40 Inch 150Lb Gas Struts Lift Support for Tonneau Cover and Hatch

Our review of these 40 in 150Lb gas struts finds them best for DIYers and vehicle owners needing heavy-duty lift supports for lids and covers. The most compelling reason to buy is the raw lifting force: each strut provides 150Lb/667N and an extended length of 40 in, which keeps lids open between roughly 90 and 150 degrees and handles applications where substantial weight or resistance is present. Installation is straightforward for anyone comfortable with basic hardware swaps, and the pair arrives with ball-stud fittings and a simple guide.

Key Features

• 150Lb force per strut: Delivers strong, reliable lift and holds heavy covers open without the need for a prop.
• 40 in extended length: Provides long reach for larger lids such as tonneau covers, truck toppers, and floor hatches.
• 13mm ball-stud fittings: Ends mount to common ball studs for straightforward replacement of many OEM struts.
• Weather-ready construction: Built and tested to withstand variations and harsh weather for outdoor and automotive use.
• Includes two struts and guide: The package contains two matched struts and an installation guide to simplify pairing and mounting.

Who It's For

This kit is aimed at truck owners, camper builders, and home DIYers who need a durable lift support for tonneau covers, toolbox lids, camper kitchen hatches, or basement floor doors. It is useful where a strong, long strut is required to hold larger lids open safely without sagging.

Those who should look elsewhere include buyers needing low-force, lightweight supports for small cabinet doors or delicate lids, or anyone who requires a folding or adjustable-length strut. Also consider a different specification if your application needs ball studs other than 13mm or a different compressed length.

Pros & Cons

Pros

• High lift capacity that handles heavy lids and keeps them open securely.
• Long 40 in extended length suits larger applications like truck beds and camper hatches.
• Simple 13mm ball-stud termination and included guide make installation straightforward.
• Designed and tested for durability in varied weather conditions.

Cons

• Some users report variable longevity; a few noted the struts may lose strength sooner than expected under heavy, continuous use.
• Not suitable for light, delicate lids that need low lift force or softer closing action.

Specifications

Force	150Lb / 667N per strut
Extended Length	40.00 in
Compressed Length	22.00 in
Ending Fit	13mm ball studs
Package Contents	2 struts, 1 installation guide
Recommended Scope	120-165lb per strut applications

Our Verdict

These 40 in 150Lb gas struts are a sensible buy for anyone replacing or upgrading lift supports on heavy lids like tonneau covers, truck toppers, and camper hatches because they pair strong, long travel with easy ball-stud mounting. Given the robust lift and weather-tested design, they offer good value when matched to a heavy-duty application, though buyers should expect performance to vary with extreme, continuous duty.

Frequently Asked Questions

Will these fit my existing ball studs?
They terminate on 13mm ball studs, so they will fit applications using that common size; verify your stud diameter before ordering.

Can one person install them easily?
Yes, installation is straightforward for someone comfortable with basic tools; the package includes an installation guide to assist.

How much weight can each strut support?
Each strut is rated at 150Lb/667N and is intended for applications roughly in the 120-165lb range per strut.