Equipment reference / 6608CD / 8808CB-P

Chamberlain eight-foot extension kits: 6608CD and 8808CB-P

Distinguish the full-chain and belt-drive extension kits without assuming every Chamberlain opener accepts either kit.

US source scopeReference updated 2026-09-13

Identification details & limits

Reference identifier: 6608CD / 8808CB-P. 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 source: 6608CDProduct title, Description and explicit options or specifications · checked 2026-09-13 · GAS Hardware
GAS Hardware source: 8808CB-PProduct title, Description and explicit options or specifications · checked 2026-09-13 · GAS Hardware

Identification and scope details from the cited sources; each row retains its source locator.
Exact source identifier	6608CD GAS Hardware source: 6608CDProduct title, Description and explicit options or specifications · checked 2026-09-13 · GAS Hardware
Drive and application	The supplier specifies Chamberlain full-chain-drive openers in eight-foot garage-door applications. GAS Hardware source: 6608CDProduct title, Description and explicit options or specifications · checked 2026-09-13 · GAS Hardware
Listed contents	The description names extension rails and a replacement chain. GAS Hardware source: 6608CDProduct title, Description and explicit options or specifications · checked 2026-09-13 · GAS Hardware
Unverified scope	No exact opener models, compatible revisions, component lengths or variant SKUs are listed. GAS Hardware source: 6608CDProduct title, Description and explicit options or specifications · checked 2026-09-13 · GAS Hardware
Exact source identifier	8808CB-P GAS Hardware source: 8808CB-PProduct title, Description and explicit options or specifications · checked 2026-09-13 · GAS Hardware
Drive and application	The supplier specifies Chamberlain belt-drive openers in eight-foot garage-door applications. GAS Hardware source: 8808CB-PProduct title, Description and explicit options or specifications · checked 2026-09-13 · GAS Hardware
Listed contents	The description names extension rails and a replacement belt. GAS Hardware source: 8808CB-PProduct title, Description and explicit options or specifications · checked 2026-09-13 · GAS Hardware
Unverified scope	No exact opener models, compatible revisions, component lengths or variant SKUs are listed. GAS Hardware source: 8808CB-PProduct title, Description and explicit options or specifications · checked 2026-09-13 · GAS Hardware
Comparison boundary	6608CD full-chain-drive and 8808CB-P belt-drive labels describe different kit applications. Neither is established as a substitute for the other; preserve the -P suffix. GAS Hardware source: 8808CB-PProduct title, Description and explicit options or specifications · checked 2026-09-13 · GAS Hardware

Sources & review dates

GAS Hardware source: 6608CDGAS Hardware · US · checked 2026-09-13
GAS Hardware source: 8808CB-PGAS 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.

Continue with the exact equipment.

Browse model guides & official documents →

Browse published equipment references →

Missing from this collection?

Check the full supplier number and the cited source. A missing variant or specification remains unverified.

Look up an exact part or supplier number →

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.