Product Description
LCN 4040 Delayed Action Cylinder in Aluminum
Replacement Delayed Action Cylinder for the LCN 4040 Series commercial door closer. Genuine LCN OEM part — matches factory specifications for fit and performance. If your 4040 closer needs a new Delayed Action Cylinder, this is the correct part.
Pro-Tip from Our Locksmiths: Cylinder assemblies control the speed valves — if your closer is slamming or creeping, the cylinder assembly is usually the fix. Full body replacement is overkill when it's just the hydraulics.
| Brand | LCN (Allegion) |
| Part Number | 4040-3071DEL-AL |
| Series | LCN 4040 |
| Component | Delayed Action Cylinder |
| Finish | Aluminum |
| Fire Rating | Non Fire Rated |
| Warranty | 3 years limited manufacturer's warranty |
- Genuine LCN OEM replacement for 4040 Series closers
- Finish: Aluminum — matches factory original
- Ships brand new in LCN packaging
- Compatible with LCN 4040 closer bodies
Works With: LCN 4040 Series door closers. For complete closers, covers, and other replacement parts, search LCN 4040 on our site.
Free Expert Support — As an authorized LCN distributor, Lock Depot provides full manufacturer warranty coverage and same day shipping on most orders. Call (877) 365-5625 for personalized help.
Image shown is representative of the product line. Actual finish, trim, and configuration may vary by SKU.
Related guide: Which LCN Closer for a Heavy Commercial Door That Slams Shut — sizing the spring on the 4040XP, regular vs hold-open arm, tuning sweep and latch speed, and the delayed-action cylinder for ADA doors.
Warranty Information
Limited lifetime warranty on closer bodyProduct Videos
Custom Field
Series 4040
Finish Aluminum
Trim Delayed Action Cylinder
Mount Type Surface
Monitoring Non-Handed
Mode Single Door
Fire Rated Non Fire Rated
