Red fracturing pump and a selection of replacement components

FRACTURING & WELL-SERVICE EQUIPMENT

Fracturing
Pump Parts

Replacement parts for STP, QWS and TWS fracturing and well-service pumps.

Fluid ends, valves, seats, plungers, packing and power-end components — matched to your equipment.

Get a Quote Contact Our Sales Team

FLUID ENDS · CONSUMABLES · POWER-END PARTS

01
STP · QWS · TWS

Parts for supported pump models

02
Standard & Custom Parts

Manufactured to drawings or samples

03
Maintenance & Overhaul

Consumables and precision components

01 / REPLACEMENT COMPONENTS

Spare Parts We Supply

From fluid-end assemblies to everyday consumables and power-end components, organize the parts you need for routine maintenance or a major overhaul.

Machined valve seats shown in detail
PRECISION COMPONENTS

Valve Seats

Confirm the correct replacement with your part number or drawing.

Match your part ↗

COMPLETE SUPPLY RANGE

More parts.
One coordinated order.

  • Plungers, packing sets, packing glands and stuffing boxes
  • Suction manifolds, discharge manifolds and discharge flanges
  • Valve covers, plugs, seals, O-rings and gaskets
  • Crossheads, crosshead pins, connecting rods and pony rods
  • Crankshafts, pinion shafts, gears and bearings
  • Overhaul kits and other pump replacement parts

EXPLORE / EQUIPMENT & SPARE PARTS

Find your product.
Build your parts list.

Browse by equipment type, explore model details, then send your requirements for a matched quotation.

17 products · View details or request a quote

Confirm the full equipment model, part number and configuration before ordering. Need help identifying a part? Send your nameplate, drawings or photos to our team.

02 / PUMP COMPATIBILITY

Find Your Pump Series

We supply replacement parts for STP350, STP600, STP800, STP1000, STP1600, STP2000, QWS2250, QWS2500, SPM TWS600, TWS600S, TWS600S HD, TWS2250 and TWS2500 pumps.

01 / STP SERIES

STP

STP350 · STP600 · STP800
STP1000 · STP1600 · STP2000

02 / QWS SERIES

QWS

QWS2250 · QWS2500

03 / TWS SERIES

TWS

SPM TWS600 · TWS600S · TWS600S HD
TWS2250 · TWS2500

03 / FLUID-END COMPONENT REFERENCE

Every Component.
Clearly Identified.

Use your pump model, part number and available drawings to help us identify the required replacement parts.

Valves & seatsPlungers & sealsGlands & nutsHousings & flanges
View full-size component diagram ↗
Exploded fluid-end diagram showing nut, spring, valve, valve seat, flange, plunger, gland nut, plunger seal and housing
Fluid-end component reference · Click to view details
Valves and seats prepared together in a wooden shipping crateStacks of machined valve seats in the workshop

04 / MAINTENANCE SUPPLY

Stock Availability

Common consumable and replacement parts are available from stock for selected pump models, including valves, valve seats, packing sets, seals, O-rings, gaskets and overhaul kits.

Confirm current availability

Please send the pump model, part number and required quantity to confirm current availability.

Check Parts Availability ↗

05 / STANDARD & CUSTOM MANUFACTURING

Manufacturing Capability

We manufacture standard and customized pump parts with CNC machining, material inspection, heat treatment and dimensional inspection. Pressure testing is available for applicable fluid-end components.

Parts can be manufactured according to your drawings or samples. Send us the pump model, drawing number or part number for a quotation.

Rows of red fluid-end assemblies in the manufacturing workshop
FLUID-END ASSEMBLIES / WORKSHOP VIEW
01

Material Inspection

02

CNC Machining

03

Heat Treatment

04

Dimensional Inspection

Pressure testing is available for applicable fluid-end components.

PRATT OIL / YOUR PARTS SUPPLY PARTNER

From Routine Maintenance
to Major Overhauls.

Pratt Oil focuses on replacement parts for oilfield drilling, fracturing, cementing and well-service equipment.

We understand that pump maintenance often requires standard consumable parts, precision-machined components and specially manufactured parts in the same order.

Our team can help verify part numbers, check drawings, organize different products in one shipment and support both routine maintenance and major overhaul projects.

LET’S MATCH YOUR PUMP PARTS

Request a Quotation

Looking for replacement parts for an STP, QWS or TWS pump?

Send us the pump model, part number, required quantity and available photos or drawings. We will check the specifications and prepare a quotation according to your requirements.

Get a Quote ↗Contact Our Sales Team
YOUR CONTACTJason Yang

Jinan Pratt Oil Equipment Co., Ltd.

WhatsApp
+86 15908080040
Email
1999@pratt-oil.com
Website
www.pratt-oil.com