Excavator Spare Parts

121-1022 3A 600V Diode for Cat 320D, 336F and 345C

Name: 121-1022 3A 600V Diode for Cat 320D, 336F and 345C
Brand: EexcavaStart
SKU: 121-1022

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OEM / reference121-1022

Specification3A 600V Electrical Diode

Catalog ID74617918

121-1022 is a one-way electrical diode rated at 3A forward current and 600V peak inverse voltage. The official Cat record lists 320D, 336F and 345C excavators among many compatible machines. Confirm the complete number, diode orientation, connector and machine serial range before ordering.

Product Type: Electrical diode
Forward Current: 3A
Peak Inverse Voltage: 600V
Electrical Direction: One-way current flow
Condition: New replacement part

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Part-number relationships

Relationship	Reference family	Number
Primary Equipment Part Number	Official Cat parts reference	121-1022

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

121-1022

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

Product summary

3A 600V Electrical Diode

Category: Excavator Spare Parts
Catalog ID: 74617918
Photo views: 5

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

3 model references

Excavator Examples: Cat 320D / 336F / 345C
Additional Published Equipment: Cat compact excavators, wheeled excavators, material handlers and generator sets
Fitment Limitation: Confirm 121-1022, diode orientation, connector and machine serial range

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 121-1022

Which machines use 121-1022?

Recorded compatible model references include Excavator Examples: Cat 320D / 336F / 345C, Additional Published Equipment: Cat compact excavators, wheeled excavators, material handlers and generator sets, Fitment Limitation: Confirm 121-1022, diode orientation, connector and machine serial range. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 121-1022?

No alternate number is listed for 121-1022. Send the original nameplate for an alternate-number check.

How do I confirm 121-1022 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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