Description
FPK123557 – HYDRAULIC ROTOR (15.38" OD)
PART NUMBER(S):
Fleet Products: FPK123557 (New) | Replaces OE: GM 12547785, 15512363, 15619970, 88936204, 88982935 | Blue Bird 0044646, 10022169, 10028274 | Volvo 3946486 | Ford YC3Z2C026AA, YC3Z1125AA | Bendix 141272, PRT5346, PRT5688, E12585019, E12585006
DESCRIPTION:
Model: Hydraulic Disc Rotor (Hat Shape)
Vehicles: Isuzu FTR/FVR/FXR (2003–2009) front and rear, GM 5500–7500 medium duty, and Thomas Built Bus Minotour applications.
• Disc Outside Diameter: 15.380″
• Overall Depth: 3.400″
• Bolt Circle Diameter: 7.250″
• Hole Diameter: 0.590″ (0.656″ nominal)
• Number of Holes: 10
• Pilot Diameter: 6.000″
• Brake System: Hydraulic Disc
• Disc Shape: Hat 5 tapped holes for ABS ring mounting
Applications: Is this rotor designed for your GM or Isuzu medium-duty truck? Yes—built for 2003–2009 GM C4500–C7500, Isuzu FTR/FVR/HTR/HVR, and Thomas Minotour buses, this 15.38″ rotor ensures OEM-grade braking, ABS readiness, and drop-in replacement fitment.
CROSS-REFERENCE(S):
Meritor 123557, 123489, 123498, 123434, 123440, 123485, 23-122729-002, 23-123489-002, 23-123498-002, 23-123557-004, 23-123557-009, 23123557002, 23123557004, 23123557009, RC4414557 | PFC Brakes 390.048.20, 390.086.20 | AIMCO 55104, 5583, 55076, 65750 | Euclid E11311, E12521, E12524, E14557, E4230 | Gunite D6052, R6052 | Webb 54301, 54301P, 54775, 54775P65 | Raybestos 8510, 56995, 580263 | Centric 120.80001, 120.80014 | Wagner BD125090, BD126372 | Fleetrite FLT1700150S1 | Dayton 122729, 123557 | ConMet 10019996 | SilverbackHD 19HR996G | Walther EMC 17-00116-S1 | Automann 153.122729, 153.123489 | Haldex 85858 | Newstar S-13295 | WHO W88002207 | Other 79377, 79869, 78800, 74295, R923047 | AC Delco 18A176, 18A2426, 1770960, 18A1414
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports and dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Always confirm fitment and torque per Bendix/vehicle manufacturer specifications.
✔ Typical hub nut torque: 450–500 Nm.
✔ Maximum lateral runout: 0.05 mm.
✔ Do not machine or reuse rotor below discard thickness (37 mm).
✔ ABS exciter teeth or tapped provisions vary—verify version needed for ABS integration.
Warranty Information
