Parts for your 2003 Mazda Premacy-Gas struts

2003 Mazda Premacy gas struts

Gas struts are fitted to the tailgate (back door) of the 2003 Mazda Premacy (CP series). This is confirmed by Mazda’s Electronic Parts Catalogue listings for the “Back Door Stay (gas-filled)” and the Mazda Premacy CP Workshop Manual in the Body – Back Door/Liftgate section, which details removal/installation of the lift support stays. Major strut manufacturers’ catalogues for 1999–2005 Premacy (e.g., Stabilus and Monroe) also list direct-replacement tailgate gas struts. The bonnet on most CP Premacy models uses a manual prop rod rather than gas struts.

On this model, the gas struts do the heavy lifting—literally. They counterbalance the weight of the tailgate so it lifts smoothly, stays up confidently, and doesn’t slam down in a gust of Wellington wind. Good struts make loading the pram, the esky, or the weekly shop feel lighter and safer, while also reducing stress on hinges and body mounts.

As part of routine servicing, it’s smart to check how the tailgate behaves. If it doesn’t rise cleanly, needs a helping hand to stay up, or sags in cold weather, the gas charge is likely fading. A light film of oil on the rod is normal for lubrication, but wet, oily leakage from the cylinder is a red flag. Any bent rod, cracked end fitting, or loose bracket needs attention pronto.

• Common signs they’re due: tailgate drops or won’t hold, slow or jerky opening, hissing and visible oil leaks, uneven lifting.
• Typical lifespan: 5–10 years depending on climate and usage, colder temps expose weak struts sooner.

Maintenance is simple: keep the chrome rods clean and dry, and never grease or paint them—contamination can ruin the seals. Don’t use the tailgate as a handle to pull the car closed by yanking on the strut, and avoid slamming the door shut. If replacement’s needed, do both sides together for balanced support. Support the tailgate safely, pop the spring clips, swap the struts, and refit clips, install with the rod down where applicable to keep the internal seal lubricated.

A fresh pair restores easy one-hand operation and proper hold-open height, making day-to-day use of the Premacy feel newer again. While you’re there, inspect the hinge bolts and tailgate wiring grommet—two-minute checks that prevent bigger headaches later.

Popular questions

How long do tailgate gas struts last on a 2003 Mazda Premacy?
In Aussie and NZ conditions, owners typically see 5–10 years. Heat, UV, dust, and frequent use shorten life. If the tailgate won’t stay up or struggles in cold mornings, they’re ready for replacement.

Should both gas struts be replaced at the same time?
Yes. Replacing in pairs keeps lift and hold balanced, prevents twisting the tailgate, and ensures consistent opening speed. Mixing old and new can feel wonky and stresses mounts.

Can gas struts be re-gassed, or is full replacement better?
For most Premacy units, replacement is the practical choice. Re-gassing is uncommon, and by the time pressure is down, internal wear usually means a new matched pair is the reliable fix.