Mazda 6 Front Suspension Strut: Specs, Fitment & Common Faults
On the Mazda 6, a persistent knock that survived new struts genuinely turned out to be loose crossbar bolts under the windscreen.
Illustration for editorial purposes
Opens live listings in a new tab.
OEM Part Number: GHP934900B (front strut, as quoted in catalogue listings — confirm via VIN) — aftermarket struts Bilstein 22-243003 / KYB 339405
| Front strut / shock absorber (aftermarket) | KYB 339405 (Excel-G twin-tube gas, LH); KYB 339404 (RH); Sachs 317 511 (twin-tube gas, LH); Sachs 317 512 (RH); Bilstein 22-243003 (B4 twin-tube gas, LH); Monroe 72938ST and 72939ST (twin-tube, top pin and bottom clamp); TRW JGM1361T (twin-tube, front axle) |
|---|---|
| Front lower arm / wishbone (aftermarket) | LH Stark SKCA-0051231; RH Stark SKCA-0051443 (steel, 20 mm cone, with ball joint); LH Ridex 273C1230; RH Ridex 273C1442 (with ball joint); LH Maxgear 72-5299; RH Maxgear 72-5300 (with ball joint, rubber mount); Moog MD-WP-13901 and 13902 (with ball joint, front position not stated) |
| Top mount / strut bearing (aftermarket) | Febest MZSS-GHF (top strut bearing); Febest MZB-GJF (82 mm); febi bilstein 171960 (plastic, 109 mm); Maxgear 72-4223 (82 mm); KYB SM1046 (repair kit); GSP 534047S (repair kit) |
| Genuine (OE) numbers quoted | Mazda GHP934900B (LH front strut, Japko MJ33104) |
| Fitment notes | Standard range only |
A Genuinely Money-Saving, Real Diagnostic Tip Worth Trying First — Mazda 6 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 6 Front Suspension Strut: The System That Quietly Does All the Work
On the Mazda 6, every bump, pothole and corner passes through these components before you ever feel it in the cabin, which is exactly why wear here shows up as vague, hard-to-pin-down symptoms rather than one obvious failure. A methodical check usually finds the culprit faster than guesswork.
Mazda 6 Front Suspension Strut: Watch: Replacing It
GJ-generation front shock; alt: h0hPYuwZMDc (strut and spring assemblies 2014-2021)
Mazda 6 Front Suspension Strut: What It Does
The Mazda 6's front suspension strut combines a shock absorber with the coil spring mounting point in one assembly, controlling how quickly the suspension compresses and rebounds over bumps. A worn strut lets the car bounce excessively after a bump instead of settling quickly, and can accelerate uneven tyre wear if left unaddressed.
Opens live listings in a new tab.
Mazda 6 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.