Parker Denison T7DS-B28-1R03-A500 Hydraulic Pump – 024-90156-503

Series-specific model code

Original model: T7DS-B28-1R03-A500

Code coverage: Evidence-supported meanings shown. Confirmation required for remaining configuration.

Evidence profile: T7DS exact single/double/triple ordering-code profile (HY29-0001/UK evidence revision 6)

Code segment	Evidence-bound meaning
T7DS	Series: T7DS.
B28	Pump core (D family) documented displacement: 90.0 cm3/rev.
1	Shaft code 1: keyed SAE C shaft, 31.7 mm nominal diameter.
R	Rotation: right-hand (clockwise), viewed from the shaft end.
03	Two-character porting code preserved; physical port orientation: 03. Contact us to confirm.
A	Design letter: A.
5	Seal code 5: S5 VITON seal class.
00	Connection/modification code: 00.

The exact longest series prefix determines the number and family of pump-core slots. Displacement codes are decoded only through the family table printed for that slot; identical codes are not generalized across A-AS, A-ASW, B, C, D or E cores. Shaft identity remains tied to the complete series. R/L is interpreted from the shaft-end view. Porting 00 is standard; other catalog-shaped porting codes are retained and require physical-orientation confirmation. Unsupported families and unknown special tails fail closed without blocking earlier evidence-supported fields.