Putzmeister Spare Part WEDGE 426793 ST190121

This genuine Putzmeister wedge spare part, coded 426793 and marked ST190121, is engineered specifically for Putzmeister concrete pump and delivery system assemblies. It serves as a critical locking and positioning component that secures mating parts tightly under high‑pressure working conditions common in concrete pumping operations.

Manufactured from high‑grade wear‑resistant alloy steel, this wedge maintains stable structural integrity against repeated impact, vibration and heavy load during long‑term site use. Precision‑machined dimensions ensure perfect fit with original Putzmeister equipment, eliminating loose positioning or misalignment issues on pumping pipelines and valve units.

Designed for quick installation and replacement, the 426793 ST190121 wedge matches the original mounting standard of Putzmeister core components. It directly replaces worn or damaged wedges in pump systems, helping restore equipment clamping performance without extra modification or adjustment on site.

Regular replacement of this wedge part effectively prevents component loosening, leakage and abnormal wear of surrounding pump parts. It reduces unexpected downtime of concrete pumping equipment and extends the service life of key assemblies on construction and concrete delivery machinery.

As an original‑standard spare part for Putzmeister heavy‑duty pumping systems, 426793 ST190121 wedge meets factory quality specifications. It is a reliable replacement choice for maintenance teams and equipment operators seeking stable performance for daily construction pumping work.