*Actual product and finish may vary

LCN 4040XP-3071 Cast Iron Cylinder Assembly

The LCN 4040XP-3071 is the core replacement cylinder assembly for the industry-leading LCN 4040XP heavy-duty door closer. Crafted from incredibly durable cast iron, this assembly serves as the functional heart of the closer, housing the heavy-duty rack-and-pinion mechanism and hydraulic fluid necessary for smooth, controlled door operation.

Designed as a genuine OEM replacement part, this cylinder allows facility managers and installers to easily repair or upgrade existing 4040XP closers without needing to purchase an entirely new hardware kit. Its completely non-handed design ensures it can be installed on both left-hand and right-hand swinging doors with ease.

Certifications:
Grade 1 - ANSI A156.4, UL 10C, ADA, 100 hour salt
spray, meets BAA - Buy American Act

Body construction
Patent-pending positive stop
Patent-pending regulation valve indicators
Independent speed adjustments
QR code for instructions and support
Cast iron body
Full complement bearing
1 1⁄ 2" diameter piston
Double heat treated
pinion journal

Fluid:
All weather liquid X fluid

Handing: Non-handed

Templating: Peel-n-Stick templates -
2 1 ⁄ 4 " x 5" mounting hole pattern
Size: Adjustable spring size 1-6, includes LCN Green Dial

Warranty: 30 years

Cover: Redesigned snap-fit plastic cover (PC) with
improved retention fit, standard
Metal Cover (MC), optional

Fasteners: Self reaming and tapping screws (SRT)

Mounting: Hinge (pull side), top jamb (push side), parallel
arm (push side)

Arms: Regular arm

Finishes:
689 Aluminum
693 Black
695 Dark bronze