Parts for your 2021 Subaru Xv-Gas struts

2021 Subaru XV gas struts — what they do and when to replace them

Technical sources confirm the 2021 Subaru XV is fitted with gas-charged struts on the rear hatch. Subaru’s service information (Body: Rear Gate – Stay), the OEM parts catalogue (Rear Gate/Liftgate Stay Assembly, gas-charged), and the owner’s manual references to the “rear gate stay” all point to factory lift supports on the tailgate. The bonnet on most trims uses a prop rod rather than gas struts, so the relevant gas struts for this model are at the rear hatch.

On the XV, gas struts counterbalance the weight of the tailgate so it lifts smoothly and stays put without a fight. They’re nitrogen-charged dampers that provide controlled motion up and down, reduce slam, and keep the hatch securely open while loading the weekly shop, surf gear, or the dog.

Over time, seals harden and pressure drops, especially with heat, cold, and dust. Tell-tales include a hatch that sags, needs a shove to open, won’t stay up on cooler mornings, or shows a light oil mist on the rod. That’s the cue to replace them—ideally as a matched pair—so the load is even and the hatch works as designed.

As part of regular servicing, it’s smart to:

• Wipe the strut rods with a clean microfibre cloth, keep grit off the seals.
• Avoid lubricants on the chrome rods—oil attracts dust and can damage the seals.
• Check opening force and hold at full lift, note any temperature sensitivity.
• Inspect ball studs and clips for corrosion or play.

Replacement is straightforward with basic tools, but the hatch is heavy—support it with a prop or a helper. Pop the retaining clips at the socket ends, swap struts one side at a time, and ensure each clip fully seats on the ball stud. Don’t force a partially clipped socket, that’s how mounts get bent.

There’s no hard expiry date, but many XVs will need new rear struts around the 5–10 year mark depending on climate and use. Frequent tailgate cycling, roof racks with rear-mounted accessories, and coastal conditions can shorten life. Choosing quality, model-specific struts keeps the lift height and closing effort right, which helps the latch and hinges go the distance.

Popular questions about 2021 Subaru XV gas struts

Do all 2021 Subaru XVs have rear gas struts from factory?
Yes. Technical documentation and the OEM parts catalogue list gas-charged rear gate stays on the 2021 XV. The bonnet generally uses a prop rod, but the rear hatch uses gas struts across the range.

How long do the rear gas struts typically last?
Many last 5–10 years, but lifespan varies with climate and use. If the hatch won’t stay up, drops in cold weather, or shows oily residue on the rods, it’s time to replace them—preferably as a pair.

Can they be replaced at home?
Yes, with care. Support the hatch safely, then swap one strut at a time by releasing the retaining clips and snapping the new unit onto the existing ball studs. If the studs are corroded or loose, renew them too. When in doubt, have a workshop handle it.