwebconnect.com". Should you run into the same issue, the process is simple. You probably won't need any help from tech support, but if you do, they were easy to get in touch with.
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Reviewed in the United States on July 23, 2025
★★★★★ 5
Still the champ
Style: M705
Love it!!! Got this originally when it first came out. The people who talk about the scroll wheel are not very smart. It has a button to switch from hyper to regular scrolling.
I do use a mouse pad. So it moves fine. Feels very comfortable in your hand. Obviously this is not for gaming. Great mouse for your home office computer.
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Reviewed in the United States on July 30, 2025
★★★★★ 5
Dependable, Reliable
Size: 1 Pack, Style: USB Receiver, Color: Swift Grey, Size: 1 Pack, Style: USB Receiver, Color: Swift Grey
As advertised. Logitech, best mouse for your hard-earned cheddar!
It’s not that the (years) old Logitech mouse failed in any operational way, it just got that gummy, sticky surface texture that’s impossible to remove. While shopping for a replacement I noticed an off-brand mouse/keyboard combo and thought, “hey, 2 for 1”…mistake. All was well for about three weeks, long enough that when the gremlins arrived I didn’t immediately associate the new hardware. For the purposes of this discussion, gentle reader, know that I run legacy (what I affectionately refer to as, “Lazarus”) builds. Rigs that started life running Windows Vista/7, died, and that now, resurrected, run 10 and 11, and all that that implies. So, when a mouse started stuttering, of course I thought it was a gremlin in the machine, right? I spent more days than I am comfortable sharing with you pouring over processes and background apps, and registry trims…before Accam’s Razor suggested I eliminate the mouse as a variable. Changing the battery was ineffective, but when I swapped in the ooold Logitech…Yahtzee/Bingo/Booyah…smooth and precise…butter! All I needed was a new Logitech mouse.
So, if you’re here you likely are having mouse issues of your own, or you just need one that works…this is it!
😉
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Reviewed in the United States on May 13, 2026