Your manufacturer of well service pump power end parts and components

Your factory partner for frac pump power end parts

TianyuMfg manufactures and supplies all major power end parts for widely used well service pumps in the oilfields, including main bearings, bull gears& pinion shafts, crankshafts, connecting rods, and bearing housing, stay rods, wrist pin, bushings, etc.

All these aftermarket parts are precisely machined and well surface treated for extending pump life and presenting unnecessary maintenance.

Most common pump models that we are manufacturing power end parts for are:

WEIR SPM TWS600| QWS1000| TWS2000/2250| QWS2500


We also welcome requests coming with customers’ own designs and sign the NDA before the process for confidential purposes.

Note: Manufacturers’ names or trademarks used on this website are for identification purposes only. TianyuMfg is not affiliated with these companies.

TianyuMfg well service pump power end components

The parts that we are manufacturing for pump power ends are:

NFP18-393.7M-P69 QWS2500 bearings

Main bearings

QWS1000 connecting rod

Connecting rods

TWS600 power end crosshead

Crosshead and guides

Frac pump bull gears and pinion shafts

Bull gears and pinion shaft

QWS2500 frac pump forged crankshaft


QWS1000 gearboxes


Power end wrist pin and bearing

Wrist pin and bearing

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Power end components

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