Heavy Truck Wiper Arms

Wiper arms for heavy truck cabs, listed by truck rather than by dimension. That is how the counter asks for them.

Freightliner is covered by 201901 for Columbia, 201902 for Cascadia, and 201903 driver / 201904 passenger for the M2. The Columbia arm is a 9x3 hook; the Cascadia and M2 arms are 9x4. Mack is covered by a radial arm, an MR flat nose arm, and 104745, a 16" radial with a 1/4" pin connector.

All of these are radial sweep. The Freightliner arms are wet arms, with washer delivery through the arm. If your truck is not listed, check the fitment lookup.