Parts for your 2023 Toyota Aqua-Gas struts

2023 Toyota Aqua gas-struts: what they do and when to replace them

Based on Toyota’s technical publications, gas-struts are indeed used on the 2023 Toyota Aqua. The Toyota Repair Manual for the Aqua/NHP210 series (2021–) in the Body – Back Door section details the “Back Door Stay” components, and the Toyota Electronic Parts Catalogue (EPC) lists “Back Door Stay Sub-Assembly (LH/RH)” for this model. These sources confirm gas-struts are fitted to the rear hatch. The bonnet on the Aqua is supported by a prop rod rather than gas-struts, which is also evident in the same manual’s Engine Hood/Bonnet section.

On the Aqua, the rear hatch gas-struts (also called tailgate or back door stays) take the weight of the tailgate and control its movement so it lifts smoothly and stays put without slamming or drifting. They’re sealed, gas-filled dampers that deliver consistent support in everyday use, whether loading the weekly shop or accessing the boot at the beach car park. When they weaken, the hatch can sag, shut unexpectedly, or feel heavy to lift, which is both annoying and unsafe.

As part of routine servicing, it’s wise to give the gas-struts a quick check: look for oily residue on the shaft or body, listen for creaks, and test holding force on a mild day (extreme cold can make even good struts feel weaker). Coastal exposure and frequent use can shorten service life, but many owners see 5–10 years from quality OE-equivalent units.

Replacement is straightforward but should be done with care. Always support the tailgate securely (a helper or a prop), then pop the retaining clips and swap the struts—left and right—together to keep lift and balance even. Refit clips fully and ensure the ball-studs and brackets are tight to manufacturer torque specs from the Toyota Repair Manual. Choosing reputable OE or OE-equivalent parts matched to the Aqua’s spec avoids issues like excessive opening speed or poor hold-up in colder climates.

Maintenance is minimal: keep the chrome shafts clean and dry, wipe with a lint-free cloth, and avoid lubricants or silicone sprays on the shafts (they can damage seals). Don’t use the strut body as a handle, open and close using the tailgate’s handle to prevent side-loads. If the hatch won’t stay up, treat it as a safety item—replace promptly to avoid injury or damage.

• Signs they’re due: hatch drops or drifts, visible oil film, slow/jerky motion, needing two hands to lift.
• Good practice: replace in pairs, support the hatch, and use correct-grade struts for the Aqua.

Does the 2023 Toyota Aqua have gas-struts on the bonnet?

No. The bonnet uses a prop rod. Gas-struts are fitted to the rear hatch (back door) only, as shown in Toyota’s Repair Manual and the EPC for the NHP210 Aqua.

How often should the Aqua’s rear hatch gas-struts be replaced?

There’s no fixed interval. Replace when holding force drops, there’s oil seepage, or the hatch feels heavy or won’t stay up. In typical New Zealand and Australian conditions, quality struts often last 5–10 years, but coastal exposure and frequent cycling can shorten that.

Can an owner replace the gas-struts at home?

Yes, it’s a simple clip-on job if the hatch is safely supported. Replace in pairs, avoid touching the shaft with greasy hands, and ensure brackets/ball-studs are secure. If unsure about torque specs or alignment, a workshop can sort it quickly during a service.