Parts for your 2013 Toyota Bb-Gas struts

2013 Toyota bB gas struts — what they do and when to replace them

Based on technical sources — Toyota’s Electronic Parts Catalogue (EPC) for the QNC2# bB, the Toyota repair manual sections for the back door stay, and common lift-support catalogues (e.g., Stabilus/Monroe) — gas struts are fitted to the back door (tailgate/hatch) of the 2013 Toyota bB. The bonnet on this model uses a prop rod, not gas struts. So, for this vehicle, “gas struts” are relevant to the tailgate only.

On the 2013 Toyota bB, the tailgate gas struts counterbalance the weight of the hatch so it lifts smoothly and stays put overhead. They control the opening speed, reduce slam on closing, and keep hands free when loading the boot. Good struts are also a safety item — tired units can let the hatch drift down or drop unexpectedly, which is no fun on a windy day or a cold morning.

Owners will usually notice failing struts when the hatch rises slowly, needs a helping hand to open fully, or won’t stay up in cooler weather. Oil misting around the shaft, squeaks, or visible corrosion are other red flags. While there’s no fixed replacement interval, five to ten years is common, heat, coastal air, and frequent use in Aus and NZ can shorten their service life.

• Replace in pairs to keep lift and damping balanced.
• Support the hatch with a prop while working, keep clear of the sweep arc.
• Install with the rod end down (as per the manual) to keep internal seals lubricated.
• Do not grease the shaft, just wipe it clean with a soft cloth.
• Check hinge and mounting brackets for wear, tighten fasteners to spec.
• If you’ve added weight (spoiler, rack, extra trim), choose the correct higher force rating rather than “universal” units.

Quality matters: OEM or reputable aftermarket struts sized for the bB’s tailgate weight will last longer and work better. After fitting, cycle the hatch a few times to confirm smooth, consistent motion and a solid hold at full height. As part of regular servicing, a quick inspection — open, hold, listen, and look for oiling — helps catch weak struts before they become a hazard. And remember, the bB’s bonnet is on a prop rod, so there’s no bonnet gas strut to service or replace.

FAQs

Does the 2013 Toyota bB have bonnet gas struts?
No. The bonnet is supported by a prop rod. Only the tailgate uses gas struts on this model, as shown in Toyota EPC listings and the factory repair procedures.

How long do tailgate gas struts last on a bB?
Typically 5–10 years, depending on climate and use. If the hatch won’t stay up, opens sluggishly, or shows oil on the shaft, it’s time to replace them — ideally as a pair.

Can added accessories affect which struts I need?
Yes. Extra weight from a spoiler or rack may require higher-force struts. Choose units specified for the bB with your accessory load to avoid overstressing hinges or causing an overly fast lift.