Parts for your 2010 Mazda Cx-9-Strut mounts

2010 Mazda CX-9 Strut Mounts — What They Do and When to Replace

Yes, strut mounts are fitted to the 2010 Mazda CX-9. Technical references including the Mazda Workshop Manual (front suspension section), Mazda’s Electronic Parts Catalogue, and common aftermarket catalogues from KYB and Monroe all specify a MacPherson strut front suspension on the CX-9 with a top mount/insulator and integrated bearing. The rear is a multi-link layout with separate shocks, so “strut mounts” apply to the front only.

On the CX-9, the front strut mount sits at the very top of the MacPherson strut assembly. Its job is twofold: isolate vibration and road harshness from the cabin, and provide a smooth pivot point for steering via the built-in bearing. That bearing lets the strut and spring turn freely with the steering, while the rubber insulator absorbs the thumps and bumps a big seven-seater inevitably encounters. When healthy, owners get a quieter ride, cleaner steering feel, and consistent tyre contact.

Given the CX-9’s weight and duty (family hauling, towing, long trips), the mounts work hard. Over time the rubber can crack or collapse, and the bearing may dry out or bind. Telltales include:

• Clunks, creaks or a knock over speed humps and driveway entries
• Notchy or heavy steering, or poor steering return to centre
• Uneven tyre wear, vague turn-in, or a “twang” when turning at low speed
• Visible cracking or separation in the top insulator

As part of routine servicing, it’s smart to inspect the strut mounts whenever front struts, springs, or upper bearings are checked—typically around 80,000–100,000 km, or sooner if symptoms show up. Because the bearing and rubber work together, many workshops fit new mounts whenever front struts are replaced. Replacing in pairs keeps steering and ride balanced side to side.

When fitting new mounts, quality matters. Choose OEM-equivalent mounts with an integrated bearing. Replace associated hardware (top nut, mount nuts) if specified single-use by the manual, and torque everything with the suspension at normal ride height. Always book a wheel alignment after strut or mount work—camber and caster can shift as things settle. A quick recheck of fasteners after a few hundred kilometres is good practice, especially if the vehicle tows or sees rough roads. Look after the mounts and the CX-9 will feel tighter, steer cleaner, and treat tyres more kindly.

Do all 2010 Mazda CX-9s have strut mounts?

Yes, at the front. The 2010 CX-9 uses a MacPherson strut front end, which requires a top strut mount with an integrated bearing. The rear suspension is multi-link with separate shocks, so there’s no rear “strut mount” in the same sense.

How long do CX-9 strut mounts typically last?

It varies with roads and load, but many last 80,000–150,000 km. Heavy use, rough surfaces, and ageing rubber can bring that forward. Noise over bumps, notchy steering, or uneven tyre wear are the cues to check them sooner.

Should the strut mounts be replaced with the front struts?

Often, yes. Because the bearing and insulator age alongside the strut, replacing mounts when fitting new struts helps avoid repeat labour and restores steering feel. Always finish with a wheel alignment.