40 Inch 80Lb Gas Struts Lift Support for Tonneau Cover and Lid

Our review of these 40 in 80Lb gas struts finds them most useful for anyone replacing or upgrading lift supports on truck bed covers, toolbox lids, camper hatches and heavy cabinet doors. The bottom line: they deliver a clearly stronger lift and hold compared with many generic alternatives, with a 40 in extended length and 80Lb (356N) force per strut that keeps lids open at a safe angle. Installation is straightforward for a DIYer and the pair includes ball-stud fittings and a basic guide.

Key Features

• Force and length: Each strut provides 80Lb (356N) of force with a 40 in extended length, offering substantial lift for heavier lids and covers.
• Compact compressed size: The 22 in compressed length helps when space is limited and reduces interference with surrounding fittings.
• Standard ball ends: 13mm ball stud endings allow straightforward replacement of many factory lift supports without special adapters.
• Wide application: Designed for tonneau covers, toolbox lids, camper kitchens and floor hatches, the pair suits many common vehicle and storage uses.
• Hold angle: Can keep lids open between roughly 90-150 degrees, which improves access and safety during use.
• Support and warranty: The manufacturer provides a 12-month support window and a welcome guide to help with selection and installation.

Who It's For

This product is aimed at DIYers, pickup owners and camper renovators who need higher lift capacity than typical light-duty struts. If a cover or lid weighs between about 64 and 88 lb per strut as advised, these units are built to provide a confident, sustained hold and reduce strain on hinges.

Those who should look elsewhere include people with very lightweight lids that require only gentle damping, or users needing custom-length shafts or non-ball-end fittings; adapters or different models will be better if the 13mm ball stud does not match existing mounts.

Pros & Cons

Pros

• Strong 80Lb force provides reliable lift for heavier lids and covers.
• Standard 13mm ball studs make replacing many factory struts simple and quick.
• Works across many applications from truck toppers to camper kitchens, offering flexible DIY use.
• Manufacturer testing and 12-month support add practical after-sales reassurance.

Cons

• Some customers report strength loss over time, so longevity may vary with heavy or frequent use.
• Not suitable if your mounting points require a different end fitting or nonstandard length.

Specifications

Force per strut	80Lb / 356N
Extended length	40.00 in
Compressed length	22.00 in
Ending fit	13mm ball studs
Included items	2 struts and 1 installation guide
Recommended scope	Suitable for lids ~64-88 lb each

Our Verdict

These 40 in 80Lb gas struts are a sensible choice when a durable, higher-capacity lift is needed for truck covers, toolbox lids and camper hatches. They balance strong holding force and common 13mm ball fittings for easy DIY replacement, and the included support and testing make them good value for most upgrade projects, provided the length and end fittings match the application.

Frequently Asked Questions

Will these fit my existing ball-stud mounts?
They use 13mm ball studs, which match many factory mounts; confirm your current stud size before buying.

How many pounds can each strut support?
Each strut is rated at 80Lb (356N) and is recommended for lids around 64-88 lb per strut for proper balance.

Is installation difficult?
Most DIYers can install the pair with common tools following the included guide; the ball-end fittings simplify attachment.