Product Range: Cast Iron Gear Pumps and Motors
AM Fluid Power is the distributor for GPM (Gear Pump Manufacturing) cast iron gear pumps and motors — a rugged, Parker Commercial–interchangeable range built in Cape Town, South Africa to ISO 9001 standards, still widely specified across mobile and industrial equipment.
GPM 
- Bearing range — Series 120, 125, 131, 151, 176: 16–200cc/rev, up to 205 bar continuous, 2,400–3,000rpm max speed. Equivalent to the Parker Commercial P20, P25, P30, P50, and P76 series.
- Bushing range — Series 215, 230, 250, 265: 10–147cc/rev, up to 240 bar continuous (higher-pressure compacted graphite iron / CGI construction), 2,400–3,000rpm max speed. Equivalent to the Parker Commercial P315, P330, P350, and P365 series.
- Sectional construction — multiple pump or motor sections can be combined on one drive to eliminate extra PTO units; precision-matched gears, deep 10-tooth pattern, heavy-duty roller bearings throughout.
- Wide choice of SAE and ANSI mounting flanges, splined or keyed shafts, and pipe-thread, O-ring-seal, or split-flange ports in metric or SAE sizing — built to order against GPM's own part-numbering system.
Full specifications, dimensions, and the complete build-to-order part-numbering system: Download the GPM Bearing & Bushing Range catalogue (PDF)
Need help matching a GPM pump or motor to your Parker Commercial cross-reference, or configuring shaft, mount, and port options? Get in touch.