These auto-locking hub actuators are just what you need to get your 4WD system working again!


  • Comes as a PAIR
    • Fits both LH (Driver Side) & RH (Passenger Side) FRONT
  • Replaces dealer part number: 7L1Z-3C247-A, 7L1Z3C247A
  • Direct replacements
  • Built to strict quality control standards

These actuators makes a great replacement and has good cost savings over the dealer part!

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

  1. step : Raise and Secure the Vehicle (1:08)
    • Raise the vehicle with a jack
    • Secure the vehicle on jack stands
  2. step : Removing the CV Axle Shaft (1:08)
    • Pry off the wheel center cap with a flat blade screwdriver
    • Remove the cap over the hub nut
    • Remove the 13mm hub nut
    • While holding the tire in place, remove the six twelve-point 12mm bolts from the CV joint
    • Remove the 30mm bolt from the strut assembly using a breaker bar or ratchet and pipe
    • Tap the nut with a hammer to loosen it, if necessary
    • Pry the lower end of the strut assembly from the lower control arm with a pry bar
    • Pull out the CV shaft
  3. step : Removing the Four Wheel Drive Actuator (4:03)
    • Remove the three 8mm bolts from the four wheel drive actuator
    • Pry off the actuator with a flat blade screwdriver
    • Disconnect the vacuum hoses from the actuator
  4. step : Installing the New Actuator (5:00)
    • Connect the vacuum hoses to the new actuator
    • Put the actuator into place
    • Start the three 8mm bolts by hand
    • Tighten the three 8mm bolts
  5. step : Reattaching the CV Axle (6:02)
    • Slide the CV Axle back into place
    • Reconnect the strut at the lower control arm
    • Push the bolt through where the strut connects to the lower control arm
    • Attach the nut
    • Tighten the bolt to between 95-100 foot-pounds of torque
    • Start the 12-point 12mm bolts into the CV axle by hand
    • Tighten the bolts preliminarily
    • Tighten the bolts to 25 foot-pounds in a crossing or star pattern
    • Reinstall the 13mm nut on the end of the axle
    • Reinstall the cap over the nut
    • Reinstall the center cap
    • Lower the vehicle

Tools needed for replacement:

    General Tools

  • Floor Jack
  • Hammer
  • Jack Stands

  • Pliers, Cutters & misc Wrenches

  • Slip-Joint Pliers

  • Ratchets & Related

  • 1/2 Inch Breaker Bar
  • A Piece of Pipe (for leverage)
  • Ratchet
  • Torque Wrench

  • Screwdrivers & Related

  • Flat Blade Screwdriver
  • Pry Bar

  • Sockets - Metric

  • 12mm Socket
  • 13mm Socket
  • 24mm Socket
  • 30mm Socket
  • 8mm Socket

4.6 / 5.0
12 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Worked as described
They arent OEM but they work as described. Recommended to get rid of that terrible scrapping and rattling noise while driving,
July 11, 2018
3 weeks ago
I’m so satisfied with the product and thankfully for fast ship I did the installation and everything work and fit perfectly thank you so much
May 27, 2018
2 months ago
2010 f150 4×4 vaccum hubs
Vaccum hubs fit petfect on my 2010 f150
Nice quality. Im happy with the parts
I would have give 5 star if shipping was a bit faster
May 3, 2018
3 months ago
great replacement
Another great part from 1A auto at a great price. Replaced and got rid of that horrible grinding sound (almost like dragging sheet metal). Replaced in October and 4 wheel drive worked perfectly all winter. Bring on mud season.
April 11, 2018
8 months ago
First time customer
Part seems quality made. Just installed it and working as it should. Time will tell if it last.
March 26, 2018
4 months ago
Auto locking hub actuator and solenoid
The quality of the parts was very good and everything fit perfectly!
February 15, 2018
5 months ago
Look like the dealer parts working fine no complaints
February 10, 2018
5 months ago
Locking hub
Love it easy to replace truck rides and sounds great
November 11, 2017
9 months ago
great fit
I put this on my 2004 F150 stx and it fix perfectly. The rattling noise is now gone and it seems to be working perfectly. From my searches, this was also the best priced part as well!
November 3, 2017
8 months ago
I have ordered a few things and have saved a lot of money, I have to still have to get some other things to do this job right and as soon as I have the money to order the next part I know with in a few days time I will have it in my hand! My all time go to for parts for my FORD. Thanks 1AAuto you have my business in the bag. Customer service is all time high marks as well! You just can not go wrong with 1AAuto!
October 25, 2017
9 months ago
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Browse 1 question Browse 1 question and 3 answers
My cv-joint doesn't have the 6 13mm bolts referenced in the video or I can't find them on my 2013 Ford f150 4x4? I'm trying to change out the front actuator hubs
Stexas97 on Oct 18, 2017
BEST ANSWER: Changing these doesn't require removing the cv axle. I recommend this method.

Vehicle Fit

  • 2003-2014 Ford Expedition Front Auto-Locking Hub Actuator Pair
  • 2004 Ford F150 Truck New Body Style Front Auto-Locking Hub Actuator Pair
  • 2005-2014 Ford F150 Truck Front Auto-Locking Hub Actuator Pair
  • 2006-2008 Lincoln Mark LT Front Auto-Locking Hub Actuator Pair
  • 2003-2014 Lincoln Navigator Front Auto-Locking Hub Actuator Pair
Part #: 1ASHS00588

How-to Video:

(08:51 min)