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Excavator Spare Parts

9G-7641 3-Position 12V/24V Key Start Switch for CAT 320C 345C

Name: 9G-7641 3-Position 12V/24V Key Start Switch for CAT 320C 345C
Brand: EexcavaStart
SKU: 9G-7641

OEM / reference9G-7641

Specification3-Position Key Start Switch

Catalog ID53184359

Instrument-panel key start switch identified by CAT part number 9G-7641. The official CAT record specifies a spring-return, three-position 12/24V switch with starter lockout and publishes compatibility across 320C, 345C and many other excavator and heavy-equipment families. Three exact owned physical views are retained; the CTP-branded package and a catalog render are excluded from the gallery.

Fitment status: Verified · Checked 2026-08-02

Product Type: Instrument-panel key start switch
Positions: 3 positions with spring return
Voltage: 12V / 24V
Diameter: 1.89 in
Overall Length: 2.9 in
Thread Size: 1-32 lock / 8-32 terminal
Operating Temperature: -40 to 176 degrees F

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Part-number relationships

Relationship	Reference family	Number
Primary Part Number	CAT key-start switch	9G-7641
Formatted Alias	Same number without separator	9G7641

Fitment data verified. Exact-reference evidence is retained in the protected product audit record · Checked 2026-08-02.

Product fitment guide

Part numbers and compatible models

Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.

Part identification

Reference numbers

Primary number

9G-7641

Formatting alias

9G7641

Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.

Product summary

3-Position Key Start Switch

Category: Excavator Spare Parts
Catalog ID: 53184359
Photo views: 3

Before ordering

Confirm these details

Match the complete part number on the original component.
Compare connectors, mounting points and visible dimensions with the product photos.
Confirm the exact machine or engine model and serial range before ordering.

Machine fitment

Compatible model references

4 model references

CAT excavator examples: 320C / 320D / 323D / 345C / 345D
CAT compact excavator examples: 303.5C / 304C CR / 305.5E / 305.5E2 / 306E / 307D / 308D
Additional CAT equipment: Selected loaders, graders, tractors, trucks and other official compatible models
Fitment limitation: Confirm 9G-7641, terminal markings, panel thread and machine serial

Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.

Quick fitment answers

Common questions about 9G-7641

Which machines use 9G-7641?

Recorded compatible model references include CAT excavator examples: 320C / 320D / 323D / 345C / 345D, CAT compact excavator examples: 303.5C / 304C CR / 305.5E / 305.5E2 / 306E / 307D / 308D, Additional CAT equipment: Selected loaders, graders, tractors, trucks and other official compatible models, Fitment limitation: Confirm 9G-7641, terminal markings, panel thread and machine serial. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 9G-7641?

Formatting aliases for the same number: 9G7641.

How do I confirm 9G-7641 before ordering?

Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. Send clear photos of the original unit and connector layout when requesting a quote.

Continue comparing recovered references from the same system.

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