KYB
KYB Coil Spring Insulator SM5823
KYB Coil Spring Insulator SM5823
Part number: 3QS4A
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- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
KYB Coil Spring Insulator SM5823. Lowering springs drop the car a fixed amount and work with your existing shocks. The fitment section lists 11 applications.
Specifications
- Brand: KYB
- Part type: Spring set
Fitment
- 2010 - 2012 Ford Fusion Hybrid, Sport
- 2006 - 2012 Ford Fusion S, SE, SEL
- 2006 - 2009 Ford Fusion SEL Plus
- 2007 - 2012 Lincoln MKZ Base
- 2011 - 2012 Lincoln MKZ Hybrid
- 2006 Lincoln Zephyr Base, Premium
- 2008 Mazda 6 GT, GS
- 2006 - 2007 Mazda 6 Mazdaspeed
- 2004 - 2008 Mazda 6 S, i
- 2010 - 2011 Mercury Milan Hybrid
- 2006 - 2011 Mercury Milan Premier, Base
What it does
Springs hold the car up and set its ride height. Worn suspension and steering parts show up as clunks, wandering, uneven tire wear and a vague feel; fresh parts restore control, and performance parts sharpen it.
Installation & tips
- Use shocks in good condition with new springs and get an alignment after.
- Shocks: Springs work best with healthy dampers.
- Alignment: Ride height changes alignment.
- This part affects how the vehicle stops, steers or holds the road. If you are not sure how to fit it, have it installed or checked by a qualified mechanic.
FAQ
How many vehicles is it listed for?
11 applications are listed in the fitment section above.
Can I install it myself?
Many owners do this job at home with the right tools and a service manual, but because it is a safety-related part, have the work checked by a qualified mechanic if you are not sure.
What should I check before ordering?
Compare the part number, specifications and fitment on this page with your vehicle and with the part you are replacing.
Before you order
- Measure the part you are replacing and compare it with the specifications above.
- Plan for a wheel alignment after fitting if the job changes the suspension or steering geometry.

KYB springs: what to know
Lowering springs drop the car a fixed amount and work with your existing shocks.
Fitment notes
- Specs, lead time and warranty come from KYB and can change. The details above this guide are the latest we have.
Not sure it fits? Send us your year, make, model, engine and trim and we'll check before you order.
Ask about fitmentWhat else to plan for
More for your car: POPULAR PRODUCTS · Suspension & steering
Questions about springs
Will this fit my car?
Do I need new shocks?
Where do specs and warranty details come from?
Questions & answers
No questions yet about this part. Ask about fitment, what's in the box or installation and we'll answer here.