In the past, replacing struts required specialized tools to compress, remove and transfer the old spring and mount.  Pre-assembled with all new parts, our complete strut and spring assemblies make this job much quicker and easier for the do-it-yourself mechanic.

Each complete strut & spring assembly contains:

  • Upper Strut Mount
  • Strut Bearing
  • Coil Spring
  • Boot & Bumper Kit
  • Gas-charged Strut 

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. Please keep your invoice for proof of this warranty.

  1. step : Removing the Wheel (0:27)
    • Loosen the five 19mm lug nuts
    • Raise and support the vehicle
    • Remove the lug nuts
    • Slide the wheel off the hub
  2. step : Removing the Strut (0:53)
    • Apply rust penetrant to the strut
    • Unclip the plastic retainer from the top of the strut
    • Remove the three 13mm nuts from the top of the strut
    • Remove the 24mm bolt from the bottom of the strut
    • Remove the flag nut from the control arm
    • Lower the control arm and lift the strut out of the control arm
    • Remove the 21mm nut from the tie rod ball joint
    • Strike the wheel knuckle with a hammer to loosen the tie rod ball joint
    • Separate the tie rod from the wheel knuckle and set it aside
    • Remove the strut
  3. step : Installing the Strut (3:13)
    • Remove the 18mm nut from the upper control arm ball joint
    • Strike the wheel knuckle with a hammer to loosen the upper control arm ball joint
    • Separate the upper control arm from the wheel knuckle
    • Put the strut into place
    • Start the three 13mm nuts at the top of the strut
    • Start the 24mm bolt into the bottom of the strut
    • Thread the flag nut onto the 24mm bolt
    • Tighten the three 13mm nuts
    • Clip the plastic retainer onto the top of the strut
    • Raise the suspension to ride height with a jack
    • Place the upper control arm ball joint into the wheel knuckle
    • Fasten the 18mm bolt onto the upper control arm nut
    • Tighten the control arm nut to 41 foot-pounds of torque
    • Place the tie rod ball joint into the wheel knuckle
    • Fasten the 22mm nut onto the wheel knuckle
    • Tighten the 22mm nut to 52 foot-pounds
    • Tighten the 24mm bolt at the bottom of the strut
    • Lower the suspension and remove the jack
  4. step : Installing the Wheel (6:51)
    • Slide the wheel into place
    • Start the five 19mm lug nuts
    • Lower the vehicle to the ground
    • Tighten the lug nuts to 100 foot-pounds in a crossing pattern

Tools needed for replacement:

    General Tools

  • Jack Stands
  • Hammer
  • Floor Jack

  • Materials, Fluids, and Supplies

  • Rust Penetrant

  • Ratchets & Related

  • Ratchet
  • Torque Wrench
  • Socket Extensions

  • Screwdrivers & Related

  • Pry Bar

  • Sockets - Metric

  • 24mm Socket
  • 21mm Socket
  • 18mm Socket
  • 19mm Socket
  • 13mm Socket
  • 22mm Socket

  • Wrenches - Metric

  • 24mm Wrench
  • 21mm wrench
  • 22mm Wrench
  • 15mm Wrench
  • 8mm Wrench
  • 18mm Wrench

5.0 / 5.0
3 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
3
0
0
0
0
Perfect fit, great ride.
After calling customer service, I ordered the set of four strut / spring assemblies. Raised my SUV about an inch, and provides a great, smooth ride. Best price, and quality product. I will shop here again.
February 24, 2017
Purchased
1 year ago
Perfect fit and rides great
These strut and spring assemblies are very easy to install and they ride smooth as silk. I highly recommend
November 20, 2017
Purchased
7 months ago
Strut and spring assembly
Direct fit was good and after alignment the truck run good
July 4, 2017
Purchased
8 months ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 2 questions Browse 2 questions and 2 answers
These fit 4x4 models as well as 4x2 models?
Larry B on Apr 2, 2017
BEST ANSWER: Yes, these will fit the 4x4 models, as well as 4x2.
Who is the manufacturer of these?
Claire J on Jul 12, 2016
BEST ANSWER: We have a few different aftermarket companies build these parts specifically for us, as our 1A Auto house brand. They are manufactured to the same OEM specifications as the original part that came with your vehicle. If you have any further questions, please don't hesitate to ask.

How-to Video:

(07:36 min)

Tools List:

    General Tools

  • Jack Stands
  • Hammer
  • Floor Jack

  • Materials, Fluids, and Supplies

  • Rust Penetrant

  • Ratchets & Related

  • Ratchet
  • Torque Wrench
  • Socket Extensions

  • Screwdrivers & Related

  • Pry Bar

  • Sockets - Metric

  • 24mm Socket
  • 21mm Socket
  • 18mm Socket
  • 19mm Socket
  • 13mm Socket
  • 22mm Socket

  • Wrenches - Metric

  • 24mm Wrench
  • 21mm wrench
  • 22mm Wrench
  • 15mm Wrench
  • 8mm Wrench
  • 18mm Wrench



This part replaces:

  • Monroe 171124
  • Monroe 171125
  • KYB SR4137
  • KYB SR4141

Vehicle Fit

  • 2006-2010 Ford Explorer Front & Rear Strut & Spring Assembly 4 Piece Set
  • 2006-2010 Mercury Mountaineer Front & Rear Strut & Spring Assembly 4 Piece Set
Part #: 1ASSP00631

Ships Same Day for orders placed by 4 P.M. ET

We're here to help

1A Auto Parts

Customer Feedback

"Thanks for the fast reliable service. Great price, and the headlights were as good as oem or better!!! Keep up the good work..."
- Dwuan M.
Read More