18040251 Multi-Port Cast Body Brake Master Cylinder

Product Overview
The 18040251 Multi-Port Cast Body Brake Master Cylinder is cast with several fluid outlets arranged for dual or multi-circuit systems. The multiple ports let the cylinder feed separate front and rear circuits, or additional lines when required by the original design. The cast body keeps the bore and port positions rigid under pressure.

Core Functions
1. Multiple fluid outlets – supports dual-circuit or multi-line plumbing without extra adapters.
2. Rigid cast body – maintains precise bore and port alignment under operating pressure.
3. Original port thread sizes – matches the 18040251 specification for direct hose connection.
4. Balanced circuit design – ports are positioned to keep front and rear circuit volumes correct.

Purchasing Motivations
1. One casting covers vehicles that need more than two outlets.
2. No need for aftermarket multi-port adapters that can leak.
3. Distinct multi-port appearance reduces warehouse mix-ups with single-circuit units.

OEM/ODM Services
Branded packaging and carton marking are available. Changes to the number of ports, thread sizes or internal circuit balance require engineering review and validation.

Customer Pain Points Addressed
1. Two-port cylinders force the use of T-fittings – this multi-port body eliminates them.
2. Soft housings can distort and change port alignment – the cast body stays true.
3. Wrong thread sizes cause leaks or cross-threading – original sizes are retained.

FAQ
Q1: How many outlets does the 18040251 Multi-Port Cast Body Brake Master Cylinder have?
It is cast with multiple outlets; the exact count matches the original dual or multi-circuit layout.
Q2: Can I plug unused ports?
Only if the original design allowed it; otherwise keep all circuits connected as specified.
Q3: Are the port threads the same as common aftermarket fittings?
They follow the OE thread standard for 18040251; always verify before connecting hoses.