Equipment reference / 2420L / 6580L / 6690L

LiftMaster 2420L, 6580L and 6690L: opener-head package comparison

Compare the listed rails, remotes and wall controls in three GAS Hardware opener-head packages, with exact successor-number limits.

US source scopeReference updated 2026-09-13

Identification details & limits

Reference identifier: 2420L / 6580L / 6690L. Compare each listed detail with the exact product and the source document. Do not submit a personal serial number or access code to this website.

GAS Hardware G1708 rail listingDescription: COMPATIBILITY list: 2420L · checked 2026-09-13 · GAS Hardware
GAS Hardware source: 2420LProduct heading and Description: stated package or model application · checked 2026-09-13 · GAS Hardware
GAS Hardware source: G2778Description: explicit compatibility list: 6690L · checked 2026-09-13 · GAS Hardware
GAS Hardware source: 6580LProduct heading and Description: stated package or model application · checked 2026-09-13 · GAS Hardware
GAS Hardware source: 6690LProduct heading and Description: stated package or model application · checked 2026-09-13 · GAS Hardware

Identification and scope details from the cited sources; each row retains its source locator.
Exact model identity	2420L GAS Hardware G1708 rail listingDescription: COMPATIBILITY list: 2420L · checked 2026-09-13 · GAS Hardware
2420L rail scope	Chain drive; the rail and chain are sold separately. GAS Hardware source: 2420LProduct heading and Description: stated package or model application · checked 2026-09-13 · GAS Hardware
2420L listed package	One L993M remote, one L955W control panel and one 485LM battery are listed. The lighting bulb is separate. GAS Hardware source: 2420LProduct heading and Description: stated package or model application · checked 2026-09-13 · GAS Hardware
Exact model identity	6580L GAS Hardware source: G2778Description: explicit compatibility list: 6580L · checked 2026-09-13 · GAS Hardware
6580L rail scope	Belt drive; the belt rail is sold separately. GAS Hardware source: 6580LProduct heading and Description: stated package or model application · checked 2026-09-13 · GAS Hardware
6580L listed package	One L993M remote, one L957W motion-detection control panel and one 485LM battery are listed. Dual LED lighting and an adjustable camera are described. GAS Hardware source: 6580LProduct heading and Description: stated package or model application · checked 2026-09-13 · GAS Hardware
Exact model identity	6690L GAS Hardware source: G2778Description: explicit compatibility list: 6690L · checked 2026-09-13 · GAS Hardware
6690L rail scope	Belt drive; the belt rail is sold separately. GAS Hardware source: 6690LProduct heading and Description: stated package or model application · checked 2026-09-13 · GAS Hardware
6690L listed package	Two L993M remotes, one L958W control panel, one L979M keypad and one 485LM battery are listed. Motion-activated LED lighting and an adjustable camera are described. GAS Hardware source: 6690LProduct heading and Description: stated package or model application · checked 2026-09-13 · GAS Hardware
Package interpretation	These are three supplier opener-head packages. Listed contents describe each package; they do not prove unrestricted component compatibility or authorize reuse of an existing rail. GAS Hardware source: 2420LProduct heading and Description: stated package or model application · checked 2026-09-13 · GAS Hardware
Separate feature prerequisite	The 6580L description limits its HomeLink feature statement to version 4.0 or later; this is not a general compatibility rule for the other packages. GAS Hardware source: 6580LProduct heading and Description: stated package or model application · checked 2026-09-13 · GAS Hardware
Successor-number boundary	The 6690L title names 87504 without R or -267. Keep that claim separate from 87504-267, 87504R and 87504R-267. GAS Hardware source: 6690LProduct heading and Description: stated package or model application · checked 2026-09-13 · GAS Hardware
Selection check	Confirm the exact model, selected package contents and required rail with the supplier and equipment documentation. These observations establish no current price, availability, warranty entitlement or installation performance. GAS Hardware source: 2420LProduct heading and Description: stated package or model application · checked 2026-09-13 · GAS Hardware

Sources & review dates

GAS Hardware source: 2420LGAS Hardware · US · checked 2026-09-13
GAS Hardware source: 6580LGAS Hardware · US · checked 2026-09-13
GAS Hardware source: 6690LGAS Hardware · US · checked 2026-09-13
GAS Hardware G1708 rail listingGAS Hardware · US · checked 2026-09-13
GAS Hardware source: G2778GAS Hardware · US · checked 2026-09-13

This independent reference preserves the source’s stated scope. It does not report an Anderson installation inspection, product test or safety clearance.

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The cited sources define the product details shown here; comparison does not establish fitment. Anderson’s repair service covers its listed Connecticut communities; this national reference does not imply nationwide service.