Sargent 351 Series Door Closers, Drop Plates & Parts
The Sargent 351 Series is a heavy-duty, surface-mounted closer engineered for maximum durability and effortless control. Certified ANSI/BHMA Grade 1, this powerhouse is designed for high-traffic environments like schools and hospitals. With its fully adjustable power and versatile mounting options—including a range of Drop Plates for narrow frames—the 351 is the premier choice for both new construction and challenging retrofits.
Sargent 351 Series
The Sargent 351 is the industry’s "problem solver" thanks to its versatile "all-in-one" design, featuring a single body size fully adjustable from sizes 1 through 6. This flexibility allows one closer to be used on a wide range of door weights, simplifying inventory and installation.
Built with a high-strength aluminum alloy body, the 351 is tested to exceed millions of cycles. It offers superior control through independent valves for latch, speed, and backcheck. For installations with limited overhead clearance or narrow top rails, we offer specialized 351 Drop Plates that provide a secure mounting surface where standard application isn't possible. Whether facing high-wind exterior perimeters or ADA-sensitive interior doors, the 351 provides a heavy-duty, code-compliant solution for any opening.
Download the complete Sargent 351 Series Catalog for a detailed overview of the 351 Series closer's capabilities. This guide covers all available arm configurations—including Dead Stop (DS) and Hold Open options—as well as architectural finishes and sizing charts to ensure you select the correct closer for your door's width and weight.
Access exploded-view diagrams of the Sargent 351 Series Parts Manual for maintenance and repair. This manual is essential for identifying specific component part numbers for replacement arms, covers, and the closer body, allowing you to perform precise repairs that maintain the closer’s Grade 1 performance and UL fire rating.
Ensure a precision fit with our comprehensive library of Sargent 351 mounting templates. This collection provides exact hole patterns and clearance requirements for every application, including:
Sargent 351 O_RO Regular Arm Template
Sargent 351 P9 Parallel Arm Template
Sargent 351 PS or PSH Heavy Duty Parallel Arm Template
Sargent 351 CPS, CPSH Parallel Heavy Duty Arm Template
Sargent 351 CPS, CPSH Parallel Heavy Duty Arm with Center Hung Pivot Template
Sargent 351 H Standard Friction Hold Open Arm Template
Sargent 351 O , H Arms Top Jamb Mounting Template
Sargent 351 OT , HT Arms - Pull Side Track Template
Sargent 351 POT, POTB, PHT, PHTB - Push Side Track Template
Sargent 351 P10, PH10 Heavy Duty Parallel Arm Template
Sargent 351 P10 Parallel Arm with 1530 or 690 Holders or Stops Template
Sargent 351 Series
Shop our full range of complete Sargent 351 assemblies, including the closer body, arm, and all necessary mounting hardware. We offer configurations for every application, from standard Regular and Parallel Arms to specialized Heavy-Duty Dead Stop (DS) arms. These complete kits are ready for professional, out-of-the-box installation on wood or metal doors.
Sargent 351 Series Drop Plates
Adapt your door closer with genuine Sargent 351 accessories. This subsection features essential Drop Plates (such as the 351-A, 351-B, and 351-L) designed to solve mounting challenges on narrow top rails or low-ceiling frames. You’ll also find replacement arms, covers, and screw packs to keep your existing closers in peak operating condition while maintaining their Grade 1 certification.
351 Series Parts
Extend the service life of your existing hardware with our inventory of genuine Sargent 351 parts. We stock essential maintenance components including replacement arms, covers, Thru Bolts, and Screw packages. Using authentic Sargent parts ensures your closer maintains its Grade 1 certification and continues to operate with the precision and safety intended by the manufacturer.