I. Basic Parameters

OE Part Number: 21N6-01273; DC 24V; Genuine Wiper Delay Control Assembly (Integrated PCB Relay type—not a standard plug-in blade relay)

Compatible Series: 21N6-01272 (Older Wiper Controller Model); Features a universal plug and identical physical dimensions, though part numbers are not interchangeable.

Plug: Yellow 12-Pin dedicated direct-plug connector, equipped with a metal mounting bracket; Plugs directly into the vehicle's original wiring harness—no wiring modification required.

Functions: Controls wiper speed (High/Low), intermittent pause intervals, return-to-rest stop, and automatic "Park" reset.

II. Compatibility: Hyundai - 7 Series Excavator Mainstream Models

R60-7, R80-7, R110-7, R140W-7, R210-7, R215-7, R225-7, R305-7 (Full Series—Cummins / Mitsubishi Engines)

III. Common Fault Symptoms

Wipers operate only at high speed (no intermittent mode), fail to stop, or do not automatically return to the rest position when the switch is turned off.

Wipers are completely unresponsive / occasionally start and stop intermittently.

Intermittent speed setting is non-functional; wiper fails to activate in conjunction with the washer fluid spray.