DONGLI / Reciprocating pumps & fluid-end partsFind by model

01 — An assembly in focus

The whole pump.Every detail.

Shijiazhuang Dongli Petroleum Machinery publishes this aftermarket catalogue. Explore the assembly, find parts by model, then check the original manual. Confirm printed numbers and fitment before you order; do not order when the model or suffix is unconfirmed.

Explore the 3D stage W-446 photo & review notes

W-446 appearance study, reconstructed from supplied CAD views. Manufacturing dimensions, hidden geometry and fitment require technical review.

W-446Exterior 3D study · pending technical review

User-supplied W-446 CAD side view with power end, fluid end, pulsation dampener, gauge and skid.

Exterior study from supplied CAD views. Internal transmission is illustrative; dimensions, hidden geometry and fitment require review.

Drag or use arrow keys to view; +/− to zoom, Home to reset. Illustrative transmission: gears, cranks and three reciprocating assemblies. Speed, phase and stroke are not equipment specifications.

Compare original CAD ↗

Open the supplied views to check the silhouette and configuration.

Download animated study · GLB / approx. 7.8 MB

W-446 · Detail view

02 — Your starting point

Start with what you know.

Part number for the catalogue. Model for the manual. Choose the route that fits your information.

03 — Part atlas

Browse the catalogue by where a part sits.

Pick a callout to see how many catalogue records we hold for that part family, with example part numbers. A navigation aid, not a fitment chart.

Callouts

Crankshafts & bearingsrecords 55 Connecting rodsrecords 18 Crossheads, wrist pins & guidesrecords 31 Packing, seals & gasketsrecords 115 Pony & piston rodsrecords 47 Cylinder linersrecords 107 Pistons, cups & plungersrecords 104 Fluid-end modules & chambersrecords 52 Valves, seats & springsrecords 140 Valve & cylinder coversrecords 38 Relief valves & dischargerecords 21

Cylinder liners

107 catalogue records25 with a part number7 part types

Reference brands named in records

  • FMC Bean9
  • Aplex2
  • Myers1

Identification only; not OEM authorization or fitment.

Browse all Cylinder Liner records (79)
Generic schematic of a reciprocating piston pump, drawn for navigation only: not to scale and not taken from any manufacturer’s drawing. Callouts group our catalogue records by their catalogued part type; they do not indicate that any record fits a particular pump. Fitment, specifications and availability are confirmed case by case against the original part number and manual. 728 of 944 catalogue records are grouped on this drawing; the other 216 (general pump parts, kits, tools and similar) are in the full parts directory. Full parts directory

04 — Product index

Find the next step for your pump.

Model Catalogue

Mud & drilling pumps

Triplex mud pumps that keep drilling fluid moving on onshore and offshore rigs — complete units and the wear parts behind them, covering 25+ pump brands.

272 models

Well-service pumps

Browse plunger and piston pump references for workover, cementing and pressure work. Confirm seals, valves, liners and availability for the requested configuration.

23 models

Aftermarket parts catalog

944 catalogue records searchable by pump model or part number. Confirm dimensions, interchange references and fitment against original documents before ordering.

944 items

05 — Structure study

Explore hydraulic liner retention

Hydraulic liner retention system animation

The section animation explains the concept of hydraulic preload and mechanical locking. Confirm installation steps, service time and supplied configuration against the pump and technical documents.

Watch how it works

06 — Company at a glance

Why buyers choose Dongli

Company profile: established
2008
Parts catalog
944 records
Pump brands
25+

  1. Pump and parts enquiries

    Browse complete pumps and parts in one place; confirm the requested configuration and each part before supply.

  2. Documented component scope

    Supplied API Q1 and API 7K copies cover piston mud pump components; ISO 9001:2015 has a separate stated scope. Check current status with each issuer.

  3. Export enquiries

    Contact the Shijiazhuang team to confirm export availability and local service arrangements for your destination.

  4. Source-led technical review

    Use equipment nameplates, original part numbers and source documents to confirm specifications and fitment for each enquiry.

07 — Reference brands

Browse parts by reference brand

Aftermarket fluid-end and power-end catalogue records grouped by reference brand. Brand names are for identification only; confirm fitment from original documents.

08 — Applications

Built for demanding field work

  1. Oil & gas drilling

    Mud, HDD and well-service pumps plus fluid-end wear parts for onshore and offshore rigs.

  2. Mining & construction

    Piston and plunger pumps for slurry transfer, dewatering and horizontal directional boring.

  3. Municipal & water

    Reciprocating pumps and replacement parts for water-well and municipal engineering.

Based in Shijiazhuang Headquartered in Shijiazhuang, China. Confirm delivery and service arrangements for each destination.

09 — Contact

Talk to our team

Send your part list or pump model for review. Fitment, availability and lead time are confirmed case by case.

Request a quote

Common questions

What is this website?
Shijiazhuang Dongli Petroleum Machinery Co., Ltd. (legal name 石家庄冬利石油机械有限公司) publishes a bilingual aftermarket catalogue of mud-pump, HDD, well-service and fluid-end parts on donglipumps.com. Catalogue records identify reference material; they do not confirm stock, OEM authorisation or interchange.
Do catalogue counts mean a part is in stock?
No. This source lists 472 pump records and 944 part records. Those figures are catalogue counts, not inventory. Availability is confirmed per enquiry.
What should I send, and when should I not order yet?
Send the full model and suffix, the part number as printed, and a photo of the old part or nameplate. If the model or suffix is unconfirmed, ask for a review first — a catalogue hit is not an order approval.