Marantec 122947 Housing Set for Synergy 300 Series Openers

Marantec 122947 Housing Set for Synergy 300 Series Openers

Marantec 122947 is the replacement housing set for select Marantec Synergy 300 Series garage door opener heads. The housing is more than a cosmetic cover. It helps keep dust and debris away from internal components, supports the finished appearance of the opener, and helps maintain the proper cover arrangement around the LED lighting area. It is most commonly tied to Synergy 360, Synergy 370, and Synergy 380 models. Because Marantec Synergy opener families share similar naming but not always the same enclosure parts, this housing should be ordered by part number and opener series rather than by brand name alone.

Common Replacement Reasons

• Cracked or missing opener cover
• Damaged housing after impact or service
• Dust entering the opener head
• Customer wants to restore the finished appearance of a Synergy 300 operator

Compatible With

• Marantec Synergy 360 garage door openers
• Marantec Synergy 370 garage door openers
• Marantec Synergy 380 garage door openers
• Synergy 300 Series opener heads using housing set 122947
• Not for Synergy 260, 270, or 280 unless a parts diagram specifically calls for 122947
• Not for Synergy LC housing parts that reference 158866 or 158867

Features and Specifications

Also Known As / Related Part Numbers

• 122947
• MAR-122947
• Marantec 122947 housing set
• Marantec Synergy 300 housing set
• Housing set for Synergy 360
• Housing set for Synergy 370
• Housing set for Synergy 380
• Related Synergy 300 LED light cover set: 116350
• Related Synergy 300 LED strip set: 101161
• Related Synergy 300 LED extension kit: 123174
• Related Synergy 300 LED holder: 98668

Technician Note

Before ordering a housing set, look at the model label on the opener head. Synergy 300, Synergy 200, Synergy Solo, and Synergy LC parts can look similar in photos but use different housings and lens covers.

Important Ordering Warnings

• Not a control board or motor assembly
• Not for every Synergy opener family
• Check for water or heat damage before replacing the cover

Before Ordering Checklist

• Confirm the opener is Synergy 360, 370, or 380
• Check whether the old housing damage also affected the lens covers or LED holder
• Verify the opener head mounting and cover screw locations are intact
• Do not order by appearance only; match the part number when possible
• Keep any reusable screws or clips from the original housing until the new part is installed

Professional Advisory

Unplug the opener before removing covers. If housing damage was caused by overheating, water intrusion, or electrical arcing, have the opener inspected by a qualified technician before replacing cosmetic parts.

Product Questions and Answers

Which models use Marantec 122947?

Marantec 122947 is commonly used as a housing set for Synergy 300 Series openers, including Synergy 360, Synergy 370, and Synergy 380.

Is this housing set for Synergy 200 models?

No. Synergy 200 Series models use different housing and cover parts. Do not order 122947 for Synergy 260, 270, or 280 unless a parts diagram confirms it.

Does the housing set include electronics?

No. This is a housing/enclosure service part, not a control board, motor, or LED kit.

Why replace the opener housing?

Housing parts are replaced when the original cover is cracked, missing, discolored, or no longer protects the internal components properly.

Should I check the LED covers too?

Yes. If the housing is damaged, inspect the Synergy 300 light cover set and LED holder area before reassembling the opener.