Marantec 158866 Housing Set for Synergy LC Series Openers
Marantec 158866 is the replacement housing set for the Marantec Synergy LC Series opener head. The housing protects the operator's internal components from dust and incidental contact while keeping the lens cover, LED cluster area, and exterior cover arrangement properly aligned. It is commonly ordered when the original Synergy LC cover is cracked, broken, missing, or damaged during service. Although Synergy LC is part of the broader Marantec Synergy family, its housing parts are not the same as Synergy 200 or Synergy 300 cover sets. This part should be ordered by the Synergy LC model family and the 158866 part number.
Common Replacement Reasons
- Cracked or missing Synergy LC housing
- Housing will not stay seated
- Lens cover area damaged with the main cover
- Opener head needs exterior cover restoration
Compatible With
- Marantec Synergy LC Series garage door openers
- Synergy LC opener heads that specify housing set 158866
- Synergy LC units using lens cover 158867 as the matching cover component
- Not for Synergy 360, 370, or 380 housing applications that commonly reference 122947
- Not for Synergy 260, 270, or 280 housing and lens parts
Features and Specifications
| Manufacturer | Marantec |
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| Product Type | Garage door opener housing set |
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| Part Number | 158866 |
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| Application | Synergy LC Series opener head housing |
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| Compatible Operator Type | Residential garage door opener |
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| Common Model Family | Synergy LC Series |
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| Related Lens Cover | 158867 |
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| Notes | Separate from Synergy 300 housing set 122947 |
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Also Known As / Related Part Numbers
- 158866
- MAR-158866
- Marantec 158866 housing set
- Marantec Synergy LC housing set
- Housing set for Synergy LC
- Related lens cover: 158867
- Related Synergy LC control box: 158868
- Related gearmotor reference for select LC applications: 102276
- Related LED cluster components for Synergy LC models
Technician Note
Synergy LC parts should stay with Synergy LC. Similar-looking Synergy housings can have different cover geometry, screw locations, lens fitment, and internal component clearance.
Important Ordering Warnings
- Not interchangeable with Synergy 300 housing set 122947
- Does not include control electronics unless specifically stated by supplier
- Confirm Synergy LC model before ordering
Before Ordering Checklist
- Confirm the opener label says Synergy LC
- Check whether the lens cover also needs replacement
- Inspect LED cluster fitment and wiring before reassembling the housing
- Verify the old housing mounting points are not broken on the opener frame
- Do not substitute Synergy 300 housing set 122947
Professional Advisory
Unplug the opener before cover removal. If there are signs of overheating, moisture inside the housing, or damaged wiring, have the opener inspected before installing a new cover.
Product Questions and Answers
What models use Marantec 158866?
Marantec 158866 is the housing set for the Marantec Synergy LC Series opener family.
Is 158866 the same as the lens cover?
No. 158866 is the housing set. The Synergy LC lens cover is commonly listed separately as 158867.
Can this fit Synergy 300 openers?
No. Synergy 300 housing commonly references 122947. Use 158866 only when the opener is confirmed as Synergy LC.
Does the housing set include electronics?
No. This is a housing service part, not a control board, motor, LED cluster, or complete opener.
What should I inspect with the housing?
Inspect the lens cover, LED cluster, control box area, and housing clips or screws before reassembly.
