Parts for your 2010 Subaru Impreza-Gas struts

2010 Subaru Impreza gas struts — what they do and when to replace

For the 2010 Subaru Impreza, gas struts are relevant and factory-fitted to the hatchback’s tailgate (GH/GR). The sedan’s boot uses torsion rods rather than gas struts, and the bonnet is supported by a prop rod, not gas struts. This layout is confirmed across Subaru service literature for the GE/GH/GR/GV generation (Body/Rear Gate sections), Subaru parts catalogues (EPC/FAST listings for lift supports on hatch variants), and common application guides from gas-spring manufacturers such as Stabilus (LIFT-O-MAT) and Monroe/StrongArm for 2008–2011 Impreza hatchbacks.

On the hatch, the gas struts counterbalance the weight of the tailgate so it lifts smoothly, stays up securely, and closes without a thud. They’re sealed, nitrogen-charged dampers designed to work in a wide temperature range, providing controlled motion and reducing stress on hinges and the body shell. When healthy, they’ll hold the gate open without hesitation, even on a windy day.

Like any gas spring, they lose charge over time. Telltales include the tailgate drifting down, a chattering or stick–slip feel near the top, oily misting around the shaft seal, and worse performance in cold weather. If anyone has to “shoulder” the hatch to keep it up, the struts are due.

Replacement is straightforward with the right approach. Support the tailgate with a prop before starting. Swap struts one at a time and, ideally, in pairs so lift and damping stay balanced. Use a small flat-blade to pop the metal retaining clips on the ball sockets—no need to fully remove the clip. Avoid locking pliers on the chrome shaft, any nick will ruin the seal. Clip the new units on with the rod pointing shaft-down in the open position (as designed), then check for smooth travel and proper hold at full extension.

Maintenance is largely about prevention. Keep the exposed shafts clean, don’t grease or silicone the shaft, as it attracts grit and can damage the seals. If the car has an accessory spoiler or aftermarket tailgate trim, confirm the correct force rating and length from a trusted catalogue—added weight may call for a different spec. During routine servicing, a simple lift-and-hold test is enough: the gate should rise confidently and remain fully open without sagging.

• Replace in pairs for even performance
• Support the hatch before removal
• Choose OE-quality, nitrogen-charged units with the correct force and fittings

Does the 2010 Impreza have bonnet struts?

No. From factory, the 2010 Impreza (both hatch and sedan) uses a prop rod for the bonnet. Gas struts are only factory-fitted on the hatchback’s tailgate. Aftermarket bonnet-strut kits exist, but they’re not original equipment and should be fitted carefully to avoid hinge or guard damage.

How long do tailgate gas struts typically last on a 2010 Impreza?

Many see 5–10 years depending on climate and usage. Heat, cold, dust, and frequently loaded tailgates (bikes, racks, spoilers) can shorten life. If the hatch won’t stay up, or performance drops noticeably in winter, plan on a replacement set.

Can worn struts be re-gassed or should they be replaced?

For this model, replacement is the practical option. The factory-style sealed units aren’t designed for safe, cost-effective re-gassing. New, correctly rated struts restore proper lift and holding force and are quick to install.