Mazda 3 Front Suspension Strut: Specs, Fitment & Common Faults
On the Mazda 3, a persistent knock that survived new struts genuinely turned out to be loose crossbar bolts under the windscreen.
Illustration for editorial purposes
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OEM Part Number: confirm via VIN — front struts (aftermarket) Bilstein 22-240200 / Sachs 317 624
| Front strut / shock absorber (aftermarket) | Bilstein 22-240200 (B4 twin-tube gas, LH); Bilstein 22-240217 (RH); Sachs 317 624 (twin-tube gas, LH); Sachs 317 625 (RH); Monroe G8369 and G8370 (strut, top pin and bottom clamp, side not stated); Bilstein 35-240167 (LH) and 35-240174 (RH) (B8 Performance Plus upside-down monotube) |
|---|---|
| Front lower arm / wishbone (aftermarket) | LH Delphi TC3458; RH Delphi TC3459 (with ball joint); LH Mapco 54573; RH Mapco 54574 (with ball joint); LH Sidem 51678; RH Sidem 51679 (with ball joint); LH Ridex 273C2025 |
| Top mount / strut bearing (aftermarket) | Mapco 36531 (82 mm, pair); febi bilstein 171960; Blue Print ADBP800073; Maxgear 72-4223 (82 mm); KYB SM1046 (repair kit); GSP 534047S (repair kit) |
| Genuine (OE) numbers quoted | None quoted in catalogue listings — order genuine parts against your VIN |
| Fitment notes | Standard twin-tube range plus a Bilstein B8 sport-oriented option |
A Genuinely Money-Saving, Real Diagnostic Tip Worth Trying First — Mazda 3 Front Suspension
If you're hearing a sporadic knock from the front, particularly at low speeds over bumps, this is genuinely worth checking: one documented case on a related model saw two mechanics unable to track down a persistent knock despite replacing control arms, ball joints, bushings, and struts, before discovering the actual cause was simply loose bolts on the crossbar located under the windscreen, near the strut mount bolts.
It's also worth knowing about a confirmed technical bulletin addressing rattling front suspension noise on related Mazda models built in 2019 and early 2020 — though it's worth knowing even applying this bulletin hasn't fully resolved the issue in every documented case.
Mazda 3 Front Suspension Strut: The System That Quietly Does All the Work
On the Mazda 3, these components absorb every pothole, bump and cornering force before any of it reaches the cabin, which is why deterioration here rarely announces itself with one obvious symptom. Working through it methodically finds the actual cause faster than guessing ever will.
Mazda 3 Front Suspension Strut: Watch: Replacing It
BM-generation quick-strut swap
Mazda 3 Front Suspension Strut: What It Does
The Mazda 3's front strut does two jobs in one unit — damping the suspension's movement and providing the coil spring's mounting point. Wear here shows up as excessive bounce after bumps rather than a quick settle, and left long enough, uneven tyre wear tends to follow.
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Mazda 3 Front Suspension Strut: Warning Signs, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Front Suspension Strut Guide for symptoms of worn bushings and ball joints, confirming fitment against your VIN, and rubber vs polyurethane guidance.
More Mazda Front Suspension Strut
The same part, covered across other Mazda models.