Product Description
11993X – BENDIX MASTER CYLINDER (CAST IRON, GM & INTERNATIONAL 1980–1990)
PART NUMBER(S):
Fleet Products: 11993X (Remanufactured) | OE: Bendix 11993, RAYBESTOS MC116702, MC252730, MC39528, Euclid E-3883, 602-590, 174126, 48175H, 48175R91, 8QE214, F661, F76151, M900001, MC661, R413883, RE661, S-4929
DESCRIPTION:
Model: Bendix 011993-BW / 011993BXW – Dual Outlet Master Cylinder (Remanufactured)
Vehicles: International and GM medium-duty trucks and buses, including:
International: S1955, S1954, S1854, S1853, S1824, S1754, S1724, S1723, S1654
GMC: P6000, P60, B6000, C7000, C6000
Chevrolet: P60, B60, C60 Kodiak, C70, C60
• Bore Diameter: 1.75″ (44.45 mm) straight bore design
• Body Material: Cast iron for heavy-duty service life
• Reservoir: Aluminum, single type, with cap included
• Mounting: 4-hole flange configuration
• Outlets: Dual port – Primary 9/16″–18 inverted flare, Secondary 1/2″–20 inverted flare
• Booster: Not included
• Pushrod: Not included
• Bleeder Hoses: Not included
Applications: Engineered for GM and International vocational trucks and buses built from 1980–1990. Widely used in medium-duty fleets including delivery, utility, school bus, and municipal chassis applications. Suitable for both in-service fleet maintenance and vintage restoration projects.
HYDROMAX (1988-89 ONLY) BE. 2770454X
PUMP & MOTOR BE. 2771494X, 18006974X
DELCO DUAL POWER SYSTEM:
HYDRAULIC SECTION DEL. 18001047X, 18001810X
VACUUM BOOSTER SECTION DEL. 18003144X
CALIPERS (BY AXLE WEIGHT)
2.60" TWIN PISTON SYSTEM (FRONT OR REAR) (W/STEEL PISTONS) BE. 55245
2.60" TWIN PISTON SYSTEM (FRONT OR REAR) (W/PHENOLIC PISTONS) BE. 55314
2.88" TWIN PISTON SYSTEM (REAR AND/OR FRONT) BE. 55250
CROSS-REFERENCE(S):
011993BXW, 10-8001, 100-2787, 116702, 12306, 13-8001, 130.80016, 130.82002, 15500481, 15601554, 174-866, 18030526, 18M284, 2302-82002, 230282002, 3135082, 355-47214, 35547217, 39528, 65-M39528, 745-011993, 83-58002, E13587007, E150258, E7799, F108144, F116702, F123538, M123538, M39528, M8001, M900490, M92002, MC116702, MC252730, MC39528
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports, dimensions, and fitment match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Bench-bleed master cylinder before installation to prevent air lock
✔ Confirm compatibility with dual-reservoir brake system configurations
✔ Use only DOT-approved brake fluid per OEM specification
✔ Verify pushrod depth and length match OE requirements
✔ Torque all flange bolts to manufacturer specification evenly to prevent distortion
SOLD AS REMANUFACTURED | CORE RETURN REQUIRED
Built to OEM standards | thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
SUPPORT & ORDERING
For technical support, installation guidance, or to confirm fitment, Call: 1-877-243-0442 | Email: sales@fleet-products.com
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