Parker Denison P11S2R1C9A4A000A1M281177 Hydraulic Pump – 023-81177-0

Series-specific model code

Original model: P11S2R1C9A4A000A1M281177

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.
2	Shaft: keyed SAE with mechanical seal.
R	Rotation: Clockwise (pump).
1	Seals: nitrile (Buna-N).
C	Design code: C (assigned by manufacturer).
9A	Primary control: electrohydraulic stroker with adjustable maximum volume stops.
4	Secondary control: torque limiter and volume indicator.
A	Control location: primary control on Port A side.
00	Control feature: 24 VDC.
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.
81177	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.