Parker Denison P11S7R1C4A2B000A1M281728 Hydraulic Pump – 023-81728-0

Series-specific model code

Original model: P11S7R1C4A2B000A1M281728

Code coverage: Evidence-supported meanings shown. Contact us to confirm unresolved selections.

Evidence profile: Gold Cup pump field-by-field ordering-code profile (manual-evidence revision 6)

Code segment	Evidence-bound meaning
P	Unit: pump.
11	Documented displacement: 180 cm3/rev.
S	Type: Variable displacement closed-circuit pump with medium-torque through-drive and shuttle package.
7	Shaft: keyed SAE with double-lip seal.
R	Rotation: Clockwise (pump).
1	Seals: nitrile (Buna-N).
C	Design code: C (assigned by manufacturer).
4A	Primary control: spring-centered rotary servo with adjustable maximum volume stops.
2	Secondary control: volume indicator.
B	Control location: primary control on Port B side.
00	Control and displacement features: none.
0	Internal pump: 35 cm3/rev.
A	External drive: SAE-A.
1	External mounting: external pump mounted; separately specified.
M2	Special modification: manufacturer-defined special configuration.
81728	Contact us to confirm.

The parser uses longest-match field boundaries for displacement, optional efficiency, shaft and compact controls. Documented selected values are shown individually; unknown, truncated and extra selections remain visible and show Contact us to confirm. Omitted optional fields are not presented as selected defaults.