Replaces

Mazda 3 5 Strut & Spring Assembly Passenger Side Front Monroe Quick-Strut 172263 - MNSTS00446

Why Buy Monroe Quick-Strut Assemblies?

Monroe Quick-Strut assemblies are high quality and easy-to-install. Some of its benefits include:

  • Application specific technology
  • Restores factory ride height and feel
  • Quicker installation time than bare strut assemblies
  • Pre-assembled and no compression tool required
    • Includes new mount, bearing, coil spring, isolators, boot, and strut
  • Nitrogen gas charged

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 : Accessing the Strut (0:53)
    • Remove the lug nuts
    • Pull the wheel free
    • Apply penetrating oil to the bolt holding the lower strut and the upper bolt holding the stabilizer link
    • Remove the clip holding the brake hose to the strut (Use a screwdriver to pry up from below)
    • Pull the hose free
    • Lock locking pliers on the backside of the stabilizer shaft
    • Remove the 14mm bolt
    • Spray the 17mm bolt holding the steering knuckle to the strut with penetrating oil
    • Remove the 17mm bolt using the pipe for extra leverage
  2. step : Removing the Strut (3:11)
    • Spray penetrating oil around the bottom of the strut
    • Hit the steering knuckle with a sledge hammer
    • Once the knuckle moves, place a piece of wood over the knuckle and hammer the rest of the way
    • Remove two of the bolts holding the strut from the back of the engine. Loosen the third bolt
    • Push down on the steering knuckle and push the bottom free
    • Remove the third screw up top to free the strut
  3. step : Replacing the Strut (4:29)
    • Line the strut up with the bolt holes up top. Replace the three bolts firm but not fully tightened
    • Spray penetrating oil on the strut and steering knuckle
    • Once its lined up but a jack underneath the knuckle and use it to force it into place
    • Replace the bolt holding the knuckle to the strut. (Use a torque wrench to tighten it to 80 ft/lbs)
    • Bring the hose down and feed it through into place. Replace the clip
    • Reconnect the stabilizer link. Using locking pliers on the back, thread the nut on and tight to 50-60 ft/lbs
    • Replace the wheel
    • Replace lug nuts, and tighten to 100 ft/lbs. in a star pattern
    • Tighten the upper strut bolts to 25ft/lbs

Tools needed for replacement:

    General Tools

  • Sledge Hammer
  • Jack Stands
  • Floor Jack

  • Materials, Fluids, and Supplies

  • Rust Penetrant

  • Pliers, Cutters & misc Wrenches

  • Channel-Lock Pliers

  • Ratchets & Related

  • Torque Wrench
  • Ratchet
  • A Piece of Pipe (for leverage)

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 17mm Socket
  • 14mm Socket
  • 18mm Socket
  • 19mm Socket
  • 15mm Socket
  • 13mm Socket
  • 16mm Socket

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How-to Video:

(07:42 min)

Tools List:

    General Tools

  • Sledge Hammer
  • Jack Stands
  • Floor Jack

  • Materials, Fluids, and Supplies

  • Rust Penetrant

  • Pliers, Cutters & misc Wrenches

  • Channel-Lock Pliers

  • Ratchets & Related

  • Torque Wrench
  • Ratchet
  • A Piece of Pipe (for leverage)

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 17mm Socket
  • 14mm Socket
  • 18mm Socket
  • 19mm Socket
  • 15mm Socket
  • 13mm Socket
  • 16mm Socket



This part replaces:

  • Monroe Quick-Strut 172263

Vehicle Fit

  • 2004-2013 Mazda 3 Front Strut & Spring Assembly Passenger Side excluding Speed Model Monroe Quick-Strut 172263
  • 2006-2010 Mazda 5 Front Strut & Spring Assembly Passenger Side Monroe Quick-Strut 172263
Only 2 left in stock
Part #: MNSTS00446

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

Monroe Quick-Strut
Brand #: 172263

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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.
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