| Product Line | Electrical |
| Category Name | Switches & Flashers |
| Part Type | Relay Switch |
| Alternate Part Name | Glow Plug Relay, Intermittent Duty Solenoid, Power Relay, Relay Switch w/ Flat Mounting Bracket |
| OEM Part Number | 2MR338 |
| Application Type | Heavy Duty Trucks, Semi-Trucks |
| Terminal Connection Type | Stud |
| Terminals Count | 3 |
| Thread Large Pole Size | 5/16-18 UNF-2A |
| Thread Small Pole Size | #10/32 UNF-2A |
| Material | Metal, Thermoplastic Polymer |
| Current Rating | 100 A |
| Operating Voltage | 12 Volts |
| Net Weight | 0.70 lb. |
| Cross References | 1693479, 1693479C91, 25163412, 2MR338, 2MR338A, 421520, 4216520, 533318M91, AM53945, MSW-1240HP, MSW1240HP, SAZ4201X 15283 15-283, SAZ4201X 15283 15283 |
| Intended Application | - Compatible with Mack truck electrical systems, 3-terminal relay switch, intermittent type, with external ground, used to switch high-consumption electrical loads at 12V by means of a low amperage control signal.
- Always compare with your OEM part number prior to purchase to confirm full compatibility.
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