Product Description
11892X – BENDIX MASTER CYLINDER (CAST IRON, GM MEDIUM-DUTY 1979–1990)
PART NUMBER(S):
Fleet Products: 11892X (Remanufactured) | OE: Bendix 11892, RAYBESTOS MC39457, EUCLID E-7804
DESCRIPTION:
Model: Bendix 011892BXW – Dual Outlet Master Cylinder (Remanufactured)
Vehicles: GM medium-duty trucks and step vans, including Chevrolet and GMC platforms:
Chevrolet P60 (1984), P40 (1980–1984), C70 (1980–1985), C60 (1980–1987), C50 (1980–1982, 1987)
GMC C7000 (1980–1985), C6000 (1979–1990), C5000 (1980–1987), B6000 (1980–1987), P4500 (1982–1987), C6000 TopKick (1990)
• Bore Diameter: 1.75″ (44.45 mm)
• Body Material: Cast iron, heavy-duty construction
• Reservoir: Aluminum with included cap
• Mounting: 4-hole flange, hole diameter 0.433″
• Outlets: Dual port design – Primary 9/16″–18 inverted flare, Secondary 1/2″–20 inverted flare
• Pushrod: Not included
• Sensor Port: Not included
Applications: Designed for GM gasoline and diesel V8-powered medium-duty trucks built between 1979 and 1990. A reliable direct replacement for brake system overhauls in vocational, municipal, and fleet-use trucks. Commonly found in step vans, grain haulers, and school buses that remain in service or restoration fleets.
DUAL POWER-HYDRAULIC SECTION 18001047X
DUAL POWER-VACUUM SECTION 18001072X
HYPOWER (ALL YEARS) 18001810X
PUMP & MOTOR 18006974X
HYDROVAC 2512065X, 2512066X, 2513812X
CALIPERS, FRONT AND REAR AXLE:
2.50" TWIN PISTON DAY. 55251
2.88" TWIN PISTON BE. 55250
CROSS-REFERENCE(S):
011892BXW, 100-2773, 11892R, 13-8000, 130.80013, 130.80016, 174-682, 18M246, 2035459, 2233, 602153, 745-011892, 83-52010, 83-52013, BX2233590, E-7804, E13585021, E150256, EUCLID E-7804, F102324, F108839, F119399, F97592, M-90013, M39457, M900446, MC119399, MC252540, MC39457, R417804, RAYBESTOS MC39457
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 mounting to avoid air entrapment
✔ Match reservoir style to original OE configuration
✔ Confirm outlet thread sizes and port orientation before install
✔ Torque mounting bolts evenly to avoid flange distortion or leaks
✔ Use DOT 3 or DOT 4 brake fluid as specified by GM OEM requirements
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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