Guardian / Part reference

Guardian GUT-8B

GUT-8B identifies the belt for the nominal 8-foot T-rail designation. The source does not establish exact opener fitment.

US source scopeUpdated 2026-09-12Independent Anderson reference

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Manufacturer identifier: GUT-8B. Keep every character when comparing it with your label or paperwork. A similar number does not establish the same component.

Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-8B · checked 2026-09-11 · Guardian

Values apply to the exact identifier and scope in the cited source.
Component function	belt Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-8B · checked 2026-09-11 · Guardian
Source assembly type	belt Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-8B · checked 2026-09-11 · Guardian
Nominal T-rail designation	8 ft Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-8B · checked 2026-09-11 · Guardian
Dimension limit	Nominal source designation; not a measured overall rail or belt length. Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-8B · checked 2026-09-11 · Guardian
Selection limits	No exact opener-model, production cutoff or cross-part interchangeability claim is supplied by this source. A nominal 7/8-foot T-rail designation is not an independently measured overall rail length or installation approval. Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-8B · checked 2026-09-11 · Guardian
Belt-width identification	This parts drawing does not specify the belt width or establish an idler kit equivalent. Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-8B · checked 2026-09-11 · Guardian
Earlier conversion constraint	The earlier 9-to-11 mm belt conversion requires the accompanying idler change. This does not establish the width of this belt SKU or permit belt-only substitution. Guardian earlier belt conversion instruction scopePDF p1, left/right replacement comparison and bottom idler dimensions · checked 2026-09-11 · GDAMU07A-1 · Guardian

Documented fitment & exclusions

Read the exact equipment or receiver, market, production and variant limits in every row. An omitted pairing has not been verified by this reference.

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

Direct replacement paths

No direct successor for GUT-8B is verified in this reference.

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

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Selected: GUT-8B · Read its reference. Selection identifies a record; it does not confirm fitment.

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An accessory pairing, including a receiver or wall console, applies only to the exact listed pair and source conditions. It does not establish suitability for your installed opener or compatibility through another device.

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Recall references

No recall reference is included for this identifier in the published dataset. This is not a safety clearance or proof that no recall exists.

Sources & scope

Guardian earlier belt conversion instruction scopeGuardian · US · checked 2026-09-11 · GDAMU07A-1
Guardian chain and belt T-rail parts identificationGuardian · US · checked 2026-09-11

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.

A reference listing does not establish current stock, a price, eligibility for manufacturer support or that a component is faulty.