Parts for your 2018 Honda Civic-Strut mounts

2018 Honda Civic strut-mounts — what they do and when to replace them

Technical sources including the Honda Civic (2016–2021) Service Manual, Honda’s OEM parts catalogue, and common repair databases confirm the 2018 Honda Civic uses a MacPherson strut front suspension with dedicated front strut-mounts and a built-in bearing. The rear is a multi-link setup with separate shock absorbers, so there are no rear strut-mounts.

On the front of a 2018 Civic, the strut-mounts have a big job. They secure the top of the strut to the body under the bonnet, cushion road harshness, and let the strut rotate smoothly as the wheels steer thanks to an integrated bearing. Good mounts keep steering light and precise, cut down on vibration and cabin noise, and help tyres wear evenly over the kilometres.

They’re not a regular “service item” like oil or filters, but they do wear. Aussie and Kiwi roads—potholes, corrugations, and plenty of stop–start—can speed that up. Typical signs it’s time to look at the front strut-mounts include:

• Clunks, creaks, or knocks over bumps
• Notchy or heavy steering, especially at parking speeds
• Vague handling, tramlining, or a steering wheel that doesn’t self-centre well
• Uneven or rapid front tyre wear
• Visible rubber cracking, separation around the mount, or rusted/loose studs

Best practice is to inspect the mounts whenever front struts, springs, or top hats are out—if the struts are being replaced, fitting new strut-mounts at the same time saves labour and helps the fresh dampers work at their best. Always replace in axle pairs for balanced feel left-to-right. Use OE or reputable aftermarket mounts with the correct bearing, a cheap bearing can add steering noise or bind up quickly.

After any front suspension work, book a wheel alignment to keep the Civic tracking true and protect those tyres. Pay attention to correct orientation marks on the mount during install, torque everything to factory spec, and don’t forget new hardware where specified. Because the coil spring is under serious tension, this is a job for proper spring compressors and sound workshop practice—if that gear’s not on hand, leave it to a qualified tech.

Look after the front strut-mounts, and the 2018 Civic will reward with a quieter ride, sharper steering feel, and more confident road manners day in, day out.

Do both front strut-mounts need replacing together on a 2018 Honda Civic?

Yes—doing them in pairs is the smart move. Left and right mounts age at a similar rate, so replacing both keeps steering feel consistent and prevents chasing noises from the other side a few weeks later.

It’s also efficient: if the struts are already out, fitting both mounts avoids doubling up on labour down the track.

How long do front strut-mounts typically last on a 2018 Civic?

Many last 80,000–150,000 km, but life varies with roads, loads, climate, and driving style. Frequent rough surfaces, speed humps, and coastal exposure can shorten that window.

If the steering goes notchy or new tyres wear oddly, get the mounts checked during a suspension inspection.

Can worn strut-mounts cause steering noise or uneven tyre wear?

They can. A tired mount or bearing often creaks or clunks when turning or hitting bumps, and excess play can upset alignment angles under load.

Left alone, that adds noise, vague steering, and scalloped tyre wear—another reason to sort mounts promptly and align the front end afterwards.