Somfy 70mm Octagonal LT50 Crown (9012328)
Somfy 70mm Octagonal LT50 Crown (9012328)
Ships in 1-2 business days. US shipping $15 flat.
Returns: 30 days from delivery, unused and in original packaging, with an RMA. A 35% restocking fee applies and the customer pays return shipping, unless the item is defective or we made an error. Custom and engraved items can be returned only if defective. Full return policy
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Somfy 70mm Octagonal LT50 Crown -- centers your LT50 motor in 70mm octagonal tube
A genuine Somfy crown adapter set that fits LT50 tubular motors to 70mm octagonal roller tube. The crown slides over the motor head and keeps the motor centered and turning true inside the tube. Somfy backs it with a 5-year warranty.
Specifications
| Part type | Crown adapter set |
| Fits | 70mm octagonal tube, LT50 motor platform |
| Somfy name | 70 OCTAG 500S CROWN KIT |
| Warranty | 5 years |
| Genuine part | Yes -- Somfy 9012328 |
Compatible with: LT50 exterior and standard motors on 70mm octagonal tube, including Altus RTS, Maestria RTS, Sunea RTS CMO, Orea RTS and standard 4-wire CMO motors. Pair it with the LT50/60 Octagonal 70mm Drive (9761002).
Official Somfy documentation
- 500 Series – Databook (PDF)
- 500 Series Crowns and Drives – Motor Catalog pg 52 (PDF)
- 70mm Octagonal LT50 Crown – Somfy Pro Product Page
Sold by ShadeMotorsDirect -- an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.
Common questions
What is the 70mm Octagonal LT50 Crown?
It is a genuine Somfy crown adapter set for LT50 tubular motors on 70mm octagonal roller tube. The crown slides over the motor head and keeps the motor centered so it turns true inside the tube.
Which tube does this crown fit?
Somfy sizes it for 70mm octagonal tube. Check your tube profile before you order. 60mm octagonal tube uses the LT50 Octagonal 60mm Crown (9707025), and DS70 round tube uses the DS 70 LT50 Crown (9707034).
Which motors use it?
Somfy lists 61 compatible LT50 motors, including Altus RTS, Maestria RTS, Sunea RTS CMO, Orea RTS and the standard 4-wire 530R2 CMO (1045017).
Do I need a drive wheel too?
Yes. The crown sits on the motor head and the drive sits on the output shaft. Pair it with the LT50/60 Octagonal 70mm Drive (9761002) and the Drive Stop and Screw (9910004), or buy the Octagonal LT50 70mm Crown and Drive Set (9012234) to get crown and drive together.
What warranty does it have?
Somfy backs this crown with a 5-year warranty. For installation in your home, Somfy recommends working with a Somfy professional.
Couldn't load pickup availability
Replace a worn crown or drive, or order the right set for a new roller.
Match the set to your motor head and your tube size.
12- 1Crown Grips the inside of the tube.
- 2Octagon profile Matches your 70mm octagonal tube.
Replacing one
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1
Take the shade down
Cut power and lift the roller out of its brackets.
-
2
Pull the motor
Slide the motor out of the tube.
-
3
Swap the part
Pull off the worn crown or drive and fit the 70mm Octagonal LT50 Crown.
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4
Slide it back
Insert the motor drive end first and rehang the shade.
Not sure of your tube? Send us a photo of the tube end and your motor label. We'll confirm before you order. Ask us
Starting new
-
1
Check your tube
Measure across the outside of the tube end and note the shape: round, octagonal or a brand profile.
-
2
Fit the crown
Slide the crown onto the motor until it seats against the head.
-
3
Fit the drive
Push the drive onto the output shaft until it locks.
-
4
Slide the motor in
Insert the motor into the tube, drive end first.
Planning a new install? Send us the window size and a photo. We'll build the parts list with you. Ask us
Motors the 70mm Octagonal LT50 Crown works with
Somfy lists these motors as compatible with part 9012328.
Somfy backs the 70mm Octagonal LT50 Crown for 5 years. We handle the claim.
Somfy warranty on the 70mm Octagonal LT50 Crown, part 9012328.
- What Somfy covers
- Defects in materials and workmanship, for 5 years from purchase.
- If it fails
- Email us your order number. We arrange the replacement with Somfy.
- Where it comes from
- ShadeMotorsDirect is an authorized Somfy distributor. You get the US version, new in Somfy packaging.
- Returns
- Unopened items in original packaging. Ask us for an RA number before you ship.
- Questions
- Call or chat, 8:00 AM - 7:30 PM ET.



