8355W replacement parts
This model number is discontinued. Available replacement parts are listed below.
Replacement Parts
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Installation & Support
general documents
keyboard_arrow_uparchitect documents
keyboard_arrow_upHow to Program LiftMaster Model 877LM Wireless Keyless Entry Using the LEARN Button
How to Test the Safety Reversal System of Your LiftMaster Garage Door Opener
info
California Residents:
Proposition 65 WARNING
Need help?
Browse installation guides, product manuals, FAQs, videos and tutorials, or ask us a question. Click here.
Time to upgrade?
Shop our latest garage door openers and choose from the best in smart home and security features. Click here.
Find a Dealer
Get the peace of mind that only comes with working with a LiftMaster qualified dealer. Click here.
