Sargent CB351 Replacement Door Closer Body | Powerglide® 351 Series

The Sargent CB351 Replacement Closer Body is the professional-grade solution for restoring high-traffic door openings without the cost of a full hardware replacement. This unit is specifically designed to replace the hydraulic core of any Sargent 351 Series surface-mounted closer. Engineered for extreme durability, it features a heavy-duty one-piece 14% silicon aluminum alloy die-cast body that provides superior strength and wear resistance in demanding institutional and commercial environments.

By utilizing the CB351 replacement body, you can maintain your existing arms and covers while upgrading to modern, high-performance hydraulics. This model features adjustable spring power (Sizes 1-6) and is pre-filled with all-weather hydraulic fluid, ensuring consistent operation in extreme temperatures without the need for seasonal valve adjustments. Note: This specific model (CB351) does not include the delayed action feature and replaces the legacy part number 13-351.

Professional Grade Features

• Cost-Effective Restoration: Allows for the replacement of a leaking or worn hydraulic body while reusing existing Powerglide® series arms and covers.
• Standardized Mounting: Features the classic 9" x 2-1/2" screw hole pattern, ensuring a direct fit for existing 351 series installations.
  
• Precision Valve Control: Includes separate brass valves for independent regulation of closing speed, latching speed, and backcheck intensity.
• Superior Construction: Built with a 1-1/2" diameter piston and a heat-treated full closed rack and pinion for maximum control and longevity.
  
• Code Compliance: ANSI/BHMA Grade 1 certified and UL/cUL listed for use on fire-rated doors when installed as part of a complete 351 assembly.
  
• Durable Finish: Available in a high-quality Aluminum Enamel (EN) finish to match existing hardware sets.
  

Technical Specifications

Installation & Compatibility

The Sargent CB351 Replacement Body is non-handed, making it suitable for both left and right-hand door swings. It is fully compatible with all standard Sargent 351 series arms, including Universal (UO), Parallel (P10), and Compression Stop (CPS) configurations.

When installing on wood doors, it is highly recommended to use Sargent thru bolts to ensure the new body remains securely anchored under heavy use. This replacement body provides a sustainable way to extend the life of your facility's door hardware while ensuring continued compliance with ADA accessibility standards.