Caterpillar VPG-45

The Caterpillar VPG-45 is a mechanical demolition and sorting grapple, a mid-to-large member of Cat's V-series grapple lineup that also includes the VPG-25, VPG-35, and VPG-55. It is a passive work tool with no engine and no ECM of its own; its jaw cylinder draws hydraulic flow directly from the host excavator carrier's own circuit rather than from any onboard pump or tank. It mounts to an excavator-class carrier through a dedicated mounting bracket group paired with a jaw group, listed in Cat's parts catalog as an AR-Mechanical grapple arrangement rather than as a hydraulically actuated rotator or thumb. No published Specalog, operating weight figure, jaw-opening dimension, or serial-prefix scheme has surfaced for this exact model, and production years are not documented in available records, so those figures are stated here as undocumented rather than estimated or borrowed from a sibling.

Cat's parts records show no distinct generation split within the VPG-45 itself; it sits as one fixed arrangement sized toward the larger end of a family graduated by carrier class, with the VPG-25 and VPG-35 covering smaller carriers and the VPG-55 above it. Tools this size handle demolition sorting, scrap loading, and heavy material handling where an operator needs to grab, orient, and drop irregular loads rather than dig or cut. Because it has no powertrain, its usable life is governed entirely by wearing mechanical parts: pins, bushings, jaw hardfacing, and the cylinder. That keeps well-maintained units viable long after any new-sale window, and it is why pin, bushing, and cylinder parts availability, plus bracket fit to a specific carrier, drives value in the used-attachment market for this size class ahead of any engine or electronics condition.

Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.