349015 Hilux KUN25 GGN15 Shock 48531-09550 4854139306 4853109550 48531-0K320 313885 48531-09440 48531-09460 48531-09480 48531-09490 48531-09590 48531-09600 48531-09690 48531-0K100 48531-0K120 48531-0K140 48531-0K170 48531-0K310 48531-0K330 48531-0K340 for Toyota Shock Absorber

Main Functions

During compression, the wheels compress and lift upward, pushing the shock absorber piston down; internal oil flows freely with low damping force to absorb road impacts and deliver a smooth ride. During rebound, the spring resets and moves the piston upward, while the valve assembly narrows the oil passage to raise damping resistance, effectively curbing excessive spring bounce and vehicle vibration. Its adaptive valve system maintains a wide oil passage for soft damping and comfort over small low-speed bumps, and tightens the passage to boost damping force at high speeds or on rough, potholed roads, enhancing vehicle support and reducing wandering and body roll. Thanks to the fully sealed oil reservoir, the cylinder retains hydraulic fluid steadily, using hydraulic resistance to dissipate vibration kinetic energy as heat and ensure consistently stable driving performance.