PZ-8 (PZH) Mud Pump Parts: OEM List and Fluid-End Matching

For PZ-8 mud pump parts, use the PZH designation and the exact configuration in the applicable parts list. The reviewed Gardner Denver 15-514 list identifies PZH as an 8-inch-stroke, single-acting triplex pump. The manufacturer’s model literature pairs PZH with PZ-8.

This guide separates manufacturer-listed reference numbers from aftermarket catalogue codes. The tables below use checked PZH sections of the April 2007 manufacturer parts list, without adding a GM- supplier prefix.

Model and specification reference

Distinguish part numbers from figure positions

The manufacturer list instructs buyers to order by the part number and description; reference positions are provided to locate parts in the drawing. For example, “item 12” is insufficient because item numbers repeat in other assembly sections. Include the exact part number, assembly name and catalogue page.

Match the fluid-cylinder revision and interfaces

The selected fluid-end table is explicitly headed 5000 PSI and Wide Body in the source. It lists fluid-cylinder assembly 201PZL2039 and cylinder 205PZL029. The PZL characters within those listed numbers do not change the document’s stated PZH scope, and they do not justify applying an arbitrary PZL part to a PZH pump.

Check the installed cylinder, manifold interfaces, cover locks, valve guides, studs and seals. The source lists 300PZJ715 for the valve-cover gasket, while its suction-manifold-to-cylinder gasket is 25BE41. Similar-looking numbers from another supplier or earlier catalogue should be checked rather than substituted automatically.

Preserve the model and serial-number evidence

The ordering guidance requests the pump model and serial number. It also explains that right-hand and left-hand sides are viewed from the power end looking toward the fluid end. Include that orientation with photographs when requesting side-specific parts.

5000 PSI Wide Body fluid-end references

This is the configuration named in the 2007 parts list. A 5000 PSI component-list heading is not a pressure rating for every pump, installed liner or replacement part.

Prepare a model-specific parts enquiry

• Send the complete PZ-8 (PZH) nameplate designation, serial number and year.
• Identify the catalogue issuer and provide its exact part reference, page and item number.
• For a fluid end, include cylinder photographs, installed liner bore, valve-cover style, manifold interfaces and seal dimensions.
• State whether the request is for a bare part, modified component, studded module or complete assembly, and list quantities separately.
• Include delivery destination and photographs of the mating components.

Use our mud pump spare parts enquiry page to provide these details. Replacement suitability and availability require confirmation for the actual pump; this guide does not establish an original-manufacturer authorisation or genuine-parts supply claim.

Source references

• PZH: Gardner Denver PZH 8-inch stroke parts list, 15-514, fourth edition, April 2007.
• PZH-CUT: GD Energy Products PZH (PZ-8) specification sheet, 2022 file edition.
• GD2009: Gardner Denver drilling-pump brochure, 1859-2009 anniversary edition, model table on PDF page 4.

Page numbers in the tables are PDF file pages counted from 1, rather than the printed page label. Historical catalogue entries are identification references, not current stock or compatibility guarantees.

Mud King catalogue references for this model

The reference list also includes entries from the Mud King Products expendables catalogue. MK and MKG prefixes identify that supplier catalogue’s numbering. Keep those prefixes and the stated size, valve series, liner outside diameter and source table together. They are not presented as original pump-manufacturer numbers or as a confirmation of fit.