Parts for your 2018 Honda Odyssey-Control arms

2018 Honda Odyssey Control Arms — What They Do and How to Look After Them

Control arms are absolutely used on the 2018 Honda Odyssey. Technical sources including the Honda Service Manual for the 2018 Odyssey (RL6 platform) outline a front MacPherson strut setup with lower control arms and a rear multi-link arrangement with multiple arms. Honda Genuine Parts catalogues for this model also list front lower arms and rear control arms, confirming fitment across the vehicle’s suspension.

On this much-loved people mover, the control arms tie each wheel hub to the chassis while letting the suspension move freely over bumps. They help keep wheel alignment steady (camber and caster up front, plus geometry control at the rear), so the Odyssey tracks straight, steers predictably, and wears its tyres evenly. Bushings in the arms cushion vibration and noise, while ball joints allow the steering knuckle to pivot smoothly.

Over time, bushings can crack, split, or soften, and ball joints can develop play. Aussie and Kiwi roads—potholes, corrugations, and coastal humidity—can speed that up. It’s smart to have the control arms and bushes inspected at regular services or every 20,000–30,000 kilometres, especially if the vehicle tows, carries big family loads, or spends time on rough surfaces.

• Clunks or knocks over bumps
• Wandering, vague steering, or pulling
• Vibration through the wheel, especially when braking
• Uneven or rapid tyre wear
• Visible bushing cracks or torn dust boots

When replacement time comes, quality matters. Many Odysseys are best served by OE or equivalent arms with correctly spec’d bushings and ball joints. Replace side-to-side as a pair if wear is similar. Always torque the pivot bolts at normal ride height to avoid preloading the bushes, and book a full four-wheel alignment afterwards—fresh arms can shift camber and toe. New hardware is often recommended where Honda specifies one-time-use bolts. If the Odyssey lives near the coast or tows frequently, consider preventive bushing refresh earlier in its life to keep tyres wearing cleanly and braking feel consistent.

Pro tip: bundle control-arm checks with tyre rotations and brake services, you’ll spot issues sooner and save on long-term running costs.

FAQs

Does the 2018 Honda Odyssey have rear control arms as well as front?
Yes. The front uses lower control arms as part of its MacPherson strut design, and the rear is a multi-link layout that uses multiple arms to manage wheel alignment and ride comfort. Both ends rely on arm bushings and joints to keep things quiet and precise.

How long do control arm bushings typically last on a 2018 Odyssey?
Many owners see 80,000–160,000 kilometres, but it varies with road conditions, load, and driving style. Frequent corrugations, speed humps, and towing can shorten life. Regular inspections will catch minor bushing wear before it affects tyre wear or braking feel.

Do I need a wheel alignment after replacing control arms?
Absolutely. New arms and bushings can shift alignment settings. A proper four-wheel alignment restores camber and toe, reduces tyre wear, and keeps the Odyssey steering straight and true.