Parts for your 2004 Toyota Crown-Gas struts

2004 Toyota Crown Gas Struts — What They Do and When to Replace Them

Technical sources confirm gas struts are relevant on the 2004 Toyota Crown. Toyota’s Electronic Parts Catalogue (EPC) for the S180-series Crown (circa 2003–2008) lists gas-charged “stay, hood” units for the bonnet, while the luggage compartment is typically supported by torsion bars and, on some grades, a power boot closer rather than gas struts. This layout is echoed in Toyota workshop literature for the S180 body mechanical sections and widely mirrored by reputable parts catalogues for GRS180/182 Crown variants.

On this model, the gas struts do the heavy lifting at the bonnet. They’re small, pressurised dampers that counteract the bonnet’s weight and control its movement, so it opens smoothly and stays put without sudden drops. In day-to-day use that means easier access for servicing, fewer near-misses with a falling bonnet, and less strain on hinges. Given the Crown’s luxury bent, that smooth, damped motion is part of the experience.

Like any sealed hydraulic component, bonnet struts gradually lose pressure with age, heat, and use. Owners usually notice the bonnet no longer holds up, sags in wind, or needs a shoulder to keep it open. A light misting of oil near the shaft, a faint hiss, or uneven lift are other giveaways.

• Replace in pairs to keep lift and holding force balanced.
• Choose the correct length, end fittings, and force rating for the S180 Crown.
• Support the bonnet securely during replacement, don’t rely on a tired strut.
• Keep the shaft clean, avoid grabbing it with pliers or spraying silicone/grease on it.
• Inspect ball studs and clips, renew any that are worn or corroded.

There’s no real servicing beyond basic care—gas struts aren’t designed to be re-gassed. In Aussie and Kiwi conditions, many last 5–10 years, but high heat and frequent use can shorten that. As part of routine servicing, a quick lift-and-hold check is smart: open the bonnet, let it sit at full extension for a minute, and nudge it gently. If it droops or feels weak, it’s time to swap them out. Quality replacements are a straightforward, affordable upgrade that restores safe, hands-free access to the engine bay.

FAQs

Which parts of a 2004 Toyota Crown use gas struts?
On the S180 Crown, gas struts are fitted to the bonnet. The boot typically uses torsion bars and, on some models, a power closer rather than gas struts. That’s why bonnet struts are the common replacement item.

How long do bonnet gas struts last on a Crown?
In local conditions, many last 5–10 years. Heat, mileage, and how often the bonnet is opened all play a part. If the bonnet won’t stay up or rises in jerks, plan a replacement.

Can Crown bonnet struts be re-gassed?
No. They’re sealed units. Once they’ve lost pressure or started leaking, replacement is the reliable fix. Fit them in pairs and match the original force rating.