🚙 Shift into reliability with every push!
The Dorman 600-500 Transfer Case Switch is a precision-engineered, direct replacement switch designed for select Chevrolet, GMC, and Oldsmobile models. Rated at 20 Amps and operating at 5 Volts, this durable, panel-mounted push-button switch restores proper 4WD functionality with reliable brass/copper/aluminum contacts. Proudly made in the USA, it ensures OEM-level fit and performance, backed by expert design and craftsmanship.
| Operation Mode | attribute not appiicable to product |
| Current Rating | 20 Amps |
| Operating Voltage | 5 Volts |
| Contact Type | Normally Open |
| Brand | Dorman |
| Item dimensions L x W x H | 3.3 x 2 x 2.1 inches |
| Circuit Type | 2-way |
| Mounting Type | Panel Mount |
| Actuator Type | Push Button |
| Contact Material | Brass Or Copper Or Aluminum |
| International Protection Rating | IP00 |
| Number of Positions | 2 |
| Control Method | App |
| Connectivity Protocol | X-10 |
| Color | Black |
| Wattage | 100 watts |
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Global Trade Identification Number | 00019495115731 |
| Manufacturer | Dorman Products |
| UPC | 019495115731 |
| Model | Transfer Case Shift Motor |
| Item Weight | 0.01 ounces |
| Product Dimensions | 3.3 x 2 x 2.1 inches |
| Country of Origin | USA |
| Item model number | 600-500 |
| Is Discontinued By Manufacturer | No |
| Exterior | Machined |
| Manufacturer Part Number | 600-500 |
| OEM Part Number | 1S3164; FWD-18; FWD16; TCA-2; 15664811; 89059420 |
C**S
Switch
Works great.
R**1
Only Good For 3 Years
Just discovered this switch failed less than 3 years since it was installed.Now I have a major vacuum line cleaning task ahead of me.I do not recommend this Doorman Product
S**C
Part worked
Switch solved my issue good fit
D**.
Hub Actuator Vacuum Switch. As good as the original, maybe better.
This was EXACTLY the part that I needed - the old vacuum switch was allowing a partial leak of vacuum into the line going to the hub lock actuator diaphragm mechanism, causing a "gear grinding" sound to come from the front axle, as the hubs were trying to partially engage even in 2 Wheel Drive. Replacing this switch made sure that vacuum was applied only when it was supposed to be. The old one was stuck with the ball plunger partially depressed, thus the leak in the old one. One installation hint: This part is tipped just a TINY bit forward when properly lined up to thread into the hole in the top of the transfer case. It does NOT go in perfectly vertical. Otherwise, you can spend hours trying to get it in! Also, make sure that you have the little pin on the switch lined up with the depression on the triple line going to it, so that the lines are not mixed up. Otherwise, it WILL NOT work properly!
S**S
Seems just fine. S10 2003 4.3l vacuum actuated 4x4
Didn't fix my problem, was a pretty tight fit, but in warmer weather it wouldn't have been so bad. Seems just as good as the OEM part. My defrost, face vents, and foot heater all run at the same time, and my 4x4 wont run. Its probably a vacuum leak or plugged lines. Not encoder motor or vacuum switch. The encoder motor makes a noise beneath the driver side, and the all lights work, but the front axle wont engage.Hopefully I help someone with this comment.Update: I had a plugged check valve. By the vacuum reservoir. Replaced it and now everything works as it should.
A**N
Installed on GMC Sonoma- Leaks vacuum and won't engage 4WD
Dorman 600-500 Transfer Case Switch-Compatible with Select Chevrolet / GMC / OldsmobileVacuum switch appears to leak.OLD one (removed) would not –disengage- the 4WDthis NEW one (installed) will not –engage- the 4WDAppears to be a defective switch. Not a lot of fun to install.If driven with this installed it would probably suck up transfer case oil as the leak appears to be around the lower area.I would not recommend this.
G**.
Exact match
Due to the location where this is installed. It was very difficult but that’s just the way the car is designed. Product met my expectations.
D**Y
Would not buy again
Allowed fluid past check valve in less than a year.
Trustpilot
3 weeks ago
1 week ago
