LiftMaster / Accessory reference

LiftMaster 878MAX

LiftMaster 878MAX: The supplier identifies 878MAX as replacing 877MAX.

US source scopeUpdated 2026-09-12Independent Anderson reference

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Manufacturer identifier: 878MAX. Keep every character when comparing it with your label or paperwork. A similar number does not establish the same component.

Denco supplier reference: RC 878MAXh1; span.sku; Description replacement, general compatibility, feature-specific2006 condition and keypad/battery bullets · checked 2026-09-12 · Denco

Values apply to the exact identifier and scope in the cited source.
Supplier-stated detail	The supplier identifies 878MAX as replacing 877MAX. Denco supplier reference: RC 878MAXh1; span.sku; Description replacement, general compatibility, feature-specific2006 condition and keypad/battery bullets · checked 2026-09-12 · Denco
Supplier-stated detail	General compatibility is stated for LiftMaster openers manufactured since January 1993; one-button closing separately requires manufacture since 2006. Denco supplier reference: RC 878MAXh1; span.sku; Description replacement, general compatibility, feature-specific2006 condition and keypad/battery bullets · checked 2026-09-12 · Denco
Supplier-stated detail	Listed features include Security+ 2.0 rolling code, temporary passwords, backlighting and an included 9 V battery. Denco supplier reference: RC 878MAXh1; span.sku; Description replacement, general compatibility, feature-specific2006 condition and keypad/battery bullets · checked 2026-09-12 · Denco
Selection limitation	The older product number in the source link does not identify the current keypad. The one-button-close date is not the threshold for all functions. Denco supplier reference: RC 878MAXh1; span.sku; Description replacement, general compatibility, feature-specific2006 condition and keypad/battery bullets · checked 2026-09-12 · Denco

Documented fitment & exclusions

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No equipment or component pairing is verified in this published reference. Match the exact equipment with LiftMaster official support before selecting a component.

Direct replacement paths

No direct successor for 878MAX is verified in this reference.

Earlier numbers this item is listed to replace

878MAX replaces 877MAX only within the following source scope.
Denco names 878MAX as a replacement for 877MAX. One-button closing separately requires an opener manufactured since 2006. This feature date is not the date threshold for every keypad function.
Applies only within this source scope
- Market: US
- replacement-purpose: Replacement of the exact named remote or keypad; installed receiver and required functions must be checked.
- installed-opener-scope: LiftMaster garage-door opener manufactured since January 1993.
- Denco supplier statement for the US reference catalog; confirm the installed equipment and required functions. This is not a physical fitment test.
- One-button closing separately requires an opener manufactured since 2006. This feature date is not the date threshold for every keypad function.
- Denco supplier reference: RC 878MAXh1; span.sku; Description replacement, general compatibility, feature-specific2006 condition and keypad/battery bullets · checked 2026-09-12 · Denco

A direct replacement statement does not establish reverse interchangeability, a kit equivalent or a later replacement chain.

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Selected: 878MAX · Read its reference. Selection identifies a record; it does not confirm fitment.

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Sources & scope

Denco supplier reference: RC 878MAXDenco · US · checked 2026-09-12

Anderson prepared this reference from the listed evidence. Source statements are not an Anderson installation inspection or independent product test. Official documents stay on their publisher’s website.

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This is an independent Anderson reference. Manufacturer names identify the equipment and do not imply affiliation or authorized-dealer status. Anderson provides repair service in its listed Connecticut communities.

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