Parts for your 2010 Toyota Bb-Gas struts

2010 Toyota bB gas struts — what they do and when to replace them

Technical confirmation: Toyota’s Electronic Parts Catalog for the bB (QNC20/21/25, 2010 model year) and the 2010 Owner’s Manual specify gas‑charged “back door stays” on the rear tailgate, while the bonnet is held up by a simple prop rod (no front gas struts). The Scion xB (E150) workshop manual—same platform—shows the same arrangement.

On the 2010 Toyota bB, the gas struts on the tailgate do the heavy lifting. They’re nitrogen‑charged dampers that counterbalance the back door, so it lifts smoothly, stays up without fuss, and doesn’t come crashing down on a windy day. They also slow the last bit of travel to prevent slam and reduce stress on hinges and latches. That makes loading groceries, luggage, or the pram a whole lot easier and safer.

These struts are sealed units, so there’s no routine servicing beyond simple care checks. Over time, the internal gas pressure and seals can fade, especially with age, heat, cold, or coastal conditions. When they’re tired, the bB’s tailgate will tell the story. Common signs include:

• The tailgate won’t stay up or drops unexpectedly, especially in cold weather
• Needing a helping hand to lift the door the first third of travel
• Uneven or jerky movement, or the door opening lower than it used to
• An oily film on the strut shaft or body, indicating seal weep
• Clicking or knocking at the ball joints from worn end fittings

When replacement time comes, it’s best practice to fit struts in pairs. That keeps forces even on the hinges and ensures consistent lift. Match length, end fittings, and force rating to the bB’s specification, quality aftermarket or OE‑equivalent units are fine. During the job, always support the tailgate with a prop or an extra set of hands. Pop the spring clips off the sockets, swap one side at a time, and avoid twisting the strut body. Don’t lubricate the chrome shaft—just keep it clean, a light dab of suitable grease on the ball studs is okay if the manufacturer allows it.

There’s no fixed interval—many bB owners see 5–10 years out of a set, but heavy use, heat, and salt air can shorten that. After fitting, check for smooth travel and full hold at the top stop. Dispose of old struts responsibly, they’re pressurised components.

Popular questions

Does the 2010 Toyota bB have gas struts on the bonnet or tailgate?
The bonnet uses a prop rod. The tailgate (back door) is supported by a pair of gas‑charged struts. That’s the factory setup for the 2010 bB.

How long do the rear gas struts on a 2010 Toyota bB last?
There’s no set lifespan, but 5–10 years is common. Cold snaps, hot summers, frequent use, and coastal conditions can all shorten service life.

Can the bB’s gas struts be re‑gassed, or should they be replaced?
They’re sealed units, so re‑gassing isn’t a standard service. Replacement with the correct‑spec struts is the reliable, cost‑effective fix.