Dorman - OE Solutions 4WD Actuator P/N:600-300
When a failed actuator leaves your four-wheel drive inoperative, the Dorman 4WD actuator / differential actuator assembly 600-994 is built to take its place as a direct-fit replacement for the 1996-2000 Toyota Tacoma and 1996-2000 Toyota 4Runner. Dorman lists this part under both names. Dorman reverse engineered it to directly replace the original equipment part, and designed it to help restore proper function.
The actuator is part of the system that engages and disengages four-wheel drive at the axle. Signs it may need replacing include four-wheel drive that will not engage or will not disengage. Other components in the 4WD system can cause similar symptoms, so diagnose the cause before replacing the actuator. For engine-level details, see the "Vehicles it fits" section.
Interchange: 4143635020 · 4144135010
This part cross-references / interchanges with the following part numbers:
Is this Dorman part the right 4WD actuator for a 1996-2000 Toyota Tacoma?
It is listed as a direct-fit replacement for the 1996-2000 Toyota Tacoma. Check the "Vehicles it fits" section to confirm the details for your truck.
Will it also work as a 4WD actuator for the 1996-2000 Toyota 4Runner?
Yes. It is listed as a direct-fit replacement for the 1996-2000 Toyota 4Runner.
What does a 4WD actuator do?
It is part of the system that engages and disengages four-wheel drive at the axle, so the four-wheel-drive system can switch in and out of operation.
What are signs the 4WD actuator may need replacing?
Four-wheel drive that will not engage or will not disengage can be a sign. Other 4WD components can cause the same symptoms, so diagnose the cause before replacing the actuator.
Why is it also called a differential actuator assembly?
Dorman describes 600-994 as a differential actuator assembly, and it is also sold as a 4WD actuator. Both names refer to the same part.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.