Parts for your 2018 Ford Focus-Gas struts

2018 Ford Focus gas struts — what they do and when to replace them

Based on technical sources such as the Ford Workshop Manual (Body Closures, Section 501‑03) and OEM parts catalogues for the 2011–2018 Focus platform, gas‑charged lift supports are factory‑fitted to the rear liftgate on 2018 Ford Focus hatch and wagon models. The bonnet is supported by a prop rod rather than gas struts, and most sedan (boot) variants use torsion bars instead of gas struts. So, gas struts are relevant on the 2018 Focus where there’s a liftgate/tailgate to hold up.

On the hatch and wagon, the gas struts counterbalance the weight of the tailgate, making opening smooth and holding it securely overhead. They’re sealed, nitrogen‑charged units with a damped stroke, designed to work consistently in everyday Aussie and Kiwi conditions, even when the weather turns cold or the car’s parked on a slope.

There’s no fixed service interval for these struts, lifespan depends on use and environment. Owners typically see 5–8 years before performance tails off. When pressure drops, the tailgate may feel heavy, lift slowly, or fail to stay up—especially noticeable on chilly mornings.

• Common signs it’s time to replace:
  • Tailgate sags or won’t hold itself up
  • Needing an extra shove to get it fully open
  • Oily film on the strut body or visible damage
  • Inconsistent or jerky movement, worse in cold weather

Best practice is to replace gas struts in pairs so the lift and hold are balanced. During service, it’s smart to inspect the ball studs and brackets for play or corrosion and to confirm the new struts match the original force rating and length for the Focus tailgate. A temporary prop should always support the liftgate during removal and installation.

Maintenance is minimal: keep the chrome rod clean and dry, don’t paint or lubricate the rod, and avoid using the strut as a handle. Gas struts on this model are sealed and not designed to be re‑gassed, when they’re tired, replacement is the reliable fix. Choosing quality, vehicle‑specific units restores that easy one‑handed lift and steady overhead hold the Focus is meant to have.

Popular questions about 2018 Ford Focus gas struts

Do all 2018 Ford Focus models have gas struts?
Hatch and wagon variants use gas struts on the rear liftgate. The bonnet uses a prop rod, and most sedans use torsion bars on the boot rather than gas struts. Body style determines where gas struts are fitted from factory.

Should gas struts be replaced in pairs?
Yes. Pair replacement keeps lift and damping even on both sides, preventing twist and ensuring the tailgate opens and holds as designed. Mixing an old strut with a new one can cause uneven operation and shorten service life.

Can worn Focus gas struts be re‑gassed?
They’re sealed units, so re‑gassing isn’t a practical or reliable option. Once performance drops, fitting new, correct‑spec struts is the dependable remedy.