This upgraded truck shock absorber fits part numbers 1260941, 1265271, 1377825 and 1818916.It serves as a key component within the full chassis suspension structure.It lessens road jolts and mechanical vibration to deliver a calm, balanced ride quality.Made with premium-grade raw materials, it adopts refined professional sealing craftsmanship.Its solid structure delivers trustworthy leakproof performance and steady cushioning effect.It also extends overall service life and complies strictly with official OEM guidelines.It mounts with minimal effort and works ideally to replace worn-out or faulty shock absorbers.