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The Dial 7581 is a 36-inch mini plug and cord designed for MasterCool and OEM-style evaporative cooler systems operating at 230 volts. This replacement cord uses a 16-gauge, 3-wire SJTW jacketed construction, making it a reliable choice for two-speed evaporative cooler motors rated up to 1 horsepower. HVAC technicians and evaporative cooler service professionals rely on this type of cord when replacing worn or damaged power connections on single-inlet cooler units. The SJTW jacket is water-resistant and built to handle the demanding conditions common to swamp cooler installations, including exposure to moisture, dust, and outdoor temperature swings. At 36 inches in length, this cord fits well in tight equipment spaces where a standard-length cord would be too bulky. The mini plug is sized to fit directly into OEM-style receptacles, making installation straightforward without the need for adapters or modifications. The 16-gauge wire is rated to carry the current required by residential and light commercial evaporative cooler motors, supporting consistent power delivery across both speed settings. This plug-and-cord assembly is a plug-and-play replacement, meaning technicians can swap it in quickly during a service call or scheduled maintenance. It is also suitable for new unit setups where an OEM-compatible cord is needed. Dial Manufacturing has been producing evaporative cooler parts and accessories for nearly 50 years, and this cord reflects that focus on durable, application-specific components. Keeping a replacement cord like the 7581 on hand reduces downtime during peak cooling season.
The Dial 7581 delivers a direct-fit, 230-volt replacement cord for OEM-style evaporative cooler receptacles, built with 16-gauge SJTW construction for dependable performance in two-speed motor applications.
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