SKU: RESS-COSA-49
MPN: S-COSA-49
The Spring Rubber C/O 10lb White is a precision polyurethane isolator designed to dampen vibration and protect coilover suspension components during street driving and performance tuning. Built by RE Suspension for springs in the 2.25 to 2.5-inch range, this rubber collar serves as a critical buffer between spring coils and chassis mounting points, preventing metal-to-metal contact that causes noise and accelerates wear. Whether you're upgrading a daily driver with an aftermarket coilover kit or fine-tuning a track-focused platform, this spring rubber addresses the noise and movement problems that stock suspension simply doesn't solve.
Engineered from durable polyurethane, the Spring Rubber C/O 10lb White combines stiffness with deflection properties—the 10-pound spring rate rating indicates it's calibrated for light-to-medium spring loads, while the 0.75-inch height positions the isolator at the spring's contact point where vibration energy transfers most aggressively. The white polyurethane compound resists UV degradation and maintains elasticity across temperature extremes, crucial for vehicles exposed to hot asphalt or winter storage conditions. This compact isolator weighs only 0.12 pounds but absorbs harshness that would otherwise transfer through the suspension geometry into the chassis and cabin.
Mechanics and suspension builders install spring rubbers as a core component when replacing worn coilover assemblies or transitioning from OEM springs to lowering kits. The C/O designation identifies it as a catch-or-collar style rubber, fitting directly onto the spring body rather than mounting separately—installation requires no special tools beyond basic coil removal. Spring rubbers are sold individually, so verify your coil count before ordering; a typical four-wheel setup requires four units. Compatible with most aftermarket coilover platforms that specify 2.25 to 2.5-inch spring diameters, this isolator delivers measurable reductions in suspension squeak and clatter while extending the service life of your spring assembly.
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