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Fluid-End Components
Fluid Ends & Blocks
Fluid-end assemblies and fluid-end blocks
Send your pump model
FRACTURING & WELL-SERVICE EQUIPMENT
Fracturing
Pump Parts
Frac pump parts for STP, QWS and TWS equipment, sourced by the complete pump model and part number.
Pratt Oilfield Supply supports maintenance and procurement teams sourcing from China. Use the model references below to identify fluid ends, valves, seats, plungers, packing and power-end parts.
FLUID ENDS · CONSUMABLES · POWER-END PARTS
01
STP · QWS · TWS
Parts for supported pump models
02
Part Identification
Match drawing numbers and dimensions
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.
Replacement Consumables
Valves & Retainers
Valves, valve seats, springs and retainers
Check availability
Precision Components
Valve Seats
Confirm the correct replacement with your part number or drawing.
Match your partREPLACEMENT PARTS 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
Drawworks & Brakes
PS Hydraulic Disc Brakes
PS series disc brake systems and matching replacement components.
Drawworks & Brakes
WCB Auxiliary Brakes
Water-cooled auxiliary brake assemblies and replacement parts.
No matching products in this category. Try All Products or another model name.
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
Fracturing Pump Parts by Model
The reference range includes STP350, STP600, STP800, STP1000, STP1600, STP2000, QWS2250, QWS2500, SPM TWS600, TWS600S, TWS600S HD, TWS2250 and TWS2500. A shared family name does not establish interchangeability: send the full nameplate model and fluid-end identification.
STP
STP350 · STP600 · STP800
STP1000 · STP1600 · STP2000
QWS
QWS2250 · QWS2500
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 ↗
04 / MAINTENANCE SUPPLY
Availability and Quotation Checks
Send the complete pump model, fluid-end identification, part numbers and quantities to check the parts required. Availability, condition and any alternatives are confirmed in the quotation.
Confirm current availability
Check Parts Availability ↗Please send the pump model, part number and required quantity to confirm current availability.
05 / SPECIFICATION & SUPPLY REVIEW
Confirm the Required Specification
For a replacement or drawing-based inquiry, send the part number, dimensions, material requirements and any inspection or test documentation you need. The quotation should identify the proposed supply scope and the documents that can be provided.
Drawing-based or sample-based requests require a feasibility review. Confirm the agreed specification, inspection requirements and item quantities before placing an order.
Model and Part Number
Drawing and Dimensions
Material Requirements
Inspection Documents
Specify any required pressure-test report or material documentation in the inquiry. The available documents must be confirmed for the quoted part.
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.
Pump maintenance may require standard consumables, precision components and drawing-based requests in the same parts list. Separate these items and provide the identification details for each one.
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 the full model and suffix, serial number, fluid-end identification, part numbers, sizes, quantities and delivery country. Attach a nameplate photo or drawing where possible. Compatibility and availability are confirmed per item before an order.
Jinan Pratt Oil Equipment Co., Ltd.
- +86 15908080040
- 1999@pratt-oil.com
- Website
- www.pratt-oil.com