



🚙 Unlock your 4WD’s full potential—don’t get left behind!
The Dorman 600-100 4WD Actuator is a direct OE replacement part designed for select Chevrolet and GMC vehicles. Engineered in the USA, it restores four-wheel drive functionality with a reliable rotary actuator, easy clamp connector installation, and precise fit guaranteed by vehicle-specific compatibility checks.






| Operation Mode | OFF-NONE-ON |
| Current Rating | 2 Amps |
| Operating Voltage | 120 Volts |
| Contact Type | 10pdt |
| Connector Type | Clamp |
| Brand | Dorman |
| Terminal | Spade |
| Item dimensions L x W x H | 8.7 x 3.4 x 2.3 inches |
| Circuit Type | 1-way |
| Actuator Type | Rotary |
| Contact Material | Metal |
| International Protection Rating | IP00 |
| Control Method | Touch |
| Connectivity Protocol | X-10 |
| Color | Black |
| Wattage | 240 watts |
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Global Trade Identification Number | 00019495058946 |
| Manufacturer | Dorman Products |
| UPC | 019495058946 |
| Model | Actuator |
| Item Weight | 9.6 ounces |
| Product Dimensions | 8.7 x 3.4 x 2.3 inches |
| Item model number | 600-100 |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | 600-100 |
| OEM Part Number | 1S10774; 742D421; A401421; FWD10; FWD12; FWD13; FWD17; TCA-1; 26013495 |
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