Description
55251 – HYDRAULIC 2-PISTON CALIPER (2.50” DAYTON WALTHER) – UNIVERSAL MOUNT
PART NUMBER(S):
Fleet Products: 55251 (New) | Replaces OE: Automann 158.155251A, 158155251, 158155251A | Bendix 55251A, 55251, 55251R, E14684106, E146841062, BEN-55251 | Euclid E11117, E11117X, E-11117 | Meritor 60050150, 60050150X, R421117, R4255251 | Ford E4HZ2B120A, E6HZ2B120B | GMC 15510024, 15574500, 15619099, 15615550, 15581552 | Haldex 85362 | Centric 14180007 | Dayton 604905, FRC7800N | Raybestos RWC7800 | Allied Signal 55251, R00055251
DESCRIPTION:
Model: Dayton Walther 2.50" Twin Piston 4 HOLE METRIC THREAD
Vehicles: Isuzu FTR - 1996-2002 (Front & Rear), Isuzu FVR - 1996-2002 (Front), Chevrolet, Ford, GMC truck platforms (1979-2008)
• Piston: 2.50" twin piston
• Mounting: universal (LH / RH)
• Piston Center Spacing: 85.7 mm (3.375")
• Caliper Width: 152.4 mm (6.000")
• Caliper Height: 76.2 mm (3.000")
• Mounting Hole Spacing: 149.2 mm (5.875")
• Overall Mount Span: 196.9 mm (7.750")
• Mount Offset / Center Spacing: 34.9 mm (1.375")
• Mounting Bolt Thread: 5/16"-18
• Hydraulic Port / Bleeder: 7/16"-24 UNF
• Brake Type: Hydraulic disc
• Material: High-strength steel
• Mount Type: Universal
• Casting Reference Numbers: 472, 22602
Brake pads: D224 FPK26-224-02
Applications: Used in Chevrolet, Ford, and GMC trucks that require a 2.50" Dayton-style twin piston caliper. Common in hydraulic brake service for fleet and utility vehicles.
CROSS-REFERENCE(S):
M15885, 44001N, 600-905F, 8004N, 104026, 3135080, 8004, BER-55251.55251, BW055251, BW 055251, BW 55251, BW55251, BX55251, BXR55251, CR120313, E6HG2B120B, E6HZ-2B120-B, R4211117, RC6575, RH55251LX, RWC-7800, S-A916, SA916, TDAR4255251, WA55251K, WAA609, 60050261, 600905F, 600905G, E4244RM, E4244X, RC7800, RH55251X, SDC2429002, 2429002, R55251E1, ZJC55251, S13845, BW055251, 472, FPK26-224-02, 20698, 782, R11117, E4244, FRC7800, FRC7800SS, RWC7800, R18714, R18715, 823560050150, ATI60050150, E146841062BXW, EUE11117, TDA60050150
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:
✔ Verify inlet port threading (7/16"–24) matches original caliper
✔ Ensure casting number 472 matches removed core
✔ Use correct pad (D224)
✔ Always flush hydraulic lines thoroughly before installing new caliper
✔ Torque all mounting bolts to OEM spec during installation
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