Engineered for AP3212517 and 131277700 washer models, this 2-pack suspension spring kit features multi-coil spring architecture with high-carbon steel construction. Optimized pre-compression absorbs 85% vibration energy during 1200+ RPM spin cycles, while zinc-plated hooks prevent disengagement. Ideal for 7-10kg capacity machines, it reduces operational noise by 15dB and stabilizes drum alignment without floor scratches. Dual-pack configuration cuts annual maintenance costs by 45% through bulk servicing efficiency.