Parts for your 2023 Subaru Impreza-Gas struts

2023 Subaru Impreza gas struts: what they do and when to replace them

Referencing Subaru factory service information and the genuine Subaru parts catalogue, gas-pressurised “rear gate stays” are fitted to the 2023 Subaru Impreza hatchback to support the liftgate. The bonnet on this model uses a manual prop rod, and the 2023 Impreza sedan’s boot lid typically uses torsion bars rather than gas struts. So, gas struts are relevant for the hatch’s rear gate on this vehicle.

On the 2023 Impreza hatch, gas struts take the heavy lifting out of raising and holding the rear hatch. Filled with nitrogen and a small amount of oil, they provide smooth, controlled motion and keep the tailgate stable in wind or on uneven ground. Over time, seals age and gas pressure tapers off, especially with lots of hot–cold cycles, dust, or salt air—pretty common across Australia and New Zealand. When they weaken, the hatch may be slow to lift, fail to stay up, or drop suddenly—none of which is ideal when loading the weekly shop or the work gear.

As part of regular servicing, it’s smart to give the rear gate struts a quick once-over: look for oily misting on the shaft, listen for creaks, and check that the hatch rises at a steady, confident pace. If they’re getting tired, replacing them in pairs keeps the lift balanced and ensures the new strut isn’t overworked by an old mate on the other side. Most owners will see 5–10 years of service life depending on climate and usage, but heavy accessories on the hatch (like big spoilers or added trim) can shorten that.

• Signs they’re due: hatch won’t stay up, slows or sags in cold weather, visible oil around the seal, uneven lift from side to side.
• Service tips: always support the hatch with a prop or a helper during replacement