Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Part Number | CAT key-start switch | 9G-7641 |
| Formatted Alias | Same number without separator | 9G7641 |
Excavator Spare Parts
9G-7641 3-Position 12V/24V Key Start Switch for CAT 320C 345C
Product video
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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.
- 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
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
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
Formatting alias
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
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.
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