Parts for your 2008 Nissan Pathfinder-Gas struts

2008 Nissan Pathfinder gas struts: what they do and when to replace them

Based on technical sources, gas struts are absolutely relevant to a 2008 Nissan Pathfinder (R51). The Nissan Pathfinder 2008 Model Year Service Manual (R51) – Body/Doors/Roof (BL) section details the rear lift gate “stay” components as gas‑charged units, and the Nissan FAST electronic parts catalogue lists gas stays for the rear door. The same factory documentation shows the bonnet uses a support rod rather than gas struts. So, on this model, gas struts are fitted to the tailgate (and not the bonnet).

On a 2008 Pathfinder, the tailgate gas struts are there to counterbalance the weight of the rear door, making it easy to lift and keeping it safely held open. They’re nitrogen‑charged dampers with a polished shaft and sealed ends, designed to deliver smooth, controlled movement across a wide range of temperatures.

Over time, seals harden and the internal gas pressure drops. That’s when owners notice the tell‑tale signs: the tailgate won’t stay up, it drifts down in colder weather, needs a shove to open, or there’s a faint oil film on the shaft. When one strut fades, the other isn’t far behind, so replacement is best done in pairs to keep lift and balance even.

Servicing tips suited to Aussie and Kiwi conditions:

• Inspection: Check the struts every 12 months or 20,000 kilometres for holding force, smooth travel and any oil weep.
• Cleanliness: Keep the shafts clean and dry—wipe dust off with a soft cloth. Avoid spraying lubricants on the shaft, they can attack the seals.
• Hardware: Check ball studs and brackets for corrosion or looseness. A dab of silicone-safe lubricant on the ball joint (not the shaft) can prevent squeaks.
• Load changes: If a ladder, spare carrier or heavy accessories are fitted to the tailgate, consider uprated struts matched to the added weight.

DIY replacement is straightforward but mind the safety: support the tailgate with a prop or a mate before starting. Use a small flat screwdriver to lift (not fully remove) the metal retaining clip at each end, then pop the strut off the ball studs. Press the new strut onto the balls until the clip snaps home. Always fit both sides. If any mounting bolts are removed, tighten them firmly and recheck after a few open/close cycles.

Most original struts last 5–10 years depending on climate and use. If the tailgate doesn’t stay up confidently, it’s time—don’t risk a bump on the head.

FAQs

How long do 2008 Pathfinder tailgate gas struts typically last?
In local conditions, many see 5–10 years of service. Heat, dust, and frequent use shorten life, while garage parking helps. If the tailgate sags or needs a shove to lift—especially in cold weather—replacement is due.

Should both gas struts be replaced at the same time?
Yes. They work as a pair, and a new strut matched with a tired one can twist the tailgate and feel uneven. Replacing both restores balance and proper lift.

Why do my struts feel weaker in winter?
Gas pressure drops with temperature, so marginal struts show their weakness on cold mornings. If they struggle in winter, they’re near the end and should be renewed.