Description
Dash-mounted windshield wiper / washer control switch with yellow/white LED for Mack CV, CX, CHN, CXN, and CXU heavy-duty trucks — PAI 804141. Replaces Mack OEM 1MR4336 (often catalogued as MAK1MR4336) and supersession 25173793. The switch combines wiper speed and washer-pump activation into a single dash-knob assembly that drops directly into the original opening.
Signs You Need a New Wiper Control Switch
- Wipers stuck in one speed or unresponsive to the dash knob
- Washer pump no longer activates when the switch is pressed
- Yellow/white LED illumination dim, flickering, or out
- Knob loose, broken, or seized
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 804141 |
| Part Type | Dash Wiper / Washer Control Switch |
| Indicator | Yellow / White LED |
| Mounting | Direct dash replacement (Mack OEM cutout) |
Cross References
This switch replaces or is equivalent to the following part numbers:
- Mack: 1MR4336, 25173793
- Also known as: MAK1MR4336, 577.62511
Applications
This wiper control switch fits the following Mack heavy-duty trucks:
- Mack CV (Granite) — vocational
- Mack CX (Vision) — on-highway
- Mack CHN / CXN (Pinnacle non-axle-back / axle-back)
- Mack CXU (Pinnacle daycab/sleeper)
For the upgraded P2 variant of this switch (Mack 1MR4336P2 / 20801117), see PAI 804186 instead. Confirm the OEM number on the back of your original switch before ordering.









