| Authentic Robertshaw OEM Genuine Robertshaw 811440 (66004-AF23) — the OEM-equivalent supplied directly to Whirlpool Corp. | Drop-In for 3149404 Platform Replaces Whirlpool 3149404, WP3149404, AP6007668, PS11740785, 311847, 311856, 311857, 3148951, 314144, W10295576. |
| 240V / 4.4-5.8A Rated Correct electrical match for the 6" small surface element (1250W coil) on Whirlpool-family ranges. | Same/Next Day Shipping From our Florida warehouse with USPS tracking. 4,200+ completed transactions, 100% positive feedback. |
| 30-Day Returns — No Questions Asked | |
An infinite switch is a bimetal heat regulator. As current flows to the surface element, a small internal bimetal strip warms up, expands, and trips a set of contacts open — cutting power. As it cools, the contacts close again, cycling the 240V power in precisely timed intervals. Failure modes: pitted contacts cause it to stick fully on, weakened bimetal won't trip, spring tension changes make the knob feel loose, and degraded contacts produce inconsistent heat.
| Whirlpool | Kenmore | KitchenAid | Maytag |
| Roper | Estate | Inglis | Amana |
| Manufacturer | Robertshaw |
| Model Number | 811440 / 66004-AF23 |
| Whirlpool Cross References | 3149404, WP3149404, AP6007668, PS11740785, 311847, 311856, 311857, 3148951, W10295576 |
| Application | 6" Small Surface Burner (1250W coil) |
| Voltage / Amperage | 240V AC / 4.4-5.8A |
| Country of Origin | Mexico |
| Condition / Warranty | New — Authentic OEM / 1 Year Manufacturer |
Nextrade Companies operates from our Florida warehouse, supplying genuine OEM replacement parts to HVAC pros, heating contractors, and appliance service companies. With 4,200+ completed transactions and 100% positive feedback, our US-based team handles every order with the attention to detail you'd expect.