12 inch 40 lb Gas Strut Lift Supports for Camper Shell RV Tool Box, Qty 2 | Stroke 3.9 in, Compressed 8.1 in, 178.0N per Strut, Replaces 1578EV,($12.59Value)

Description

Universal Fit by Size and Force - extended 12.0 in, compressed 8.1 in, stroke 3.9 in, 40 lb (178.0N) per strut. Measure your old strut before ordering. All-Weather Durability - crafted from Grade 45 high-carbon steel with multi-layer chrome plating and anti-wear hydraulic oil; performs reliably from -40F to 110F, resisting leaks and pressure loss. Built to Last - engineered for 50,000+ compression cycles without force loss; rust and oxidation resistant. Wide Uses - camper shell, truck cap window, RV door, toolbox, bed cover, cabinet, storage lid and more. Package includes 2 struts (2 Pcs). Cross Reference: replaces 1578EV. Verify extended length and force rating against your original strut before buying. Q1. How do I choose the right gas strut? Match two numbers: extended length (12.0 in) and force per strut (40 lb / 178.0N). Measure your old strut end-to-end at full extension.

Q2. What can I use these on? Camper shells, truck cap windows, RV doors and hatches, toolboxes, bed covers, cabinets and storage lids - any lift with matching mounts.

Q3. How many do I get? 2 struts per order - replace both sides together for balanced lift.

Q4. When should I replace? If the lid sags, will not stay open, or closes too fast - the struts have lost pressure.

Q5. How durable are they? Grade 45 high-carbon steel, multi-layer chrome plating, anti-wear hydraulic oil, 50,000+ compression cycles, stable from -40F to 110F.