Parts for your 2020 Mazda Cx-5-Gas struts

2020 Mazda CX-5 Gas Struts — What They Do and When to Replace Them

Yes, gas struts are used on the 2020 Mazda CX-5. Technical documentation including the Mazda CX-5 Workshop Manual (KF series, 2017–2021) under Body/Liftgate “Liftgate Stay Damper,” the 2020 CX-5 Owner’s Manual section on the back door/tailgate, and Mazda’s Electronic Parts Catalogue for the KF liftgate stay damper all confirm gas-charged struts are fitted to the rear tailgate. Note: the bonnet on this model uses a prop rod from factory, not gas struts.

On the CX-5, the tailgate gas struts do the heavy lifting. They counterbalance the door, help it rise smoothly, and hold it open so there’s no head-bonking when loading the weekly shop or the pram. On grades with a power tailgate, the motorised actuator still relies on gas struts to support the weight and manage the motion, so their condition matters across all trims.

Over time, seals wear and the pressurised gas leaks away. Common signs they’re on the way out include the tailgate dropping or not staying up, slower or jerky movement (especially on cold mornings), squeaks at the ball joints, or an oily film around the rod. If any of that shows up, it’s time to replace—ideally in pairs to keep the lift balanced. A quick inspection every service (around each 10,000 km or 12 months) keeps surprises at bay.

Replacement is straightforward, but safety first. Support the tailgate with a prop or a helper. Pop the retaining clips at each end, slip the old strut off the ball studs, then click the new one on and ensure the clips seat fully. For power tailgates, follow the owner’s manual procedure to recalibrate or initialise after fitting. Always tighten fasteners to the workshop manual’s specified torque.

• Do: keep the piston rods clean and dry, a light wipe with a silicone-safe cloth is fine.
• Don’t: grease the rods or compress struts by hand—contamination or damage can ruin the seals.
• Check: ball studs and clips for wear, replace any that look tired.

Look after the gas struts and the CX-5’s tailgate will open smoothly, hold firm in a southerly, and close without a fuss—just how it should be.

Popular questions about 2020 Mazda CX-5 gas struts

How long do CX-5 gas struts typically last?
Most owners see 5–8 years, depending on climate and use. Lots of tailgate cycles, exposure to heat and UV, and carrying weight on the tailgate can shorten their life. If the hatch won’t stay up or feels heavy, plan a replacement rather than waiting for a surprise drop.

Are power tailgate models different for struts?
Power tailgate CX-5s still use gas struts, but part numbers and forces can differ from manual-lift versions. Always match the strut to the VIN or trim. After replacement, complete the power tailgate initialisation so the control unit learns the new travel and effort.

Does the 2020 CX-5 have bonnet gas struts?
No. The bonnet uses a prop rod from factory. Aftermarket bonnet strut kits exist, but ensure they’re engineered for the KF platform and don’t foul on hinges or panels. Fitting quality hardware is essential to avoid misalignment or damage.