Parts for your 2013 Mazda Cx-9-Gas struts

2013 Mazda CX-9 Gas Struts

Per Mazda workshop documentation and OEM parts catalogues for the first‑generation CX‑9 (2007–2015), the 2013 Mazda CX‑9 is fitted with gas‑charged liftgate (tailgate) support struts. The bonnet on this model is typically held up by a prop rod, not gas struts, so the relevant gas struts on this vehicle are at the rear hatch. That means gas struts are absolutely part of everyday use, and they deserve a spot on the service checklist.

These liftgate gas struts use nitrogen pressure and internal damping to take the weight of the tailgate, helping it rise smoothly and stay put without drooping on someone’s head. On variants with a power tailgate, the electric drive still relies on these struts to counterbalance the mass of the door, tired struts make the motor strain and can lead to slow or incomplete opening.

As the CX‑9 ages, the struts’ seals and gas charge can fade. Tell‑tale signs include a hatch that needs a shove to start, won’t stay up in cooler weather, drops a few centimetres after opening, or shows an oily film on the shaft. If any of that sounds familiar, it’s time to replace them—ideally in pairs—so the lift and hold are even left‑to‑right.

Good practice for servicing a 2013 CX‑9’s gas struts:

• Inspect every service (or ~10,000 km): check for slow lift, sag, leaks, or bent ball studs.
• Keep the chrome shafts clean, wipe with a dry microfibre. Don’t grease or silicone the shafts—it can damage the seals.
• Replace both sides together with the correct length and force rating for the CX‑9. Mismatched struts can twist the tailgate.
• Always support the tailgate when changing struts. Swap one side at a time and confirm each circlip/retainer is fully seated.
• If equipped with a power tailgate, follow the calibration/relearn steps after replacement so the system knows its new effort levels.

Most CX‑9 owners will see 5–10 years from a set, depending on climate, use, and how often the hatch is cycled. Coastal air, heat, and lots of school‑run duty can shorten that. Fresh struts restore that easy one‑handed lift, protect the power mechanism, and keep family and gear safer around the back of the wagon.

Popular questions about 2013 Mazda CX‑9 gas struts

Which panels on a 2013 CX‑9 use gas struts?
The rear liftgate uses a pair of gas‑charged struts from factory. The bonnet is supported by a prop rod rather than struts. Aftermarket bonnet strut kits exist, but they’re not OE on this model year.

How long do CX‑9 liftgate struts last?
Typically 5–10 years. Replace when the hatch sags, opens slowly, or shows oil on the shafts. Always do both sides together so the tailgate loads stay balanced.

Do power tailgates still need gas struts?
Yes. The motor does the driving, but the gas struts counterbalance the weight. Worn struts can make the power tailgate noisy, slow, or stop short. After fitting new struts, follow the vehicle’s relearn/calibration steps if required.