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- Energy Suspension warrants its products against defects in workmanship and material for 24 months when used on passenger cars and light trucks. Products that have been abused, altered, or incorrectly installed are not covered. Energy Suspension will replace defective products or component parts, if inspection for factory personnel determines the part to be defective. Warranty replacement covers only the product. Labor claims, time loss, or freight charges will not be honored.
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Energy Suspension Coil Spring Isolators
Responsible for absorbing wheel motion and minimizing its effect on your ride, coil springs are probably one of the most recognizable components of your suspension. A less-easily recognized part are the coil spring isolators. Located at the top and bottom of each coil spring, these discs are what keep the harshest vibrations from being felt in the cab. The OE isolators are normally made of rubber. Rubber isolators are good at reducing these vibrations, but they don't last long.
Energy Suspension makes all of their coil spring isolators with Hyperflex polyurethane, a material much sturdier than rubber. Entirely capable of shrugging off the repeated fluctuations of weight and pressure, Energy's coil spring isolators will hold up much longer than the OE did. This added longevity does come with a price, polyurethane is also firmer than rubber. This firmness does increase your NVH slightly, but most drivers agree that the phenomenally increased longevity of the part is well worth it. In addition, Energy Suspension covers all of their coil spring isolators with a two-year warranty handled in-house here at DST.