Parts for your 2010 Subaru Forester-Gas struts

2010 Subaru Forester gas struts: what they do and when to replace them

Based on technical references, the 2010 Subaru Forester (SH series, MY09–MY13) is fitted with gas-charged lift struts on the rear tailgate. The Subaru Forester Service Manual for this generation (Body section – Rear Gate) details the “rear gate stay” as a gas-pressurised support, and Subaru parts catalogues list a gas “stay assembly – rear gate” for left and right sides. Major lift-support manufacturers also catalogue application-specific tailgate gas struts for the 2010 Forester. The bonnet on this model uses a prop rod, not gas struts.

On the Forester, the gas struts make the tailgate easy to lift and, more importantly, hold it safely overhead. They control the motion so the gate opens smoothly and doesn’t crash down, especially handy when loading groceries, prams, camping gear, or the dog. Because they’re sealed and gas-charged, they don’t have a set service interval, but their performance does taper off with age, temperature changes, dust, and use.

Typical signs they’re due for replacement include the tailgate sagging or slowly sinking, needing a hand to stay up, jerky or uneven opening, a hiss with little resistance, or an oily film on the strut shaft. If any of that sounds familiar, it’s time to swap them out—ideally as a pair, so lift and hold are even on both sides.

Replacement is a straightforward DIY for most owners: support the tailgate securely with a prop or a helper, flick the retaining clips at the ball sockets with a small flat screwdriver, and pop the old struts off. Fit the new ones in the same orientation (usually rod-down to keep the internal seal lubricated), press them onto the balls until they click, and make sure the clips are fully seated. Avoid greasing the shiny shaft—just keep it clean, grease attracts grit and damages seals.

There’s no need to “service” gas struts, but a quick wipe of the shafts now and then, plus checking they’re dry and free of dents, helps them last. Expect a lifespan of around 5–10 years depending on climate and how often the tailgate’s used. If you’ve added a rear ladder or spare-wheel carrier, consider heavy-duty gas struts rated for the extra weight. Dispose of old struts responsibly—they’re pressurised components and should be recycled according to local guidelines.

• Safety tip: always support the tailgate before removing a strut.
• Fit struts in pairs for balanced lift and hold.
• Choose quality, vehicle-specific replacements for best performance.

Popular questions about 2010 Subaru Forester gas struts

Do 2010 Foresters have gas struts on the bonnet?
No. The bonnet uses a manual prop rod. Gas struts are fitted to the rear tailgate only on this model, as documented in the Subaru service literature and parts listings.

How long do the tailgate gas struts last?
Typically 5–10 years, depending on use and climate. Cold weather, dust, and frequent opening and closing can shorten their life. Replace them when the tailgate won’t stay up or opens unevenly.

Can just one tailgate strut be replaced?
It’s technically possible, but not recommended. Replacing both ensures even support and consistent opening speed, and it prevents overloading an older mate strut.