NACHI PVD-00B-16P-5AG3-5060A

The ZX17U-2 NACHI PVD-00B-16P-5AG3-5060A Hydraulic Piston Pump is a premium-quality, high-performance piston pump specifically designed for ZX17U-2 excavators. Manufactured by NACHI, a globally recognized leader in hydraulic components, this pump ensures efficient hydraulic power delivery, smooth operation, and reliable performance under demanding construction and excavation tasks.

Built with durable materials and precision engineering, this hydraulic pump provides excellent resistance to wear and pressure fluctuations, extending your equipment’s lifespan and minimizing downtime. Easy to install and fully compatible with ZX17U-2 models, it is an ideal replacement part to keep your excavator running at peak efficiency.

The Rexroth Relief Valve 04950403 (part no. R901102333) is a precision-engineered screw-in cartridge valve designed for hydraulic systems in excavators and industrial machinery. This robust, direct-acting spool-type valve offers pressure reducing and relieving capabilities, withstanding up to 350 bar of maximum operating pressure and supporting flow rates around 30 L/min. Constructed with quality materials and standard CAAN cavity compatibility, it ensures responsive, leak-free hydraulic control under demanding conditions.

   SPARKLING MACHINERY NEW PC490 708-1T-13440/708-1T-13610 Cylinder Block is a dedicated, high-strength structural core exclusively engineered for KOMATSU PC490 crawler excavators—heavy-duty equipment critical for large-scale mining, construction, and quarrying projects. As the foundational component of the excavator’s engine, it houses key moving parts (pistons, crankshafts) and forms the sealed chamber for fuel combustion, directly supporting engine power output and operational stability during high-intensity tasks like rock breaking, bulk ore loading, and deep excavation. This function is vital for preventing engine structural failure, maintaining consistent power delivery, and avoiding costly unplanned downtime that disrupts critical project workflows.

   Engineered to meet KOMATSU’s original equipment (OEM) standards and compatible with part numbers 708-1T-13440 and 708-1T-13610, the Cylinder Block withstands harsh working conditions: high combustion pressure (up to 18 MPa), extreme temperature fluctuations (-30°C to 120°C), and continuous vibration from heavy-duty use. It resists thermal deformation and mechanical wear, providing long-lasting structural reliability for KOMATSU PC490 excavators. Backed by strict performance verification, it guarantees seamless compatibility and safe operation for daily high-load engine tasks.

The Valve GP‑Manual (Cat part no. 389‑2407 / CA3892407) is a rugged manual auxiliary shut‑off valve designed for use in heavy-duty Caterpillar excavators—specifically models 352, 323F, 320C, 320D SA, M325D MH/L, 355, and more. It provides dependable two-way hydraulic shut-off control, helping protect critical systems during maintenance or attachments handling. Built to OEM tolerance, this valve ensures reliable operation in the harshest environments, available both as a genuine Cat part and high-quality aftermarket alternative.