2239045 2-inch bore Brake Master Cylinder – Fits Workhorse RV and Industrial Equipment Bexar Pro Components: Precision Parts for Uncompromising Performance. Ensure safe braking control for your Motorhome, RV, or Commercial Walk-In Van with this brand new Brake Master Cylinder from Bexar Pro Components. Engineered with a powerful 2-inch bore size, this master cylinder is a direct replacement for critical braking systems found across the Workhorse W-Series and associated industrial chassis platforms. Trust in quality that meets or exceeds OEM specifications for casting number 2239045. Specifications Bore Diameter: 2-inch bore size Outlet Size: 1/2″-20 INV and 9/16″-18 INV Included Sensors: Differential Pressure Switch & Fluid Level Indicator Application: Workhorse W16-W25 / Class A RV / Industrial Chassis Technical Resources: Hydro-Max Technical Manual (PDF) Verified Casting Numbers • 2239045 ⚠ CRITICAL: Verify Specifications To ensure safety, verify that this 2-inch bore size matches your existing unit exactly. Brake master cylinder reservoir material and height may vary, but the core fit and hydraulic function remain identical. IMPORTANT: Adaptors on the outlet ports may be needed to fit your specific vehicle’s existing brake lines, as this casting number was utilized across multiple heavy-duty assemblies. Expert Installation & Field Note Drawing on our shop experience specializing in heavy-duty brakes since 1985, we emphasize that pushrod alignment is vital for Class A RV and Workhorse chassis. Always bench bleed the master cylinder before installation. Ensure the pushrod is perfectly centered; in 2-inch bore systems, even a slight misalignment can lead to premature seal wear under high-pressure fleet and recreational use. SKU: 10804276-BEX Official Master Cylinder Installation Guide Bexar Pro Components | San Antonio, TX | Since 1985
