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⚡ Electrify your 4WD — don’t let old tech slow your adventure!
The Dorman 600-490 4WD Actuator is a direct replacement upgrade kit designed to convert older thermal differential actuators in select 1988-1996 Chevrolet and GMC trucks to a faster, more reliable electric system. This kit includes the electric actuator and harness, engineered for precise fit and enhanced 4WD performance, backed by Dorman’s extensive automotive expertise.





| ASIN | B0BRLXH95W |
| Assembly Required | No |
| Brand | Dorman |
| Customer Reviews | 4.4 4.4 out of 5 stars (52) |
| Date First Available | 29 March 2023 |
| Exterior | Ready To Paint If Needed |
| Generic Name | 4WD Actuator Compatible with Select Chevrolet / GMC Models |
| Item Dimensions LxWxH | 25 x 7.5 x 25.4 Centimeters |
| Item Weight | 640 g |
| Item model number | 600-490 |
| Manufacturer | Dorman |
| Manufacturer Part Number | 600-490 |
| OEM Part Number | 26013495; 26060073; 88959465 |
| Product Dimensions | 24.99 x 7.49 x 25.4 cm; 639.57 g |
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