Ensure reliable, heavy-duty braking control for your fleet 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 in Ford F650/F750 Super Duty trucks, F53 Motorhome chassis, and F59 Commercial Stripped chassis, as well as specialized industrial equipment. Trust in quality that meets or exceeds OEM specifications for casting number 2239045.

Verified Casting & Cross-Reference Numbers

• 2239045 (Primary Casting)
• Ford OE: F81Z2005AD, F8HZ2140A, F8HZ2140AA, 8U9Z2140A
• Ford OE: DU9Z2140A, DU9Z2140B, DU9Z2140C

⚠ CRITICAL: Verify Specifications

To ensure safety in heavy-duty and RV applications, 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 brake lines, as this casting number was utilized across multiple Ford assembly configurations.

Expert Installation & Field Note

Drawing on our shop experience specializing in heavy-duty brakes since 1985, we emphasize that pushrod alignment is vital for Ford Super Duty and motorhome 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 the high-pressure demands of fleet and vocational operation. For F53 RV chassis, check clearance for the reservoir height before final mounting.