Strut Assembly
hard DIY~4h jobWritten in plain English and reviewed by the eli5cars editorial team · Last reviewed June 2026
What it does
A strut is a combo part — it's a shock absorber AND a structural suspension member rolled into one. Unlike a standalone shock, the strut actually supports the weight of the car and is the pivot point for steering on most front-wheel-drive cars. The 'strut assembly' (also called a quick-strut) is the whole unit: the strut body, spring, and top mount pre-assembled. When a strut wears out, the hydraulic damping inside breaks down — the car bounces excessively, nose-dives when braking, and often develops a clunking or knocking sound from the worn top mount bearing.
Fix-vs-Skip Money Panel
DIY Cost
~$200
parts only
Shop Cost
~$550
parts + labor
Estimates only — real prices vary by region, vehicle, and shop. Updated 2026.
Buy the part
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So what do I do now?
Three honest paths for fixing strut assembly — pick the one that fits your time, tools, and risk tolerance.
Door 1 — DIY it
We don't have a curated parts/tools list for this repair yet. Based on its hard difficulty rating, this typically needs specialty tools, a lift, or real mechanical experience — most drivers are better off in Door 3.
Door 2 — Buy the part
Already have someone lined up to install it (or handy friend), and just need the part?
Search Strut Assembly on AmazonHeads up: some links below are affiliate links (including Amazon Associates) — if you buy through them we may earn a small commission at no extra cost to you. Details: /disclosure.
Door 3 — Go to a shop
Fair price band
$413–$688
parts + labor, typical US pricing
Ask the shop
- Are the parts OEM or aftermarket?
- Is the diagnostic fee waived if I approve the repair?
- Can I get an itemized estimate before you start?
- What warranty do you offer on the labor?
Frequently asked questions
Do I need an alignment after replacing struts?
Yes, absolutely. Replacing struts changes suspension geometry, and even a small change means the wheels are pointing in a slightly different direction. Skipping the alignment results in rapid tire wear and the car pulling to one side. Budget $80–$120 for an alignment when pricing the job.
What is the difference between a quick-strut and replacing the strut insert?
A quick-strut (complete assembly) comes pre-built with the spring and mount — bolt it on and you're done. A strut insert replaces only the damper inside the existing spring and mount, which requires a spring compressor tool. Quick-struts cost more but save time and tool rental.
Can I replace just one strut, or do I need to do both?
Always replace struts in pairs (both fronts or both rears). A new strut on one side and a worn strut on the other creates uneven handling — the car will lean and pull. The few dollars saved by doing only one side creates a worse problem.
How long do struts last?
Most struts last 50,000–100,000 miles. Signs of failure include excessive bounce, nose-dive under braking, the car sitting lower on one corner, oil streaks on the strut body, and knocking from the top mount area.