Parts for your 2019 Mazda Cx-5-Gas struts

2019 Mazda CX-5 Gas Struts – What They Do and When to Replace

Gas struts are fitted to the 2019 Mazda CX-5. Mazda’s workshop manual for the KF-series CX-5 (2017–2021) specifies “Liftgate Stay Dampers” and details their removal and installation, and Mazda’s electronic parts catalogue lists gas-charged stay dampers for the 2019 model, including variants with the power tailgate. The bonnet on most trims uses a prop rod from factory, but the rear tailgate relies on gas struts to support and control its movement.

On this CX-5, the gas struts take the weight of the tailgate, balance it through the arc of travel, and smooth out opening and closing. They prevent the tailgate from dropping on a windy day and stop it slamming shut, which protects hinges, latches and the tailgate panel. Even power tailgate versions use gas-charged dampers in tandem with the electric actuator to manage load and speed.

As part of routine servicing, gas struts deserve a quick check. They are sealed units, so the job is inspection rather than adjustment. Over time the internal nitrogen charge and oil can lose effectiveness, especially with heat, coastal air and frequent use common across Australia and New Zealand. When they weaken, the tailgate may feel heavy, pause mid-lift, or slowly sink when parked on a slope.

• Typical signs they’re due: the tailgate won’t stay up, needs a hand to lift, moves unevenly, or shows an oily film on the shaft.
• Good practice: replace in pairs to keep lift balanced and to avoid uneven loading on hinges and latches.
• Keep the chrome shafts clean, wipe with a soft cloth. Don’t grease the shafts—lubricants attract grit and can damage the seals.

Replacement is straightforward with the right care. Support the tailgate safely (a second person or a prop is a must), then pop the retaining clips at each end of the old strut and swap to the new units. Confirm the ball studs are tight and the clips are fully seated before removing the support. For power tailgate models, follow the workshop procedure for reinitialising open height if specified.

There’s no fixed interval, but many owners see 5–8 years of reliable service. If one strut has failed, the other is usually close behind. Because struts are pressurised, never heat, crush or puncture them, dispose of old units according to local regulations.

Does the 2019 Mazda CX-5 have gas struts on the tailgate?

Yes. All 2019 CX-5 models use gas-charged stay dampers on the rear tailgate. Power tailgate variants pair these struts with an electric actuator. The bonnet generally uses a prop rod rather than gas struts from factory.

How long do CX-5 tailgate gas struts last?

Service life commonly ranges from about 5 to 8 years, depending on climate and usage. Heat, coastal conditions and frequent tailgate use can shorten life. If the tailgate won’t hold up, needs assistance to lift, or leaves an oil mist on the shafts, replacement is due.

Can CX-5 gas struts be replaced at home?

They can, provided the tailgate is supported and care is taken. Swapping struts usually involves releasing the spring clips, removing the old units and clipping on the new pair. A helper is recommended, and power tailgate models may require a height reset after fitment.