PAI MSW-1238 Relay Switch 4-Terminal – Mack / International 39MT Firestone: W01-358-9375

Firestone: W01-358-9375

99 in (101

Manufacturer Mann + Hummel Part Number U58/9 KIT Part Type DEF/Urea Filter Cartridge Kit Outer Diameter 43 mm (1

Cummins: 4088272

PAI MSW-1238 Relay Switch 4-Terminal – Mack / International 39MT Firestone: W01-358-9375The PAI MSW 1238 is a 12V, 4 terminal intermittent duty relay switch (starter heavy load relay) that replaces Mack 2MR358A 85129178 and Navistar 1825898C94 across Mack heavy trucks and International medium and heavy duty trucks. Rated 100 A continuous 750 A surge, SPST, external ground; mounting and terminal hardware included for direct fit at the OE relay bracket location on the firewall or starter circuit junction. Signs You Need a New Relay Switch