Guardian / Garage door opener / Model guide

Guardian 928CC parts and component reference

Identify Guardian 928CC controls, lock-related hardware and assembly numbers, including B5A928, GU-CTM, GU-LOCK2 and GUDT-378, from its official parts-list section.

US documentationSources checked 2026-09-12Independent Anderson reference

Match the model before choosing a document

Identifier: 928CC. Keep every letter and suffix on your product label when checking applicability.

The 928CC installation/accessory table identifies B5A928 as a 12V 5Ah battery, enclosure and hardware kit. It separately lists GUDT-359 as a 12V 5Ah battery. A matching electrical rating does not turn these two identifiers into aliases.

The same section lists GU-CTM as the cable-tension monitor, GU-LOCK2 as the door lock and GU-LOCKX as an 8 m service-lock extension cable. These are model-scoped component references, with no inferred lock-to-cable or monitor-to-board connection.

The assembly section names GUDT-378 as the receiver and logic board, GUDT-366 as the control-panel cover and GUDT-368 as the chassis cover. GUDT-358 appears in both tables and remains one emergency-release cord identity in this model lookup.

Documented specifications

Values apply to the configuration named in each row. Follow the source for its exact scope.
12V 5Ah battery, enclosure and hardware kit	B5A928Listed for the exact 928CC section in this book revision; no current-stock or later-revision interchangeability claim.Source: Guardian replacement parts book (official DOCX; cover dated October 1, 2024) · 928CC section; embedded table word/media/image34.emf, row 1
12V 5Ah battery	GUDT-359Listed for the exact 928CC section in this book revision; no current-stock or later-revision interchangeability claim.Source: Guardian replacement parts book (official DOCX; cover dated October 1, 2024) · 928CC section; embedded table word/media/image34.emf, row 11
Cable tension monitor	GU-CTMListed for the exact 928CC section in this book revision; no current-stock or later-revision interchangeability claim.Source: Guardian replacement parts book (official DOCX; cover dated October 1, 2024) · 928CC section; embedded table word/media/image34.emf, row 7
Door lock	GU-LOCK2Listed for the exact 928CC section in this book revision; no current-stock or later-revision interchangeability claim.Source: Guardian replacement parts book (official DOCX; cover dated October 1, 2024) · 928CC section; embedded table word/media/image34.emf, row 8
Service-lock extension cable, 8m	GU-LOCKXListed for the exact 928CC section in this book revision; no current-stock or later-revision interchangeability claim.Source: Guardian replacement parts book (official DOCX; cover dated October 1, 2024) · 928CC section; embedded table word/media/image34.emf, row 12
Receiver and logic board	GUDT-378Listed for the exact 928CC section in this book revision; no current-stock or later-revision interchangeability claim.Source: Guardian replacement parts book (official DOCX; cover dated October 1, 2024) · 928CC section; embedded table word/media/image35.emf, row 10
Control panel cover	GUDT-366Listed for the exact 928CC section in this book revision; no current-stock or later-revision interchangeability claim.Source: Guardian replacement parts book (official DOCX; cover dated October 1, 2024) · 928CC section; embedded table word/media/image35.emf, row 1
Chassis cover	GUDT-368Listed for the exact 928CC section in this book revision; no current-stock or later-revision interchangeability claim.Source: Guardian replacement parts book (official DOCX; cover dated October 1, 2024) · 928CC section; embedded table word/media/image35.emf, row 3
Remote control	D3BListed for the exact 928CC section in this book revision; no current-stock or later-revision interchangeability claim.Source: Guardian replacement parts book (official DOCX; cover dated October 1, 2024) · 928CC section; embedded table word/media/image34.emf, row 3

Official documents & support

These links open the manufacturer’s document or support page. Manuals are hosted by their issuer.

Filter the documents listed below by model or document type. A match is not confirmation of your unit’s revision or installed accessories; read the scope note before using a document.

1 of 1 listed documents shown.

parts list
Guardian 928CC parts-list section — official DOCX parts book
Use the exact 928CC heading in this manufacturer-hosted DOCX parts book. This link supplies a parts list, not a checked owner manual, installation procedure or PDF. The cover is dated October 1, 2024; the filename/path does not establish a newer revision.
Models: 928CCenDocument: Cover dated October 1, 2024US

Parts & related references

Match the exact model and source conditions before choosing a part. Conditional statements and explicit exclusions do not confirm a fit. Open a row for its exact pairing and source.

Shared scope and cautions for the following 9 references

Applies only within this source scope

Market: US
Model scope: 928CC
Exact model 928CC listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.

Guardian 3-FDCC
3-FDCC is identified in the book as deluxe door control console. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for 3-FDCC · Conditional
3-FDCC is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From 3-FDCC to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image34.emf, row 4; exact model heading 928CC; installation accessories item 4 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian B5A928
B5A928 is identified in the book as 12v 5ah battery, enclosure and hardware kit. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for B5A928 · Conditional
B5A928 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From B5A928 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image34.emf, row 1; exact model heading 928CC; installation accessories item 1 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian D3B
D3B is identified in the book as remote control. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for D3B · Conditional
D3B is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From D3B to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image34.emf, row 3; exact model heading 928CC; installation accessories item 3 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GU-CTM
GU-CTM is identified in the book as cable tension monitor. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GU-CTM · Conditional
GU-CTM is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GU-CTM to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image34.emf, row 7; exact model heading 928CC; installation accessories item 7 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GU-LOCK2
GU-LOCK2 is identified in the book as door lock. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GU-LOCK2 · Conditional
GU-LOCK2 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GU-LOCK2 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image34.emf, row 8; exact model heading 928CC; installation accessories item 8 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GU-LOCKX
GU-LOCKX is identified in the book as service-lock extension cable, 8m. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GU-LOCKX · Conditional
GU-LOCKX is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GU-LOCKX to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image34.emf, row 12; exact model heading 928CC; installation accessories item 12 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUAT-201
GUAT-201 is identified in the book as photo eye safety system (emitter + sensor with brackets). Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUAT-201 · Conditional
GUAT-201 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUAT-201 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image34.emf, row 2; exact model heading 928CC; installation accessories item 2 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-354
GUDT-354 is identified in the book as collar. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-354 · Conditional
GUDT-354 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-354 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image34.emf, row 5; exact model heading 928CC; installation accessories item 5 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-355
GUDT-355 is identified in the book as mounting bracket. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-355 · Conditional
GUDT-355 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-355 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image34.emf, row 6; exact model heading 928CC; installation accessories item 6 · checked 2026-09-12 · Cover dated October 1, 2024

Guardian GUDT-358
GUDT-358 is identified in the book as emergency release cord with knob. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Exact pairing & sources for GUDT-358 · Conditional
GUDT-358 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-358 to 928CC
Applies only within this source scope
- Market: US
- Model scope: 928CC
- Exact model 928CC listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image34.emf, row 9; exact model heading 928CC; installation accessories item 9 · checked 2026-09-12 · Cover dated October 1, 2024
- Source 2: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 20; exact model heading 928CC; assembly item 20 · checked 2026-09-12 · Cover dated October 1, 2024

Shared scope and cautions for the following 22 references

Applies only within this source scope

Market: US
Model scope: 928CC
Exact model 928CC listing in the replacement-parts book: Cover dated October 1, 2024. Confirm the exact part and installed configuration; a listing does not establish interchangeability with another revision, model or similarly named item.

Guardian GUDT-359
GUDT-359 is identified in the book as 12v 5ah battery. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-359 · Conditional
GUDT-359 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-359 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image34.emf, row 11; exact model heading 928CC; installation accessories item 11 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-360
GUDT-360 is identified in the book as hardware bag. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-360 · Conditional
GUDT-360 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-360 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image34.emf, row 10; exact model heading 928CC; installation accessories item 10 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-361
GUDT-361 is identified in the book as motion sensor. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-361 · Conditional
GUDT-361 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-361 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 21; exact model heading 928CC; assembly item 21 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-366
GUDT-366 is identified in the book as control panel cover. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-366 · Conditional
GUDT-366 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-366 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 1; exact model heading 928CC; assembly item 1 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-367
GUDT-367 is identified in the book as light lens. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-367 · Conditional
GUDT-367 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-367 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 2; exact model heading 928CC; assembly item 2 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-368
GUDT-368 is identified in the book as chassis cover. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-368 · Conditional
GUDT-368 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-368 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 3; exact model heading 928CC; assembly item 3 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-369
GUDT-369 is identified in the book as chassis. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-369 · Conditional
GUDT-369 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-369 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 4; exact model heading 928CC; assembly item 4 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-373
GUDT-373 is identified in the book as motor mounting bracket. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-373 · Conditional
GUDT-373 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-373 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 5; exact model heading 928CC; assembly item 5 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-374
GUDT-374 is identified in the book as drive shaft assembly. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-374 · Conditional
GUDT-374 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-374 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 6; exact model heading 928CC; assembly item 6 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-375
GUDT-375 is identified in the book as motor and clutch assembly. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-375 · Conditional
GUDT-375 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-375 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 7; exact model heading 928CC; assembly item 7 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-376
GUDT-376 is identified in the book as transformer. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-376 · Conditional
GUDT-376 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-376 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 8; exact model heading 928CC; assembly item 8 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-377
GUDT-377 is identified in the book as led lamp plate. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-377 · Conditional
GUDT-377 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-377 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 9; exact model heading 928CC; assembly item 9 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-378
GUDT-378 is identified in the book as receiver and logic board. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-378 · Conditional
GUDT-378 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-378 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 10; exact model heading 928CC; assembly item 10 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-379
GUDT-379 is identified in the book as limit encoder. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-379 · Conditional
GUDT-379 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-379 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 11; exact model heading 928CC; assembly item 11 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-381
GUDT-381 is identified in the book as button membrane. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-381 · Conditional
GUDT-381 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-381 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 12; exact model heading 928CC; assembly item 12 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-382
GUDT-382 is identified in the book as battery backup connector and terminal. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-382 · Conditional
GUDT-382 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-382 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 13; exact model heading 928CC; assembly item 13 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-383
GUDT-383 is identified in the book as led driver board. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-383 · Conditional
GUDT-383 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-383 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 14; exact model heading 928CC; assembly item 14 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-384
GUDT-384 is identified in the book as drive sprocket. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-384 · Conditional
GUDT-384 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-384 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 15; exact model heading 928CC; assembly item 15 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-385
GUDT-385 is identified in the book as drive chain. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-385 · Conditional
GUDT-385 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-385 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 16; exact model heading 928CC; assembly item 16 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-386
GUDT-386 is identified in the book as c-clip. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-386 · Conditional
GUDT-386 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-386 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 17; exact model heading 928CC; assembly item 17 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-387
GUDT-387 is identified in the book as bushings; source position quantity 2. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-387 · Conditional
GUDT-387 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-387 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 18; exact model heading 928CC; assembly item 18 · checked 2026-09-12 · Cover dated October 1, 2024
Guardian GUDT-388
GUDT-388 is identified in the book as power cord. Its direct model listings belong to the cover dated October 1, 2024 source and require exact configuration confirmation.
Read the shared scope and cautions above
Exact pairing & sources for GUDT-388 · Conditional
GUDT-388 is listed directly under model 928CC in the cover dated October 1, 2024 parts book; confirm source revision and exact configuration.
From GUDT-388 to 928CC
- Source 1: GuardianGuardian replacement-parts book, cover dated October 1, 2024 · DOCX embedded table word/media/image35.emf, row 19; exact model heading 928CC; assembly item 19 · checked 2026-09-12 · Cover dated October 1, 2024

Before applying these details

No V3 pairing or negative V3 compatibility claim is made for 928CC from its absence in this table.
GUDT-387 has a source position quantity of two; that is not a claim about pack quantity or availability.
The 8 m GU-LOCKX length is the reviewed source value; it does not establish compatibility with a separately named lock by inference.
A listed component does not establish that it is installed, available, interchangeable with another revision or approved as a replacement for a different part number.
The source provides part references for this exact model. Opener power rating, door capacity, dimensions and a current installation manual are not established by this parts-list review.

Sources & scope

Guardian replacement parts book (official DOCX; cover dated October 1, 2024)ADH Guardian USA LLC · checked 2026-09-12 · Cover dated October 1, 2024

Anderson prepared this independent reference from the listed sources. It is not the manufacturer’s official support site, an installation inspection or a product test. Current stock, parts availability and warranty entitlement are not established by a listing.

Describe the symptom

Browse the troubleshooting guide

Troubleshooting guides explain observations; they do not identify a failed part from a model number.

More from Guardian

Need service in Connecticut? Check Anderson’s listed service areas or describe your equipment and symptom. This national reference library does not imply nationwide repair coverage.