Excavator Engine Parts

222-5906 Engine Control Module Wiring Harness for CAT C7

Q: What numbers are documented for 222-5906?

Primary Equipment Part Number: 222-5906. Connector-Layout Variant - Verify Complete Harness: 261-3782. Related C7 Harness - Different Connector Group: 261-3781. Related C7 Harness - Different Connector Group: 222-5905. Related C7 Harness - Different Connector Group: 222-5907. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 222-5906 before ordering?

Match the complete part number, compare the connector or mounting arrangement with the product photos, and confirm the machine or engine model and serial range. Send clear photos of the original unit when requesting a quote.

222-5906 Engine Control Module Wiring Harness for CAT C7, OEM/reference 222-5906, C7 ECM Wiring Harness, product view 1

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OEM / reference222-5906

SpecificationC7 ECM Wiring Harness

Catalog ID82091385

CAT 222-5906 engine-control wiring harness for C7 on-highway truck-engine applications. Caterpillar lists 222-5906 as a discontinued harness assembly and identifies C7 compatibility; the C7 electrical schematic groups it with connector-layout variant 261-3782. Confirm the ECM connector, branch count and engine serial prefix before ordering.

Product Type: Engine Control Module Wiring Harness
Product Brand: EexcavaStart
Engine Family: CAT C7
Harness Application: Engine control signals and power
Equipment Status: 222-5906 is discontinued by CAT

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Part-number relationships

Relationship	Reference family	Number
Primary Equipment Part Number	CAT C7 harness assembly	222-5906
Connector-Layout Variant - Verify Complete Harness	CAT C7 electrical schematic	261-3782
Related C7 Harness - Different Connector Group	CAT C7 electrical schematic	261-3781
Related C7 Harness - Different Connector Group	CAT C7 electrical schematic	222-5905
Related C7 Harness - Different Connector Group	CAT C7 electrical schematic	222-5907

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

222-5906

Related assembly

261-3781
222-5905
222-5907

Other documented relationship

261-3782

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

Product summary

C7 ECM Wiring Harness

Category: Excavator Engine Parts
Catalog ID: 82091385
Photo views: 7

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

2 model references

Engine family: CAT C7 on-highway truck engine
Fitment limitation: Confirm ECM connector, branch layout, sensor connectors and engine serial prefix; 261-3782 is not shown as an unqualified direct interchange

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 222-5906

Which machines use 222-5906?

Recorded compatible model references include Engine family: CAT C7 on-highway truck engine, Fitment limitation: Confirm ECM connector, branch layout, sensor connectors and engine serial prefix; 261-3782 is not shown as an unqualified direct interchange. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 222-5906?

Related assembly numbers (not direct interchanges): 261-3781, 222-5905, 222-5907.

How do I confirm 222-5906 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 verified references from the same system.

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