Parts for your 2005 Mitsubishi Pajero-Gas struts

2005 Mitsubishi Pajero gas struts: what they do and when to replace them

Gas struts are absolutely relevant on a 2005 Mitsubishi Pajero (NM/NP series). Technical sources including Mitsubishi Motors’ body service literature for NM/NP models and the Mitsubishi ASA/EPC parts catalogue list a gas-assisted damper/strut on the side-hinged tailgate to control opening and support. Aftermarket catalogues from well-known gas-spring makers (e.g., Stabilus Lift-O-Mat, Monroe/Max-Lift) also list direct-fit tailgate gas struts for the 2005 Pajero. The bonnet from factory uses a prop rod rather than gas struts, though upgrade kits exist, the OEM gas strut you’ll most commonly service on this model is the tailgate unit.

On the Pajero’s heavy, spare-wheel-carrying tailgate, the gas strut’s job is to manage the swing and hold the door confidently while you’re loading up. It smooths the opening action so the door doesn’t fly wide in a gust, and it resists drop-back so it won’t try to close on you on a slope. Inside each strut is pressurised nitrogen gas and a small amount of oil, over time seals age, temperature swings take their toll, and the strut can lose force. That’s why a tailgate that once felt light and controlled can start to feel lazy, slam open, or refuse to stay put.

As part of routine servicing, it’s smart to:

• Inspect the tailgate strut every 12 months or 20,000 km for oily residue, bent rods, or loose mounts.
• Wipe the chrome rod with a clean microfibre cloth, don’t grease it (grease attracts grit and damages seals).
• Check the door’s hold-open on level ground and on a gentle incline, note any sudden drops or uncontrolled swing.
• Listen for creaks at the ball studs/brackets and retorque hardware if needed.

Replacement is straightforward but treat the tailgate with respect — it’s heavy, especially with the spare fitted. Always support the door with a helper or prop before popping the retaining clips. Fit the new strut in the same orientation (rod end typically down to keep the internal seal lubricated), and use an OE-quality unit with the correct Newton rating for the Pajero tailgate. If the strut is marginal only in cold mornings, that’s a sign it’s nearing end-of-life, most last 5–10 years depending on climate and use. While you’re there, inspect the hinge and check-strap, and consider upgrading the bonnet with a quality kit if you’re chasing easier under-bonnet access — the factory setup is a simple prop rod.

Does a 2005 Pajero have bonnet gas struts from factory?
From factory, the 2005 Pajero’s bonnet uses a prop rod, not gas struts. Many owners fit aftermarket bonnet strut kits for convenience, but the OEM gas-assisted unit on this model is the tailgate strut.

How do I know the tailgate gas strut needs replacing?
If the door won’t hold position, slams open in wind, sags on inclines, or you spot a light oil film on the rod, the strut is on the way out. Temperature-related weakness (fine at midday, weak at dawn) is another giveaway that the internal pressure has dropped.

Can a home mechanic replace the Pajero tailgate gas strut?
Yes, it’s a simple DIY for most people. Support the tailgate securely, then release the spring clips and swap the strut. Refit with the rod down, ensure the clips are fully seated, and double-check fasteners. Take care — that door is heavier than it looks.