Parts for your 2009 Toyota Hiace-Gas struts

2009 Toyota Hiace Gas Struts — What They Do and When to Replace Them

Technical sources confirm gas struts are relevant to the 2009 Toyota Hiace, but only on vehicles fitted with the lift-up back door (tailgate). The Toyota Electronic Parts Catalogue (H200 series, 2004–2019) lists a “Back Door Stay (Gas Spring)” for tailgate-equipped Hiace models. The Toyota Repair Manual for the H200 Hiace includes removal and installation of the back door stay. Major OE suppliers’ application guides (e.g., Stabilus/LIFT-O-MAT, Monroe Max-Lift) also catalogue gas springs for the H200 Hiace tailgate. Models with twin swing-out rear doors do not use gas struts, and the Hiace’s bonnet/service flap and sliding doors are supported by mechanical hinges, latches and rollers rather than gas springs.

On a 2009 Hiace with a lift-up tailgate, the gas struts do the heavy lifting—assisting the door to rise smoothly and holding it safely open so there’s no surprise drop on a windy day. Over time the internal nitrogen charge and seals can lose oomph, especially after years of loadings, temperature swings, and dust common to Aussie and Kiwi work vans.

Good practice is to inspect the tailgate struts during routine servicing. Look for slow or hesitant lift, the need to “shoulder” the door up, dropping in cold weather, oily film on the shaft, or any binding. If one has gone weak, replace them as a pair so the tailgate stays balanced and opens with the right force.

• Safety first: always support the tailgate with a prop or a helper before popping clips.
• Replace in pairs and check the ball studs/brackets for wear or corrosion.
• Don’t heat, puncture, or clamp on the chrome shaft—fit by the cylinder body and follow manufacturer torque specs for mounts.
• Choose the correct force and length specified for the H200 Hiace tailgate, generic “near enough” struts can slam or fail to hold.

There isn’t much “maintenance” beyond periodic cleaning of the exposed shaft with a soft cloth and keeping grime away from the seals. When performance fades, replacement is the fix—re-gassing isn’t typically recommended for sealed automotive units. Quality OE-equivalent struts restore smooth, predictable operation and reduce strain on hinges and the door shell. For Hiace vans with rear swing-out doors, gas struts aren’t fitted because those doors are side-hinged and self-supported, so there’s nothing to service on that front.

Popular questions

Does every 2009 Hiace have gas struts?
Not every one. Tailgate (lift-up back door) versions have two gas struts. Vans with twin swing-out rear doors don’t. The bonnet/service flap and sliding doors don’t use gas struts either.

How long do Hiace tailgate struts last?
It varies with use and climate, but many last 5–10 years. Heavy use, hot summers, and dust can shorten life. Replace when the door won’t stay up, lifts slowly, or needs a hand in cooler weather.

Can Hiace gas struts be re-gassed?
Most automotive gas springs are sealed units. Re-gassing isn’t standard practice, replacing with the correct-spec struts is the reliable, cost-effective option.