Shopping Cart

Your cart is empty.

Your cart is empty.

Dorman 600-399 Front Differential Lock Actuator Compatible with Select Dodge / Ram Models

Free shipping on orders over $29.99

$107.89

$ 51 .99 $51.99

In Stock
  • Ideal replacement - this differential lock actuator directly replaces the original equipment part on specific vehicle years, makes and models
  • Effective fix - installation addresses inoperative differential lock caused by failed original actuator
  • Cost-effective solution - offers original equipment fit and function at a competitive price
  • Trustworthy quality - backed by a team of designers and engineers in the United States
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
  • Direct replacement to ensure a proper fit
  • Sealed for leak resistance
  • Engineered for durability against harsh road and weather conditions, including water intrusion
  • Quality tested to ensure trouble free installation and performance
  • Original Equipment (OE) Part Number: 52114387AE, 52114387AF


This differential lock actuator directly replaces the original equipment part on specific vehicle applications. It is reverse engineered to reliably restore proper functionality.


Damon B.
2025-08-15 15:15:00
I bought a cheaper one and had to replace it. never worked once. This Dorman works excellent and fast.
Tyler Cramer
2025-08-10 19:29:08
Great fit with no leaks
L. Shane
2025-08-07 16:21:43
product was a perfect fit, easy to install and worked perfectly.
thomas j schuerman
2025-08-01 19:06:28
I watched a YouTube video on why my 4x4 and 4x4 auto wasn’t working on my 2019 Ram Limited. This was an easy fix with minimal loss of fluid. I’m not sure what a “stealership” would charge but this is assuredly cheaper.
brian allen
2025-07-17 20:27:39
Installed, worked great for the first couple of engagements and then failed doing exactly what the original did. Save your time and money.
AM
2025-06-09 12:04:19
Works better than OEM. Got this one for my 1500Ram, 44k miles. Original parts just sucks, not reliable and three times more expensive than the aftermarket one.
Matt Deisig
2025-05-23 17:23:18
Item fit and worked just fine. The packaging was virtually non-existent. The part came loose in a cardboard box with no protective wrapping foam or anything of the sort. It had poked through the side of the box but fortunately nothing appeared to be damaged. It is much lighter duty than the OEM part. Fortunately it's only a half hour or so change, so if this one fails I'll go with a more sturdy one next time. In in
G G
2025-05-08 11:07:38
had the service 4wd light on and 2wd would not turn on when start - all lights were off: after replacement 2wd light turns on as normal. 2wd should be on when start. good product.
Ashley Boehner
2025-05-07 11:03:43
My truck was stuck in 4x4, replacing this was easy and fixed the issue - it now shifts in and out of 4x4 easily!
HAymi
2025-05-06 18:15:46
Stop working after exactly 2 use twice 😡😡😡 i want my money back!!!!!!
LUIS CASTILLO
2025-03-29 10:50:25
Se lo instale una semana despues de que me llego, el mecanico me advirtio q esta pieza era china y q no garantiazba el funcionamiento. Aun asi le dije que la instalara bajo mi riesgo, pues bien despues de menos de un mes dejo de funcionar. Ahora tengo que comprar la refaccion original marca mopar, q cuesta el doble y tengo que pagar mano de obra extra. No lo recomiento.
Customer
2025-02-25 14:44:22
The product is very good quality. Was exactly what was offered. The fit was perfect and just as good as OEM. The only complaint was that the product was guaranteed with a 2 day prime delivery and to ari e on Saturday . I ordered on a Thursday but it was not delivered till the Wednesday of the following week.
Ewhen H.
2025-01-11 17:51:29
Works perfectly. Easy to install.
Recommended Products