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Valid 5/3/18 through 6/29/18, only online only at LiftMaster.com. Coupon code is limited to the following products: 387LM, 374UT, 375UT. LiftMaster.com reserves the right to remove, add or change items on this promotion without prior notice. Other restrictions may apply. While supplies last.

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Straight Door Arm

4178B0034B

Straight Door Arm

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$6.90 USD PLUS SHIPPING AND TAX

This part replaces the following legacy part #'s : 178B33, 178B34, 12385041783

4178B0034B is a straight door arm replacement kit. The straight arm when paired with the curved arm, connect the garage door to the garage door opener trolley. This straight door arm section is compatible with most LiftMaster® residential garage door openers. Check the manual for model number before ordering to ensure compatibility.

 

Genuine LiftMaster® replacement part.


Return Policy

California Residents: Proposition 65 WARNING

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