Guardian / Part reference

Guardian GUT-7B belt for nominal 7-foot T-rail

GUT-7B identifies the belt for the nominal 7-foot T-rail designation. The source does not establish exact opener fitment.

US source scopeUpdated 2026-09-15Independent Anderson reference

Match the whole number.

Manufacturer identifier: GUT-7B. 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-7B · checked 2026-09-11 · Guardian
Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 47, row 4; t rail belt; t rail belt item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian

Values apply to the exact identifier and scope in the cited source.
Component function	belt View source and citation details Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-7B · checked 2026-09-11 · Guardian
Source assembly type	belt View source and citation details Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-7B · checked 2026-09-11 · Guardian
Nominal T-rail designation	7 ft View source and citation details Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-7B · checked 2026-09-11 · Guardian
Dimension limit	Nominal source designation; not a measured overall rail or belt length. View source and citation details Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-7B · 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. View source and citation details Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-7B · checked 2026-09-11 · Guardian
Belt-width identification	This parts drawing does not specify the belt width or establish an idler kit equivalent. View source and citation details Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-7B · 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. View source and citation details Guardian earlier belt conversion instruction scopePDF p1, left/right replacement comparison and bottom idler dimensions · checked 2026-09-11 · GDAMU07A-1 · Guardian
Book description (t rail belt; listing context only)	belt for 7’ t-rail View source and citation details Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 47, row 4; t rail belt; t rail belt item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian
Source revision	Cover dated October 1, 2024 View source and citation details Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 47, row 4; t rail belt; t rail belt item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian
Nominal T-rail designation	7 ft View source and citation details Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 47, row 4; t rail belt; t rail belt item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian
Dimension limit	Nominal rail designation; not a measured overall part or belt length. View source and citation details Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 47, row 4; t rail belt; t rail belt item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian

Compare the nominal T-rail belt and chain references

Compare component type and nominal 7-foot or 8-foot designation together. These designations are not measured overall component lengths or exact opener fitment. The belt references retain the earlier conversion and idler requirement without assigning a belt width to either SKU.

Separate references with their own source scope. This comparison establishes no replacement or interchangeability.
Exact reference	Recorded distinctions
GUT-7B This reference	Guardian GUT-7B belt for nominal 7-foot T-rail GUT-7B identifies the belt for the nominal 7-foot T-rail designation. The source does not establish exact opener fitment. View sources and citation details Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-7B · checked 2026-09-11 · Guardian Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 47, row 4; t rail belt; t rail belt item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian Component function: belt View source and citation details Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-7B · checked 2026-09-11 · Guardian Source assembly type: belt View source and citation details Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-7B · checked 2026-09-11 · Guardian Nominal T-rail designation: 7 ft View source and citation details Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-7B · checked 2026-09-11 · Guardian Dimension limit: Nominal source designation; not a measured overall rail or belt length. View source and citation details Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-7B · 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. View source and citation details Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-7B · checked 2026-09-11 · Guardian Belt-width identification: This parts drawing does not specify the belt width or establish an idler kit equivalent. View source and citation details Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-7B · 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. View source and citation details Guardian earlier belt conversion instruction scopePDF p1, left/right replacement comparison and bottom idler dimensions · checked 2026-09-11 · GDAMU07A-1 · Guardian Nominal T-rail designation: 7 ft View source and citation details Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 47, row 4; t rail belt; t rail belt item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian Dimension limit: Nominal rail designation; not a measured overall part or belt length. View source and citation details Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 47, row 4; t rail belt; t rail belt item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian Read GUT-7B’s pairing status and source conditions →
GUT-7C	Guardian GUT-7C chain kit for nominal 7-foot T-rail GUT-7C identifies the chain kit for the nominal 7-foot T-rail designation. The source does not establish exact opener fitment. View sources and citation details Guardian chain and belt T-rail parts identificationPage 1, parts table item 3, exact part-number row GUT-7C · checked 2026-09-11 · Guardian Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 46, row 4; t rail chain; t rail chain item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian Component function: chain kit View source and citation details Guardian chain and belt T-rail parts identificationPage 1, parts table item 3, exact part-number row GUT-7C · checked 2026-09-11 · Guardian Source assembly type: chain View source and citation details Guardian chain and belt T-rail parts identificationPage 1, parts table item 3, exact part-number row GUT-7C · checked 2026-09-11 · Guardian Nominal T-rail designation: 7 ft View source and citation details Guardian chain and belt T-rail parts identificationPage 1, parts table item 3, exact part-number row GUT-7C · checked 2026-09-11 · Guardian Dimension limit: Nominal source designation; not a measured overall rail or belt length. View source and citation details Guardian chain and belt T-rail parts identificationPage 1, parts table item 3, exact part-number row GUT-7C · 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. View source and citation details Guardian chain and belt T-rail parts identificationPage 1, parts table item 3, exact part-number row GUT-7C · checked 2026-09-11 · Guardian Nominal T-rail designation: 7 ft View source and citation details Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 46, row 4; t rail chain; t rail chain item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian Dimension limit: Nominal rail designation; not a measured overall part or belt length. View source and citation details Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 46, row 4; t rail chain; t rail chain item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian Read GUT-7C’s pairing status and source conditions →
GUT-8B	Guardian GUT-8B belt for nominal 8-foot T-rail GUT-8B identifies the belt for the nominal 8-foot T-rail designation. The source does not establish exact opener fitment. View sources and citation details Guardian chain and belt T-rail parts identificationPage 2, parts table item 3, exact part-number row GUT-8B · checked 2026-09-11 · Guardian Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 47, row 5; t rail belt; t rail belt item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian Component function: belt View source and citation details 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 View source and citation details 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 View source and citation details 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. View source and citation details 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. View source and citation details 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. View source and citation details 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. View source and citation details Guardian earlier belt conversion instruction scopePDF p1, left/right replacement comparison and bottom idler dimensions · checked 2026-09-11 · GDAMU07A-1 · Guardian Nominal T-rail designation: 8 ft View source and citation details Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 47, row 5; t rail belt; t rail belt item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian Dimension limit: Nominal rail designation; not a measured overall part or belt length. View source and citation details Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 47, row 5; t rail belt; t rail belt item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian Read GUT-8B’s pairing status and source conditions →
GUT-8C	Guardian GUT-8C chain kit for nominal 8-foot T-rail GUT-8C identifies the chain kit for the nominal 8-foot T-rail designation. The source does not establish exact opener fitment. View sources and citation details Guardian chain and belt T-rail parts identificationPage 1, parts table item 3, exact part-number row GUT-8C · checked 2026-09-11 · Guardian Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 46, row 5; t rail chain; t rail chain item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian Component function: chain kit View source and citation details Guardian chain and belt T-rail parts identificationPage 1, parts table item 3, exact part-number row GUT-8C · checked 2026-09-11 · Guardian Source assembly type: chain View source and citation details Guardian chain and belt T-rail parts identificationPage 1, parts table item 3, exact part-number row GUT-8C · checked 2026-09-11 · Guardian Nominal T-rail designation: 8 ft View source and citation details Guardian chain and belt T-rail parts identificationPage 1, parts table item 3, exact part-number row GUT-8C · checked 2026-09-11 · Guardian Dimension limit: Nominal source designation; not a measured overall rail or belt length. View source and citation details Guardian chain and belt T-rail parts identificationPage 1, parts table item 3, exact part-number row GUT-8C · 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. View source and citation details Guardian chain and belt T-rail parts identificationPage 1, parts table item 3, exact part-number row GUT-8C · checked 2026-09-11 · Guardian Nominal T-rail designation: 8 ft View source and citation details Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 46, row 5; t rail chain; t rail chain item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian Dimension limit: Nominal rail designation; not a measured overall part or belt length. View source and citation details Guardian replacement-parts book, cover dated October 1, 2024DOCX native table 46, row 5; t rail chain; t rail chain item 3 · checked 2026-09-12 · Cover dated October 1, 2024 · Guardian Read GUT-8C’s pairing status and source conditions →

A specification absent from one reference is not established by the other. Keep the exact identifier, configuration and cited revision when comparing.

Documented fitment & exclusions

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

No equipment or component 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-7B is verified in this reference.

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

This reference has no documented compatible or incompatible pairing to check. Use the facts and source scope above to identify the item. You can also look up another part or accessory. A missing pairing does not establish incompatibility.

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 replacement-parts book, cover dated October 1, 2024Guardian · US · checked 2026-09-12 · Cover dated October 1, 2024
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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Confirm a missing detail

Use Guardian official support and match the complete part number, equipment model and production details with the source scope.

Use safely accessible labels and existing paperwork. Do not remove powered covers or adjust springs or cables to identify a component.

This is an independent Anderson reference. Manufacturer names identify the equipment and do not imply affiliation or authorized-dealer status.

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