ARANA 17" Gas Lift Struts for Knaack Storagemaster 89 — 2-Pack Replacement, Smooth Hold-Open

If your tool chest lid is heavy to lift or won’t stay open, these replacement gas struts restore smooth, stable operation. The pair arrives with an installation guide and mounts to the same center-to-center points as the original 977 series, giving a direct fit for Storagemaster models and many comparable job boxes. Built for frequent use on job sites, these supports reduce lid slamming and make accessing tools easier and safer.

How do these struts improve daily toolbox use?

They take the strain out of lifting heavy lids and hold the lid open reliably so you can work hands-free. The gas pressure delivers controlled motion when opening or closing, minimizing sudden drops and making repetitive access less fatiguing.

• Smooth gas-assisted opening and controlled closing
• Secure hold-open function for safe tool access
• Reduces lid wear by preventing hard slams

Will these fit my Knaack Storagemaster or other boxes?

These ARANA struts are specified for a 17.0 inch center-to-center extension and are intended as direct replacements for the Knaack Storagemaster 89 OEM 977 series. They also suit many heavy-duty tool boxes and lids that share the same mounting spacing and duty requirements.

• Total extended center-to-center length: 17.0 inches
• Designed for Knaack Storagemaster 89 and similar lids
• Direct-replacement orientation matches 977 OEM mounting points

How do I install these replacement gas lift supports?

Installation is straightforward with the included guide and basic hand tools. Typically you remove the worn strut, align the new unit to the same center-to-center points, and secure the ball-stud mounts; the gas strut will then function immediately without adjustments in most cases.

• Includes installation guide for step-by-step help
• Mounts to standard ball-stud fittings used on Knaack boxes
• No special tools or gas charging required

What durability and after-sales support does ARANA provide?

These struts are manufactured for frequent jobsite cycles and come with a one-year support promise from ARANA. If you encounter manufacturing issues, ARANA commits to assisting with troubleshooting and resolution within the support term.

• Two high-quality gas struts per package for matched performance
• 365 days of ARANA support for product quality concerns
• Replaces OEM part number 977-2PK for straightforward ordering

Who this accessory is for: The ARANA 977-2PK gas strut set is made for contractors, mechanics, and tradespeople who use Knaack Storagemaster tool chests or similar heavy-lid job boxes and want a reliable, safe, and easy-to-install replacement. It’s also suitable for equipment managers and facilities teams replacing worn lid supports to restore dependable operation across multiple tool boxes.