Part: 587-1312 piston pump, listed by Caterpillar as PUMP GP-PS-B, a variable displacement axial piston unit. The unit we photograph carries a plate reading piston pump, CNR 587-1312.

Trade fitment: 349 GC, 350 and 350 mobile hydraulic power unit. Caterpillar’s own applicability data for this number could not be verified, and we say so below rather than inventing a fitment list.

Supplied as: new HTD-brand replacement, made in China. MOQ 1 piece, wooden case, dispatch 5 to 8 working days.