110500 Trailer Spring Parking Brake Control Valve for Sealco 110500X 065438

Product Overview

The 110500 trailer spring parking brake control valve governs the release and application of spring brake chambers on commercial trailers and semi-trailers. Engineered as a direct replacement for Sealco 110500X valves, it restores proper parking brake modulation and emergency release function. This 110500 trailer spring parking brake control valve suits fleet maintenance and owner-operator repairs where reliable pneumatic control is critical.

Key Features & Performance

• Precise graduated control of spring brake application and release
• Direct interchange with Sealco 110500X and cross-references 065438
• All-metal body with corrosion-resistant plating for long service life
• Pre-set shuttle valve and spring rate maintain consistent cracking pressure
• Standard 1/4" NPT ports simplify plumbing into existing air systems
• Meets DOT performance requirements for parking brake control valves

Fitment & Compatibility

• Replaces Sealco 110500X and Haldex/other equivalents using part 065438
• Fits most spring-parking-brake-equipped trailers: dry vans, reefers, flatbeds, tankers
• Compatible with standard tractor-to-trailer air supply and parking brake plumbing

Common Uses

• Replacing a leaking or sticking parking brake dash valve on a commercial trailer
• Repairing the spring brake control circuit on a converter dolly or tag axle
• Preventative maintenance replacement during air system overhauls

Technical Specifications

• Part Number(s): 110500 (replaces Sealco 110500X, 065438)
• Valve Type: Spring brake control / parking brake valve
• Port Size: 1/4" NPT
• Body Material: Zinc-plated steel

Frequently Asked Questions

Q: Will this valve work as a direct replacement for the Sealco 110500X? A: Yes, it is functionally identical and fits the same mounting footprint and plumbing layout, controlling the spring parking brake circuit exactly as the original valve does.

Q: Can this valve be used on a truck tractor instead of a trailer? A: It is designed for the trailer spring parking brake system; using it on a tractor may require different plumbing logic and is not recommended unless confirmed by the tractor OEM.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.