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Home/Washer & Dryer Parts/Dryer High Limit Thermostat/3977767
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3977767 Dryer High Limit Thermostat Compatible with Whirlpool Kenmore Maytag Roper, Replaces WP3977767 AP6009043 3399693 PS11742185
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Aftermarket Replacement · Factory Direct
OEM-compatible part built to original specifications. Not manufactured by or affiliated with the original equipment brand.

3977767 Dryer High Limit Thermostat Compatible with Whirlpool Kenmore Maytag Roper, Replaces WP3977767 AP6009043 3399693 PS11742185

SKU: 3977767
OEM RetailBranded
$11.53
Via distributor
Source: RepairClinic.com · Mar 2026
OEM brand & packaging
Factory direct price
1-year warranty
Our PartBest Value
$9.99
Factory direct
OEM-Compatible
Meets OEM specifications
Factory direct price
1-year warranty
Save by going factory direct
OEM-compatible · no distributor markup
$1.54
13% less than OEM retail
Order within --:-- to ship today
Repair Time15-30 Minutes
DifficultyEasy
DIY FriendlyYes
Tools Needed
Phillips Head ScrewdriverNeedle Nose PliersMultimeter
Qty
Ships from China · 10–20 business days
No sales tax outside CA
or
3977767 Dryer High Limit Thermostat Compatible with Whirlpool Kenmore Maytag Roper, Replaces WP3977767 AP6009043 3399693 PS11742185
$10.99 Original price was: $10.99.$9.99Current price is: $9.99.
In Stock

This Part Fixes These Problems

No Heat or Not Enough Heat

Dryer runs normally but produces no heat, or heat is insufficient to dry a full load.

Takes Too Long to Dry

Clothes require two or more full cycles to dry completely due to inadequate or intermittent heat.

Dryer Shuts Off Mid-Cycle

Dryer stops running before the cycle is complete, triggered by a faulty thermostat tripping prematurely.

Dryer Running Too Hot

Excessive heat is emitted even on low heat settings because the thermostat fails to cut power at the correct temperature.

Will Not Start

Dryer fails to begin a cycle due to an open high limit thermostat interrupting the circuit at startup.

Repair Guides

Whirlpool & Kenmore Dryer High Limit Thermostat Parts — Models & Compatibility
May 28, 2026
How to Extend Your Whirlpool Dryer High Limit Thermostat Life — Maintenance Guide
May 25, 2026
Whirlpool Dryer Not Heating — 5 Causes & How to Fix (Even When Drum Spins)
May 24, 2026
How to Replace 3977767 High Limit Thermostat on Whirlpool Dryer — Step-by-Step
May 23, 2026
OEM vs Aftermarket 3977767 High Limit Thermostat for Whirlpool/Kenmore: Honest Price Breakdown
May 22, 2026

Product Description

Why Choose Our 3977767 Dryer High Limit Thermostat?

🔧
Built to OEM SpecificationsEngineered to match OEM spec L250-80 — opens at 250°F (121°C) to cut power to the heating element and prevent dangerous overheating. Includes terminal extension arm for direct plug-in installation.
🔥
Critical Safety ProtectionActs as a temperature-activated safety switch on the heating element housing. When dryer temperature exceeds the 250°F threshold, this thermostat immediately interrupts the circuit to prevent fire risk and protect your appliance.
✅
Wide Brand CompatibilityDirect fit for Whirlpool, Kenmore, Maytag, Roper, Amana, KitchenAid, Jenn-Air, Admiral, Magic Chef, Norge, Crosley, Estate, and Inglis dryers — covers 875+ models across multiple brands.
🛠️
Easy DIY InstallationRequires only basic hand tools (Phillips screwdriver, needle-nose pliers) and minimal disassembly. Novice-friendly repair that most homeowners can complete in under 30 minutes — no professional service call needed.
📐
Durable Metal & Plastic ConstructionMade from high-grade metal and plastic composite materials that withstand repeated thermal cycling. Tested to meet OEM performance standards for reliable, long-lasting operation.
💰
Fraction of OEM CostSave significantly vs. Whirlpool OEM pricing while getting the same L250-80 rated performance. Stop wasting money at the laundromat — restore your dryer today for less.

💡 Pro Tip: How to Diagnose a Faulty High Limit Thermostat

Your part is likely the culprit if you notice any of the following:

⚠️ Dryer runs but produces no heat or not enough heat to dry clothes

⚠️ Clothes take much longer than usual to dry (2+ cycles needed)

⚠️ Dryer repeatedly shuts off mid-cycle before clothes are dry

⚠️ Dryer runs excessively hot even on low heat settings

🔍 Confirm diagnosis: Set your multimeter to continuity mode and probe both terminals of the thermostat at room temperature. A healthy thermostat reads CLOSED (continuity). If your meter shows OPEN (no continuity) at room temperature, the thermostat has failed and must be replaced. Always check for lint-blocked exhaust venting first — restricted airflow is the #1 cause of high limit thermostat failure.

📦 What's in the Box

✅ 1× Dryer High Limit Thermostat (L250-80, with terminal extension arm)

Questions & Answers

How do I know if my 3977767 high limit thermostat is bad without replacing it first?
Answered by Support Team  ·  Mar 15, 2024
Use a multimeter set to continuity (or resistance) mode. Disconnect the wires from the thermostat and probe both terminals at room temperature. A good thermostat should show CLOSED continuity (near-zero ohms). If your meter reads OPEN (infinite resistance / no beep), the thermostat has failed and needs replacement. This test takes under 2 minutes and saves you from unnecessary part purchases.
What causes the high limit thermostat to fail repeatedly?
Answered by Support Team  ·  Nov 20, 2023
The most common root cause is restricted airflow — a clogged or kinked exhaust vent forces the dryer to run hotter than normal, which trips and eventually burns out the high limit thermostat. Before installing your new 3977767, clean the entire exhaust duct from the dryer to the exterior wall cap. Also check for crushed flexible duct behind the dryer. If you skip this step, the new thermostat may fail again within weeks.
Is this 3977767 thermostat compatible with my Kenmore dryer?
Answered by Support Team  ·  Jan 8, 2025
Yes — the 3977767 / WP3977767 high limit thermostat is compatible with a wide range of Kenmore dryers, including models beginning with 110.60012, 110.60022, 110.60172, 110.61812, 110.62602, and many more. Since Kenmore dryers in this category are manufactured by Whirlpool, this thermostat fits both brands. Enter your full model number on our compatibility checker to confirm before ordering.
Should I replace the thermal fuse at the same time as the high limit thermostat?
Answered by Support Team  ·  Jul 22, 2024
It is strongly recommended. The thermal fuse (part 3392519) and the high limit thermostat (3977767) work together as the dryer's overheat protection system and are often sold as a kit. If one has failed due to overheating, the other is under similar stress and may be close to failure. Replacing both at the same time costs only a few extra dollars but saves you from repeating the repair job in a short period.
Does this aftermarket 3977767 thermostat perform the same as the original Whirlpool part?
Answered by Support Team  ·  Feb 10, 2026
Yes. Our replacement 3977767 is manufactured to the same L250-80 specification as the OEM WP3977767 — it opens at 250°F and includes the same terminal extension arm for direct installation. The physical appearance may differ slightly from your original part, but the electrical ratings, mounting configuration, and performance are equivalent. It installs in the same location and connects to the same terminals without modification.

We typically respond within 1 business day. Include your appliance model number for the fastest answer.




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    Disclaimer: Compatibility information, part numbers, and model fitment data on this page are sourced from manufacturer databases and third-party references. While we strive for accuracy, please verify your appliance model number before ordering. Heima is not responsible for errors or omissions in compatibility listings.

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