DP89 - For parallel arm installation of 8900 Series closers when top door rail is less than 5-3/4 (146 mm) for nonhold open and plunger hold open. When top door rail is less than 6 (152 mm) for friction applications (assuming 5/8 (16 mm) stop dimension).
Manufacturer Resources
Product Specs
- Subcategory:
- Door Closer Parts & Accessories
- Product Group:
- Door Controls
- Product Subgroup:
- Parts and Accessories
- Product Type:
- Closer Plate
- Commercial/Residential:
- Commercial
- Features:
- For Parallel Arm Installation of 8900 Series Closers When Top Door Rail is Less Than 5-3/4" for Nonhold Open and Plunger Hold Open; When Top Door Rail is Less Than 6" for Friction Applications
- Parts and Accessories Type:
- Replacement Parts
- Product Attribute:
- Parts and Accessories
- Product Model:
- DP89
- Product Length:
- 13"
- Arm Specification:
- Non-Hold Open and Plunger Hold Open
- Product Height:
- 4-1/2"
- Product Category:
- Door Controls
- Department:
- Door Hardware
Dormakaba DP89-689 – Frequently Asked Questions
1) When do I need the DP89 drop plate for a Dormakaba 8900 Series closer?
The DP89 is for parallel arm mounting of an 8900 Series closer when the top rail of the door is too shallow to take the shoe directly. For non-hold open and plunger hold open arms, that means a top rail under 5-3/4 inches (146 mm). For friction hold open applications, the cutoff is a top rail under 6 inches (152 mm), assuming a 5/8 inch stop dimension. Measure the top rail first, then decide.
2) Will the DP89 drop plate work with a regular arm or top jamb mounted closer?
No. The DP89 is specified for parallel arm installations of the 8900 Series. Parallel arm mounts the closer body on the pull side face of the door with the arm running back along the door, and it is the mount that runs into the shallow top rail problem this plate solves. A regular arm or top jamb job needs a different mounting accessory, not this plate.
3) How much room do I need on the door for the DP89 closer plate?
The DP89 measures 13 x 4-1/2 inches. You need a flat, unobstructed run of that size on the door face at the top rail area for the plate to land on. On narrow top rail aluminum and hollow metal doors, that 4-1/2 inch dimension is what carries the closer body down clear of the frame stop, so check for glazing stops, vision lite frames, or muntins in that footprint before ordering.
4) Is the DP89 drop plate a replacement part I can order on its own for an existing 8900 closer?
Yes. The DP89 is a replacement part for the 8900 Series and ships separately from the closer, so you can add it to an opening where the closer is already installed and the parallel arm shoe has no rail to bite into. It is a mounting plate only, not a closer or an arm.
5) Which arm types is the Dormakaba DP89 plate rated for?
Non-hold open and plunger hold open arms are what the DP89 is specified with, plus friction applications at the wider 6 inch rail cutoff. If you are running one of those three on a parallel arm 8900, this is the plate.
6) What finishes does the Dormakaba DP89 drop plate come in?
Three finishes on the DP89: 689 anodized aluminum, 693 black, and 695 dark duranodic bronze. These are the standard painted and anodized closer finishes, so match the plate to the closer body and cover you already have on the other openings rather than to the door frame.
7) Is the DP89 drop plate suitable for commercial door closers or just residential doors?
Commercial. The DP89 is a commercial door control accessory for 8900 Series closers, which is the range used on hollow metal, aluminum storefront, and institutional openings where narrow top rails are common.
How fast can I get the Dormakaba DP89-689 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Dormakaba DP89-689 come with a warranty?
Absolutely. The Dormakaba DP89-689 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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