Parts for your 2018 Honda Civic-Rack boots

2018 Honda Civic rack boots — what they do and how to look after them

Rack boots are absolutely used on the 2018 Honda Civic. Honda’s factory Service Manual for the 10th‑gen Civic (2016–2019) depicts bellows‑type boots on each end of the electric rack‑and‑pinion steering gear, and Honda’s Electronic Parts Catalogue lists a “Boot Set, Steering Gear” for these models. Major aftermarket catalogues also supply rack and pinion bellows kits specific to the 2018 Civic, covering sedan, hatch and Type R variants. So this part is relevant and fitted from factory.

On the Civic, the rack boots are flexible rubber bellows that seal the inner tie rods and rack ends from dust, water and road grime, while keeping grease where it belongs. Even with electric power steering (no hydraulic fluid), those boots are critical, once a boot splits, moisture and grit can chew out the inner tie rod and the rack’s end seals, risking heavy steering, play and expensive rack damage.

For routine servicing in Australia and New Zealand, a quick visual check of the rack boots is a smart move at every service. Look for perishing, cracks, oil or grease weeping, or loose clamps. After a pothole strike, flood run, gravel road trip or beach visit, an extra glance doesn’t hurt. If a boot is torn, prompt replacement helps avoid corrosion inside the rack.

• Common signs of trouble: split bellows, wet or oily residue on the boot, knocking over bumps, vague or notchy steering, or uneven tyre wear. These can trigger a WOF/roadworthy fail.
• Best practice on replacement: use quality OE‑spec EPDM boots, always fit new clamps, and ensure the boot isn’t twisted so it can breathe as the rack moves.
• Alignment note: replacing a boot usually means disturbing the outer tie rod, a wheel alignment is recommended straight after.

Technicians will often check the inner tie rods for play at the same time, if they’re worn, it’s efficient to sort them while the boot is off. There’s no fluid to flush on the Civic’s EPS system, but clean assembly and correct clamp positioning are key to keeping water out. Replacing the boots when they first show age is inexpensive insurance compared with the cost of a complete electric steering rack.

Popular questions about 2018 Honda Civic rack boots

Do all 2018 Honda Civics have rack boots, even with electric power steering?

Yes. Regardless of trim (sedan, hatch, or Type R), the 2018 Civic uses an electric rack‑and‑pinion steering gear that includes bellows‑type rack boots on both ends. Honda’s service literature and parts catalogue list these boots as standard components.

How often should rack boots be replaced on a 2018 Civic?

There’s no fixed kilometre interval. They should be inspected at every service and replaced if cracked, torn, oily, or if clamps are loose. Early replacement protects the inner tie rods and the rack itself, and helps avoid a WOF/roadworthy issue.

Will changing a rack boot affect wheel alignment?

Usually, yes. Accessing the boot often involves removing or loosening the outer tie rod, which can alter toe settings. A proper wheel alignment straight after the job is the safe bet to keep the Civic tracking straight and tyres wearing evenly.